--- zzzz-none-000/linux-2.4.17/drivers/video/aty128fb.c	2001-11-11 18:09:37.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/drivers/video/aty128fb.c	2004-11-24 13:23:17.000000000 +0000
@@ -1,2667 +1,3037 @@
-/* $Id: aty128fb.c,v 1.1.1.1.36.1 1999/12/11 09:03:05 Exp $
- *  linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128
- *
- *  Copyright (C) 1999-2000, Brad Douglas <brad@neruo.com>
- *  Copyright (C) 1999, Anthony Tong <atong@uiuc.edu>
- *
- *                Ani Joshi / Jeff Garzik
- *                      - Code cleanup
- *
- *                Andreas Hundt <andi@convergence.de>
- *                      - FB_ACTIVATE fixes
- *
- *  Based off of Geert's atyfb.c and vfb.c.
- *
- *  TODO:
- *		- panning
- *		- monitor sensing (DDC)
- *              - virtual display
- *		- other platform support (only ppc/x86 supported)
- *		- hardware cursor support
- *		- ioctl()'s
- *
- *    Please cc: your patches to brad@neruo.com.
- */
-
-/*
- * A special note of gratitude to ATI's devrel for providing documentation,
- * example code and hardware. Thanks Nitya.	-atong and brad
- */
-
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/tty.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <asm/uaccess.h>
-#include <linux/fb.h>
-#include <linux/init.h>
-#include <linux/selection.h>
-#include <linux/console.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_PPC
-#include <asm/prom.h>
-#include <asm/pci-bridge.h>
-#include <video/macmodes.h>
-#ifdef CONFIG_NVRAM
-#include <linux/nvram.h>
-#endif
-#endif
-
-#ifdef CONFIG_ADB_PMU
-#include <linux/adb.h>
-#include <linux/pmu.h>
-#endif
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-#include <asm/backlight.h>
-#endif
-
-#ifdef CONFIG_FB_COMPAT_XPMAC
-#include <asm/vc_ioctl.h>
-#endif
-
-#include <video/fbcon.h>
-#include <video/fbcon-cfb8.h>
-#include <video/fbcon-cfb16.h>
-#include <video/fbcon-cfb24.h>
-#include <video/fbcon-cfb32.h>
-
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif
-
-#include "aty128.h"
-
-/* Debug flag */
-#undef DEBUG
-
-#ifdef DEBUG
-#define DBG(fmt, args...)		printk(KERN_DEBUG "aty128fb: %s " fmt, __FUNCTION__, ##args);
-#else
-#define DBG(fmt, args...)
-#endif
-
-#ifndef CONFIG_PPC
-/* default mode */
-static struct fb_var_screeninfo default_var __initdata = {
-    /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
-    640, 480, 640, 480, 0, 0, 8, 0,
-    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-    0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
-    0, FB_VMODE_NONINTERLACED
-};
-
-#else /* CONFIG_PPC */
-/* default to 1024x768 at 75Hz on PPC - this will work
- * on the iMac, the usual 640x480 @ 60Hz doesn't. */
-static struct fb_var_screeninfo default_var = {
-    /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
-    1024, 768, 1024, 768, 0, 0, 8, 0,
-    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
-    0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3,
-    FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
-};
-#endif /* CONFIG_PPC */
-
-/* default modedb mode */
-/* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
-static struct fb_videomode defaultmode __initdata = {
-	refresh:	60,
-	xres:		640,
-	yres:		480,
-	pixclock:	39722,
-	left_margin:	48,
-	right_margin:	16,
-	upper_margin:	33,
-	lower_margin:	10,
-	hsync_len:	96,
-	vsync_len:	2,
-	sync:		0,
-	vmode:		FB_VMODE_NONINTERLACED
-};
-
-/* struct to hold chip description information */
-struct aty128_chip_info {
-    const char *name;
-    unsigned short device;
-    int chip_gen;
-};
-
-/* Chip generations */
-enum {
-	rage_128,
-	rage_128_pro,
-	rage_M3
-};
-
-/* supported Rage128 chipsets */
-static struct aty128_chip_info aty128_pci_probe_list[] __initdata =
-{
-    {"Rage128 RE (PCI)", PCI_DEVICE_ID_ATI_RAGE128_RE, rage_128},
-    {"Rage128 RF (AGP)", PCI_DEVICE_ID_ATI_RAGE128_RF, rage_128},
-    {"Rage128 RK (PCI)", PCI_DEVICE_ID_ATI_RAGE128_RK, rage_128},
-    {"Rage128 RL (AGP)", PCI_DEVICE_ID_ATI_RAGE128_RL, rage_128},
-    {"Rage128 Pro PF (AGP)", PCI_DEVICE_ID_ATI_RAGE128_PF, rage_128_pro},
-    {"Rage128 Pro PR (PCI)", PCI_DEVICE_ID_ATI_RAGE128_PR, rage_128_pro},
-    {"Rage Mobility M3 (PCI)", PCI_DEVICE_ID_ATI_RAGE128_LE, rage_M3},
-    {"Rage Mobility M3 (AGP)", PCI_DEVICE_ID_ATI_RAGE128_LF, rage_M3},
-    {NULL, 0, rage_128}
- };
-
-/* packed BIOS settings */
-#ifndef CONFIG_PPC
-typedef struct {
-	u8 clock_chip_type;
-	u8 struct_size;
-	u8 accelerator_entry;
-	u8 VGA_entry;
-	u16 VGA_table_offset;
-	u16 POST_table_offset;
-	u16 XCLK;
-	u16 MCLK;
-	u8 num_PLL_blocks;
-	u8 size_PLL_blocks;
-	u16 PCLK_ref_freq;
-	u16 PCLK_ref_divider;
-	u32 PCLK_min_freq;
-	u32 PCLK_max_freq;
-	u16 MCLK_ref_freq;
-	u16 MCLK_ref_divider;
-	u32 MCLK_min_freq;
-	u32 MCLK_max_freq;
-	u16 XCLK_ref_freq;
-	u16 XCLK_ref_divider;
-	u32 XCLK_min_freq;
-	u32 XCLK_max_freq;
-} __attribute__ ((packed)) PLL_BLOCK;
-#endif /* !CONFIG_PPC */
-
-/* onboard memory information */
-struct aty128_meminfo {
-    u8 ML;
-    u8 MB;
-    u8 Trcd;
-    u8 Trp;
-    u8 Twr;
-    u8 CL;
-    u8 Tr2w;
-    u8 LoopLatency;
-    u8 DspOn;
-    u8 Rloop;
-    const char *name;
-};
-
-/* various memory configurations */
-static const struct aty128_meminfo sdr_128   =
-    { 4, 4, 3, 3, 1, 3, 1, 16, 30, 16, "128-bit SDR SGRAM (1:1)" };
-static const struct aty128_meminfo sdr_64    =
-    { 4, 8, 3, 3, 1, 3, 1, 17, 46, 17, "64-bit SDR SGRAM (1:1)" };
-static const struct aty128_meminfo sdr_sgram =
-    { 4, 4, 1, 2, 1, 2, 1, 16, 24, 16, "64-bit SDR SGRAM (2:1)" };
-static const struct aty128_meminfo ddr_sgram =
-    { 4, 4, 3, 3, 2, 3, 1, 16, 31, 16, "64-bit DDR SGRAM" };
-
-static const char *aty128fb_name = "ATY Rage128";
-static char fontname[40] __initdata = { 0 };
-
-static int  noaccel __initdata = 0;
-static char *font __initdata = NULL;
-static char *mode __initdata = NULL;
-static int  nomtrr __initdata = 0;
-
-static char *mode_option __initdata = NULL;
-
-#ifdef CONFIG_PPC
-static int default_vmode __initdata = VMODE_1024_768_60;
-static int default_cmode __initdata = CMODE_8;
-#endif
-
-#ifdef CONFIG_MTRR
-static int mtrr = 1;
-#endif
-
-/* PLL constants */
-struct aty128_constants {
-    u32 dotclock;
-    u32 ppll_min;
-    u32 ppll_max;
-    u32 ref_divider;
-    u32 xclk;
-    u32 fifo_width;
-    u32 fifo_depth;
-};
-
-struct aty128_crtc {
-    u32 gen_cntl;
-    u32 ext_cntl;
-    u32 h_total, h_sync_strt_wid;
-    u32 v_total, v_sync_strt_wid;
-    u32 pitch;
-    u32 offset, offset_cntl;
-    u32 xoffset, yoffset;
-    u32 vxres, vyres;
-    u32 bpp;
-};
-
-struct aty128_pll {
-    u32 post_divider;
-    u32 feedback_divider;
-    u32 vclk;
-};
-
-struct aty128_ddafifo {
-    u32 dda_config;
-    u32 dda_on_off;
-};
-
-/* register values for a specific mode */
-struct aty128fb_par {
-    struct aty128_crtc crtc;
-    struct aty128_pll pll;
-    struct aty128_ddafifo fifo_reg;
-    u32 accel_flags;
-};
-
-struct fb_info_aty128 {
-    struct fb_info fb_info;
-    struct fb_info_aty128 *next;
-    struct aty128_constants constants;  /* PLL and others      */
-    unsigned long regbase_phys;         /* physical mmio       */
-    void *regbase;                      /* remapped mmio       */
-    unsigned long frame_buffer_phys;    /* physical fb memory  */
-    void *frame_buffer;                 /* remaped framebuffer */
-    u32 vram_size;                      /* onboard video ram   */
-    int chip_gen;
-    const struct aty128_meminfo *mem;   /* onboard mem info    */
-    struct aty128fb_par default_par, current_par;
-    struct display disp;
-    struct { u8 red, green, blue, pad; } palette[256];
-    union {
-#ifdef FBCON_HAS_CFB16
-    u16 cfb16[16];
-#endif
-#ifdef FBCON_HAS_CFB24
-    u32 cfb24[16];
-#endif
-#ifdef FBCON_HAS_CFB32
-    u32 cfb32[16];
-#endif
-    } fbcon_cmap;
-#ifdef CONFIG_PCI
-    struct pci_dev *pdev;
-#endif
-#ifdef CONFIG_MTRR
-    struct { int vram; int vram_valid; } mtrr;
-#endif
-    int currcon;
-    int blitter_may_be_busy;
-    int fifo_slots;                 /* free slots in FIFO (64 max) */
-};
-
-static struct fb_info_aty128 *board_list = NULL;
-
-#define round_div(n, d) ((n+(d/2))/d)
-
-    /*
-     *  Interface used by the world
-     */
-
-int aty128fb_setup(char *options);
-
-static int aty128fb_get_fix(struct fb_fix_screeninfo *fix, int con,
-		       struct fb_info *info);
-static int aty128fb_get_var(struct fb_var_screeninfo *var, int con,
-		       struct fb_info *info);
-static int aty128fb_set_var(struct fb_var_screeninfo *var, int con,
-		       struct fb_info *info);
-static int aty128fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
-			struct fb_info *info);
-static int aty128fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
-			struct fb_info *info);
-static int aty128fb_pan_display(struct fb_var_screeninfo *var, int con,
-			   struct fb_info *fb);
-static int aty128fb_rasterimg(struct fb_info *info, int start);
-
-
-    /*
-     *  Interface to the low level console driver
-     */
-
-int aty128fb_init(void);
-static int aty128fbcon_switch(int con, struct fb_info *fb);
-static void aty128fbcon_blank(int blank, struct fb_info *fb);
-
-    /*
-     *  Internal routines
-     */
-
-static void aty128_encode_fix(struct fb_fix_screeninfo *fix,
-				struct aty128fb_par *par,
-				const struct fb_info_aty128 *info);
-static void aty128_set_dispsw(struct display *disp,
-			struct fb_info_aty128 *info, int bpp, int accel);
-static int aty128_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
-				u_int *transp, struct fb_info *info);
-static int aty128_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-				u_int transp, struct fb_info *info);
-static void do_install_cmap(int con, struct fb_info *info);
-static int aty128_encode_var(struct fb_var_screeninfo *var,
-                             const struct aty128fb_par *par,
-                             const struct fb_info_aty128 *info);
-static int aty128_decode_var(struct fb_var_screeninfo *var,
-                             struct aty128fb_par *par,
-                             const struct fb_info_aty128 *info);
-static int aty128_pci_register(struct pci_dev *pdev,
-                               const struct aty128_chip_info *aci);
-static struct fb_info_aty128 *aty128_board_list_add(struct fb_info_aty128
-				*board_list, struct fb_info_aty128 *new_node);
-#if !defined(CONFIG_PPC) && !defined(__sparc__)
-static void __init aty128_get_pllinfo(struct fb_info_aty128 *info,
-			char *bios_seg);
-static char __init *aty128find_ROM(struct fb_info_aty128 *info);
-#endif
-static void aty128_timings(struct fb_info_aty128 *info);
-static void aty128_init_engine(const struct aty128fb_par *par, 
-				struct fb_info_aty128 *info);
-static void aty128_reset_engine(const struct fb_info_aty128 *info);
-static void aty128_flush_pixel_cache(const struct fb_info_aty128 *info);
-static void do_wait_for_fifo(u16 entries, struct fb_info_aty128 *info);
-static void wait_for_fifo(u16 entries, struct fb_info_aty128 *info);
-static void wait_for_idle(struct fb_info_aty128 *info);
-static u32 bpp_to_depth(u32 bpp);
-
-#ifdef FBCON_HAS_CFB8
-static struct display_switch fbcon_aty128_8;
-static void fbcon_aty8_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx);
-static void fbcon_aty8_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx);
-#endif
-#ifdef FBCON_HAS_CFB16
-static struct display_switch fbcon_aty128_16;
-static void fbcon_aty16_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx);
-static void fbcon_aty16_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx);
-#endif
-#ifdef FBCON_HAS_CFB24
-static struct display_switch fbcon_aty128_24;
-static void fbcon_aty24_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx);
-static void fbcon_aty24_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx);
-#endif
-#ifdef FBCON_HAS_CFB32
-static struct display_switch fbcon_aty128_32;
-static void fbcon_aty32_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx);
-static void fbcon_aty32_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx);
-#endif
-
-static struct fb_ops aty128fb_ops = {
-	owner:		THIS_MODULE,
-	fb_get_fix:	aty128fb_get_fix,
-	fb_get_var:	aty128fb_get_var,
-	fb_set_var:	aty128fb_set_var,
-	fb_get_cmap:	aty128fb_get_cmap,
-	fb_set_cmap:	aty128fb_set_cmap,
-	fb_pan_display:	aty128fb_pan_display,
-	fb_rasterimg:	aty128fb_rasterimg,
-};
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-static int aty128_set_backlight_enable(int on, int level, void* data);
-static int aty128_set_backlight_level(int level, void* data);
-
-static struct backlight_controller aty128_backlight_controller = {
-	aty128_set_backlight_enable,
-	aty128_set_backlight_level
-};
-#endif /* CONFIG_PMAC_BACKLIGHT */
-
-    /*
-     * Functions to read from/write to the mmio registers
-     *	- endian conversions may possibly be avoided by
-     *    using the other register aperture. TODO.
-     */
-static inline u32
-_aty_ld_le32(volatile unsigned int regindex, 
-                              const struct fb_info_aty128 *info)
-{
-    u32 val;
-
-#if defined(__powerpc__)
-    asm("lwbrx %0,%1,%2;eieio" : "=r"(val) : "b"(regindex), "r"(info->regbase));
-#else
-    val = readl (info->regbase + regindex);
-#endif
-
-    return val;
-}
-
-static inline void
-_aty_st_le32(volatile unsigned int regindex, u32 val, 
-                               const struct fb_info_aty128 *info)
-{
-#if defined(__powerpc__)
-    asm("stwbrx %0,%1,%2;eieio" : : "r"(val), "b"(regindex),
-                "r"(info->regbase) : "memory");
-#else
-    writel (val, info->regbase + regindex);
-#endif
-}
-
-static inline u8
-_aty_ld_8(unsigned int regindex, const struct fb_info_aty128 *info)
-{
-    return readb (info->regbase + regindex);
-}
-
-static inline void
-_aty_st_8(unsigned int regindex, u8 val, const struct fb_info_aty128 *info)
-{
-    writeb (val, info->regbase + regindex);
-}
-
-#define aty_ld_le32(regindex)		_aty_ld_le32(regindex, info)
-#define aty_st_le32(regindex, val)	_aty_st_le32(regindex, val, info)
-#define aty_ld_8(regindex)		_aty_ld_8(regindex, info)
-#define aty_st_8(regindex, val)		_aty_st_8(regindex, val, info)
-
-    /*
-     * Functions to read from/write to the pll registers
-     */
-
-#define aty_ld_pll(pll_index)		_aty_ld_pll(pll_index, info)
-#define aty_st_pll(pll_index, val)	_aty_st_pll(pll_index, val, info)
-
-
-static u32
-_aty_ld_pll(unsigned int pll_index,
-			const struct fb_info_aty128 *info)
-{       
-    aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x1F);
-    return aty_ld_le32(CLOCK_CNTL_DATA);
-}
-
-    
-static void
-_aty_st_pll(unsigned int pll_index, u32 val,
-			const struct fb_info_aty128 *info)
-{
-    aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x1F) | PLL_WR_EN);
-    aty_st_le32(CLOCK_CNTL_DATA, val);
-}
-
-
-/* return true when the PLL has completed an atomic update */
-static int
-aty_pll_readupdate(const struct fb_info_aty128 *info)
-{
-    return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R);
-}
-
-
-static void
-aty_pll_wait_readupdate(const struct fb_info_aty128 *info)
-{
-    unsigned long timeout = jiffies + HZ/100;	// should be more than enough
-    int reset = 1;
-
-    while (time_before(jiffies, timeout))
-	if (aty_pll_readupdate(info)) {
-	    reset = 0;
-	    break;
-	}
-
-    if (reset)	/* reset engine?? */
-	printk(KERN_DEBUG "aty128fb: PLL write timeout!\n");
-}
-
-
-/* tell PLL to update */
-static void
-aty_pll_writeupdate(const struct fb_info_aty128 *info)
-{
-    aty_pll_wait_readupdate(info);
-
-    aty_st_pll(PPLL_REF_DIV,
-	aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W);
-}
-
-
-/* write to the scratch register to test r/w functionality */
-static int __init
-register_test(const struct fb_info_aty128 *info)
-{
-    u32 val;
-    int flag = 0;
-
-    val = aty_ld_le32(BIOS_0_SCRATCH);
-
-    aty_st_le32(BIOS_0_SCRATCH, 0x55555555);
-    if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) {
-	aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA);
-
-	if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA)
-	    flag = 1; 
-    }
-
-    aty_st_le32(BIOS_0_SCRATCH, val);	// restore value
-    return flag;
-}
-
-
-    /*
-     * Accelerator engine functions
-     */
-static void
-do_wait_for_fifo(u16 entries, struct fb_info_aty128 *info)
-{
-    int i;
-
-    for (;;) {
-        for (i = 0; i < 2000000; i++) {
-            info->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff;
-            if (info->fifo_slots >= entries)
-                return;
-        }
-	aty128_reset_engine(info);
-    }
-}
-
-
-static void
-wait_for_idle(struct fb_info_aty128 *info)
-{
-    int i;
-
-    do_wait_for_fifo(64, info);
-
-    for (;;) {
-        for (i = 0; i < 2000000; i++) {
-            if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) {
-                aty128_flush_pixel_cache(info);
-                info->blitter_may_be_busy = 0;
-                return;
-            }
-        }
-        aty128_reset_engine(info);
-    }
-}
-
-
-static void
-wait_for_fifo(u16 entries, struct fb_info_aty128 *info)
-{
-    if (info->fifo_slots < entries)
-        do_wait_for_fifo(64, info);
-    info->fifo_slots -= entries;
-}
-
-
-static void
-aty128_flush_pixel_cache(const struct fb_info_aty128 *info)
-{
-    int i;
-    u32 tmp;
-
-    tmp = aty_ld_le32(PC_NGUI_CTLSTAT);
-    tmp &= ~(0x00ff);
-    tmp |= 0x00ff;
-    aty_st_le32(PC_NGUI_CTLSTAT, tmp);
-
-    for (i = 0; i < 2000000; i++)
-        if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY))
-            break;
-}
-
-
-static void
-aty128_reset_engine(const struct fb_info_aty128 *info)
-{
-    u32 gen_reset_cntl, clock_cntl_index, mclk_cntl;
-
-    aty128_flush_pixel_cache(info);
-
-    clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX);
-    mclk_cntl = aty_ld_pll(MCLK_CNTL);
-
-    aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000);
-
-    gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL);
-    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI);
-    aty_ld_le32(GEN_RESET_CNTL);
-    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI));
-    aty_ld_le32(GEN_RESET_CNTL);
-
-    aty_st_pll(MCLK_CNTL, mclk_cntl);
-    aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index);
-    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl);
-
-    /* use old pio mode */
-    aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4);
-
-    DBG("engine reset");
-}
-
-
-static void
-aty128_init_engine(const struct aty128fb_par *par,
-		struct fb_info_aty128 *info)
-{
-    u32 pitch_value;
-
-    wait_for_idle(info);
-
-    /* 3D scaler not spoken here */
-    wait_for_fifo(1, info);
-    aty_st_le32(SCALE_3D_CNTL, 0x00000000);
-
-    aty128_reset_engine(info);
-
-    pitch_value = par->crtc.pitch;
-    if (par->crtc.bpp == 24) {
-        pitch_value = pitch_value * 3;
-    }
-
-    wait_for_fifo(4, info);
-    /* setup engine offset registers */
-    aty_st_le32(DEFAULT_OFFSET, 0x00000000);
-
-    /* setup engine pitch registers */
-    aty_st_le32(DEFAULT_PITCH, pitch_value);
-
-    /* set the default scissor register to max dimensions */
-    aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF);
-
-    /* set the drawing controls registers */
-    aty_st_le32(DP_GUI_MASTER_CNTL,
-		GMC_SRC_PITCH_OFFSET_DEFAULT		|
-		GMC_DST_PITCH_OFFSET_DEFAULT		|
-		GMC_SRC_CLIP_DEFAULT			|
-		GMC_DST_CLIP_DEFAULT			|
-		GMC_BRUSH_SOLIDCOLOR			|
-		(bpp_to_depth(par->crtc.bpp) << 8)	|
-		GMC_SRC_DSTCOLOR			|
-		GMC_BYTE_ORDER_MSB_TO_LSB		|
-		GMC_DP_CONVERSION_TEMP_6500		|
-		ROP3_PATCOPY				|
-		GMC_DP_SRC_RECT				|
-		GMC_3D_FCN_EN_CLR			|
-		GMC_DST_CLR_CMP_FCN_CLEAR		|
-		GMC_AUX_CLIP_CLEAR			|
-		GMC_WRITE_MASK_SET);
-
-    wait_for_fifo(8, info);
-    /* clear the line drawing registers */
-    aty_st_le32(DST_BRES_ERR, 0);
-    aty_st_le32(DST_BRES_INC, 0);
-    aty_st_le32(DST_BRES_DEC, 0);
-
-    /* set brush color registers */
-    aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */
-    aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */
-
-    /* set source color registers */
-    aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF);   /* white */
-    aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000);   /* black */
-
-    /* default write mask */
-    aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF);
-
-    /* Wait for all the writes to be completed before returning */
-    wait_for_idle(info);
-}
-
-
-/* convert bpp values to their register representation */
-static u32
-bpp_to_depth(u32 bpp)
-{
-    if (bpp <= 8)
-	return DST_8BPP;
-    else if (bpp <= 16)
-        return DST_15BPP;
-    else if (bpp <= 24)
-	return DST_24BPP;
-    else if (bpp <= 32)
-	return DST_32BPP;
-
-    return -EINVAL;
-}
-
-
-    /*
-     * CRTC programming
-     */
-
-/* Program the CRTC registers */
-static void
-aty128_set_crtc(const struct aty128_crtc *crtc,
-		const struct fb_info_aty128 *info)
-{
-    aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl);
-    aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total);
-    aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid);
-    aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total);
-    aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid);
-    aty_st_le32(CRTC_PITCH, crtc->pitch);
-    aty_st_le32(CRTC_OFFSET, crtc->offset);
-    aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl);
-    /* Disable ATOMIC updating.  Is this the right place?
