/* * Toshiba rbtx4927 specific setup * * Author: MontaVista Software, Inc. * source@mvista.com * * Copyright 2001-2002 MontaVista Software Inc. * * Copyright (C) 1996, 97, 2001, 04 Ralf Baechle (ralf@linux-mips.org) * Copyright (C) 2000 RidgeRun, Inc. * Author: RidgeRun, Inc. * glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com * * Copyright 2001 MontaVista Software Inc. * Author: jsun@mvista.com or jsun@junsun.net * * Copyright 2002 MontaVista Software Inc. * Author: Michael Pruznick, michael_pruznick@mvista.com * * Copyright (C) 2000-2001 Toshiba Corporation * * Copyright (C) 2004 MontaVista Software Inc. * Author: Manish Lachwani, mlachwani@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 /* for TX4937 */ #ifdef CONFIG_PCI static void __init tx4927_pci_setup(void) { int extarb = !(__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB); struct pci_controller *c = &txx9_primary_pcic; register_pci_controller(c); if (__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66) txx9_pci_option = (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) | TXX9_PCI_OPT_CLK_66; /* already configured */ /* Reset PCI Bus */ writeb(1, rbtx4927_pcireset_addr); /* Reset PCIC */ txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST); if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) == TXX9_PCI_OPT_CLK_66) tx4927_pciclk66_setup(); mdelay(10); /* clear PCIC reset */ txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST); writeb(0, rbtx4927_pcireset_addr); iob(); tx4927_report_pciclk(); tx4927_pcic_setup(tx4927_pcicptr, c, extarb); if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) == TXX9_PCI_OPT_CLK_AUTO && txx9_pci66_check(c, 0, 0)) { /* Reset PCI Bus */ writeb(1, rbtx4927_pcireset_addr); /* Reset PCIC */ txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST); tx4927_pciclk66_setup(); mdelay(10); /* clear PCIC reset */ txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST); writeb(0, rbtx4927_pcireset_addr); iob(); /* Reinitialize PCIC */ tx4927_report_pciclk(); tx4927_pcic_setup(tx4927_pcicptr, c, extarb); } tx4927_setup_pcierr_irq(); } static void __init tx4937_pci_setup(void) { int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB); struct pci_controller *c = &txx9_primary_pcic; register_pci_controller(c); if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66) txx9_pci_option = (txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) | TXX9_PCI_OPT_CLK_66; /* already configured */ /* Reset PCI Bus */ writeb(1, rbtx4927_pcireset_addr); /* Reset PCIC */ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST); if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) == TXX9_PCI_OPT_CLK_66) tx4938_pciclk66_setup(); mdelay(10); /* clear PCIC reset */ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST); writeb(0, rbtx4927_pcireset_addr); iob(); tx4938_report_pciclk(); tx4927_pcic_setup(tx4938_pcicptr, c, extarb); if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) == TXX9_PCI_OPT_CLK_AUTO && txx9_pci66_check(c, 0, 0)) { /* Reset PCI Bus */ writeb(1, rbtx4927_pcireset_addr); /* Reset PCIC */ txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST); tx4938_pciclk66_setup(); mdelay(10); /* clear PCIC reset */ txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST); writeb(0, rbtx4927_pcireset_addr); iob(); /* Reinitialize PCIC */ tx4938_report_pciclk(); tx4927_pcic_setup(tx4938_pcicptr, c, extarb); } tx4938_setup_pcierr_irq(); } static void __init rbtx4927_arch_init(void) { tx4927_pci_setup(); } static void __init rbtx4937_arch_init(void) { tx4937_pci_setup(); } #else #define rbtx4927_arch_init NULL #define rbtx4937_arch_init NULL #endif /* CONFIG_PCI */ static void toshiba_rbtx4927_restart(char *command) { /* enable the s/w reset register */ writeb(1, rbtx4927_softresetlock_addr); /* wait for enable to be seen */ while (!