/* * * BRIEF MODULE DESCRIPTION * Alchemy Pb1000 board setup. * * Copyright 2000 MontaVista Software Inc. * Author: MontaVista Software, Inc. * ppopov@mvista.com or source@mvista.com * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #ifdef CONFIG_USB_OHCI // Enable the workaround for the OHCI DoneHead // register corruption problem. #define CONFIG_AU1000_OHCI_FIX #endif #if defined(CONFIG_AU1000_SERIAL_CONSOLE) extern void console_setup(char *, int *); char serial_console[20]; #endif #ifdef CONFIG_BLK_DEV_INITRD extern unsigned long initrd_start, initrd_end; extern void * __rd_start, * __rd_end; #endif #ifdef CONFIG_BLK_DEV_IDE extern struct ide_ops std_ide_ops; extern struct ide_ops *ide_ops; #endif #ifdef CONFIG_RTC extern struct rtc_ops pb1500_rtc_ops; #endif void (*__wbflush) (void); extern char * __init prom_getcmdline(void); extern void au1000_restart(char *); extern void au1000_halt(void); extern void au1000_power_off(void); extern struct resource ioport_resource; extern struct resource iomem_resource; void au1500_wbflush(void) { __asm__ volatile ("sync"); } void __init au1500_setup(void) { char *argptr; u32 pin_func, static_cfg0; u32 sys_freqctrl, sys_clksrc; argptr = prom_getcmdline(); /* NOTE: The memory map is established by YAMON 2.08+ */ /* Various early Au1500 Errata corrected by this */ set_cp0_config(1<<19); /* Config[OD] */ #ifdef CONFIG_AU1000_SERIAL_CONSOLE if ((argptr = strstr(argptr, "console=")) == NULL) { argptr = prom_getcmdline(); strcat(argptr, " console=ttyS0,115200"); } #endif #ifdef CONFIG_SOUND_AU1000 strcat(argptr, " au1000_audio=vra"); argptr = prom_getcmdline(); #endif __wbflush = au1500_wbflush; _machine_restart = au1000_restart; _machine_halt = au1000_halt; _machine_power_off = au1000_power_off; // IO/MEM resources. set_io_port_base(0); ioport_resource.start = 0x10000000; ioport_resource.end = 0xffffffff; iomem_resource.start = 0x10000000; iomem_resource.end = 0xffffffff; #ifdef CONFIG_BLK_DEV_INITRD ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0); initrd_start = (unsigned long)&__rd_start; initrd_end = (unsigned long)&__rd_end; #endif // set AUX clock to 12MHz * 8 = 96 MHz writel(8, SYS_AUXPLL); outl(0, SYS_PINSTATERD); udelay(100); #if defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1000_USB_DEVICE) #ifdef CONFIG_USB_OHCI if ((argptr = strstr(argptr, "usb_ohci=")) == NULL) { char usb_args[80]; argptr = prom_getcmdline(); memset(usb_args, 0, sizeof(usb_args)); sprintf(usb_args, " usb_ohci=base:0x%x,len:0x%x,irq:%d", USB_OHCI_BASE, USB_OHCI_LEN, AU1000_USB_HOST_INT); strcat(argptr, usb_args); } #endif /* zero and disable FREQ2 */ sys_freqctrl = readl(SYS_FREQCTRL0); sys_freqctrl &= ~0xFFF00000; writel(sys_freqctrl, SYS_FREQCTRL0); /* zero and disable USBH/USBD clocks */ sys_clksrc = readl(SYS_CLKSRC); sys_clksrc &= ~0x00007FE0; writel(sys_clksrc, SYS_CLKSRC); sys_freqctrl = readl(SYS_FREQCTRL0); sys_freqctrl &= ~0xFFF00000; sys_clksrc = readl(SYS_CLKSRC); sys_clksrc &= ~0x00007FE0; // FREQ2 = aux/2 = 48 MHz sys_freqctrl |= ((0<<22) | (1<<21) | (1<<20)); writel(sys_freqctrl, SYS_FREQCTRL0); /* * Route 48MHz FREQ2 into USB Host and/or Device */ #ifdef CONFIG_USB_OHCI sys_clksrc |= ((4<<12) | (0<<11) | (0<<10)); #endif #ifdef CONFIG_AU1000_USB_DEVICE sys_clksrc |= ((4<<7) | (0<<6) | (0<<5)); #endif writel(sys_clksrc, SYS_CLKSRC); pin_func = readl(SYS_PINFUNC) & (u32)(~0x8000); #ifndef CONFIG_AU1000_USB_DEVICE // 2nd USB port is USB host pin_func |= 0x8000; #endif writel(pin_func, SYS_PINFUNC); #endif // defined (CONFIG_USB_OHCI) || defined (CONFIG_AU1000_USB_DEVICE) #ifdef CONFIG_USB_OHCI // enable host controller and wait for reset done writel(0x08, USB_HOST_CONFIG); udelay(1000); writel(0x0c, USB_HOST_CONFIG); udelay(1000); readl(USB_HOST_CONFIG); while (!(readl(USB_HOST_CONFIG) & 0x10)) ; readl(USB_HOST_CONFIG); #endif #ifdef CONFIG_FB conswitchp = &dummy_con; #endif #ifdef CONFIG_FB_E1356 if ((argptr = strstr(argptr, "video=")) == NULL) { argptr = prom_getcmdline(); strcat(argptr, " video=e1356fb:system:pb1500,mmunalign:1"); } #endif // CONFIG_FB_E1356 #ifndef CONFIG_SERIAL_NONSTANDARD /* don't touch the default serial console */ writel(0, UART0_ADDR + UART_CLK); #endif writel(0, UART3_ADDR + UART_CLK); #ifdef CONFIG_BLK_DEV_IDE ide_ops = &std_ide_ops; #endif #ifdef CONFIG_PCI // Setup PCI bus controller writel(0, Au1500_PCI_CMEM); writel(0x00003fff, Au1500_CFG_BASE); writel(0xf, Au1500_PCI_CFG); writel(0xf0000000, Au1500_PCI_MWMASK_DEV); writel(0, Au1500_PCI_MWBASE_REV_CCL); writel(0x02a00356, Au1500_PCI_STATCMD); writel(0x00003c04, Au1500_PCI_HDRTYPE); writel(0x00000008, Au1500_PCI_MBAR); au_sync(); #endif while (readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_E0S); writel(SYS_CNTRL_E0 | SYS_CNTRL_EN0, SYS_COUNTER_CNTRL); au_sync(); while (readl(SYS_COUNTER_CNTRL) & SYS_CNTRL_T0S); outl(0, SYS_TOYTRIM); /* Enable BCLK switching */ writel(0x00000060, 0xb190003c); #ifdef CONFIG_RTC rtc_ops = &pb1500_rtc_ops; // Enable the RTC if not already enabled if (!(readb(0xac000028) & 0x20)) { writeb(readb(0xac000028) | 0x20, 0xac000028); } // Put the clock in BCD mode if (readb(0xac00002C) & 0x4) { /* reg B */ writeb(readb(0xac00002c) & ~0x4, 0xac00002c); au_sync(); } #endif printk("Alchemy Semi Pb1500 Board\n"); printk("Au1500/Pb1500 port (C) 2001 MontaVista Software, Inc. (source@mvista.com)\n"); }