-     * -- BenH: Breaks on my G4
-     */
-#if 0
-    aty_st_le32(PPLL_CNTL, aty_ld_le32(PPLL_CNTL) & ~(0x00030000));
-#endif
-}
-
-
-static int
-aty128_var_to_crtc(const struct fb_var_screeninfo *var,
-			struct aty128_crtc *crtc,
-			const struct fb_info_aty128 *info)
-{
-    u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp;
-    u32 left, right, upper, lower, hslen, vslen, sync, vmode;
-    u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol;
-    u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
-    u32 depth, bytpp;
-    u8 hsync_strt_pix[5] = { 0, 0x12, 9, 6, 5 };
-    u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 };
-
-    /* input */
-    xres = var->xres;
-    yres = var->yres;
-    vxres   = var->xres_virtual;
-    vyres   = var->yres_virtual;
-    xoffset = var->xoffset;
-    yoffset = var->yoffset;
-    bpp   = var->bits_per_pixel;
-    left  = var->left_margin;
-    right = var->right_margin;
-    upper = var->upper_margin;
-    lower = var->lower_margin;
-    hslen = var->hsync_len;
-    vslen = var->vsync_len;
-    sync  = var->sync;
-    vmode = var->vmode;
-
-    /* check for mode eligibility
-     * accept only non interlaced modes */
-    if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
-	return -EINVAL;
-
-    /* convert (and round up) and validate */
-    xres = (xres + 7) & ~7;
-    xoffset = (xoffset + 7) & ~7;
-
-    if (vxres < xres + xoffset)
-	vxres = xres + xoffset;
-
-    if (vyres < yres + yoffset)
-	vyres = yres + yoffset;
-
-    /* convert bpp into ATI register depth */
-    depth = bpp_to_depth(bpp);
-
-    /* make sure we didn't get an invalid depth */
-    if (depth == -EINVAL) {
-        printk(KERN_ERR "aty128fb: Invalid depth\n");
-        return -EINVAL;
-    }
-
-    /* convert depth to bpp */
-    bytpp = mode_bytpp[depth];
-
-    /* make sure there is enough video ram for the mode */
-    if ((u32)(vxres * vyres * bytpp) > info->vram_size) {
-        printk(KERN_ERR "aty128fb: Not enough memory for mode\n");
-        return -EINVAL;
-    }
-
-    h_disp = (xres >> 3) - 1;
-    h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL;
-
-    v_disp = yres - 1;
-    v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL;
-
-    /* check to make sure h_total and v_total are in range */
-    if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) {
-        printk(KERN_ERR "aty128fb: invalid width ranges\n");
-        return -EINVAL;
-    }
-
-    h_sync_wid = (hslen + 7) >> 3;
-    if (h_sync_wid == 0)
-	h_sync_wid = 1;
-    else if (h_sync_wid > 0x3f)        /* 0x3f = max hwidth */
-	h_sync_wid = 0x3f;
-
-    h_sync_strt = h_disp + (right >> 3);
-
-    v_sync_wid = vslen;
-    if (v_sync_wid == 0)
-	v_sync_wid = 1;
-    else if (v_sync_wid > 0x1f)        /* 0x1f = max vwidth */
-	v_sync_wid = 0x1f;
-    
-    v_sync_strt = v_disp + lower;
-
-    h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
-    v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
-    
-    c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
-
-    crtc->gen_cntl = 0x3000000L | c_sync | (depth << 8);
-
-    crtc->h_total = h_total | (h_disp << 16);
-    crtc->v_total = v_total | (v_disp << 16);
-
-    crtc->h_sync_strt_wid = hsync_strt_pix[bytpp] | (h_sync_strt << 3) |
-                (h_sync_wid << 16) | (h_sync_pol << 23);
-    crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) |
-                (v_sync_pol << 23);
-
-    crtc->pitch = vxres >> 3;
-
-    crtc->offset = 0;
-
-    if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
- 	 crtc->offset_cntl = 0x00010000;
-    else
-	 crtc->offset_cntl = 0;
-
-    crtc->vxres = vxres;
-    crtc->vyres = vyres;
-    crtc->xoffset = xoffset;
-    crtc->yoffset = yoffset;
-    crtc->bpp = bpp;
-
-    return 0;
-}
-
-
-static int
-aty128_bpp_to_var(int pix_width, struct fb_var_screeninfo *var)
-{
-
-    /* fill in pixel info */
-    switch (pix_width) {
-    case CRTC_PIX_WIDTH_8BPP:
-        var->bits_per_pixel = 8;
-	var->red.offset = 0;
-	var->red.length = 8;
-	var->green.offset = 0;
-	var->green.length = 8;
-	var->blue.offset = 0;
-	var->blue.length = 8;
-	var->transp.offset = 0;
-	var->transp.length = 0;
-	break;
-    case CRTC_PIX_WIDTH_15BPP:
-    case CRTC_PIX_WIDTH_16BPP:
-	var->bits_per_pixel = 16;
-	var->red.offset = 10;
-	var->red.length = 5;
-	var->green.offset = 5;
-	var->green.length = 5;
-	var->blue.offset = 0;
-	var->blue.length = 5;
-	var->transp.offset = 0;
-	var->transp.length = 0;
-	break;
-    case CRTC_PIX_WIDTH_24BPP:
-        var->bits_per_pixel = 24;
-        var->red.offset = 16;
-        var->red.length = 8;
-        var->green.offset = 8;
-        var->green.length = 8;
-        var->blue.offset = 0;
-        var->blue.length = 8;
-        var->transp.offset = 0;
-        var->transp.length = 0;
-        break;
-    case CRTC_PIX_WIDTH_32BPP:
-        var->bits_per_pixel = 32;
-	var->red.offset = 16;
-	var->red.length = 8;
-	var->green.offset = 8;
-	var->green.length = 8;
-	var->blue.offset = 0;
-	var->blue.length = 8;
-	var->transp.offset = 24;
-	var->transp.length = 8;
-	break;
-    default:
-        printk(KERN_ERR "aty128fb: Invalid pixel width\n");
-        return -EINVAL;
-    }
-
-    return 0;
-}
-
-
-static int
-aty128_crtc_to_var(const struct aty128_crtc *crtc,
-			struct fb_var_screeninfo *var)
-{
-    u32 xres, yres, left, right, upper, lower, hslen, vslen, sync;
-    u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol;
-    u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
-    u32 pix_width;
-
-    /* fun with masking */
-    h_total     = crtc->h_total & 0x1ff;
-    h_disp      = (crtc->h_total >> 16) & 0xff;
-    h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff;
-    h_sync_dly  = crtc->h_sync_strt_wid & 0x7;
-    h_sync_wid  = (crtc->h_sync_strt_wid >> 16) & 0x3f;
-    h_sync_pol  = (crtc->h_sync_strt_wid >> 23) & 0x1;
-    v_total     = crtc->v_total & 0x7ff;
-    v_disp      = (crtc->v_total >> 16) & 0x7ff;
-    v_sync_strt = crtc->v_sync_strt_wid & 0x7ff;
-    v_sync_wid  = (crtc->v_sync_strt_wid >> 16) & 0x1f;
-    v_sync_pol  = (crtc->v_sync_strt_wid >> 23) & 0x1;
-    c_sync      = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0;
-    pix_width   = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK;
-
-    /* do conversions */
-    xres  = (h_disp + 1) << 3;
-    yres  = v_disp + 1;
-    left  = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly;
-    right = ((h_sync_strt - h_disp) << 3) + h_sync_dly;
-    hslen = h_sync_wid << 3;
-    upper = v_total - v_sync_strt - v_sync_wid;
-    lower = v_sync_strt - v_disp;
-    vslen = v_sync_wid;
-    sync  = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) |
-            (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) |
-            (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0);
-
-    aty128_bpp_to_var(pix_width, var);
-
-    var->xres = xres;
-    var->yres = yres;
-    var->xres_virtual = crtc->vxres;
-    var->yres_virtual = crtc->vyres;
-    var->xoffset = crtc->xoffset;
-    var->yoffset = crtc->yoffset;
-    var->left_margin  = left;
-    var->right_margin = right;
-    var->upper_margin = upper;
-    var->lower_margin = lower;
-    var->hsync_len = hslen;
-    var->vsync_len = vslen;
-    var->sync  = sync;
-    var->vmode = FB_VMODE_NONINTERLACED;
-
-    return 0;
-}
-
-static void
-aty128_set_pll(struct aty128_pll *pll, const struct fb_info_aty128 *info)
-{
-    u32 div3;
-
-    unsigned char post_conv[] =	/* register values for post dividers */
-        { 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 };
-
-    /* select PPLL_DIV_3 */
-    aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8));
-
-    /* reset PLL */
-    aty_st_pll(PPLL_CNTL,
-		aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN);
-
-    /* write the reference divider */
-    aty_pll_wait_readupdate(info);
-    aty_st_pll(PPLL_REF_DIV, info->constants.ref_divider & 0x3ff);
-    aty_pll_writeupdate(info);
-
-    div3 = aty_ld_pll(PPLL_DIV_3);
-    div3 &= ~PPLL_FB3_DIV_MASK;
-    div3 |= pll->feedback_divider;
-    div3 &= ~PPLL_POST3_DIV_MASK;
-    div3 |= post_conv[pll->post_divider] << 16;
-
-    /* write feedback and post dividers */
-    aty_pll_wait_readupdate(info);
-    aty_st_pll(PPLL_DIV_3, div3);
-    aty_pll_writeupdate(info);
-
-    aty_pll_wait_readupdate(info);
-    aty_st_pll(HTOTAL_CNTL, 0);	/* no horiz crtc adjustment */
-    aty_pll_writeupdate(info);
-
-    /* clear the reset, just in case */
-    aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET);
-}
-
-
-static int
-aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll,
-			const struct fb_info_aty128 *info)
-{
-    const struct aty128_constants c = info->constants;
-    unsigned char post_dividers[] = {1,2,4,8,3,6,12};
-    u32 output_freq;
-    u32 vclk;        /* in .01 MHz */
-    int i;
-    u32 n, d;
-
-    vclk = 100000000 / period_in_ps;	/* convert units to 10 kHz */
-
-    /* adjust pixel clock if necessary */
-    if (vclk > c.ppll_max)
-	vclk = c.ppll_max;
-    if (vclk * 12 < c.ppll_min)
-	vclk = c.ppll_min/12;
-
-    /* now, find an acceptable divider */
-    for (i = 0; i < sizeof(post_dividers); i++) {
-	output_freq = post_dividers[i] * vclk;
-	if (output_freq >= c.ppll_min && output_freq <= c.ppll_max)
-	    break;
-    }
-
-    /* calculate feedback divider */
-    n = c.ref_divider * output_freq;
-    d = c.dotclock;
-
-    pll->post_divider = post_dividers[i];
-    pll->feedback_divider = round_div(n, d);
-    pll->vclk = vclk;
-
-    DBG("post %d feedback %d vlck %d output %d ref_divider %d "
-			"vclk_per: %d\n", pll->post_divider,
-			pll->feedback_divider, vclk, output_freq,
-			c.ref_divider, period_in_ps);
-
-    return 0;
-}
-
-
-static int
-aty128_pll_to_var(const struct aty128_pll *pll, struct fb_var_screeninfo *var,
-		const struct fb_info_aty128 *info)
-{
-    var->pixclock = 100000000 / pll->vclk;
-
-    return 0;
-}
-
-
-static void
-aty128_set_fifo(const struct aty128_ddafifo *dsp,
-			const struct fb_info_aty128 *info)
-{
-    aty_st_le32(DDA_CONFIG, dsp->dda_config);
-    aty_st_le32(DDA_ON_OFF, dsp->dda_on_off);
-}
-
-
-static int
-aty128_ddafifo(struct aty128_ddafifo *dsp,
-		const struct aty128_pll *pll,
-		u32 bpp,
-		const struct fb_info_aty128 *info)
-{
-    const struct aty128_meminfo *m = info->mem;
-    u32 xclk = info->constants.xclk;
-    u32 fifo_width = info->constants.fifo_width;
-    u32 fifo_depth = info->constants.fifo_depth;
-    s32 x, b, p, ron, roff;
-    u32 n, d;
-
-    /* 15bpp is really 16bpp */
-    if (bpp == 15)
-	bpp = 16;
-
-    n = xclk * fifo_width;
-    d = pll->vclk * bpp;
-    x = round_div(n, d);
-
-    ron = 4 * m->MB +
-	3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) +
-	2 * m->Trp +
-	m->Twr +
-	m->CL +
-	m->Tr2w +
-	x;
-
-    DBG("x %x\n", x);
-
-    b = 0;
-    while (x) {
-	x >>= 1;
-	b++;
-    }
-    p = b + 1;
-
-    ron <<= (11 - p);
-
-    n <<= (11 - p);
-    x = round_div(n, d);
-    roff = x * (fifo_depth - 4);
-
-    if ((ron + m->Rloop) >= roff) {
-	printk(KERN_ERR "aty128fb: Mode out of range!\n");
-	return -EINVAL;
-    }
-
-    DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n",
-			p, m->Rloop, x, ron, roff);
-
-    dsp->dda_config = p << 16 | m->Rloop << 20 | x;
-    dsp->dda_on_off = ron << 16 | roff;
-
-    return 0;
-}
-
-
-/*
- * This actually sets the video mode.
- */
-static void
-aty128_set_par(struct aty128fb_par *par,
-			struct fb_info_aty128 *info)
-{ 
-    u32 config;
-
-    info->current_par = *par;
-    
-    if (info->blitter_may_be_busy)
-        wait_for_idle(info);
-
-    /* clear all registers that may interfere with mode setting */
-    aty_st_le32(OVR_CLR, 0);
-    aty_st_le32(OVR_WID_LEFT_RIGHT, 0);
-    aty_st_le32(OVR_WID_TOP_BOTTOM, 0);
-    aty_st_le32(OV0_SCALE_CNTL, 0);
-    aty_st_le32(MPP_TB_CONFIG, 0);
-    aty_st_le32(MPP_GP_CONFIG, 0);
-    aty_st_le32(SUBPIC_CNTL, 0);
-    aty_st_le32(VIPH_CONTROL, 0);
-    aty_st_le32(I2C_CNTL_1, 0);         /* turn off i2c */
-    aty_st_le32(GEN_INT_CNTL, 0);	/* turn off interrupts */
-    aty_st_le32(CAP0_TRIG_CNTL, 0);
-    aty_st_le32(CAP1_TRIG_CNTL, 0);
-
-    aty_st_8(CRTC_EXT_CNTL + 1, 4);	/* turn video off */
-
-    aty128_set_crtc(&par->crtc, info);
-    aty128_set_pll(&par->pll, info);
-    aty128_set_fifo(&par->fifo_reg, info);
-
-    config = aty_ld_le32(CONFIG_CNTL) & ~3;
-
-#if defined(__BIG_ENDIAN)
-    if (par->crtc.bpp >= 24)
-	config |= 2;	/* make aperture do 32 byte swapping */
-    else if (par->crtc.bpp > 8)
-	config |= 1;	/* make aperture do 16 byte swapping */
-#endif
-
-    aty_st_le32(CONFIG_CNTL, config);
-    aty_st_8(CRTC_EXT_CNTL + 1, 0);	/* turn the video back on */
-
-    if (par->accel_flags & FB_ACCELF_TEXT)
-        aty128_init_engine(par, info);
-
-#ifdef CONFIG_FB_COMPAT_XPMAC
-    if (!console_fb_info || console_fb_info == &info->fb_info) {
-        struct fb_var_screeninfo var;
-        int cmode, vmode;
-
-	display_info.height = ((par->crtc.v_total >> 16) & 0x7ff) + 1;
-	display_info.width = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3;
-	display_info.depth = par->crtc.bpp;
-	display_info.pitch = (par->crtc.vxres * par->crtc.bpp) >> 3;
-        aty128_encode_var(&var, par, info);
-	if (mac_var_to_vmode(&var, &vmode, &cmode))
-	    display_info.mode = 0;
-	else
-	    display_info.mode = vmode;
-	strcpy(display_info.name, aty128fb_name);
-	display_info.fb_address = info->frame_buffer_phys;
-	display_info.cmap_adr_address = 0;
-	display_info.cmap_data_address = 0;
-	display_info.disp_reg_address = info->regbase_phys;
-    }
-#endif /* CONFIG_FB_COMPAT_XPMAC */
-}
-
-    /*
-     *  encode/decode the User Defined Part of the Display
-     */
-
-static int
-aty128_decode_var(struct fb_var_screeninfo *var, struct aty128fb_par *par,
-			const struct fb_info_aty128 *info)
-{
-    int err;
-
-    if ((err = aty128_var_to_crtc(var, &par->crtc, info)))
-	return err;
-
-    if ((err = aty128_var_to_pll(var->pixclock, &par->pll, info)))
-	return err;
-
-    if ((err = aty128_ddafifo(&par->fifo_reg, &par->pll, par->crtc.bpp, info)))
-	return err;
-
-    if (var->accel_flags & FB_ACCELF_TEXT)
-	par->accel_flags = FB_ACCELF_TEXT;
-    else
-	par->accel_flags = 0;
-
-    return 0;
-}
-
-
-static int
-aty128_encode_var(struct fb_var_screeninfo *var,
-			const struct aty128fb_par *par,
-			const struct fb_info_aty128 *info)
-{
-    int err;
-
-    if ((err = aty128_crtc_to_var(&par->crtc, var)))
-	return err;
-
-    if ((err = aty128_pll_to_var(&par->pll, var, info)))
-	return err;
-
-    var->red.msb_right = 0;
-    var->green.msb_right = 0;
-    var->blue.msb_right = 0;
-    var->transp.msb_right = 0;
-
-    var->nonstd = 0;
-    var->activate = 0;
-
-    var->height = -1;
-    var->width = -1;
-    var->accel_flags = par->accel_flags;
-
-    return 0;
-}           
-
-
-    /*
-     *  Get the User Defined Part of the Display
-     */
-
-static int
-aty128fb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *fb)
-{
-    const struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-
-    if (con == -1)
-	aty128_encode_var(var, &info->default_par, info); 
-    else
-	*var = fb_display[con].var;
-    return 0;
-}
-
-
-    /*
-     *  Set the User Defined Part of the Display
-     */
-
-static int
-aty128fb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    struct aty128fb_par par;
-    struct display *display;
-    int oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldaccel;
-    int accel, err;
-
-    display = (con >= 0) ? &fb_display[con] : fb->disp;
-
-    /* basic (in)sanity checks */
-    if (!var->xres)
-        var->xres = 1;
-    if (!var->yres)
-        var->yres = 1;
-    if (var->xres > var->xres_virtual)
-        var->xres_virtual = var->xres;
-    if (var->yres > var->yres_virtual)
-        var->yres_virtual = var->yres;
-
-    switch (var->bits_per_pixel) {
-        case 0 ... 8:
-            var->bits_per_pixel = 8;
-            break;
-        case 9 ... 16:
-            var->bits_per_pixel = 16;
-            break;
-        case 17 ... 24:
-            var->bits_per_pixel = 24;
-            break;
-        case 25 ... 32:
-            var->bits_per_pixel = 32;
-            break;
-        default:
-            return -EINVAL;
-    }
-
-    if ((err = aty128_decode_var(var, &par, info)))
-	return err;
-
-    aty128_encode_var(var, &par, info);
-
-    if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
-	return 0;
-
-    oldxres = display->var.xres;
-    oldyres = display->var.yres;
-    oldvxres = display->var.xres_virtual;
-    oldvyres = display->var.yres_virtual;
-    oldbpp = display->var.bits_per_pixel;
-    oldaccel = display->var.accel_flags;
-    display->var = *var;
-    if (oldxres != var->xres || oldyres != var->yres ||
-	oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||
-	oldbpp != var->bits_per_pixel || oldaccel != var->accel_flags) {
-
-	struct fb_fix_screeninfo fix;
-
-	aty128_encode_fix(&fix, &par, info);
-        display->screen_base = info->frame_buffer;
-	display->visual = fix.visual;
-	display->type = fix.type;
-	display->type_aux = fix.type_aux;
-	display->ypanstep = fix.ypanstep;
-	display->ywrapstep = fix.ywrapstep;
-	display->line_length = fix.line_length;
-	display->can_soft_blank = 1;
-	display->inverse = 0;
-
-	accel = var->accel_flags & FB_ACCELF_TEXT;
-        aty128_set_dispsw(display, info, par.crtc.bpp, accel);
-
-	if (accel)
-	    display->scrollmode = SCROLL_YNOMOVE;
-	else
-	    display->scrollmode = SCROLL_YREDRAW;
-
-	if (info->fb_info.changevar)
-	    (*info->fb_info.changevar)(con);
-    }
-
-    if (!info->fb_info.display_fg || info->fb_info.display_fg->vc_num == con)
-	aty128_set_par(&par, info);
-
-    if (oldbpp != var->bits_per_pixel) {
-	if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
-	    return err;
-	do_install_cmap(con, &info->fb_info);
-    } 
-
-    return 0;
-}
-
-
-static void
-aty128_set_dispsw(struct display *disp,
-			struct fb_info_aty128 *info, int bpp, int accel)
-{
-    switch (bpp) {
-#ifdef FBCON_HAS_CFB8
-    case 8:
-	disp->dispsw = accel ? &fbcon_aty128_8 : &fbcon_cfb8;
-	break;
-#endif
-#ifdef FBCON_HAS_CFB16
-    case 15:
-    case 16:
-	disp->dispsw = accel ? &fbcon_aty128_16 : &fbcon_cfb16;
-	disp->dispsw_data = info->fbcon_cmap.cfb16;
-	break;
-#endif
-#ifdef FBCON_HAS_CFB24
-    case 24:
-	disp->dispsw = accel ? &fbcon_aty128_24 : &fbcon_cfb24;
-	disp->dispsw_data = info->fbcon_cmap.cfb24;
-	break;
-#endif
-#ifdef FBCON_HAS_CFB32
-    case 32:
-	disp->dispsw = accel ? &fbcon_aty128_32 : &fbcon_cfb32;
-	disp->dispsw_data = info->fbcon_cmap.cfb32;
-	break;
-#endif
-    default:
-	disp->dispsw = &fbcon_dummy;
-    }
-}
-
-
-static void
-aty128_encode_fix(struct fb_fix_screeninfo *fix,
-			struct aty128fb_par *par,
-			const struct fb_info_aty128 *info)
-{
-    memset(fix, 0, sizeof(struct fb_fix_screeninfo));
-    
-    strcpy(fix->id, aty128fb_name);
-
-    fix->smem_start = (unsigned long)info->frame_buffer_phys;
-    fix->mmio_start = (unsigned long)info->regbase_phys;
-
-    fix->smem_len = info->vram_size;
-    fix->mmio_len = 0x1fff;
-
-    fix->type        = FB_TYPE_PACKED_PIXELS;
-    fix->type_aux    = 0;
-    fix->line_length = (par->crtc.vxres * par->crtc.bpp) >> 3;
-    fix->visual      = par->crtc.bpp <= 8 ? FB_VISUAL_PSEUDOCOLOR
-                                          : FB_VISUAL_DIRECTCOLOR;
-    fix->ywrapstep = 0;
-    fix->xpanstep  = 8;
-    fix->ypanstep  = 1;
-
-    fix->accel = FB_ACCEL_ATI_RAGE128;
-
-    return;
-}
-
-
-    /*
-     *  Get the Fixed Part of the Display
-     */
-static int
-aty128fb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *fb)
-{
-    const struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    struct aty128fb_par par;
-
-    if (con == -1)
-	par = info->default_par;
-    else
-	aty128_decode_var(&fb_display[con].var, &par, info); 
-
-    aty128_encode_fix(fix, &par, info);
-
-    return 0;            
-}
-
-
-    /*
-     *  Pan or Wrap the Display
-     *
-     *  Not supported (yet!)
-     */
-static int
-aty128fb_pan_display(struct fb_var_screeninfo *var, int con,
-			   struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    struct aty128fb_par *par = &info->current_par;
-    u32 xoffset, yoffset;
-    u32 offset;
-    u32 xres, yres;
-
-    xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3;
-    yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1;
-
-    xoffset = (var->xoffset +7) & ~7;
-    yoffset = var->yoffset;
-
-    if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres)
-        return -EINVAL;
-
-    par->crtc.xoffset = xoffset;
-    par->crtc.yoffset = yoffset;
-
-    offset = ((yoffset * par->crtc.vxres + xoffset) * par->crtc.bpp) >> 6;
-
-    aty_st_le32(CRTC_OFFSET, offset);
-
-    return 0;
-}
-
-
-    /*
-     *  Get the Colormap
-     */
-
-static int
-aty128fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
-			struct fb_info *info)
-{
-#if 1
-    fb_copy_cmap(&info->cmap, cmap, kspc ? 0 : 2);
-#else
-    struct fb_info_aty128 fb = (struct fb_info_aty128 *)info;
-
-    if (con == fb->currcon) /* current console? */
-	return fb_get_cmap(cmap, kspc, aty128_getcolreg, info);
-    else if (fb_display[con].cmap.len) /* non default colormap? */
-	fb_copy_cmap(&fb_display[con].cmap, cmap, kspc ? 0 : 2);
-    else {  
-	int size = (fb_display[con].var.bits_per_pixel <= 8) ? 256 : 32;
-	fb_copy_cmap(fb_default_cmap(size), cmap, kspc ? 0 : 2);
-    }
-#endif
-
-    return 0;
-}
-
-    /*
-     *  Set the Colormap
-     */
-
-static int
-aty128fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
-			struct fb_info *info)
-{
-    int err;
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
-    struct display *disp;  
-
-    if (con >= 0)
-	disp = &fb_display[con];
-    else
-	disp = info->disp;
-
-    if (!disp->cmap.len) {      /* no colormap allocated? */
-        int size = (disp->var.bits_per_pixel <= 8) ? 256 : 32;
-	if ((err = fb_alloc_cmap(&disp->cmap, size, 0)))
-	    return err;
-    }
-
-    if (con == fb->currcon) /* current console? */
-	return fb_set_cmap(cmap, kspc, aty128_setcolreg, info);
-    else
-	fb_copy_cmap(cmap, &disp->cmap, kspc ? 0 : 1);
-
-    return 0;                
-}
-
-
-static int
-aty128fb_rasterimg(struct fb_info *info, int start)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    return 0;
-}
-
-
-int __init
-aty128fb_setup(char *options)
-{
-    char *this_opt;
-
-    if (!options || !*options)
-	return 0;
-
-    while (this_opt = strsep(&options, ",")) {
-	if (!strncmp(this_opt, "font:", 5)) {
-	    char *p;
-	    int i;
-	    
-	    p = this_opt +5;
-	    for (i = 0; i < sizeof(fontname) - 1; i++)
-		if (!*p || *p == ' ' || *p == ',')
-		    break;
-	    memcpy(fontname, this_opt + 5, i);
-	    fontname[i] = 0;
-	} else if (!strncmp(this_opt, "noaccel", 7)) {
-	    noaccel = 1;
-        }
-#ifdef CONFIG_MTRR
-        else if(!strncmp(this_opt, "nomtrr", 6)) {
-            mtrr = 0;
-        }
-#endif
-#ifdef CONFIG_PPC
-        /* vmode and cmode depreciated */
-	else if (!strncmp(this_opt, "vmode:", 6)) {
-            unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
-            if (vmode > 0 && vmode <= VMODE_MAX)
-                default_vmode = vmode;
-        } else if (!strncmp(this_opt, "cmode:", 6)) {
-            unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
-            switch (cmode) {
-	    case 0:
-	    case 8:
-		default_cmode = CMODE_8;
-		break;
-	    case 15:
-	    case 16:
-		default_cmode = CMODE_16;
-		break;
-	    case 24:
-	    case 32:
-		default_cmode = CMODE_32;
-		break;
-            }
-        }
-#endif /* CONFIG_PPC */
-        else
-            mode_option = this_opt;
-    }
-    return 0;
-}
-
-
-    /*
-     *  Initialisation
-     */
-
-static int __init
-aty128_init(struct fb_info_aty128 *info, const char *name)
-{
-    struct fb_var_screeninfo var;
-    u32 dac;
-    int j, k;
-    u8 chip_rev;
-    const struct aty128_chip_info *aci = &aty128_pci_probe_list[0];
-    char *video_card = "Rage128";
-
-    if (!info->vram_size)	/* may have already been probed */
-	info->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
-
-    /* Get the chip revision */
-    chip_rev = (aty_ld_le32(CONFIG_CNTL) >> 16) & 0x1F;
-
-    /* put a name with the face */
-    while (aci->name && info->pdev->device != aci->device) { aci++; }
-    video_card = (char *)aci->name;
-    info->chip_gen = aci->chip_gen;
-
-    printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev);
-
-    if (info->vram_size % (1024 * 1024) == 0)
-	printk("%dM %s\n", info->vram_size / (1024*1024), info->mem->name);
-    else
-	printk("%dk %s\n", info->vram_size / 1024, info->mem->name);
-
-    /* fill in info */
-    strcpy(info->fb_info.modename, aty128fb_name);
-    info->fb_info.node  = -1;
-    info->fb_info.fbops = &aty128fb_ops;
-    info->fb_info.disp  = &info->disp;
-    strcpy(info->fb_info.fontname, fontname);
-    info->fb_info.changevar  = NULL;
-    info->fb_info.switch_con = &aty128fbcon_switch;
-    info->fb_info.updatevar  = NULL;
-    info->fb_info.blank = &aty128fbcon_blank;
-    info->fb_info.flags = FBINFO_FLAG_DEFAULT;
-
-    var = default_var;
-#ifdef CONFIG_PPC
-    if (_machine == _MACH_Pmac) {
-        if (mode_option) {
-            if (!mac_find_mode(&var, &info->fb_info, mode_option, 8))
-                var = default_var;
-        } else {
-            if (default_vmode <= 0 || default_vmode > VMODE_MAX)
-                default_vmode = VMODE_1024_768_60;
-
-            if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
-                default_cmode = CMODE_8;
-
-            if (mac_vmode_to_var(default_vmode, default_cmode, &var))
-                var = default_var;
-        }
-    } else
-#endif /* CONFIG_PPC */
-    {
-        if (fb_find_mode(&var, &info->fb_info, mode_option, NULL, 0,
-                          &defaultmode, 8) == 0)
-            var = default_var;
-    }
-
-    if (noaccel)
-        var.accel_flags &= ~FB_ACCELF_TEXT;
-    else
-        var.accel_flags |= FB_ACCELF_TEXT;
-
-    if (aty128_decode_var(&var, &info->default_par, info)) {
-	printk(KERN_ERR "aty128fb: Cannot set default mode.\n");
-	return 0;
-    }
-
-    /* load up the palette with default colors */
-    for (j = 0; j < 16; j++) {
-        k = color_table[j];
-        info->palette[j].red = default_red[k];
-        info->palette[j].green = default_grn[k];
-        info->palette[j].blue = default_blu[k];
-    }
-
-    /* setup the DAC the way we like it */
-    dac = aty_ld_le32(DAC_CNTL);
-    dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL);
-    dac |= DAC_MASK;
-    aty_st_le32(DAC_CNTL, dac);
-
-    /* turn off bus mastering, just in case */
-    aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS);
-
-    aty128fb_set_var(&var, -1, &info->fb_info);
-    aty128_init_engine(&info->default_par, info);
-
-    board_list = aty128_board_list_add(board_list, info);
-
-    if (register_framebuffer(&info->fb_info) < 0)
-	return 0;
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-    /* Could be extended to Rage128Pro LVDS output too */
-    if (info->chip_gen == rage_M3)
-    	register_backlight_controller(&aty128_backlight_controller, info, "ati");
-#endif /* CONFIG_PMAC_BACKLIGHT */
-
-    printk(KERN_INFO "fb%d: %s frame buffer device on %s\n",
-	   GET_FB_IDX(info->fb_info.node), aty128fb_name, name);
-
-    return 1;	/* success! */
-}
-
-
-/* add a new card to the list  ++ajoshi */
-static struct
-fb_info_aty128 *aty128_board_list_add(struct fb_info_aty128 *board_list,
-                                       struct fb_info_aty128 *new_node)
-{
-    struct fb_info_aty128 *i_p = board_list;
-
-    new_node->next = NULL;
-    if(board_list == NULL)
-	return new_node;
-    while(i_p->next != NULL)
-	i_p = i_p->next;
-    i_p->next = new_node;
-
-    return board_list;
-}
-
-
-int __init
-aty128fb_init(void)
-{
-#ifdef CONFIG_PCI
-    struct pci_dev *pdev = NULL;
-    const struct aty128_chip_info *aci = &aty128_pci_probe_list[0];
-
-    while (aci->name != NULL) {
-        pdev = pci_find_device(PCI_VENDOR_ID_ATI, aci->device, pdev);
-        while (pdev != NULL) {
-            if (aty128_pci_register(pdev, aci) == 0)
-                return 0;
-            pdev = pci_find_device(PCI_VENDOR_ID_ATI, aci->device, pdev);
-        }
-	aci++;
-    }
-#endif
-
-    return 0;
-}
-
-
-#ifdef CONFIG_PCI
-/* register a card    ++ajoshi */
-static int __init
-aty128_pci_register(struct pci_dev *pdev,
-                               const struct aty128_chip_info *aci)
-{
-	struct fb_info_aty128 *info = NULL;
-	unsigned long fb_addr, reg_addr;
-	int err;
-#if !defined(CONFIG_PPC) && !defined(__sparc__)
-	char *bios_seg = NULL;
-#endif
-
-	/* Enable device in PCI config */
-	if ((err = pci_enable_device(pdev))) {
-		printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n",
-				err);
-		goto err_out;
-	}
-
-	fb_addr = pci_resource_start(pdev, 0);
-	if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0),
-				"aty128fb FB")) {
-		printk(KERN_ERR "aty128fb: cannot reserve frame "
-				"buffer memory\n");
-		goto err_free_fb;
-	}
-
-	reg_addr = pci_resource_start(pdev, 2);
-	if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2),
-				"aty128fb MMIO")) {
-		printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n");
-		goto err_free_mmio;
-	}
-
-	/* We have the resources. Now virtualize them */
-	if (!(info = kmalloc(sizeof(struct fb_info_aty128), GFP_ATOMIC))) {
-		printk(KERN_ERR "aty128fb: can't alloc fb_info_aty128\n");
-		goto err_unmap_out;
-	}
-	memset(info, 0, sizeof(struct fb_info_aty128));
-
-	/* Copy PCI device info into info->pdev */
-	info->pdev = pdev;
-
-	info->currcon = -1;
-
-	/* Virtualize mmio region */
-	info->regbase_phys = reg_addr;
-	info->regbase = ioremap(reg_addr, 0x1FFF);
-
-	if (!info->regbase)
-		goto err_free_info;
-
-	/* Grab memory size from the card */
-	info->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
-
-	/* Virtualize the framebuffer */
-	info->frame_buffer_phys = fb_addr;
-	info->frame_buffer = ioremap(fb_addr, info->vram_size);
-
-	if (!info->frame_buffer) {
-		iounmap((void *)info->regbase);
-		goto err_free_info;
-	}
-
-	/* If we can't test scratch registers, something is seriously wrong */
-	if (!register_test(info)) {
-		printk(KERN_ERR "aty128fb: Can't write to video register!\n");
-		goto err_out;
-	}
-
-#if !defined(CONFIG_PPC) && !defined(__sparc__)
-	if (!(bios_seg = aty128find_ROM(info)))
-		printk(KERN_INFO "aty128fb: Rage128 BIOS not located. "
-					"Guessing...\n");
-	else {
-		printk(KERN_INFO "aty128fb: Rage128 BIOS located at "
-				"segment %4.4X\n", (unsigned int)bios_seg);
-		aty128_get_pllinfo(info, bios_seg);
-	}
-#endif
-	aty128_timings(info);
-
-	if (!aty128_init(info, "PCI"))
-		goto err_out;
-
-#ifdef CONFIG_MTRR
-	if (mtrr) {
-		info->mtrr.vram = mtrr_add(info->frame_buffer_phys,
-				info->vram_size, MTRR_TYPE_WRCOMB, 1);
-		info->mtrr.vram_valid = 1;
-		/* let there be speed */
-		printk(KERN_INFO "aty128fb: Rage128 MTRR set to ON\n");
-	}
-#endif /* CONFIG_MTRR */
-
-#ifdef CONFIG_FB_COMPAT_XPMAC
-    if (!console_fb_info)
-	console_fb_info = &info->fb_info;
-#endif
-
-	return 0;
-
-err_out:
-	iounmap(info->frame_buffer);
-	iounmap(info->regbase);
-err_free_info:
-	kfree(info);
-err_unmap_out:
-	release_mem_region(pci_resource_start(pdev, 2),
-			pci_resource_len(pdev, 2));
-err_free_mmio:
-	release_mem_region(pci_resource_start(pdev, 0),
-			pci_resource_len(pdev, 0));
-err_free_fb:
-	release_mem_region(pci_resource_start(pdev, 1),
-			pci_resource_len(pdev, 1));
-	return -ENODEV;
-}
-#endif /* CONFIG_PCI */
-
-
-/* PPC and Sparc cannot read video ROM */
-#if !defined(CONFIG_PPC) && !defined(__sparc__)
-static char __init
-*aty128find_ROM(struct fb_info_aty128 *info)
-{
-	u32  segstart;
-	char *rom_base;
-	char *rom;
-	int  stage;
-	int  i;
-	char aty_rom_sig[] = "761295520";   /* ATI ROM Signature      */
-	char R128_sig[] = "R128";           /* Rage128 ROM identifier */
-
-	for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
-        	stage = 1;
-
-		rom_base = (char *)ioremap(segstart, 0x1000);
-
-		if ((*rom_base == 0x55) && (((*(rom_base + 1)) & 0xff) == 0xaa))
-			stage = 2;
-
-		if (stage != 2) {
-			iounmap(rom_base);
-			continue;
-		}
-		rom = rom_base;
-
-		for (i = 0; (i < 128 - strlen(aty_rom_sig)) && (stage != 3); i++) {
-			if (aty_rom_sig[0] == *rom)
-				if (strncmp(aty_rom_sig, rom,
-						strlen(aty_rom_sig)) == 0)
-					stage = 3;
-			rom++;
-		}
-		if (stage != 3) {
-			iounmap(rom_base);
-			continue;
-		}
-		rom = rom_base;
-
-		/* ATI signature found.  Let's see if it's a Rage128 */
-		for (i = 0; (i < 512) && (stage != 4); i++) {
-			if (R128_sig[0] == *rom)
-				if (strncmp(R128_sig, rom, 
-						strlen(R128_sig)) == 0)
-					stage = 4;
-			rom++;
-		}
-		if (stage != 4) {
-			iounmap(rom_base);
-			continue;
-		}
-
-		return rom_base;
-	}
-
-	return NULL;
-}
-
-
-static void __init
-aty128_get_pllinfo(struct fb_info_aty128 *info, char *bios_seg)
-{
-	void *bios_header;
-	void *header_ptr;
-	u16 bios_header_offset, pll_info_offset;
-	PLL_BLOCK pll;
-
-	bios_header = bios_seg + 0x48L;
-	header_ptr  = bios_header;
-
-	bios_header_offset = readw(header_ptr);
-	bios_header = bios_seg + bios_header_offset;
-	bios_header += 0x30;
-
-	header_ptr = bios_header;
-	pll_info_offset = readw(header_ptr);
-	header_ptr = bios_seg + pll_info_offset;
-
-	memcpy_fromio(&pll, header_ptr, 50);
-
-	info->constants.ppll_max = pll.PCLK_max_freq;
-	info->constants.ppll_min = pll.PCLK_min_freq;
-	info->constants.xclk = (u32)pll.XCLK;
-	info->constants.ref_divider = (u32)pll.PCLK_ref_divider;
-	info->constants.dotclock = (u32)pll.PCLK_ref_freq;
-
-	DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d dotclock %d\n",
-			info->constants.ppll_max, info->constants.ppll_min,
-			info->constants.xclk, info->constants.ref_divider,
-			info->constants.dotclock);
-
-}           
-#endif /* !CONFIG_PPC */
-
-
-/* fill in known card constants if pll_block is not available */
-static void __init
-aty128_timings(struct fb_info_aty128 *info)
-{
-#ifdef CONFIG_PPC
-    /* instead of a table lookup, assume OF has properly
-     * setup the PLL registers and use their values
-     * to set the XCLK values and reference divider values */
-
-    u32 x_mpll_ref_fb_div;
-    u32 xclk_cntl;
-    u32 Nx, M;
-    unsigned PostDivSet[] =
-        { 0, 1, 2, 4, 8, 3, 6, 12 };
-#endif
-
-    if (!info->constants.dotclock)
-        info->constants.dotclock = 2950;
-
-#ifdef CONFIG_PPC
-    x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV);
-    xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7;
-    Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8;
-    M  = x_mpll_ref_fb_div & 0x0000ff;
-
-    info->constants.xclk = round_div((2 * Nx *
-        info->constants.dotclock), (M * PostDivSet[xclk_cntl]));
-
-    info->constants.ref_divider =
-        aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
-#endif
-
-    if (!info->constants.ref_divider) {
-        info->constants.ref_divider = 0x3b;
-
-        aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e);
-        aty_pll_writeupdate(info);
-    }
-    aty_st_pll(PPLL_REF_DIV, info->constants.ref_divider);
-    aty_pll_writeupdate(info);
-
-    /* from documentation */
-    if (!info->constants.ppll_min)
-        info->constants.ppll_min = 12500;
-    if (!info->constants.ppll_max)
-        info->constants.ppll_max = 25000;    /* 23000 on some cards? */
-    if (!info->constants.xclk)
-        info->constants.xclk = 0x1d4d;	     /* same as mclk */
-
-    info->constants.fifo_width = 128;
-    info->constants.fifo_depth = 32;
-
-    switch (aty_ld_le32(MEM_CNTL) & 0x3) {
-    case 0:
-	info->mem = &sdr_128;
-	break;
-    case 1:
-	info->mem = &sdr_sgram;
-	break;
-    case 2:
-	info->mem = &ddr_sgram;
-	break;
-    default:
-	info->mem = &sdr_sgram;
-    }
-}
-
-
-static int
-aty128fbcon_switch(int con, struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    struct aty128fb_par par;
-
-    /* Do we have to save the colormap? */
-    if (fb_display[info->currcon].cmap.len)
-    	fb_get_cmap(&fb_display[info->currcon].cmap, 1,
-			aty128_getcolreg, fb);
-
-    /* set the current console */
-    info->currcon = con;
-
-    aty128_decode_var(&fb_display[con].var, &par, info);
-    aty128_set_par(&par, info);
-
-    aty128_set_dispsw(&fb_display[con], info, par.crtc.bpp,
-        par.accel_flags & FB_ACCELF_TEXT);
-
-    do_install_cmap(con, fb);
-
-    return 1;
-}
-
-
-    /*
-     *  Blank the display.
-     */
-static void
-aty128fbcon_blank(int blank, struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    u8 state = 0;
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-    if ((_machine == _MACH_Pmac) && blank)
-    	set_backlight_enable(0);
-#endif /* CONFIG_PMAC_BACKLIGHT */
-
-    if (blank & VESA_VSYNC_SUSPEND)
-	state |= 2;
-    if (blank & VESA_HSYNC_SUSPEND)
-	state |= 1;
-    if (blank & VESA_POWERDOWN)
-	state |= 4;
-
-    aty_st_8(CRTC_EXT_CNTL+1, state);
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-    if ((_machine == _MACH_Pmac) && !blank)
-    	set_backlight_enable(1);
-#endif /* CONFIG_PMAC_BACKLIGHT */
-}
-
-
-    /*
-     *  Read a single color register and split it into
-     *  colors/transparent. Return != 0 for invalid regno.
-     */
-static int
-aty128_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
-                         u_int *transp, struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *) fb;
-
-    if (regno > 255)
-	return 1;
-
-    *red = (info->palette[regno].red<<8) | info->palette[regno].red;
-    *green = (info->palette[regno].green<<8) | info->palette[regno].green;
-    *blue = (info->palette[regno].blue<<8) | info->palette[regno].blue;
-    *transp = 0;
-
-    return 0;
-}
-
-    /*
-     *  Set a single color register. The values supplied are already
-     *  rounded down to the hardware's capabilities (according to the
-     *  entries in the var structure). Return != 0 for invalid regno.
-     */
-static int
-aty128_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
-                         u_int transp, struct fb_info *fb)
-{
-    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
-    u32 col;
-
-    if (regno > 255)
-	return 1;
-
-    red >>= 8;
-    green >>= 8;
-    blue >>= 8;
-    info->palette[regno].red = red;
-    info->palette[regno].green = green;
-    info->palette[regno].blue = blue;
-
-    /* Note: For now, on M3, we set palette on both heads, which may
-     * be useless. Can someone with a M3 check this ? */
-
-    /* initialize gamma ramp for hi-color+ */
-
-    if ((info->current_par.crtc.bpp > 8) && (regno == 0)) {
-        int i;
-
-        if (info->chip_gen == rage_M3)
-            aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & ~DAC_PALETTE_ACCESS_CNTL);
-
-        for (i=16; i<256; i++) {
-            aty_st_8(PALETTE_INDEX, i);
-            col = (i << 16) | (i << 8) | i;
-            aty_st_le32(PALETTE_DATA, col);
-        }
-
-        if (info->chip_gen == rage_M3) {
-            aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PALETTE_ACCESS_CNTL);
-
-            for (i=16; i<256; i++) {
-                aty_st_8(PALETTE_INDEX, i);
-                col = (i << 16) | (i << 8) | i;
-                aty_st_le32(PALETTE_DATA, col);
-            }
-        }
-    }
-
-    /* initialize palette */
-
-    if (info->chip_gen == rage_M3)
-        aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & ~DAC_PALETTE_ACCESS_CNTL);
-
-    if (info->current_par.crtc.bpp == 16)
-        aty_st_8(PALETTE_INDEX, (regno << 3));
-    else
-        aty_st_8(PALETTE_INDEX, regno);
-    col = (red << 16) | (green << 8) | blue;
-    aty_st_le32(PALETTE_DATA, col);
-    if (info->chip_gen == rage_M3) {
-    	aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PALETTE_ACCESS_CNTL);
-        if (info->current_par.crtc.bpp == 16)
-            aty_st_8(PALETTE_INDEX, (regno << 3));
-        else
-            aty_st_8(PALETTE_INDEX, regno);
-        aty_st_le32(PALETTE_DATA, col);
-    }
-
-    if (regno < 16)
-	switch (info->current_par.crtc.bpp) {
-#ifdef FBCON_HAS_CFB16
-	case 9 ... 16:
-	    info->fbcon_cmap.cfb16[regno] = (regno << 10) | (regno << 5) |
-                regno;
-	    break;
-#endif
-#ifdef FBCON_HAS_CFB24
-	case 17 ... 24:
-	    info->fbcon_cmap.cfb24[regno] = (regno << 16) | (regno << 8) |
-		regno;
-	    break;
-#endif
-#ifdef FBCON_HAS_CFB32
-	case 25 ... 32: {
-            u32 i;
-
-            i = (regno << 8) | regno;
-            info->fbcon_cmap.cfb32[regno] = (i << 16) | i;
-	    break;
-        }
-#endif
-	}
-    return 0;
-}
-
-
-static void
-do_install_cmap(int con, struct fb_info *info)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
-
-    if (con != fb->currcon)
-	return;
-
-    if (fb_display[con].cmap.len)
-	fb_set_cmap(&fb_display[con].cmap, 1, aty128_setcolreg, info);
-    else {
-	int size = (fb_display[con].var.bits_per_pixel <= 8) ? 256 : 16;
-	fb_set_cmap(fb_default_cmap(size), 1, aty128_setcolreg, info);
-    }
-}
-
-
-#ifdef CONFIG_PMAC_BACKLIGHT
-static int backlight_conv[] = {
-	0xff, 0xc0, 0xb5, 0xaa, 0x9f, 0x94, 0x89, 0x7e,
-	0x73, 0x68, 0x5d, 0x52, 0x47, 0x3c, 0x31, 0x24
-};
-
-static int
-aty128_set_backlight_enable(int on, int level, void* data)
-{
-	struct fb_info_aty128 *info = (struct fb_info_aty128 *)data;
-	unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL);
-	
-	reg |= LVDS_BL_MOD_EN | LVDS_BLON;
-	if (on && level > BACKLIGHT_OFF) {
-		reg &= ~LVDS_BL_MOD_LEVEL_MASK;
-		reg |= (backlight_conv[level] << LVDS_BL_MOD_LEVEL_SHIFT);
-	} else {
-		reg &= ~LVDS_BL_MOD_LEVEL_MASK;
-		reg |= (backlight_conv[0] << LVDS_BL_MOD_LEVEL_SHIFT);
-	}
-	aty_st_le32(LVDS_GEN_CNTL, reg);
-
-	return 0;
-}
-
-static int
-aty128_set_backlight_level(int level, void* data)
-{
-	return aty128_set_backlight_enable(1, level, data);
-}
-#endif /* CONFIG_PMAC_BACKLIGHT */
-
-    /*
-     *  Accelerated functions
-     */
-
-static inline void
-aty128_rectcopy(int srcx, int srcy, int dstx, int dsty,
-		u_int width, u_int height,
-		struct fb_info_aty128 *info)
-{
-    u32 save_dp_datatype, save_dp_cntl, bppval;
-
-    if (!width || !height)
-        return;
-
-    bppval = bpp_to_depth(info->current_par.crtc.bpp);
-    if (bppval == DST_24BPP) {
-        srcx *= 3;
-        dstx *= 3;
-        width *= 3;
-    } else if (bppval == -EINVAL) {
-        printk("aty128fb: invalid depth\n");
-        return;
-    }
-
-    wait_for_fifo(2, info);
-    save_dp_datatype = aty_ld_le32(DP_DATATYPE);
-    save_dp_cntl     = aty_ld_le32(DP_CNTL);
-
-    wait_for_fifo(6, info);
-    aty_st_le32(SRC_Y_X, (srcy << 16) | srcx);
-    aty_st_le32(DP_MIX, ROP3_SRCCOPY | DP_SRC_RECT);
-    aty_st_le32(DP_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM);
-    aty_st_le32(DP_DATATYPE, save_dp_datatype | bppval | SRC_DSTCOLOR);
-
-    aty_st_le32(DST_Y_X, (dsty << 16) | dstx);
-    aty_st_le32(DST_HEIGHT_WIDTH, (height << 16) | width);
-
-    info->blitter_may_be_busy = 1;
-
-    wait_for_fifo(2, info);
-    aty_st_le32(DP_DATATYPE, save_dp_datatype);
-    aty_st_le32(DP_CNTL, save_dp_cntl); 
-}
-
-
-    /*
-     * Text mode accelerated functions
-     */
-
-static void
-fbcon_aty128_bmove(struct display *p, int sy, int sx, int dy, int dx,
-			int height, int width)
-{
-    sx     *= fontwidth(p);
-    sy     *= fontheight(p);
-    dx     *= fontwidth(p);
-    dy     *= fontheight(p);
-    width  *= fontwidth(p);
-    height *= fontheight(p);
-
-    aty128_rectcopy(sx, sy, dx, dy, width, height,
-			(struct fb_info_aty128 *)p->fb_info);
-}
-
-
-#ifdef FBCON_HAS_CFB8
-static void fbcon_aty8_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb8_putc(conp, p, c, yy, xx);
-}
-
-
-static void fbcon_aty8_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
-}
-
-
-static void fbcon_aty8_clear_margins(struct vc_data *conp,
-                                     struct display *p, int bottom_only)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb8_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_aty128_8 = {
-    setup:		fbcon_cfb8_setup,
-    bmove:		fbcon_aty128_bmove,
-    clear:		fbcon_cfb8_clear,
-    putc:		fbcon_aty8_putc,
-    putcs:		fbcon_aty8_putcs,
-    revc:		fbcon_cfb8_revc,
-    clear_margins:	fbcon_aty8_clear_margins,
-    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-#ifdef FBCON_HAS_CFB16
-static void fbcon_aty16_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb16_putc(conp, p, c, yy, xx);
-}
-
-
-static void fbcon_aty16_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb16_putcs(conp, p, s, count, yy, xx);
-}
-
-
-static void fbcon_aty16_clear_margins(struct vc_data *conp,
-                                     struct display *p, int bottom_only)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb16_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_aty128_16 = {
-    setup:		fbcon_cfb16_setup,
-    bmove:		fbcon_aty128_bmove,
-    clear:		fbcon_cfb16_clear,
-    putc:		fbcon_aty16_putc,
-    putcs:		fbcon_aty16_putcs,
-    revc:		fbcon_cfb16_revc,
-    clear_margins:	fbcon_aty16_clear_margins,
-    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-#ifdef FBCON_HAS_CFB24
-static void fbcon_aty24_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb24_putc(conp, p, c, yy, xx);
-}
-
-
-static void fbcon_aty24_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb24_putcs(conp, p, s, count, yy, xx);
-}
-
-
-static void fbcon_aty24_clear_margins(struct vc_data *conp,
-                                     struct display *p, int bottom_only)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb24_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_aty128_24 = {
-    setup:		fbcon_cfb24_setup,
-    bmove:		fbcon_aty128_bmove,
-    clear:		fbcon_cfb24_clear,
-    putc:		fbcon_aty24_putc,
-    putcs:		fbcon_aty24_putcs,
-    revc:		fbcon_cfb24_revc,
-    clear_margins:	fbcon_aty24_clear_margins,
-    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-#ifdef FBCON_HAS_CFB32
-static void fbcon_aty32_putc(struct vc_data *conp, struct display *p,
-                            int c, int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb32_putc(conp, p, c, yy, xx);
-}
-
-
-static void fbcon_aty32_putcs(struct vc_data *conp, struct display *p,
-                             const unsigned short *s, int count,
-                             int yy, int xx)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb32_putcs(conp, p, s, count, yy, xx);
-}
-
-
-static void fbcon_aty32_clear_margins(struct vc_data *conp,
-                                     struct display *p, int bottom_only)
-{
-    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
-
-    if (fb->blitter_may_be_busy)
-        wait_for_idle(fb);
-
-    fbcon_cfb32_clear_margins(conp, p, bottom_only);
-}
-
-static struct display_switch fbcon_aty128_32 = {
-    setup:		fbcon_cfb32_setup,
-    bmove:		fbcon_aty128_bmove,
-    clear:		fbcon_cfb32_clear,
-    putc:		fbcon_aty32_putc,
-    putcs:		fbcon_aty32_putcs,
-    revc:		fbcon_cfb32_revc,
-    clear_margins:	fbcon_aty32_clear_margins,
-    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
-};
-#endif
-
-#ifdef MODULE
-MODULE_AUTHOR("(c)1999-2000 Brad Douglas <brad@neruo.com>");
-MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards");
-MODULE_LICENSE("GPL");
-MODULE_PARM(noaccel, "i");
-MODULE_PARM_DESC(noaccel, "Disable hardware acceleration (0 or 1=disabled) (default=0)");
-MODULE_PARM(font, "s");
-MODULE_PARM_DESC(font, "Specify one of the compiled-in fonts (default=none)");
-MODULE_PARM(mode, "s");
-MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
-#ifdef CONFIG_MTRR
-MODULE_PARM(nomtrr, "i");
-MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
-#endif
-
-int __init
-init_module(void)
-{
-    if (noaccel) {
-        noaccel = 1;
-        printk(KERN_INFO "aty128fb: Parameter NOACCEL set\n");
-    }
-    if (font) {
-        strncpy(fontname, font, sizeof(fontname)-1);
-        printk(KERN_INFO "aty128fb: Parameter FONT set to %s\n", font);
-    }
-    if (mode) {
-        mode_option = mode;
-        printk(KERN_INFO "aty128fb: Parameter MODE set to %s\n", mode);
-    }
-#ifdef CONFIG_MTRR
-    if (nomtrr) {
-        mtrr = 0;
-        printk(KERN_INFO "aty128fb: Parameter NOMTRR set\n");
-    }
-#endif
-    
-    aty128fb_init();
-    return 0;
-}
-
-void __exit
-cleanup_module(void)
-{
-    struct fb_info_aty128 *info = board_list;
-
-    while (board_list) {
-        info = board_list;
-        board_list = board_list->next;
-
-        unregister_framebuffer(&info->fb_info);
-#ifdef CONFIG_MTRR
-        if (info->mtrr.vram_valid)
-            mtrr_del(info->mtrr.vram, info->frame_buffer_phys,
-                     info->vram_size);
-#endif /* CONFIG_MTRR */
-        iounmap(info->regbase);
-        iounmap(info->frame_buffer);
-
-        release_mem_region(pci_resource_start(info->pdev, 0),
-                           pci_resource_len(info->pdev, 0));
-        release_mem_region(pci_resource_start(info->pdev, 1),
-                           pci_resource_len(info->pdev, 1));
-        release_mem_region(pci_resource_start(info->pdev, 2),
-                           pci_resource_len(info->pdev, 2));
-
-        kfree(info);
-    }
-}
-#endif /* MODULE */
+/* $Id: aty128fb.c,v 1.1.1.1 2003/06/23 22:18:36 jharrell Exp $
+ *  linux/drivers/video/aty128fb.c -- Frame buffer device for ATI Rage128
+ *
+ *  Copyright (C) 1999-2000, Brad Douglas <brad@neruo.com>
+ *  Copyright (C) 1999, Anthony Tong <atong@uiuc.edu>
+ *
+ *                Ani Joshi / Jeff Garzik
+ *                      - Code cleanup
+ *
+ *                Michel Dänzer <michdaen@iiic.ethz.ch>
+ *                      - 15/16 bit cleanup
+ *                      - fix panning
+ *                      
+ *                Benjamin Herrenschmidt
+ *                      - pmac-specific PM stuff
+ *
+ *                Andreas Hundt <andi@convergence.de>
+ *                      - FB_ACTIVATE fixes
+ *
+ *  Based off of Geert's atyfb.c and vfb.c.
+ *
+ *  TODO:
+ *		- monitor sensing (DDC)
+ *              - virtual display
+ *		- other platform support (only ppc/x86 supported)
+ *		- hardware cursor support
+ *		- ioctl()'s
+ *
+ *    Please cc: your patches to brad@neruo.com.
+ */
+
+/*
+ * A special note of gratitude to ATI's devrel for providing documentation,
+ * example code and hardware. Thanks Nitya.	-atong and brad
+ */
+
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <asm/uaccess.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/selection.h>
+#include <linux/console.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <asm/io.h>
+
+#ifdef CONFIG_PPC
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <video/macmodes.h>
+#ifdef CONFIG_NVRAM
+#include <linux/nvram.h>
+#endif
+#endif
+
+#ifdef CONFIG_ADB_PMU
+#include <linux/adb.h>
+#include <linux/pmu.h>
+#endif
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+#include <asm/backlight.h>
+#endif
+
+#ifdef CONFIG_FB_COMPAT_XPMAC
+#include <asm/vc_ioctl.h>
+#endif
+#ifdef CONFIG_BOOTX_TEXT
+#include <asm/btext.h>
+#endif /* CONFIG_BOOTX_TEXT */
+
+#include <video/fbcon.h>
+#include <video/fbcon-cfb8.h>
+#include <video/fbcon-cfb16.h>
+#include <video/fbcon-cfb24.h>
+#include <video/fbcon-cfb32.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif
+
+#include "aty128.h"
+
+/* Debug flag */
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(fmt, args...)		printk(KERN_DEBUG "aty128fb: %s " fmt, __FUNCTION__, ##args);
+#else
+#define DBG(fmt, args...)
+#endif
+
+#ifndef CONFIG_PPC
+/* default mode */
+static struct fb_var_screeninfo default_var __initdata = {
+    /* 640x480, 60 Hz, Non-Interlaced (25.175 MHz dotclock) */
+    640, 480, 640, 480, 0, 0, 8, 0,
+    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+    0, 0, -1, -1, 0, 39722, 48, 16, 33, 10, 96, 2,
+    0, FB_VMODE_NONINTERLACED
+};
+
+#else /* CONFIG_PPC */
+/* default to 1024x768 at 75Hz on PPC - this will work
+ * on the iMac, the usual 640x480 @ 60Hz doesn't. */
+static struct fb_var_screeninfo default_var = {
+    /* 1024x768, 75 Hz, Non-Interlaced (78.75 MHz dotclock) */
+    1024, 768, 1024, 768, 0, 0, 8, 0,
+    {0, 8, 0}, {0, 8, 0}, {0, 8, 0}, {0, 0, 0},
+    0, 0, -1, -1, 0, 12699, 160, 32, 28, 1, 96, 3,
+    FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
+};
+#endif /* CONFIG_PPC */
+
+/* default modedb mode */
+/* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
+static struct fb_videomode defaultmode __initdata = {
+	refresh:	60,
+	xres:		640,
+	yres:		480,
+	pixclock:	39722,
+	left_margin:	48,
+	right_margin:	16,
+	upper_margin:	33,
+	lower_margin:	10,
+	hsync_len:	96,
+	vsync_len:	2,
+	sync:		0,
+	vmode:		FB_VMODE_NONINTERLACED
+};
+
+/* struct to hold chip description information */
+struct aty128_chip_info {
+    const char *name;
+    unsigned short device;
+    int chip_gen;
+};
+
+/* Chip generations */
+enum {
+	rage_128,
+	rage_128_pro,
+	rage_M3
+};
+
+/* supported Rage128 chipsets */
+static struct aty128_chip_info aty128_pci_probe_list[] __initdata =
+{
+    {"Rage128 RE (PCI)", PCI_DEVICE_ID_ATI_RAGE128_RE, rage_128},
+    {"Rage128 RF (AGP)", PCI_DEVICE_ID_ATI_RAGE128_RF, rage_128},
+    {"Rage128 RK (PCI)", PCI_DEVICE_ID_ATI_RAGE128_RK, rage_128},
+    {"Rage128 RL (AGP)", PCI_DEVICE_ID_ATI_RAGE128_RL, rage_128},
+    {"Rage128 Pro PF (AGP)", PCI_DEVICE_ID_ATI_RAGE128_PF, rage_128_pro},
+    {"Rage128 Pro PR (PCI)", PCI_DEVICE_ID_ATI_RAGE128_PR, rage_128_pro},
+    {"Rage128 Pro TR (AGP)", PCI_DEVICE_ID_ATI_RAGE128_U3, rage_128_pro},
+    {"Rage Mobility M3 (PCI)", PCI_DEVICE_ID_ATI_RAGE128_LE, rage_M3},
+    {"Rage Mobility M3 (AGP)", PCI_DEVICE_ID_ATI_RAGE128_LF, rage_M3},
+    {NULL, 0, rage_128}
+ };
+
+/* packed BIOS settings */
+#ifndef CONFIG_PPC
+typedef struct {
+	u8 clock_chip_type;
+	u8 struct_size;
+	u8 accelerator_entry;
+	u8 VGA_entry;
+	u16 VGA_table_offset;
+	u16 POST_table_offset;
+	u16 XCLK;
+	u16 MCLK;
+	u8 num_PLL_blocks;
+	u8 size_PLL_blocks;
+	u16 PCLK_ref_freq;
+	u16 PCLK_ref_divider;
+	u32 PCLK_min_freq;
+	u32 PCLK_max_freq;
+	u16 MCLK_ref_freq;
+	u16 MCLK_ref_divider;
+	u32 MCLK_min_freq;
+	u32 MCLK_max_freq;
+	u16 XCLK_ref_freq;
+	u16 XCLK_ref_divider;
+	u32 XCLK_min_freq;
+	u32 XCLK_max_freq;
+} __attribute__ ((packed)) PLL_BLOCK;
+#endif /* !CONFIG_PPC */
+
+/* onboard memory information */
+struct aty128_meminfo {
+    u8 ML;
+    u8 MB;
+    u8 Trcd;
+    u8 Trp;
+    u8 Twr;
+    u8 CL;
+    u8 Tr2w;
+    u8 LoopLatency;
+    u8 DspOn;
+    u8 Rloop;
+    const char *name;
+};
+
+/* various memory configurations */
+static const struct aty128_meminfo sdr_128   =
+    { 4, 4, 3, 3, 1, 3, 1, 16, 30, 16, "128-bit SDR SGRAM (1:1)" };
+static const struct aty128_meminfo sdr_64    =
+    { 4, 8, 3, 3, 1, 3, 1, 17, 46, 17, "64-bit SDR SGRAM (1:1)" };
+static const struct aty128_meminfo sdr_sgram =
+    { 4, 4, 1, 2, 1, 2, 1, 16, 24, 16, "64-bit SDR SGRAM (2:1)" };
+static const struct aty128_meminfo ddr_sgram =
+    { 4, 4, 3, 3, 2, 3, 1, 16, 31, 16, "64-bit DDR SGRAM" };
+
+static const char *aty128fb_name = "ATY Rage128";
+static char fontname[40] __initdata = { 0 };
+
+static int  noaccel __initdata = 0;
+static char *font __initdata = NULL;
+static char *mode __initdata = NULL;
+static int  nomtrr __initdata = 0;
+
+static char *mode_option __initdata = NULL;
+
+#ifdef CONFIG_PPC
+static int default_vmode __initdata = VMODE_1024_768_60;
+static int default_cmode __initdata = CMODE_8;
+#endif
+
+#ifdef CONFIG_PMAC_PBOOK
+static int default_crt_on __initdata = 0;
+static int default_lcd_on __initdata = 1;
+#endif
+
+#ifdef CONFIG_MTRR
+static int mtrr = 1;
+#endif
+
+/* PLL constants */
+struct aty128_constants {
+    u32 dotclock;
+    u32 ppll_min;
+    u32 ppll_max;
+    u32 ref_divider;
+    u32 xclk;
+    u32 fifo_width;
+    u32 fifo_depth;
+};
+
+struct aty128_crtc {
+    u32 gen_cntl;
+    u32 ext_cntl;
+    u32 h_total, h_sync_strt_wid;
+    u32 v_total, v_sync_strt_wid;
+    u32 pitch;
+    u32 offset, offset_cntl;
+    u32 xoffset, yoffset;
+    u32 vxres, vyres;
+    u32 depth, bpp;
+};
+
+struct aty128_pll {
+    u32 post_divider;
+    u32 feedback_divider;
+    u32 vclk;
+};
+
+struct aty128_ddafifo {
+    u32 dda_config;
+    u32 dda_on_off;
+};
+
+/* register values for a specific mode */
+struct aty128fb_par {
+    struct aty128_crtc crtc;
+    struct aty128_pll pll;
+    struct aty128_ddafifo fifo_reg;
+    u32 accel_flags;
+};
+
+struct fb_info_aty128 {
+    struct fb_info fb_info;
+    struct fb_info_aty128 *next;
+    struct aty128_constants constants;  /* PLL and others      */
+    unsigned long regbase_phys;         /* physical mmio       */
+    void *regbase;                      /* remapped mmio       */
+    unsigned long frame_buffer_phys;    /* physical fb memory  */
+    void *frame_buffer;                 /* remaped framebuffer */
+    u32 vram_size;                      /* onboard video ram   */
+    int chip_gen;
+    const struct aty128_meminfo *mem;   /* onboard mem info    */
+    struct aty128fb_par default_par, current_par;
+    struct display disp;
+    struct { u8 red, green, blue, pad; } palette[256];
+    union {
+#ifdef FBCON_HAS_CFB16
+    u16 cfb16[16];
+#endif
+#ifdef FBCON_HAS_CFB24
+    u32 cfb24[16];
+#endif
+#ifdef FBCON_HAS_CFB32
+    u32 cfb32[16];
+#endif
+    } fbcon_cmap;
+#ifdef CONFIG_PCI
+    struct pci_dev *pdev;
+#endif
+#ifdef CONFIG_MTRR
+    struct { int vram; int vram_valid; } mtrr;
+#endif
+    int currcon;
+    int blitter_may_be_busy;
+    int fifo_slots;                 /* free slots in FIFO (64 max) */
+#ifdef CONFIG_PMAC_PBOOK
+    unsigned char *save_framebuffer;
+    int	pm_reg;
+    int crt_on, lcd_on;
+    u32 save_lcd_gen_cntl;
+#endif
+};
+
+static struct fb_info_aty128 *board_list = NULL;
+
+#ifdef CONFIG_PMAC_PBOOK
+  int aty128_sleep_notify(struct pmu_sleep_notifier *self, int when);
+  static struct pmu_sleep_notifier aty128_sleep_notifier = {
+  	aty128_sleep_notify, SLEEP_LEVEL_VIDEO,
+  };
+#endif
+
+#define round_div(n, d) ((n+(d/2))/d)
+
+    /*
+     *  Interface used by the world
+     */
+
+int aty128fb_setup(char *options);
+
+static int aty128fb_get_fix(struct fb_fix_screeninfo *fix, int con,
+		       struct fb_info *info);
+static int aty128fb_get_var(struct fb_var_screeninfo *var, int con,
+		       struct fb_info *info);
+static int aty128fb_set_var(struct fb_var_screeninfo *var, int con,
+		       struct fb_info *info);
+static int aty128fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+			struct fb_info *info);
+static int aty128fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+			struct fb_info *info);
+static int aty128fb_pan_display(struct fb_var_screeninfo *var, int con,
+			   struct fb_info *fb);
+static int aty128fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
+		       u_long arg, int con, struct fb_info *info);
+static int aty128fb_rasterimg(struct fb_info *info, int start);
+
+
+    /*
+     *  Interface to the low level console driver
+     */
+
+int aty128fb_init(void);
+static int aty128fbcon_switch(int con, struct fb_info *fb);
+static void aty128fbcon_blank(int blank, struct fb_info *fb);
+
+    /*
+     *  Internal routines
+     */
+
+static void aty128_encode_fix(struct fb_fix_screeninfo *fix,
+				struct aty128fb_par *par,
+				const struct fb_info_aty128 *info);
+static void aty128_set_dispsw(struct display *disp,
+			struct fb_info_aty128 *info, int bpp, int accel);
+static int aty128_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+				u_int *transp, struct fb_info *info);
+static int aty128_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+				u_int transp, struct fb_info *info);
+static void do_install_cmap(int con, struct fb_info *info);
+static int aty128_encode_var(struct fb_var_screeninfo *var,
+                             const struct aty128fb_par *par,
+                             const struct fb_info_aty128 *info);
+static int aty128_decode_var(struct fb_var_screeninfo *var,
+                             struct aty128fb_par *par,
+                             const struct fb_info_aty128 *info);
+static int aty128_pci_register(struct pci_dev *pdev,
+                               const struct aty128_chip_info *aci);
+static struct fb_info_aty128 *aty128_board_list_add(struct fb_info_aty128
+				*board_list, struct fb_info_aty128 *new_node);
+#if !defined(CONFIG_PPC) && !defined(__sparc__)
+static void __init aty128_get_pllinfo(struct fb_info_aty128 *info,
+			char *bios_seg);
+static char __init *aty128find_ROM(struct fb_info_aty128 *info);
+#endif
+static void aty128_timings(struct fb_info_aty128 *info);
+static void aty128_init_engine(const struct aty128fb_par *par, 
+				struct fb_info_aty128 *info);
+static void aty128_reset_engine(const struct fb_info_aty128 *info);
+static void aty128_flush_pixel_cache(const struct fb_info_aty128 *info);
+static void do_wait_for_fifo(u16 entries, struct fb_info_aty128 *info);
+static void wait_for_fifo(u16 entries, struct fb_info_aty128 *info);
+static void wait_for_idle(struct fb_info_aty128 *info);
+static u32 depth_to_dst(u32 depth);
+
+#ifdef FBCON_HAS_CFB8
+static struct display_switch fbcon_aty128_8;
+static void fbcon_aty8_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx);
+static void fbcon_aty8_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx);
+#endif
+#ifdef FBCON_HAS_CFB16
+static struct display_switch fbcon_aty128_16;
+static void fbcon_aty16_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx);
+static void fbcon_aty16_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx);
+#endif
+#ifdef FBCON_HAS_CFB24
+static struct display_switch fbcon_aty128_24;
+static void fbcon_aty24_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx);
+static void fbcon_aty24_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx);
+#endif
+#ifdef FBCON_HAS_CFB32
+static struct display_switch fbcon_aty128_32;
+static void fbcon_aty32_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx);
+static void fbcon_aty32_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx);
+#endif
+
+static struct fb_ops aty128fb_ops = {
+	owner:		THIS_MODULE,
+	fb_get_fix:	aty128fb_get_fix,
+	fb_get_var:	aty128fb_get_var,
+	fb_set_var:	aty128fb_set_var,
+	fb_get_cmap:	aty128fb_get_cmap,
+	fb_set_cmap:	aty128fb_set_cmap,
+	fb_pan_display:	aty128fb_pan_display,
+	fb_ioctl:	aty128fb_ioctl,
+	fb_rasterimg:	aty128fb_rasterimg,
+};
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+static int aty128_set_backlight_enable(int on, int level, void* data);
+static int aty128_set_backlight_level(int level, void* data);
+
+static struct backlight_controller aty128_backlight_controller = {
+	aty128_set_backlight_enable,
+	aty128_set_backlight_level
+};
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+    /*
+     * Functions to read from/write to the mmio registers
+     *	- endian conversions may possibly be avoided by
+     *    using the other register aperture. TODO.
+     */
+static inline u32
+_aty_ld_le32(volatile unsigned int regindex, 
+                              const struct fb_info_aty128 *info)
+{
+    u32 val;
+
+#if defined(__powerpc__)
+    asm("lwbrx %0,%1,%2;eieio" : "=r"(val) : "b"(regindex), "r"(info->regbase));
+#else
+    val = readl (info->regbase + regindex);
+#endif
+
+    return val;
+}
+
+static inline void
+_aty_st_le32(volatile unsigned int regindex, u32 val, 
+                               const struct fb_info_aty128 *info)
+{
+#if defined(__powerpc__)
+    asm("stwbrx %0,%1,%2;eieio" : : "r"(val), "b"(regindex),
+                "r"(info->regbase) : "memory");
+#else
+    writel (val, info->regbase + regindex);
+#endif
+}
+
+static inline u8
+_aty_ld_8(unsigned int regindex, const struct fb_info_aty128 *info)
+{
+    return readb (info->regbase + regindex);
+}
+
+static inline void
+_aty_st_8(unsigned int regindex, u8 val, const struct fb_info_aty128 *info)
+{
+    writeb (val, info->regbase + regindex);
+}
+
+#define aty_ld_le32(regindex)		_aty_ld_le32(regindex, info)
+#define aty_st_le32(regindex, val)	_aty_st_le32(regindex, val, info)
+#define aty_ld_8(regindex)		_aty_ld_8(regindex, info)
+#define aty_st_8(regindex, val)		_aty_st_8(regindex, val, info)
+
+    /*
+     * Functions to read from/write to the pll registers
+     */
+
+#define aty_ld_pll(pll_index)		_aty_ld_pll(pll_index, info)
+#define aty_st_pll(pll_index, val)	_aty_st_pll(pll_index, val, info)
+
+
+static u32
+_aty_ld_pll(unsigned int pll_index,
+			const struct fb_info_aty128 *info)
+{       
+    aty_st_8(CLOCK_CNTL_INDEX, pll_index & 0x3F);
+    return aty_ld_le32(CLOCK_CNTL_DATA);
+}
+
+    
+static void
+_aty_st_pll(unsigned int pll_index, u32 val,
+			const struct fb_info_aty128 *info)
+{
+    aty_st_8(CLOCK_CNTL_INDEX, (pll_index & 0x3F) | PLL_WR_EN);
+    aty_st_le32(CLOCK_CNTL_DATA, val);
+}
+
+
+/* return true when the PLL has completed an atomic update */
+static int
+aty_pll_readupdate(const struct fb_info_aty128 *info)
+{
+    return !(aty_ld_pll(PPLL_REF_DIV) & PPLL_ATOMIC_UPDATE_R);
+}
+
+
+static void
+aty_pll_wait_readupdate(const struct fb_info_aty128 *info)
+{
+    unsigned long timeout = jiffies + HZ/100;	// should be more than enough
+    int reset = 1;
+
+    while (time_before(jiffies, timeout))
+	if (aty_pll_readupdate(info)) {
+	    reset = 0;
+	    break;
+	}
+
+    if (reset)	/* reset engine?? */
+	printk(KERN_DEBUG "aty128fb: PLL write timeout!\n");
+}
+
+
+/* tell PLL to update */
+static void
+aty_pll_writeupdate(const struct fb_info_aty128 *info)
+{
+    aty_pll_wait_readupdate(info);
+
+    aty_st_pll(PPLL_REF_DIV,
+	aty_ld_pll(PPLL_REF_DIV) | PPLL_ATOMIC_UPDATE_W);
+}
+
+
+/* write to the scratch register to test r/w functionality */
+static int __init
+register_test(const struct fb_info_aty128 *info)
+{
+    u32 val;
+    int flag = 0;
+
+    val = aty_ld_le32(BIOS_0_SCRATCH);
+
+    aty_st_le32(BIOS_0_SCRATCH, 0x55555555);
+    if (aty_ld_le32(BIOS_0_SCRATCH) == 0x55555555) {
+	aty_st_le32(BIOS_0_SCRATCH, 0xAAAAAAAA);
+
+	if (aty_ld_le32(BIOS_0_SCRATCH) == 0xAAAAAAAA)
+	    flag = 1; 
+    }
+
+    aty_st_le32(BIOS_0_SCRATCH, val);	// restore value
+    return flag;
+}
+
+
+    /*
+     * Accelerator engine functions
+     */
+static void
+do_wait_for_fifo(u16 entries, struct fb_info_aty128 *info)
+{
+    int i;
+
+    for (;;) {
+        for (i = 0; i < 2000000; i++) {
+            info->fifo_slots = aty_ld_le32(GUI_STAT) & 0x0fff;
+            if (info->fifo_slots >= entries)
+                return;
+        }
+	aty128_reset_engine(info);
+    }
+}
+
+
+static void
+wait_for_idle(struct fb_info_aty128 *info)
+{
+    int i;
+
+    do_wait_for_fifo(64, info);
+
+    for (;;) {
+        for (i = 0; i < 2000000; i++) {
+            if (!(aty_ld_le32(GUI_STAT) & (1 << 31))) {
+                aty128_flush_pixel_cache(info);
+                info->blitter_may_be_busy = 0;
+                return;
+            }
+        }
+        aty128_reset_engine(info);
+    }
+}
+
+
+static void
+wait_for_fifo(u16 entries, struct fb_info_aty128 *info)
+{
+    if (info->fifo_slots < entries)
+        do_wait_for_fifo(64, info);
+    info->fifo_slots -= entries;
+}
+
+
+static void
+aty128_flush_pixel_cache(const struct fb_info_aty128 *info)
+{
+    int i;
+    u32 tmp;
+
+    tmp = aty_ld_le32(PC_NGUI_CTLSTAT);
+    tmp &= ~(0x00ff);
+    tmp |= 0x00ff;
+    aty_st_le32(PC_NGUI_CTLSTAT, tmp);
+
+    for (i = 0; i < 2000000; i++)
+        if (!(aty_ld_le32(PC_NGUI_CTLSTAT) & PC_BUSY))
+            break;
+}
+
+
+static void
+aty128_reset_engine(const struct fb_info_aty128 *info)
+{
+    u32 gen_reset_cntl, clock_cntl_index, mclk_cntl;
+
+    aty128_flush_pixel_cache(info);
+
+    clock_cntl_index = aty_ld_le32(CLOCK_CNTL_INDEX);
+    mclk_cntl = aty_ld_pll(MCLK_CNTL);
+
+    aty_st_pll(MCLK_CNTL, mclk_cntl | 0x00030000);
+
+    gen_reset_cntl = aty_ld_le32(GEN_RESET_CNTL);
+    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl | SOFT_RESET_GUI);
+    aty_ld_le32(GEN_RESET_CNTL);
+    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl & ~(SOFT_RESET_GUI));
+    aty_ld_le32(GEN_RESET_CNTL);
+
+    aty_st_pll(MCLK_CNTL, mclk_cntl);
+    aty_st_le32(CLOCK_CNTL_INDEX, clock_cntl_index);
+    aty_st_le32(GEN_RESET_CNTL, gen_reset_cntl);
+
+    /* use old pio mode */
+    aty_st_le32(PM4_BUFFER_CNTL, PM4_BUFFER_CNTL_NONPM4);
+
+    DBG("engine reset");
+}
+
+
+static void
+aty128_init_engine(const struct aty128fb_par *par,
+		struct fb_info_aty128 *info)
+{
+    u32 pitch_value;
+
+    wait_for_idle(info);
+
+    /* 3D scaler not spoken here */
+    wait_for_fifo(1, info);
+    aty_st_le32(SCALE_3D_CNTL, 0x00000000);
+
+    aty128_reset_engine(info);
+
+    pitch_value = par->crtc.pitch;
+    if (par->crtc.bpp == 24) {
+        pitch_value = pitch_value * 3;
+    }
+
+    wait_for_fifo(4, info);
+    /* setup engine offset registers */
+    aty_st_le32(DEFAULT_OFFSET, 0x00000000);
+
+    /* setup engine pitch registers */
+    aty_st_le32(DEFAULT_PITCH, pitch_value);
+
+    /* set the default scissor register to max dimensions */
+    aty_st_le32(DEFAULT_SC_BOTTOM_RIGHT, (0x1FFF << 16) | 0x1FFF);
+
+    /* set the drawing controls registers */
+    aty_st_le32(DP_GUI_MASTER_CNTL,
+		GMC_SRC_PITCH_OFFSET_DEFAULT		|
+		GMC_DST_PITCH_OFFSET_DEFAULT		|
+		GMC_SRC_CLIP_DEFAULT			|
+		GMC_DST_CLIP_DEFAULT			|
+		GMC_BRUSH_SOLIDCOLOR			|
+		(depth_to_dst(par->crtc.depth) << 8)	|
+		GMC_SRC_DSTCOLOR			|
+		GMC_BYTE_ORDER_MSB_TO_LSB		|
+		GMC_DP_CONVERSION_TEMP_6500		|
+		ROP3_PATCOPY				|
+		GMC_DP_SRC_RECT				|
+		GMC_3D_FCN_EN_CLR			|
+		GMC_DST_CLR_CMP_FCN_CLEAR		|
+		GMC_AUX_CLIP_CLEAR			|
+		GMC_WRITE_MASK_SET);
+
+    wait_for_fifo(8, info);
+    /* clear the line drawing registers */
+    aty_st_le32(DST_BRES_ERR, 0);
+    aty_st_le32(DST_BRES_INC, 0);
+    aty_st_le32(DST_BRES_DEC, 0);
+
+    /* set brush color registers */
+    aty_st_le32(DP_BRUSH_FRGD_CLR, 0xFFFFFFFF); /* white */
+    aty_st_le32(DP_BRUSH_BKGD_CLR, 0x00000000); /* black */
+
+    /* set source color registers */
+    aty_st_le32(DP_SRC_FRGD_CLR, 0xFFFFFFFF);   /* white */
+    aty_st_le32(DP_SRC_BKGD_CLR, 0x00000000);   /* black */
+
+    /* default write mask */
+    aty_st_le32(DP_WRITE_MASK, 0xFFFFFFFF);
+
+    /* Wait for all the writes to be completed before returning */
+    wait_for_idle(info);
+}
+
+
+/* convert depth values to their register representation */
+static u32
+depth_to_dst(u32 depth)
+ {
+    if (depth <= 8)
+ 	return DST_8BPP;
+    else if (depth <= 15)
+         return DST_15BPP;
+    else if (depth == 16)
+        return DST_16BPP;
+    else if (depth <= 24)
+ 	return DST_24BPP;
+    else if (depth <= 32)
+ 	return DST_32BPP;
+
+    return -EINVAL;
+}
+
+
+    /*
+     * CRTC programming
+     */
+
+/* Program the CRTC registers */
+static void
+aty128_set_crtc(const struct aty128_crtc *crtc,
+		const struct fb_info_aty128 *info)
+{
+    aty_st_le32(CRTC_GEN_CNTL, crtc->gen_cntl);
+    aty_st_le32(CRTC_H_TOTAL_DISP, crtc->h_total);
+    aty_st_le32(CRTC_H_SYNC_STRT_WID, crtc->h_sync_strt_wid);
+    aty_st_le32(CRTC_V_TOTAL_DISP, crtc->v_total);
+    aty_st_le32(CRTC_V_SYNC_STRT_WID, crtc->v_sync_strt_wid);
+    aty_st_le32(CRTC_PITCH, crtc->pitch);
+    aty_st_le32(CRTC_OFFSET, crtc->offset);
+    aty_st_le32(CRTC_OFFSET_CNTL, crtc->offset_cntl);
+    /* Disable ATOMIC updating.  Is this the right place? */
+    aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~(0x00030000));
+}
+
+
+static int
+aty128_var_to_crtc(const struct fb_var_screeninfo *var,
+			struct aty128_crtc *crtc,
+			const struct fb_info_aty128 *info)
+{
+    u32 xres, yres, vxres, vyres, xoffset, yoffset, bpp, dst;
+    u32 left, right, upper, lower, hslen, vslen, sync, vmode;
+    u32 h_total, h_disp, h_sync_strt, h_sync_wid, h_sync_pol;
+    u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
+    u32 depth, bytpp;
+    u8 hsync_strt_pix[5] = { 0, 0x12, 9, 6, 5 };
+    u8 mode_bytpp[7] = { 0, 0, 1, 2, 2, 3, 4 };
+
+    /* input */
+    xres = var->xres;
+    yres = var->yres;
+    vxres   = var->xres_virtual;
+    vyres   = var->yres_virtual;
+    xoffset = var->xoffset;
+    yoffset = var->yoffset;
+    bpp   = var->bits_per_pixel;
+    left  = var->left_margin;
+    right = var->right_margin;
+    upper = var->upper_margin;
+    lower = var->lower_margin;
+    hslen = var->hsync_len;
+    vslen = var->vsync_len;
+    sync  = var->sync;
+    vmode = var->vmode;
+
+    if (bpp != 16)
+        depth = bpp;
+    else
+        depth = (var->green.length == 6) ? 16 : 15;
+
+    /* check for mode eligibility
+     * accept only non interlaced modes */
+    if ((vmode & FB_VMODE_MASK) != FB_VMODE_NONINTERLACED)
+	return -EINVAL;
+
+    /* convert (and round up) and validate */
+    xres = (xres + 7) & ~7;
+    xoffset = (xoffset + 7) & ~7;
+
+    if (vxres < xres + xoffset)
+	vxres = xres + xoffset;
+
+    if (vyres < yres + yoffset)
+	vyres = yres + yoffset;
+
+    /* convert depth into ATI register depth */
+    dst = depth_to_dst(depth);
+
+    if (dst == -EINVAL) {
+        printk(KERN_ERR "aty128fb: Invalid depth or RGBA\n");
+        return -EINVAL;
+    }
+
+    /* convert register depth to bytes per pixel */
+    bytpp = mode_bytpp[dst];
+
+    /* make sure there is enough video ram for the mode */
+    if ((u32)(vxres * vyres * bytpp) > info->vram_size) {
+        printk(KERN_ERR "aty128fb: Not enough memory for mode\n");
+        return -EINVAL;
+    }
+
+    h_disp = (xres >> 3) - 1;
+    h_total = (((xres + right + hslen + left) >> 3) - 1) & 0xFFFFL;
+
+    v_disp = yres - 1;
+    v_total = (yres + upper + vslen + lower - 1) & 0xFFFFL;
+
+    /* check to make sure h_total and v_total are in range */
+    if (((h_total >> 3) - 1) > 0x1ff || (v_total - 1) > 0x7FF) {
+        printk(KERN_ERR "aty128fb: invalid width ranges\n");
+        return -EINVAL;
+    }
+
+    h_sync_wid = (hslen + 7) >> 3;
+    if (h_sync_wid == 0)
+	h_sync_wid = 1;
+    else if (h_sync_wid > 0x3f)        /* 0x3f = max hwidth */
+	h_sync_wid = 0x3f;
+
+    h_sync_strt = h_disp + (right >> 3);
+
+    v_sync_wid = vslen;
+    if (v_sync_wid == 0)
+	v_sync_wid = 1;
+    else if (v_sync_wid > 0x1f)        /* 0x1f = max vwidth */
+	v_sync_wid = 0x1f;
+    
+    v_sync_strt = v_disp + lower;
+
+    h_sync_pol = sync & FB_SYNC_HOR_HIGH_ACT ? 0 : 1;
+    v_sync_pol = sync & FB_SYNC_VERT_HIGH_ACT ? 0 : 1;
+    
+    c_sync = sync & FB_SYNC_COMP_HIGH_ACT ? (1 << 4) : 0;
+
+    crtc->gen_cntl = 0x3000000L | c_sync | (dst << 8);
+
+    crtc->h_total = h_total | (h_disp << 16);
+    crtc->v_total = v_total | (v_disp << 16);
+
+    crtc->h_sync_strt_wid = hsync_strt_pix[bytpp] | (h_sync_strt << 3) |
+                (h_sync_wid << 16) | (h_sync_pol << 23);
+    crtc->v_sync_strt_wid = v_sync_strt | (v_sync_wid << 16) |
+                (v_sync_pol << 23);
+
+    crtc->pitch = vxres >> 3;
+
+    crtc->offset = 0;
+
+    if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_NOW)
+ 	 crtc->offset_cntl = 0x00010000;
+    else
+	 crtc->offset_cntl = 0;
+
+    crtc->vxres = vxres;
+    crtc->vyres = vyres;
+    crtc->xoffset = xoffset;
+    crtc->yoffset = yoffset;
+    crtc->depth = depth;
+    crtc->bpp = bpp;
+
+    return 0;
+}
+
+
+static int
+aty128_pix_width_to_var(int pix_width, struct fb_var_screeninfo *var)
+{
+
+    /* fill in pixel info */
+    switch (pix_width) {
+    case CRTC_PIX_WIDTH_8BPP:
+        var->bits_per_pixel = 8;
+	var->red.offset = 0;
+	var->red.length = 8;
+	var->green.offset = 0;
+	var->green.length = 8;
+	var->blue.offset = 0;
+	var->blue.length = 8;
+	var->transp.offset = 0;
+	var->transp.length = 0;
+	break;
+    case CRTC_PIX_WIDTH_15BPP:
+	var->bits_per_pixel = 16;
+	var->red.offset = 10;
+	var->red.length = 5;
+	var->green.offset = 5;
+	var->green.length = 5;
+	var->blue.offset = 0;
+	var->blue.length = 5;
+	var->transp.offset = 0;
+	var->transp.length = 0;
+	break;
+    case CRTC_PIX_WIDTH_16BPP:
+	var->bits_per_pixel = 16;
+	var->red.offset = 11;
+	var->red.length = 5;
+	var->green.offset = 5;
+	var->green.length = 6;
+	var->blue.offset = 0;
+	var->blue.length = 5;
+	var->transp.offset = 0;
+	var->transp.length = 0;
+	break;
+    case CRTC_PIX_WIDTH_24BPP:
+        var->bits_per_pixel = 24;
+        var->red.offset = 16;
+        var->red.length = 8;
+        var->green.offset = 8;
+        var->green.length = 8;
+        var->blue.offset = 0;
+        var->blue.length = 8;
+        var->transp.offset = 0;
+        var->transp.length = 0;
+        break;
+    case CRTC_PIX_WIDTH_32BPP:
+        var->bits_per_pixel = 32;
+	var->red.offset = 16;
+	var->red.length = 8;
+	var->green.offset = 8;
+	var->green.length = 8;
+	var->blue.offset = 0;
+	var->blue.length = 8;
+	var->transp.offset = 24;
+	var->transp.length = 8;
+	break;
+    default:
+        printk(KERN_ERR "aty128fb: Invalid pixel width\n");
+        return -EINVAL;
+    }
+
+    return 0;
+}
+
+
+static int
+aty128_crtc_to_var(const struct aty128_crtc *crtc,
+			struct fb_var_screeninfo *var)
+{
+    u32 xres, yres, left, right, upper, lower, hslen, vslen, sync;
+    u32 h_total, h_disp, h_sync_strt, h_sync_dly, h_sync_wid, h_sync_pol;
+    u32 v_total, v_disp, v_sync_strt, v_sync_wid, v_sync_pol, c_sync;
+    u32 pix_width;
+
+    /* fun with masking */
+    h_total     = crtc->h_total & 0x1ff;
+    h_disp      = (crtc->h_total >> 16) & 0xff;
+    h_sync_strt = (crtc->h_sync_strt_wid >> 3) & 0x1ff;
+    h_sync_dly  = crtc->h_sync_strt_wid & 0x7;
+    h_sync_wid  = (crtc->h_sync_strt_wid >> 16) & 0x3f;
+    h_sync_pol  = (crtc->h_sync_strt_wid >> 23) & 0x1;
+    v_total     = crtc->v_total & 0x7ff;
+    v_disp      = (crtc->v_total >> 16) & 0x7ff;
+    v_sync_strt = crtc->v_sync_strt_wid & 0x7ff;
+    v_sync_wid  = (crtc->v_sync_strt_wid >> 16) & 0x1f;
+    v_sync_pol  = (crtc->v_sync_strt_wid >> 23) & 0x1;
+    c_sync      = crtc->gen_cntl & CRTC_CSYNC_EN ? 1 : 0;
+    pix_width   = crtc->gen_cntl & CRTC_PIX_WIDTH_MASK;
+
+    /* do conversions */
+    xres  = (h_disp + 1) << 3;
+    yres  = v_disp + 1;
+    left  = ((h_total - h_sync_strt - h_sync_wid) << 3) - h_sync_dly;
+    right = ((h_sync_strt - h_disp) << 3) + h_sync_dly;
+    hslen = h_sync_wid << 3;
+    upper = v_total - v_sync_strt - v_sync_wid;
+    lower = v_sync_strt - v_disp;
+    vslen = v_sync_wid;
+    sync  = (h_sync_pol ? 0 : FB_SYNC_HOR_HIGH_ACT) |
+            (v_sync_pol ? 0 : FB_SYNC_VERT_HIGH_ACT) |
+            (c_sync ? FB_SYNC_COMP_HIGH_ACT : 0);
+
+    aty128_pix_width_to_var(pix_width, var);
+
+    var->xres = xres;
+    var->yres = yres;
+    var->xres_virtual = crtc->vxres;
+    var->yres_virtual = crtc->vyres;
+    var->xoffset = crtc->xoffset;
+    var->yoffset = crtc->yoffset;
+    var->left_margin  = left;
+    var->right_margin = right;
+    var->upper_margin = upper;
+    var->lower_margin = lower;
+    var->hsync_len = hslen;
+    var->vsync_len = vslen;
+    var->sync  = sync;
+    var->vmode = FB_VMODE_NONINTERLACED;
+
+    return 0;
+}
+
+static void
+aty128_set_crt_enable(struct fb_info_aty128 *info, int on)
+{
+    if (on) {
+	aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) | CRT_CRTC_ON);
+	aty_st_le32(DAC_CNTL, (aty_ld_le32(DAC_CNTL) | DAC_PALETTE2_SNOOP_EN));
+    } else
+	aty_st_le32(CRTC_EXT_CNTL, aty_ld_le32(CRTC_EXT_CNTL) & ~CRT_CRTC_ON);
+}
+
+static void
+aty128_set_lcd_enable(struct fb_info_aty128 *info, int on)
+{
+    u32 reg;
+    
+    if (on) {
+	reg = aty_ld_le32(LVDS_GEN_CNTL);
+	reg |= LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION;
+	reg &= ~LVDS_DISPLAY_DIS;
+	aty_st_le32(LVDS_GEN_CNTL, reg);
+#ifdef CONFIG_PMAC_BACKLIGHT
+	aty128_set_backlight_enable(get_backlight_enable(), get_backlight_level(), info);
+#endif	
+    } else {
+#ifdef CONFIG_PMAC_BACKLIGHT
+	aty128_set_backlight_enable(0, 0, info);
+#endif	
+	reg = aty_ld_le32(LVDS_GEN_CNTL);
+	reg |= LVDS_DISPLAY_DIS;
+        aty_st_le32(LVDS_GEN_CNTL, reg);
+        mdelay(100);
+	reg &= ~(LVDS_ON /*| LVDS_EN*/);
+	aty_st_le32(LVDS_GEN_CNTL, reg);
+    }
+}
+
+static void
+aty128_set_pll(struct aty128_pll *pll, const struct fb_info_aty128 *info)
+{
+    u32 div3;
+
+    unsigned char post_conv[] =	/* register values for post dividers */
+        { 2, 0, 1, 4, 2, 2, 6, 2, 3, 2, 2, 2, 7 };
+
+    /* select PPLL_DIV_3 */
+    aty_st_le32(CLOCK_CNTL_INDEX, aty_ld_le32(CLOCK_CNTL_INDEX) | (3 << 8));
+
+    /* reset PLL */
+    aty_st_pll(PPLL_CNTL,
+		aty_ld_pll(PPLL_CNTL) | PPLL_RESET | PPLL_ATOMIC_UPDATE_EN);
+
+    /* write the reference divider */
+    aty_pll_wait_readupdate(info);
+    aty_st_pll(PPLL_REF_DIV, info->constants.ref_divider & 0x3ff);
+    aty_pll_writeupdate(info);
+
+    div3 = aty_ld_pll(PPLL_DIV_3);
+    div3 &= ~PPLL_FB3_DIV_MASK;
+    div3 |= pll->feedback_divider;
+    div3 &= ~PPLL_POST3_DIV_MASK;
+    div3 |= post_conv[pll->post_divider] << 16;
+
+    /* write feedback and post dividers */
+    aty_pll_wait_readupdate(info);
+    aty_st_pll(PPLL_DIV_3, div3);
+    aty_pll_writeupdate(info);
+
+    aty_pll_wait_readupdate(info);
+    aty_st_pll(HTOTAL_CNTL, 0);	/* no horiz crtc adjustment */
+    aty_pll_writeupdate(info);
+
+    /* clear the reset, just in case */
+    aty_st_pll(PPLL_CNTL, aty_ld_pll(PPLL_CNTL) & ~PPLL_RESET);
+
+#if 0
+    if (info->chip_gen == rage_M3) {
+	/* XXX energy saving, disable VCLK during blanking */
+	aty_pll_wait_readupdate(info);
+    	aty_st_pll(VCLK_ECP_CNTL, aty_ld_pll(VCLK_ECP_CNTL) | 0xc0);
+		aty_pll_writeupdate(info);
+
+	/* Set PM clocks */
+	aty_pll_wait_readupdate(info);
+	aty_st_pll(XCLK_CNTL, aty_ld_pll(XCLK_CNTL) | 0x00330000);
+	aty_pll_writeupdate(info);
+	aty_pll_wait_readupdate(info);
+	aty_st_pll(MCLK_CNTL, aty_ld_pll(MCLK_CNTL) | 0x00000700);
+	aty_pll_writeupdate(info);
+    }
+#endif    
+}
+
+
+static int
+aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll,
+			const struct fb_info_aty128 *info)
+{
+    const struct aty128_constants c = info->constants;
+    unsigned char post_dividers[] = {1,2,4,8,3,6,12};
+    u32 output_freq;
+    u32 vclk;        /* in .01 MHz */
+    int i;
+    u32 n, d;
+
+    vclk = 100000000 / period_in_ps;	/* convert units to 10 kHz */
+
+    /* adjust pixel clock if necessary */
+    if (vclk > c.ppll_max)
+	vclk = c.ppll_max;
+    if (vclk * 12 < c.ppll_min)
+	vclk = c.ppll_min/12;
+
+    /* now, find an acceptable divider */
+    for (i = 0; i < sizeof(post_dividers); i++) {
+	output_freq = post_dividers[i] * vclk;
+	if (output_freq >= c.ppll_min && output_freq <= c.ppll_max)
+	    break;
+    }
+
+    /* calculate feedback divider */
+    n = c.ref_divider * output_freq;
+    d = c.dotclock;
+
+    pll->post_divider = post_dividers[i];
+    pll->feedback_divider = round_div(n, d);
+    pll->vclk = vclk;
+
+    DBG("post %d feedback %d vlck %d output %d ref_divider %d "
+			"vclk_per: %d\n", pll->post_divider,
+			pll->feedback_divider, vclk, output_freq,
+			c.ref_divider, period_in_ps);
+
+    return 0;
+}
+
+
+static int
+aty128_pll_to_var(const struct aty128_pll *pll, struct fb_var_screeninfo *var,
+		const struct fb_info_aty128 *info)
+{
+    var->pixclock = 100000000 / pll->vclk;
+
+    return 0;
+}
+
+
+static void
+aty128_set_fifo(const struct aty128_ddafifo *dsp,
+			const struct fb_info_aty128 *info)
+{
+    aty_st_le32(DDA_CONFIG, dsp->dda_config);
+    aty_st_le32(DDA_ON_OFF, dsp->dda_on_off);
+}
+
+
+static int
+aty128_ddafifo(struct aty128_ddafifo *dsp,
+		const struct aty128_pll *pll,
+		u32 depth,
+		const struct fb_info_aty128 *info)
+{
+    const struct aty128_meminfo *m = info->mem;
+    u32 xclk = info->constants.xclk;
+    u32 fifo_width = info->constants.fifo_width;
+    u32 fifo_depth = info->constants.fifo_depth;
+    s32 x, b, p, ron, roff;
+    u32 n, d, bpp;
+
+    /* round up to multiple of 8 */
+    bpp = (depth+7) & ~7;
+
+    n = xclk * fifo_width;
+    d = pll->vclk * bpp;
+    x = round_div(n, d);
+
+    ron = 4 * m->MB +
+	3 * ((m->Trcd - 2 > 0) ? m->Trcd - 2 : 0) +
+	2 * m->Trp +
+	m->Twr +
+	m->CL +
+	m->Tr2w +
+	x;
+
+    DBG("x %x\n", x);
+
+    b = 0;
+    while (x) {
+	x >>= 1;
+	b++;
+    }
+    p = b + 1;
+
+    ron <<= (11 - p);
+
+    n <<= (11 - p);
+    x = round_div(n, d);
+    roff = x * (fifo_depth - 4);
+
+    if ((ron + m->Rloop) >= roff) {
+	printk(KERN_ERR "aty128fb: Mode out of range!\n");
+	return -EINVAL;
+    }
+
+    DBG("p: %x rloop: %x x: %x ron: %x roff: %x\n",
+			p, m->Rloop, x, ron, roff);
+
+    dsp->dda_config = p << 16 | m->Rloop << 20 | x;
+    dsp->dda_on_off = ron << 16 | roff;
+
+    return 0;
+}
+
+
+/*
+ * This actually sets the video mode.
+ */
+static void
+aty128_set_par(struct aty128fb_par *par,
+			struct fb_info_aty128 *info)
+{ 
+    u32 config;
+
+    info->current_par = *par;
+    
+    if (info->blitter_may_be_busy)
+        wait_for_idle(info);
+
+    /* clear all registers that may interfere with mode setting */
+    aty_st_le32(OVR_CLR, 0);
+    aty_st_le32(OVR_WID_LEFT_RIGHT, 0);
+    aty_st_le32(OVR_WID_TOP_BOTTOM, 0);
+    aty_st_le32(OV0_SCALE_CNTL, 0);
+    aty_st_le32(MPP_TB_CONFIG, 0);
+    aty_st_le32(MPP_GP_CONFIG, 0);
+    aty_st_le32(SUBPIC_CNTL, 0);
+    aty_st_le32(VIPH_CONTROL, 0);
+    aty_st_le32(I2C_CNTL_1, 0);         /* turn off i2c */
+    aty_st_le32(GEN_INT_CNTL, 0);	/* turn off interrupts */
+    aty_st_le32(CAP0_TRIG_CNTL, 0);
+    aty_st_le32(CAP1_TRIG_CNTL, 0);
+
+    aty_st_8(CRTC_EXT_CNTL + 1, 4);	/* turn video off */
+
+    aty128_set_crtc(&par->crtc, info);
+    aty128_set_pll(&par->pll, info);
+    aty128_set_fifo(&par->fifo_reg, info);
+
+    config = aty_ld_le32(CONFIG_CNTL) & ~3;
+
+#if defined(__BIG_ENDIAN)
+    if (par->crtc.bpp == 32)
+	config |= 2;	/* make aperture do 32 bit swapping */
+    else if (par->crtc.bpp == 16)
+	config |= 1;	/* make aperture do 16 bit swapping */
+#endif
+
+    aty_st_le32(CONFIG_CNTL, config);
+    aty_st_8(CRTC_EXT_CNTL + 1, 0);	/* turn the video back on */
+
+#ifdef CONFIG_PMAC_PBOOK
+    if (info->chip_gen == rage_M3) {
+	aty128_set_crt_enable(info, info->crt_on);
+	aty128_set_lcd_enable(info, info->lcd_on);
+    }
+#endif
+    if (par->accel_flags & FB_ACCELF_TEXT)
+        aty128_init_engine(par, info);
+
+#ifdef CONFIG_FB_COMPAT_XPMAC
+    if (!console_fb_info || console_fb_info == &info->fb_info) {
+        struct fb_var_screeninfo var;
+        int cmode, vmode;
+
+	display_info.height = ((par->crtc.v_total >> 16) & 0x7ff) + 1;
+	display_info.width = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3;
+	display_info.depth = par->crtc.bpp;
+	display_info.pitch = (par->crtc.vxres * par->crtc.bpp) >> 3;
+        aty128_encode_var(&var, par, info);
+	if (mac_var_to_vmode(&var, &vmode, &cmode))
+	    display_info.mode = 0;
+	else
+	    display_info.mode = vmode;
+	strcpy(display_info.name, aty128fb_name);
+	display_info.fb_address = info->frame_buffer_phys;
+	display_info.cmap_adr_address = 0;
+	display_info.cmap_data_address = 0;
+	display_info.disp_reg_address = info->regbase_phys;
+    }
+#endif /* CONFIG_FB_COMPAT_XPMAC */
+#if defined(CONFIG_BOOTX_TEXT)
+    btext_update_display(info->frame_buffer_phys,
+		    (((par->crtc.h_total>>16) & 0xff)+1)*8,
+		    ((par->crtc.v_total>>16) & 0x7ff)+1,
+		    par->crtc.bpp,
+		    par->crtc.vxres*par->crtc.bpp/8);
+#endif /* CONFIG_BOOTX_TEXT */
+}
+
+    /*
+     *  encode/decode the User Defined Part of the Display
+     */
+
+static int
+aty128_decode_var(struct fb_var_screeninfo *var, struct aty128fb_par *par,
+			const struct fb_info_aty128 *info)
+{
+    int err;
+
+    if ((err = aty128_var_to_crtc(var, &par->crtc, info)))
+	return err;
+
+    if ((err = aty128_var_to_pll(var->pixclock, &par->pll, info)))
+	return err;
+
+    if ((err = aty128_ddafifo(&par->fifo_reg, &par->pll, par->crtc.depth, info)))
+	return err;
+
+    if (var->accel_flags & FB_ACCELF_TEXT)
+	par->accel_flags = FB_ACCELF_TEXT;
+    else
+	par->accel_flags = 0;
+
+    return 0;
+}
+
+
+static int
+aty128_encode_var(struct fb_var_screeninfo *var,
+			const struct aty128fb_par *par,
+			const struct fb_info_aty128 *info)
+{
+    int err;
+
+    if ((err = aty128_crtc_to_var(&par->crtc, var)))
+	return err;
+
+    if ((err = aty128_pll_to_var(&par->pll, var, info)))
+	return err;
+
+    var->red.msb_right = 0;
+    var->green.msb_right = 0;
+    var->blue.msb_right = 0;
+    var->transp.msb_right = 0;
+
+    var->nonstd = 0;
+    var->activate = 0;
+
+    var->height = -1;
+    var->width = -1;
+    var->accel_flags = par->accel_flags;
+
+    return 0;
+}           
+
+
+    /*
+     *  Get the User Defined Part of the Display
+     */
+
+static int
+aty128fb_get_var(struct fb_var_screeninfo *var, int con, struct fb_info *fb)
+{
+    const struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+
+    if (con == -1)
+	aty128_encode_var(var, &info->default_par, info); 
+    else
+	*var = fb_display[con].var;
+    return 0;
+}
+
+
+    /*
+     *  Set the User Defined Part of the Display
+     */
+
+static int
+aty128fb_set_var(struct fb_var_screeninfo *var, int con, struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    struct aty128fb_par par;
+    struct display *display;
+    int oldxres, oldyres, oldvxres, oldvyres, oldbpp, oldgreen, oldaccel;
+    int accel, err;
+
+    display = (con >= 0) ? &fb_display[con] : fb->disp;
+
+    /* basic (in)sanity checks */
+    if (!var->xres)
+        var->xres = 1;
+    if (!var->yres)
+        var->yres = 1;
+    if (var->xres > var->xres_virtual)
+        var->xres_virtual = var->xres;
+    if (var->yres > var->yres_virtual)
+        var->yres_virtual = var->yres;
+
+    switch (var->bits_per_pixel) {
+        case 0 ... 8:
+            var->bits_per_pixel = 8;
+            break;
+        case 9 ... 16:
+            var->bits_per_pixel = 16;
+            break;
+        case 17 ... 24:
+            var->bits_per_pixel = 24;
+            break;
+        case 25 ... 32:
+            var->bits_per_pixel = 32;
+            break;
+        default:
+            return -EINVAL;
+    }
+
+    if ((err = aty128_decode_var(var, &par, info)))
+	return err;
+
+    aty128_encode_var(var, &par, info);
+
+    if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
+	return 0;
+
+    oldxres = display->var.xres;
+    oldyres = display->var.yres;
+    oldvxres = display->var.xres_virtual;
+    oldvyres = display->var.yres_virtual;
+    oldbpp = display->var.bits_per_pixel;
+    oldgreen = display->var.green.length;
+    oldaccel = display->var.accel_flags;
+    display->var = *var;
+    if (oldxres != var->xres || oldyres != var->yres ||
+	oldvxres != var->xres_virtual || oldvyres != var->yres_virtual ||
+	oldgreen != var->green.length || oldbpp != var->bits_per_pixel ||
+	oldaccel != var->accel_flags) {
+
+	struct fb_fix_screeninfo fix;
+
+	aty128_encode_fix(&fix, &par, info);
+        display->screen_base = info->frame_buffer;
+	display->visual = fix.visual;
+	display->type = fix.type;
+	display->type_aux = fix.type_aux;
+	display->ypanstep = fix.ypanstep;
+	display->ywrapstep = fix.ywrapstep;
+	display->line_length = fix.line_length;
+	display->can_soft_blank = 1;
+	display->inverse = 0;
+
+	accel = var->accel_flags & FB_ACCELF_TEXT;
+        aty128_set_dispsw(display, info, par.crtc.bpp, accel);
+
+	if (accel)
+	    display->scrollmode = SCROLL_YNOMOVE;
+	else
+	    display->scrollmode = SCROLL_YREDRAW;
+
+	if (info->fb_info.changevar)
+	    (*info->fb_info.changevar)(con);
+    }
+
+    if (!info->fb_info.display_fg || info->fb_info.display_fg->vc_num == con)
+	aty128_set_par(&par, info);
+
+    if (oldbpp != var->bits_per_pixel || oldgreen != var->green.length) {
+	if ((err = fb_alloc_cmap(&display->cmap, 0, 0)))
+	    return err;
+	do_install_cmap(con, &info->fb_info);
+    } 
+
+    return 0;
+}
+
+
+static void
+aty128_set_dispsw(struct display *disp,
+			struct fb_info_aty128 *info, int bpp, int accel)
+{
+    switch (bpp) {
+#ifdef FBCON_HAS_CFB8
+    case 8:
+	disp->dispsw = accel ? &fbcon_aty128_8 : &fbcon_cfb8;
+	break;
+#endif
+#ifdef FBCON_HAS_CFB16
+    case 16:
+	disp->dispsw = accel ? &fbcon_aty128_16 : &fbcon_cfb16;
+	disp->dispsw_data = info->fbcon_cmap.cfb16;
+	break;
+#endif
+#ifdef FBCON_HAS_CFB24
+    case 24:
+	disp->dispsw = accel ? &fbcon_aty128_24 : &fbcon_cfb24;
+	disp->dispsw_data = info->fbcon_cmap.cfb24;
+	break;
+#endif
+#ifdef FBCON_HAS_CFB32
+    case 32:
+	disp->dispsw = accel ? &fbcon_aty128_32 : &fbcon_cfb32;
+	disp->dispsw_data = info->fbcon_cmap.cfb32;
+	break;
+#endif
+    default:
+	disp->dispsw = &fbcon_dummy;
+    }
+}
+
+
+static void
+aty128_encode_fix(struct fb_fix_screeninfo *fix,
+			struct aty128fb_par *par,
+			const struct fb_info_aty128 *info)
+{
+    memset(fix, 0, sizeof(struct fb_fix_screeninfo));
+    
+    strcpy(fix->id, aty128fb_name);
+
+    fix->smem_start = (unsigned long)info->frame_buffer_phys;
+    fix->mmio_start = (unsigned long)info->regbase_phys;
+
+    fix->smem_len = info->vram_size;
+    fix->mmio_len = 0x1fff;
+
+    fix->type        = FB_TYPE_PACKED_PIXELS;
+    fix->type_aux    = 0;
+    fix->line_length = (par->crtc.vxres * par->crtc.bpp) >> 3;
+    fix->visual      = par->crtc.bpp == 8 ? FB_VISUAL_PSEUDOCOLOR
+                                          : FB_VISUAL_DIRECTCOLOR;
+    fix->ywrapstep = 0;
+    fix->xpanstep  = 8;
+    fix->ypanstep  = 1;
+
+    fix->accel = FB_ACCEL_ATI_RAGE128;
+
+    return;
+}
+
+
+    /*
+     *  Get the Fixed Part of the Display
+     */
+static int
+aty128fb_get_fix(struct fb_fix_screeninfo *fix, int con, struct fb_info *fb)
+{
+    const struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    struct aty128fb_par par;
+
+    if (con == -1)
+	par = info->default_par;
+    else
+	aty128_decode_var(&fb_display[con].var, &par, info); 
+
+    aty128_encode_fix(fix, &par, info);
+
+    return 0;            
+}
+
+
+    /*
+     *  Pan or Wrap the Display
+     */
+static int
+aty128fb_pan_display(struct fb_var_screeninfo *var, int con,
+			   struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    struct aty128fb_par *par = &info->current_par;
+    u32 xoffset, yoffset;
+    u32 offset;
+    u32 xres, yres;
+
+    xres = (((par->crtc.h_total >> 16) & 0xff) + 1) << 3;
+    yres = ((par->crtc.v_total >> 16) & 0x7ff) + 1;
+
+    xoffset = (var->xoffset +7) & ~7;
+    yoffset = var->yoffset;
+
+    if (xoffset+xres > par->crtc.vxres || yoffset+yres > par->crtc.vyres)
+        return -EINVAL;
+
+    par->crtc.xoffset = xoffset;
+    par->crtc.yoffset = yoffset;
+
+    offset = ((yoffset * par->crtc.vxres + xoffset)*(par->crtc.bpp >> 3)) & ~7;
+
+    if (par->crtc.bpp == 24)
+        offset += 8 * (offset % 3); /* Must be multiple of 8 and 3 */
+
+    aty_st_le32(CRTC_OFFSET, offset);
+
+    return 0;
+}
+
+
+    /*
+     *  Get the Colormap
+     */
+
+static int
+aty128fb_get_cmap(struct fb_cmap *cmap, int kspc, int con,
+			struct fb_info *info)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
+    struct display *disp = (con < 0) ? info->disp : (fb_display + con);
+
+    if (con == fb->currcon) /* current console? */
+        return fb_get_cmap(cmap, kspc, aty128_getcolreg, info);
+    else if (disp->cmap.len) /* non default colormap? */
+        fb_copy_cmap(&disp->cmap, cmap, kspc ? 0 : 2);
+    else
+        fb_copy_cmap(fb_default_cmap((disp->var.bits_per_pixel==8) ? 256 : 32),
+                     cmap, kspc ? 0 : 2);
+
+    return 0;
+}
+
+    /*
+     *  Set the Colormap
+     */
+
+static int
+aty128fb_set_cmap(struct fb_cmap *cmap, int kspc, int con,
+			struct fb_info *info)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
+    struct display *disp = (con < 0) ? info->disp : (fb_display + con);
+    unsigned int cmap_len = (disp->var.bits_per_pixel==8) ? 256 : 32;
+
+    if (disp->cmap.len != cmap_len) {
+        int err = fb_alloc_cmap(&disp->cmap, cmap_len, 0);
+
+    	if (!disp->cmap.len) {      /* no colormap allocated? */
+        	int size = (disp->var.bits_per_pixel <= 8) ? 256 : 32;
+		if ((err = fb_alloc_cmap(&disp->cmap, size, 0)))
+		    return err;
+	}
+        if (err) return err;
+    }
+
+    if (con == fb->currcon) /* current console? */
+	return fb_set_cmap(cmap, kspc, aty128_setcolreg, info);
+    else
+	fb_copy_cmap(cmap, &disp->cmap, kspc ? 0 : 1);
+
+    return 0;                
+}
+
+    /*
+     *  Helper function to store a single palette register
+     */
+static __inline__ void
+aty128_st_pal(u_int regno, u_int red, u_int green, u_int blue,
+	      struct fb_info_aty128 *info)
+{
+    /* Note: For now, on M3, we set palette on both heads, which may
+     * be useless. Can someone with a M3 check this ?
+     * 
+     * This code would still be useful if using the second CRTC to 
+     * do mirroring
+     */
+
+    if (info->chip_gen == rage_M3) {
+#if 0
+        aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PALETTE_ACCESS_CNTL);
+        aty_st_8(PALETTE_INDEX, regno);
+        aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue);
+#endif
+        aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & ~DAC_PALETTE_ACCESS_CNTL);
+    }
+    aty_st_8(PALETTE_INDEX, regno);
+    aty_st_le32(PALETTE_DATA, (red<<16)|(green<<8)|blue);
+}
+
+static int
+aty128fb_rasterimg(struct fb_info *info, int start)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    return 0;
+}
+
+
+int __init
+aty128fb_setup(char *options)
+{
+    char *this_opt;
+
+    if (!options || !*options)
+	return 0;
+
+    while ((this_opt = strsep(&options, ",")) != 0) {
+	if (!strncmp(this_opt, "font:", 5)) {
+	    char *p;
+	    int i;
+	    
+	    p = this_opt +5;
+	    for (i = 0; i < sizeof(fontname) - 1; i++)
+		if (!*p || *p == ' ' || *p == ',')
+		    break;
+	    memcpy(fontname, this_opt + 5, i);
+	    fontname[i] = 0;
+	} else if (!strncmp(this_opt, "noaccel", 7)) {
+	    noaccel = 1;
+#ifdef CONFIG_PMAC_PBOOK
+        } else if (!strncmp(this_opt, "lcd:", 4)) {
+            default_lcd_on = simple_strtoul(this_opt+4, NULL, 0);
+        } else if (!strncmp(this_opt, "crt:", 4)) {
+            default_crt_on = simple_strtoul(this_opt+4, NULL, 0);
+#endif
+        }
+#ifdef CONFIG_MTRR
+        else if(!strncmp(this_opt, "nomtrr", 6)) {
+            mtrr = 0;
+        }
+#endif
+#ifdef CONFIG_PPC
+        /* vmode and cmode depreciated */
+	else if (!strncmp(this_opt, "vmode:", 6)) {
+            unsigned int vmode = simple_strtoul(this_opt+6, NULL, 0);
+            if (vmode > 0 && vmode <= VMODE_MAX)
+                default_vmode = vmode;
+        } else if (!strncmp(this_opt, "cmode:", 6)) {
+            unsigned int cmode = simple_strtoul(this_opt+6, NULL, 0);
+            switch (cmode) {
+	    case 0:
+	    case 8:
+		default_cmode = CMODE_8;
+		break;
+	    case 15:
+	    case 16:
+		default_cmode = CMODE_16;
+		break;
+	    case 24:
+	    case 32:
+		default_cmode = CMODE_32;
+		break;
+            }
+        }
+#endif /* CONFIG_PPC */
+        else
+            mode_option = this_opt;
+    }
+    return 0;
+}
+
+
+    /*
+     *  Initialisation
+     */
+
+static int __init
+aty128_init(struct fb_info_aty128 *info, const char *name)
+{
+    struct fb_var_screeninfo var;
+    u32 dac;
+    int j, k;
+    u8 chip_rev;
+    const struct aty128_chip_info *aci = &aty128_pci_probe_list[0];
+    char *video_card = "Rage128";
+
+    if (!info->vram_size)	/* may have already been probed */
+	info->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
+
+    /* Get the chip revision */
+    chip_rev = (aty_ld_le32(CONFIG_CNTL) >> 16) & 0x1F;
+
+    /* put a name with the face */
+    while (aci->name && info->pdev->device != aci->device) { aci++; }
+    video_card = (char *)aci->name;
+    info->chip_gen = aci->chip_gen;
+
+    printk(KERN_INFO "aty128fb: %s [chip rev 0x%x] ", video_card, chip_rev);
+
+    if (info->vram_size % (1024 * 1024) == 0)
+	printk("%dM %s\n", info->vram_size / (1024*1024), info->mem->name);
+    else
+	printk("%dk %s\n", info->vram_size / 1024, info->mem->name);
+
+    /* fill in info */
+    strcpy(info->fb_info.modename, aty128fb_name);
+    info->fb_info.node  = -1;
+    info->fb_info.fbops = &aty128fb_ops;
+    info->fb_info.disp  = &info->disp;
+    strcpy(info->fb_info.fontname, fontname);
+    info->fb_info.changevar  = NULL;
+    info->fb_info.switch_con = &aty128fbcon_switch;
+    info->fb_info.updatevar  = NULL;
+    info->fb_info.blank = &aty128fbcon_blank;
+    info->fb_info.flags = FBINFO_FLAG_DEFAULT;
+#ifdef CONFIG_PMAC_PBOOK
+    info->lcd_on = default_lcd_on;
+    info->crt_on = default_crt_on;
+#endif
+    
+    var = default_var;
+#ifdef CONFIG_PPC
+    if (_machine == _MACH_Pmac) {
+        if (mode_option) {
+            if (!mac_find_mode(&var, &info->fb_info, mode_option, 8))
+                var = default_var;
+        } else {
+            if (default_vmode <= 0 || default_vmode > VMODE_MAX)
+                default_vmode = VMODE_1024_768_60;
+
+	    /* iMacs need that resolution
+	     * PowerMac2,1 first r128 iMacs
+	     * PowerMac2,2 summer 2000 iMacs
+	     * PowerMac4,1 january 2001 iMacs "flower power"
+	     */
+	    if (machine_is_compatible("PowerMac2,1") ||
+		machine_is_compatible("PowerMac2,2") ||
+		machine_is_compatible("PowerMac4,1"))
+		default_vmode = VMODE_1024_768_75;
+
+	    /* iBook SE */
+	    if (machine_is_compatible("PowerBook2,2"))
+		default_vmode = VMODE_800_600_60;
+ 
+	    /* PowerBook Firewire (Pismo), iBook Dual USB */
+	    if (machine_is_compatible("PowerBook3,1") ||
+	    	machine_is_compatible("PowerBook4,1"))
+		default_vmode = VMODE_1024_768_60;
+
+	    /* PowerBook Titanium */
+	    if (machine_is_compatible("PowerBook3,2"))
+		default_vmode = VMODE_1152_768_60;
+
+            if (default_cmode < CMODE_8 || default_cmode > CMODE_32)
+                default_cmode = CMODE_8;
+
+            if (mac_vmode_to_var(default_vmode, default_cmode, &var))
+                var = default_var;
+        }
+    } else
+#endif /* CONFIG_PPC */
+    {
+        if (fb_find_mode(&var, &info->fb_info, mode_option, NULL, 0,
+                          &defaultmode, 8) == 0)
+            var = default_var;
+    }
+
+    if (noaccel)
+        var.accel_flags &= ~FB_ACCELF_TEXT;
+    else
+        var.accel_flags |= FB_ACCELF_TEXT;
+
+    if (aty128_decode_var(&var, &info->default_par, info)) {
+	printk(KERN_ERR "aty128fb: Cannot set default mode.\n");
+	return 0;
+    }
+
+    /* load up the palette with default colors */
+    for (j = 0; j < 16; j++) {
+        k = color_table[j];
+        info->palette[j].red = default_red[k];
+        info->palette[j].green = default_grn[k];
+        info->palette[j].blue = default_blu[k];
+    }
+
+    /* setup the DAC the way we like it */
+    dac = aty_ld_le32(DAC_CNTL);
+    dac |= (DAC_8BIT_EN | DAC_RANGE_CNTL);
+    dac |= DAC_MASK;
+    if (info->chip_gen == rage_M3)
+    	dac |= DAC_PALETTE2_SNOOP_EN;
+    aty_st_le32(DAC_CNTL, dac);
+
+    /* turn off bus mastering, just in case */
+    aty_st_le32(BUS_CNTL, aty_ld_le32(BUS_CNTL) | BUS_MASTER_DIS);
+
+    aty128fb_set_var(&var, -1, &info->fb_info);
+    aty128_init_engine(&info->default_par, info);
+
+    board_list = aty128_board_list_add(board_list, info);
+
+    if (register_framebuffer(&info->fb_info) < 0)
+	return 0;
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+    /* Could be extended to Rage128Pro LVDS output too */
+    if (info->chip_gen == rage_M3)
+    	register_backlight_controller(&aty128_backlight_controller, info, "ati");
+#endif /* CONFIG_PMAC_BACKLIGHT */
+#ifdef CONFIG_PMAC_PBOOK
+    if (!info->pdev)
+    	printk(KERN_WARNING "aty128fb: Not a PCI card, can't enable power management\n");
+    else {
+	    info->pm_reg = pci_find_capability(info->pdev, PCI_CAP_ID_PM);
+	    pmu_register_sleep_notifier(&aty128_sleep_notifier);
+    }
+#endif
+
+    printk(KERN_INFO "fb%d: %s frame buffer device on %s\n",
+	   GET_FB_IDX(info->fb_info.node), aty128fb_name, name);
+
+    return 1;	/* success! */
+}
+
+
+/* add a new card to the list  ++ajoshi */
+static struct
+fb_info_aty128 *aty128_board_list_add(struct fb_info_aty128 *board_list,
+                                       struct fb_info_aty128 *new_node)
+{
+    struct fb_info_aty128 *i_p = board_list;
+
+    new_node->next = NULL;
+    if(board_list == NULL)
+	return new_node;
+    while(i_p->next != NULL)
+	i_p = i_p->next;
+    i_p->next = new_node;
+
+    return board_list;
+}
+
+
+int __init
+aty128fb_init(void)
+{
+#ifdef CONFIG_PCI
+    struct pci_dev *pdev = NULL;
+    const struct aty128_chip_info *aci = &aty128_pci_probe_list[0];
+
+    while (aci->name != NULL) {
+        pdev = pci_find_device(PCI_VENDOR_ID_ATI, aci->device, pdev);
+        while (pdev != NULL) {
+            if (aty128_pci_register(pdev, aci) == 0)
+                return 0;
+            pdev = pci_find_device(PCI_VENDOR_ID_ATI, aci->device, pdev);
+        }
+	aci++;
+    }
+#endif
+
+    return 0;
+}
+
+
+#ifdef CONFIG_PCI
+/* register a card    ++ajoshi */
+static int __init
+aty128_pci_register(struct pci_dev *pdev,
+                               const struct aty128_chip_info *aci)
+{
+	struct fb_info_aty128 *info = NULL;
+	unsigned long fb_addr, reg_addr;
+	int err;
+#if !defined(CONFIG_PPC) && !defined(__sparc__)
+	char *bios_seg = NULL;
+#endif
+
+	/* Enable device in PCI config */
+	if ((err = pci_enable_device(pdev))) {
+		printk(KERN_ERR "aty128fb: Cannot enable PCI device: %d\n",
+				err);
+		return -ENODEV;
+	}
+
+	fb_addr = pci_resource_start(pdev, 0);
+	if (!request_mem_region(fb_addr, pci_resource_len(pdev, 0),
+				"aty128fb FB")) {
+		printk(KERN_ERR "aty128fb: cannot reserve frame "
+				"buffer memory\n");
+		goto err_free_fb;
+	}
+
+	reg_addr = pci_resource_start(pdev, 2);
+	if (!request_mem_region(reg_addr, pci_resource_len(pdev, 2),
+				"aty128fb MMIO")) {
+		printk(KERN_ERR "aty128fb: cannot reserve MMIO region\n");
+		goto err_free_mmio;
+	}
+
+	/* We have the resources. Now virtualize them */
+	if (!(info = kmalloc(sizeof(struct fb_info_aty128), GFP_ATOMIC))) {
+		printk(KERN_ERR "aty128fb: can't alloc fb_info_aty128\n");
+		goto err_unmap_out;
+	}
+	memset(info, 0, sizeof(struct fb_info_aty128));
+
+	/* Copy PCI device info into info->pdev */
+	info->pdev = pdev;
+
+	info->currcon = -1;
+
+	/* Virtualize mmio region */
+	info->regbase_phys = reg_addr;
+	info->regbase = ioremap(reg_addr, 0x1FFF);
+
+	if (!info->regbase)
+		goto err_free_info;
+
+	/* Grab memory size from the card */
+	info->vram_size = aty_ld_le32(CONFIG_MEMSIZE) & 0x03FFFFFF;
+
+	/* Virtualize the framebuffer */
+	info->frame_buffer_phys = fb_addr;
+	info->frame_buffer = ioremap(fb_addr, info->vram_size);
+
+	if (!info->frame_buffer) {
+		iounmap((void *)info->regbase);
+		goto err_free_info;
+	}
+
+	/* If we can't test scratch registers, something is seriously wrong */
+	if (!register_test(info)) {
+		printk(KERN_ERR "aty128fb: Can't write to video register!\n");
+		goto err_out;
+	}
+
+#if !defined(CONFIG_PPC) && !defined(__sparc__)
+	if (!(bios_seg = aty128find_ROM(info)))
+		printk(KERN_INFO "aty128fb: Rage128 BIOS not located. "
+					"Guessing...\n");
+	else {
+		printk(KERN_INFO "aty128fb: Rage128 BIOS located at "
+				"segment %4.4X\n", (unsigned int)bios_seg);
+		aty128_get_pllinfo(info, bios_seg);
+	}
+#endif
+	aty128_timings(info);
+
+	if (!aty128_init(info, "PCI"))
+		goto err_out;
+
+#ifdef CONFIG_MTRR
+	if (mtrr) {
+		info->mtrr.vram = mtrr_add(info->frame_buffer_phys,
+				info->vram_size, MTRR_TYPE_WRCOMB, 1);
+		info->mtrr.vram_valid = 1;
+		/* let there be speed */
+		printk(KERN_INFO "aty128fb: Rage128 MTRR set to ON\n");
+	}
+#endif /* CONFIG_MTRR */
+
+#ifdef CONFIG_FB_COMPAT_XPMAC
+    if (!console_fb_info)
+	console_fb_info = &info->fb_info;
+#endif
+
+	return 0;
+
+err_out:
+	iounmap(info->frame_buffer);
+	iounmap(info->regbase);
+err_free_info:
+	kfree(info);
+err_unmap_out:
+	release_mem_region(pci_resource_start(pdev, 2),
+			pci_resource_len(pdev, 2));
+err_free_mmio:
+	release_mem_region(pci_resource_start(pdev, 0),
+			pci_resource_len(pdev, 0));
+err_free_fb:
+	release_mem_region(pci_resource_start(pdev, 1),
+			pci_resource_len(pdev, 1));
+	return -ENODEV;
+}
+#endif /* CONFIG_PCI */
+
+
+/* PPC and Sparc cannot read video ROM */
+#if !defined(CONFIG_PPC) && !defined(__sparc__)
+static char __init
+*aty128find_ROM(struct fb_info_aty128 *info)
+{
+	u32  segstart;
+	char *rom_base;
+	char *rom;
+	int  stage;
+	int  i;
+	char aty_rom_sig[] = "761295520";   /* ATI ROM Signature      */
+	char R128_sig[] = "R128";           /* Rage128 ROM identifier */
+
+	for (segstart=0x000c0000; segstart<0x000f0000; segstart+=0x00001000) {
+        	stage = 1;
+
+		rom_base = (char *)ioremap(segstart, 0x1000);
+
+		if ((*rom_base == 0x55) && (((*(rom_base + 1)) & 0xff) == 0xaa))
+			stage = 2;
+
+		if (stage != 2) {
+			iounmap(rom_base);
+			continue;
+		}
+		rom = rom_base;
+
+		for (i = 0; (i < 128 - strlen(aty_rom_sig)) && (stage != 3); i++) {
+			if (aty_rom_sig[0] == *rom)
+				if (strncmp(aty_rom_sig, rom,
+						strlen(aty_rom_sig)) == 0)
+					stage = 3;
+			rom++;
+		}
+		if (stage != 3) {
+			iounmap(rom_base);
+			continue;
+		}
+		rom = rom_base;
+
+		/* ATI signature found.  Let's see if it's a Rage128 */
+		for (i = 0; (i < 512) && (stage != 4); i++) {
+			if (R128_sig[0] == *rom)
+				if (strncmp(R128_sig, rom, 
+						strlen(R128_sig)) == 0)
+					stage = 4;
+			rom++;
+		}
+		if (stage != 4) {
+			iounmap(rom_base);
+			continue;
+		}
+
+		return rom_base;
+	}
+
+	return NULL;
+}
+
+
+static void __init
+aty128_get_pllinfo(struct fb_info_aty128 *info, char *bios_seg)
+{
+	void *bios_header;
+	void *header_ptr;
+	u16 bios_header_offset, pll_info_offset;
+	PLL_BLOCK pll;
+
+	bios_header = bios_seg + 0x48L;
+	header_ptr  = bios_header;
+
+	bios_header_offset = readw(header_ptr);
+	bios_header = bios_seg + bios_header_offset;
+	bios_header += 0x30;
+
+	header_ptr = bios_header;
+	pll_info_offset = readw(header_ptr);
+	header_ptr = bios_seg + pll_info_offset;
+
+	memcpy_fromio(&pll, header_ptr, 50);
+
+	info->constants.ppll_max = pll.PCLK_max_freq;
+	info->constants.ppll_min = pll.PCLK_min_freq;
+	info->constants.xclk = (u32)pll.XCLK;
+	info->constants.ref_divider = (u32)pll.PCLK_ref_divider;
+	info->constants.dotclock = (u32)pll.PCLK_ref_freq;
+
+	DBG("ppll_max %d ppll_min %d xclk %d ref_divider %d dotclock %d\n",
+			info->constants.ppll_max, info->constants.ppll_min,
+			info->constants.xclk, info->constants.ref_divider,
+			info->constants.dotclock);
+
+}           
+#endif /* !CONFIG_PPC */
+
+
+/* fill in known card constants if pll_block is not available */
+static void __init
+aty128_timings(struct fb_info_aty128 *info)
+{
+#ifdef CONFIG_PPC
+    /* instead of a table lookup, assume OF has properly
+     * setup the PLL registers and use their values
+     * to set the XCLK values and reference divider values */
+
+    u32 x_mpll_ref_fb_div;
+    u32 xclk_cntl;
+    u32 Nx, M;
+    unsigned PostDivSet[] =
+        { 0, 1, 2, 4, 8, 3, 6, 12 };
+#endif
+
+    if (!info->constants.dotclock)
+        info->constants.dotclock = 2950;
+
+#ifdef CONFIG_PPC
+    x_mpll_ref_fb_div = aty_ld_pll(X_MPLL_REF_FB_DIV);
+    xclk_cntl = aty_ld_pll(XCLK_CNTL) & 0x7;
+    Nx = (x_mpll_ref_fb_div & 0x00ff00) >> 8;
+    M  = x_mpll_ref_fb_div & 0x0000ff;
+
+    info->constants.xclk = round_div((2 * Nx *
+        info->constants.dotclock), (M * PostDivSet[xclk_cntl]));
+
+    info->constants.ref_divider =
+        aty_ld_pll(PPLL_REF_DIV) & PPLL_REF_DIV_MASK;
+#endif
+
+    if (!info->constants.ref_divider) {
+        info->constants.ref_divider = 0x3b;
+
+        aty_st_pll(X_MPLL_REF_FB_DIV, 0x004c4c1e);
+        aty_pll_writeupdate(info);
+    }
+    aty_st_pll(PPLL_REF_DIV, info->constants.ref_divider);
+    aty_pll_writeupdate(info);
+
+    /* from documentation */
+    if (!info->constants.ppll_min)
+        info->constants.ppll_min = 12500;
+    if (!info->constants.ppll_max)
+        info->constants.ppll_max = 25000;    /* 23000 on some cards? */
+    if (!info->constants.xclk)
+        info->constants.xclk = 0x1d4d;	     /* same as mclk */
+
+    info->constants.fifo_width = 128;
+    info->constants.fifo_depth = 32;
+
+    switch (aty_ld_le32(MEM_CNTL) & 0x3) {
+    case 0:
+	info->mem = &sdr_128;
+	break;
+    case 1:
+	info->mem = &sdr_sgram;
+	break;
+    case 2:
+	info->mem = &ddr_sgram;
+	break;
+    default:
+	info->mem = &sdr_sgram;
+    }
+}
+
+
+static int
+aty128fbcon_switch(int con, struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    struct aty128fb_par par;
+
+    /* Do we have to save the colormap? */
+    if (fb_display[info->currcon].cmap.len)
+    	fb_get_cmap(&fb_display[info->currcon].cmap, 1,
+			aty128_getcolreg, fb);
+
+    /* set the current console */
+    info->currcon = con;
+
+    aty128_decode_var(&fb_display[con].var, &par, info);
+    aty128_set_par(&par, info);
+
+    aty128_set_dispsw(&fb_display[con], info, par.crtc.bpp,
+        par.accel_flags & FB_ACCELF_TEXT);
+
+    do_install_cmap(con, fb);
+
+    return 1;
+}
+
+
+    /*
+     *  Blank the display.
+     */
+static void
+aty128fbcon_blank(int blank, struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    u8 state = 0;
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+    if ((_machine == _MACH_Pmac) && blank)
+    	set_backlight_enable(0);
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+    if (blank & VESA_VSYNC_SUSPEND)
+	state |= 2;
+    if (blank & VESA_HSYNC_SUSPEND)
+	state |= 1;
+    if (blank & VESA_POWERDOWN)
+	state |= 4;
+
+    aty_st_8(CRTC_EXT_CNTL+1, state);
+
+#ifdef CONFIG_PMAC_PBOOK
+    if (info->chip_gen == rage_M3) {
+	aty128_set_crt_enable(info, info->crt_on && !blank);
+	aty128_set_lcd_enable(info, info->lcd_on && !blank);
+    }
+#endif	
+#ifdef CONFIG_PMAC_BACKLIGHT
+    if ((_machine == _MACH_Pmac) && !blank)
+    	set_backlight_enable(1);
+#endif /* CONFIG_PMAC_BACKLIGHT */
+}
+
+
+    /*
+     *  Read a single color register and split it into
+     *  colors/transparent. Return != 0 for invalid regno.
+     */
+static int
+aty128_getcolreg(u_int regno, u_int *red, u_int *green, u_int *blue,
+                         u_int *transp, struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *) fb;
+
+    if (regno > 255)
+	return 1;
+
+    *red = (info->palette[regno].red<<8) | info->palette[regno].red;
+    *green = (info->palette[regno].green<<8) | info->palette[regno].green;
+    *blue = (info->palette[regno].blue<<8) | info->palette[regno].blue;
+    *transp = 0;
+
+    return 0;
+}
+
+    /*
+     *  Set a single color register. The values supplied are already
+     *  rounded down to the hardware's capabilities (according to the
+     *  entries in the var structure). Return != 0 for invalid regno.
+     */
+static int
+aty128_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+                         u_int transp, struct fb_info *fb)
+{
+    struct fb_info_aty128 *info = (struct fb_info_aty128 *)fb;
+    u32 palreg;
+
+    if (regno > 255)
+	return 1;
+
+    red >>= 8;
+    green >>= 8;
+    blue >>= 8;
+    info->palette[regno].red = red;
+    info->palette[regno].green = green;
+    info->palette[regno].blue = blue;
+
+    /* Note: For now, on M3, we set palette on both heads, which may
+     * be useless. Can someone with a M3 check this ? */
+
+    /* initialize gamma ramp for hi-color+ */
+
+    if ((info->current_par.crtc.bpp > 8) && (regno == 0)) {
+        int i;
+
+        for (i=0; i<256; i++)
+            aty128_st_pal(i, i, i, i, info);
+    }
+
+    /* initialize palette */
+
+    palreg = regno;
+
+    if (info->current_par.crtc.bpp == 16)
+        palreg = regno * 8;
+
+    if (info->current_par.crtc.depth == 16) {
+        aty128_st_pal(palreg/2, info->palette[regno/2].red, green,
+                      info->palette[regno/2].blue, info);
+        green = info->palette[regno*2].green;
+    }
+
+    if (info->current_par.crtc.bpp == 8 || regno < 32)
+        aty128_st_pal(palreg, red, green, blue, info);
+        
+    if (regno < 16)
+	switch (info->current_par.crtc.depth) {
+#ifdef FBCON_HAS_CFB16
+	case 15:
+	    info->fbcon_cmap.cfb16[regno] = (regno << 10) | (regno << 5) |
+                regno;
+	    break;
+	case 16:
+	    info->fbcon_cmap.cfb16[regno] = (regno << 11) | (regno << 5) |
+                regno;
+	    break;
+#endif
+#ifdef FBCON_HAS_CFB24
+	case 24:
+	    info->fbcon_cmap.cfb24[regno] = (regno << 16) | (regno << 8) |
+		regno;
+	    break;
+#endif
+#ifdef FBCON_HAS_CFB32
+	case 32: {
+            u32 i = (regno << 8) | regno;
+            info->fbcon_cmap.cfb32[regno] = (i << 16) | i;
+	    break;
+        }
+#endif
+	}
+    return 0;
+}
+
+
+static void
+do_install_cmap(int con, struct fb_info *info)
+{
+    struct display *disp = (con < 0) ? info->disp : (fb_display + con);
+
+    if (disp->cmap.len)
+	fb_set_cmap(&disp->cmap, 1, aty128_setcolreg, info);
+    else
+	fb_set_cmap(fb_default_cmap((disp->var.bits_per_pixel==8) ? 256 :32),
+		    1, aty128_setcolreg, info);
+}
+
+#define ATY_MIRROR_LCD_ON	0x00000001
+#define ATY_MIRROR_CRT_ON	0x00000002
+
+/* out param: u32*	backlight value: 0 to 15 */
+#define FBIO_ATY128_GET_MIRROR	_IOR('@', 1, sizeof(__u32*))
+/* in param: u32*	backlight value: 0 to 15 */
+#define FBIO_ATY128_SET_MIRROR	_IOW('@', 2, sizeof(__u32*))
+
+static int aty128fb_ioctl(struct inode *inode, struct file *file, u_int cmd,
+		       u_long arg, int con, struct fb_info *info)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)info;
+    u32 value;
+    int rc;
+    
+    switch (cmd) {
+#ifdef CONFIG_PMAC_PBOOK
+    case FBIO_ATY128_SET_MIRROR:
+    	if (fb->chip_gen != rage_M3)
+    		return -EINVAL;
+    	rc = get_user(value, (__u32*)arg);
+    	if (rc)
+    		return rc;
+    	fb->lcd_on = (value & 0x01) != 0;
+    	fb->crt_on = (value & 0x02) != 0;
+    	if (!fb->crt_on && !fb->lcd_on)
+    		fb->lcd_on = 1;
+    	aty128_set_crt_enable(fb, fb->crt_on);	
+    	aty128_set_lcd_enable(fb, fb->lcd_on);	
+	break;
+    case FBIO_ATY128_GET_MIRROR:
+    	if (fb->chip_gen != rage_M3)
+    		return -EINVAL;
+	value = (fb->crt_on << 1) | fb->lcd_on;
+    	return put_user(value, (__u32*)arg);
+#endif
+    default:
+	return -EINVAL;
+    }
+    return 0;
+}
+
+#ifdef CONFIG_PMAC_BACKLIGHT
+static int backlight_conv[] = {
+	0xff, 0xc0, 0xb5, 0xaa, 0x9f, 0x94, 0x89, 0x7e,
+	0x73, 0x68, 0x5d, 0x52, 0x47, 0x3c, 0x31, 0x24
+};
+
+/* We turn off the LCD completely instead of just dimming the backlight.
+ * This provides greater power saving and the display is useless without
+ * backlight anyway
+ */
+#define BACKLIGHT_LVDS_OFF
+/* That one prevents proper CRT output with LCD off */
+#undef BACKLIGHT_DAC_OFF
+
+static int
+aty128_set_backlight_enable(int on, int level, void* data)
+{
+	struct fb_info_aty128 *info = (struct fb_info_aty128 *)data;
+	unsigned int reg = aty_ld_le32(LVDS_GEN_CNTL);
+
+	if (!info->lcd_on)
+		on = 0;
+	reg |= LVDS_BL_MOD_EN | LVDS_BLON;
+	if (on && level > BACKLIGHT_OFF) {
+		reg |= LVDS_DIGION;
+		if (!reg & LVDS_ON) {
+			reg &= ~LVDS_BLON;
+			aty_st_le32(LVDS_GEN_CNTL, reg);
+			(void)aty_ld_le32(LVDS_GEN_CNTL);
+			mdelay(10);
+			reg |= LVDS_BLON;
+			aty_st_le32(LVDS_GEN_CNTL, reg);
+		}
+		reg &= ~LVDS_BL_MOD_LEVEL_MASK;
+		reg |= (backlight_conv[level] << LVDS_BL_MOD_LEVEL_SHIFT);
+#ifdef BACKLIGHT_LVDS_OFF
+		reg |= LVDS_ON | LVDS_EN;
+		reg &= ~LVDS_DISPLAY_DIS;
+#endif
+		aty_st_le32(LVDS_GEN_CNTL, reg);
+#ifdef BACKLIGHT_DAC_OFF
+		aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) & (~DAC_PDWN));
+#endif		
+	} else {
+		reg &= ~LVDS_BL_MOD_LEVEL_MASK;
+		reg |= (backlight_conv[0] << LVDS_BL_MOD_LEVEL_SHIFT);
+#ifdef BACKLIGHT_LVDS_OFF
+		reg |= LVDS_DISPLAY_DIS;
+		aty_st_le32(LVDS_GEN_CNTL, reg);
+		(void)aty_ld_le32(LVDS_GEN_CNTL);
+		udelay(10);
+		reg &= ~(LVDS_ON | LVDS_EN | LVDS_BLON | LVDS_DIGION);
+#endif		
+		aty_st_le32(LVDS_GEN_CNTL, reg);
+#ifdef BACKLIGHT_DAC_OFF
+		aty_st_le32(DAC_CNTL, aty_ld_le32(DAC_CNTL) | DAC_PDWN);
+#endif		
+	}
+
+	return 0;
+}
+
+static int
+aty128_set_backlight_level(int level, void* data)
+{
+	return aty128_set_backlight_enable(1, level, data);
+}
+#endif /* CONFIG_PMAC_BACKLIGHT */
+
+    /*
+     *  Accelerated functions
+     */
+
+static inline void
+aty128_rectcopy(int srcx, int srcy, int dstx, int dsty,
+		u_int width, u_int height,
+		struct fb_info_aty128 *info)
+{
+    u32 save_dp_datatype, save_dp_cntl, dstval;
+
+    if (!width || !height)
+        return;
+
+    dstval = depth_to_dst(info->current_par.crtc.depth);
+    if (dstval == DST_24BPP) {
+        srcx *= 3;
+        dstx *= 3;
+        width *= 3;
+    } else if (dstval == -EINVAL) {
+        printk("aty128fb: invalid depth or RGBA\n");
+        return;
+    }
+
+    wait_for_fifo(2, info);
+    save_dp_datatype = aty_ld_le32(DP_DATATYPE);
+    save_dp_cntl     = aty_ld_le32(DP_CNTL);
+
+    wait_for_fifo(6, info);
+    aty_st_le32(SRC_Y_X, (srcy << 16) | srcx);
+    aty_st_le32(DP_MIX, ROP3_SRCCOPY | DP_SRC_RECT);
+    aty_st_le32(DP_CNTL, DST_X_LEFT_TO_RIGHT | DST_Y_TOP_TO_BOTTOM);
+    aty_st_le32(DP_DATATYPE, save_dp_datatype | dstval | SRC_DSTCOLOR);
+
+    aty_st_le32(DST_Y_X, (dsty << 16) | dstx);
+    aty_st_le32(DST_HEIGHT_WIDTH, (height << 16) | width);
+
+    info->blitter_may_be_busy = 1;
+
+    wait_for_fifo(2, info);
+    aty_st_le32(DP_DATATYPE, save_dp_datatype);
+    aty_st_le32(DP_CNTL, save_dp_cntl); 
+}
+
+
+    /*
+     * Text mode accelerated functions
+     */
+
+static void
+fbcon_aty128_bmove(struct display *p, int sy, int sx, int dy, int dx,
+			int height, int width)
+{
+    sx     *= fontwidth(p);
+    sy     *= fontheight(p);
+    dx     *= fontwidth(p);
+    dy     *= fontheight(p);
+    width  *= fontwidth(p);
+    height *= fontheight(p);
+
+    aty128_rectcopy(sx, sy, dx, dy, width, height,
+			(struct fb_info_aty128 *)p->fb_info);
+}
+
+
+#ifdef FBCON_HAS_CFB8
+static void fbcon_aty8_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb8_putc(conp, p, c, yy, xx);
+}
+
+
+static void fbcon_aty8_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb8_putcs(conp, p, s, count, yy, xx);
+}
+
+
+static void fbcon_aty8_clear_margins(struct vc_data *conp,
+                                     struct display *p, int bottom_only)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb8_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_aty128_8 = {
+    setup:		fbcon_cfb8_setup,
+    bmove:		fbcon_aty128_bmove,
+    clear:		fbcon_cfb8_clear,
+    putc:		fbcon_aty8_putc,
+    putcs:		fbcon_aty8_putcs,
+    revc:		fbcon_cfb8_revc,
+    clear_margins:	fbcon_aty8_clear_margins,
+    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+#ifdef FBCON_HAS_CFB16
+static void fbcon_aty16_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb16_putc(conp, p, c, yy, xx);
+}
+
+
+static void fbcon_aty16_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb16_putcs(conp, p, s, count, yy, xx);
+}
+
+
+static void fbcon_aty16_clear_margins(struct vc_data *conp,
+                                     struct display *p, int bottom_only)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb16_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_aty128_16 = {
+    setup:		fbcon_cfb16_setup,
+    bmove:		fbcon_aty128_bmove,
+    clear:		fbcon_cfb16_clear,
+    putc:		fbcon_aty16_putc,
+    putcs:		fbcon_aty16_putcs,
+    revc:		fbcon_cfb16_revc,
+    clear_margins:	fbcon_aty16_clear_margins,
+    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+#ifdef FBCON_HAS_CFB24
+static void fbcon_aty24_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb24_putc(conp, p, c, yy, xx);
+}
+
+
+static void fbcon_aty24_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb24_putcs(conp, p, s, count, yy, xx);
+}
+
+
+static void fbcon_aty24_clear_margins(struct vc_data *conp,
+                                     struct display *p, int bottom_only)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb24_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_aty128_24 = {
+    setup:		fbcon_cfb24_setup,
+    bmove:		fbcon_aty128_bmove,
+    clear:		fbcon_cfb24_clear,
+    putc:		fbcon_aty24_putc,
+    putcs:		fbcon_aty24_putcs,
+    revc:		fbcon_cfb24_revc,
+    clear_margins:	fbcon_aty24_clear_margins,
+    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+#ifdef FBCON_HAS_CFB32
+static void fbcon_aty32_putc(struct vc_data *conp, struct display *p,
+                            int c, int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb32_putc(conp, p, c, yy, xx);
+}
+
+
+static void fbcon_aty32_putcs(struct vc_data *conp, struct display *p,
+                             const unsigned short *s, int count,
+                             int yy, int xx)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb32_putcs(conp, p, s, count, yy, xx);
+}
+
+
+static void fbcon_aty32_clear_margins(struct vc_data *conp,
+                                     struct display *p, int bottom_only)
+{
+    struct fb_info_aty128 *fb = (struct fb_info_aty128 *)(p->fb_info);
+
+    if (fb->blitter_may_be_busy)
+        wait_for_idle(fb);
+
+    fbcon_cfb32_clear_margins(conp, p, bottom_only);
+}
+
+static struct display_switch fbcon_aty128_32 = {
+    setup:		fbcon_cfb32_setup,
+    bmove:		fbcon_aty128_bmove,
+    clear:		fbcon_cfb32_clear,
+    putc:		fbcon_aty32_putc,
+    putcs:		fbcon_aty32_putcs,
+    revc:		fbcon_cfb32_revc,
+    clear_margins:	fbcon_aty32_clear_margins,
+    fontwidthmask:	FONTWIDTH(4)|FONTWIDTH(8)|FONTWIDTH(12)|FONTWIDTH(16)
+};
+#endif
+
+#ifdef CONFIG_PMAC_PBOOK
+static void
+aty128_set_suspend(struct fb_info_aty128 *info, int suspend)
+{
+	u32	pmgt;
+	u16	pwr_command;
+
+	if (!info->pm_reg)
+		return;
+		
+	/* Set the chip into the appropriate suspend mode (we use D2,
+	 * D3 would require a complete re-initialisation of the chip,
+	 * including PCI config registers, clocks, AGP configuration, ...)
+	 */
+	if (suspend) {
+		/* Make sure CRTC2 is reset. Remove that the day we decide to
+		 * actually use CRTC2 and replace it with real code for disabling
+		 * the CRTC2 output during sleep
+		 */
+		aty_st_le32(CRTC2_GEN_CNTL, aty_ld_le32(CRTC2_GEN_CNTL) &
+			~(CRTC2_EN));
+
+		/* Set the power management mode to be PCI based */
+		pmgt = aty_ld_pll(POWER_MANAGEMENT);
+#if 0
+		pmgt &= ~PWR_MGT_MODE_MASK;
+		pmgt |= PWR_MGT_MODE_PCI | PWR_MGT_ON | PWR_MGT_TRISTATE_MEM_EN | PWR_MGT_AUTO_PWR_UP_EN;
+#else		/* Use this magic value for now */
+		pmgt = 0x0c005407;
+#endif
+		aty_st_pll(POWER_MANAGEMENT, pmgt);
+		(void)aty_ld_pll(POWER_MANAGEMENT);
+		aty_st_le32(BUS_CNTL1, 0x00000010);
+		aty_st_le32(MEM_POWER_MISC, 0x0c830000);
+		mdelay(100);
+		pci_read_config_word(info->pdev, info->pm_reg+PCI_PM_CTRL, &pwr_command);
+		/* Switch PCI power management to D2 */
+		pci_write_config_word(info->pdev, info->pm_reg+PCI_PM_CTRL,
+			(pwr_command & ~PCI_PM_CTRL_STATE_MASK) | 2);
+		pci_read_config_word(info->pdev, info->pm_reg+PCI_PM_CTRL, &pwr_command);
+	} else {
+		/* Switch back PCI power management to D0 */
+		mdelay(100);
+		pci_write_config_word(info->pdev, info->pm_reg+PCI_PM_CTRL, 0);
+		mdelay(100);
+		pci_read_config_word(info->pdev, info->pm_reg+PCI_PM_CTRL, &pwr_command);
+		mdelay(100);
+	}
+}
+
+extern struct display_switch fbcon_dummy;
+
+/*
+ * Save the contents of the frame buffer when we go to sleep,
+ * and restore it when we wake up again.
+ */
+int
+aty128_sleep_notify(struct pmu_sleep_notifier *self, int when)
+{
+	struct fb_info_aty128 *info;
+ 	int result;
+
+	result = PBOOK_SLEEP_OK;
+
+	for (info = board_list; info != NULL; info = info->next) {
+		struct fb_fix_screeninfo fix;
+		int nb;
+
+		aty128fb_get_fix(&fix, fg_console, (struct fb_info *)info);
+		nb = fb_display[fg_console].var.yres * fix.line_length;
+
+		switch (when) {
+		case PBOOK_SLEEP_REQUEST:
+			info->save_framebuffer = vmalloc(nb);
+			if (info->save_framebuffer == NULL)
+				return PBOOK_SLEEP_REFUSE;
+			break;
+		case PBOOK_SLEEP_REJECT:
+			if (info->save_framebuffer) {
+				vfree(info->save_framebuffer);
+				info->save_framebuffer = 0;
+			}
+			break;
+		case PBOOK_SLEEP_NOW:
+			if (info->currcon >= 0)
+				fb_display[info->currcon].dispsw = &fbcon_dummy;
+			
+			wait_for_idle(info);
+			aty128_reset_engine(info);
+			wait_for_idle(info);
+
+			/* Backup fb content */	
+			if (info->save_framebuffer)
+				memcpy_fromio(info->save_framebuffer,
+				       (void *)info->frame_buffer, nb);
+
+			/* Blank display and LCD */
+			aty128fbcon_blank(VESA_POWERDOWN+1, (struct fb_info *)info);
+			
+			/* Sleep the chip */
+			aty128_set_suspend(info, 1);
+
+			break;
+		case PBOOK_WAKE:
+			/* Wake the chip */
+			aty128_set_suspend(info, 0);
+			
+			aty128_reset_engine(info);
+			wait_for_idle(info);
+
+			/* Restore fb content */			
+			if (info->save_framebuffer) {
+				memcpy_toio((void *)info->frame_buffer,
+				       info->save_framebuffer, nb);
+				vfree(info->save_framebuffer);
+				info->save_framebuffer = 0;
+			}
+
+			if (info->currcon >= 0) {
+				aty128_set_dispsw(
+					&fb_display[info->currcon],
+					info,
+					info->current_par.crtc.bpp,
+					info->current_par.accel_flags & FB_ACCELF_TEXT);
+			}
+			aty128fbcon_blank(0, (struct fb_info *)info);
+			break;
+		}
+	}
+	return result;
+}
+#endif /* CONFIG_PMAC_PBOOK */
+
+#ifdef MODULE
+MODULE_AUTHOR("(c)1999-2000 Brad Douglas <brad@neruo.com>");
+MODULE_DESCRIPTION("FBDev driver for ATI Rage128 / Pro cards");
+MODULE_LICENSE("GPL");
+MODULE_PARM(noaccel, "i");
+MODULE_PARM_DESC(noaccel, "Disable hardware acceleration (0 or 1=disabled) (default=0)");
+MODULE_PARM(font, "s");
+MODULE_PARM_DESC(font, "Specify one of the compiled-in fonts (default=none)");
+MODULE_PARM(mode, "s");
+MODULE_PARM_DESC(mode, "Specify resolution as \"<xres>x<yres>[-<bpp>][@<refresh>]\" ");
+#ifdef CONFIG_MTRR
+MODULE_PARM(nomtrr, "i");
+MODULE_PARM_DESC(nomtrr, "Disable MTRR support (0 or 1=disabled) (default=0)");
+#endif
+
+int __init
+init_module(void)
+{
+    if (noaccel) {
+        noaccel = 1;
+        printk(KERN_INFO "aty128fb: Parameter NOACCEL set\n");
+    }
+    if (font) {
+        strncpy(fontname, font, sizeof(fontname)-1);
+        printk(KERN_INFO "aty128fb: Parameter FONT set to %s\n", font);
+    }
+    if (mode) {
+        mode_option = mode;
+        printk(KERN_INFO "aty128fb: Parameter MODE set to %s\n", mode);
+    }
+#ifdef CONFIG_MTRR
+    if (nomtrr) {
+        mtrr = 0;
+        printk(KERN_INFO "aty128fb: Parameter NOMTRR set\n");
+    }
+#endif
+    
+    aty128fb_init();
+    return 0;
+}
+
+void __exit
+cleanup_module(void)
+{
+    struct fb_info_aty128 *info = board_list;
+
+    while (board_list) {
+        info = board_list;
+        board_list = board_list->next;
+
+        unregister_framebuffer(&info->fb_info);
+#ifdef CONFIG_MTRR
+        if (info->mtrr.vram_valid)
+            mtrr_del(info->mtrr.vram, info->frame_buffer_phys,
+                     info->vram_size);
+#endif /* CONFIG_MTRR */
+        iounmap(info->regbase);
+        iounmap(info->frame_buffer);
+
+        release_mem_region(pci_resource_start(info->pdev, 0),
+                           pci_resource_len(info->pdev, 0));
+        release_mem_region(pci_resource_start(info->pdev, 1),
+                           pci_resource_len(info->pdev, 1));
+        release_mem_region(pci_resource_start(info->pdev, 2),
+                           pci_resource_len(info->pdev, 2));
+
+        kfree(info);
+    }
+}
+#endif /* MODULE */