(readb(rbtx4927_softresetlock_addr) & 1)) ; /* do a s/w reset */ writeb(1, rbtx4927_softreset_addr); /* fallback */ (*_machine_halt)(); } static void __init rbtx4927_clock_init(void); static void __init rbtx4937_clock_init(void); static void __init rbtx4927_mem_setup(void) { if (TX4927_REV_PCODE() == 0x4927) { rbtx4927_clock_init(); tx4927_setup(); } else { rbtx4937_clock_init(); tx4938_setup(); } _machine_restart = toshiba_rbtx4927_restart; #ifdef CONFIG_PCI txx9_alloc_pci_controller(&txx9_primary_pcic, RBTX4927_PCIMEM, RBTX4927_PCIMEM_SIZE, RBTX4927_PCIIO, RBTX4927_PCIIO_SIZE); txx9_board_pcibios_setup = tx4927_pcibios_setup; #else set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET); #endif /* TX4927-SIO DTR on (PIO[15]) */ gpio_request(15, "sio-dtr"); gpio_direction_output(15, 1); tx4927_sio_init(0, 0); } static void __init rbtx4927_clock_init(void) { /* * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz. * * For TX4927: * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1). * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5) * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3) * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5) * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6) * i.e. S9[3]: ON (83MHz), OFF (100MHz) */ switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIDIVMODE_MASK) { case TX4927_CCFG_PCIDIVMODE_2_5: case TX4927_CCFG_PCIDIVMODE_5: txx9_cpu_clock = 166666666; /* 166MHz */ break; default: txx9_cpu_clock = 200000000; /* 200MHz */ } } static void __init rbtx4937_clock_init(void) { /* * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz. * * For TX4937: * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1) * PCIDIVMODE[10] is 0. * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8) * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4) * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9) * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5) * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10) * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5) */ switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIDIVMODE_MASK) { case TX4938_CCFG_PCIDIVMODE_8: case TX4938_CCFG_PCIDIVMODE_4: txx9_cpu_clock = 266666666; /* 266MHz */ break; case TX4938_CCFG_PCIDIVMODE_9: case TX4938_CCFG_PCIDIVMODE_4_5: txx9_cpu_clock = 300000000; /* 300MHz */ break; default: txx9_cpu_clock = 333333333; /* 333MHz */ } } static void __init rbtx4927_time_init(void) { tx4927_time_init(0); } static void __init toshiba_rbtx4927_rtc_init(void) { struct resource res = { .start = RBTX4927_BRAMRTC_BASE - IO_BASE, .end = RBTX4927_BRAMRTC_BASE - IO_BASE + 0x800 - 1, .flags = IORESOURCE_MEM, }; platform_device_register_simple("rtc-ds1742", -1, &res, 1); } static void __init rbtx4927_ne_init(void) { struct resource res[] = { { .start = RBTX4927_RTL_8019_BASE, .end = RBTX4927_RTL_8019_BASE + 0x20 - 1, .flags = IORESOURCE_IO, }, { .start = RBTX4927_RTL_8019_IRQ, .flags = IORESOURCE_IRQ, } }; platform_device_register_simple("ne", -1, res, ARRAY_SIZE(res)); } static void __init rbtx4927_mtd_init(void) { int i; for (i = 0; i < 2; i++) tx4927_mtd_init(i); } static void __init rbtx4927_gpioled_init(void) { static struct gpio_led leds[] = { { .name = "gpioled:green:0", .gpio = 0, .active_low = 1, }, { .name = "gpioled:green:1", .gpio = 1, .active_low = 1, }, }; static struct gpio_led_platform_data pdata = { .num_leds = ARRAY_SIZE(leds), .leds = leds, }; struct platform_device *pdev = platform_device_alloc("leds-gpio", 0); if (!pdev) return; pdev->dev.platform_data = &pdata; if (platform_device_add(pdev)) platform_device_put(pdev); } static void __init rbtx4927_device_init(void) { toshiba_rbtx4927_rtc_init(); rbtx4927_ne_init(); tx4927_wdt_init(); rbtx4927_mtd_init(); if (TX4927_REV_PCODE() == 0x4927) { tx4927_dmac_init(2); tx4927_aclc_init(0, 1); } else { tx4938_dmac_init(0, 2); tx4938_aclc_init(); } platform_device_register_simple("txx9aclc-generic", -1, NULL, 0); txx9_iocled_init(RBTX4927_LED_ADDR - IO_BASE, -1, 3, 1, "green", NULL); rbtx4927_gpioled_init(); } struct txx9_board_vec rbtx4927_vec __initdata = { .system = "Toshiba RBTX4927", .prom_init = rbtx4927_prom_init, .mem_setup = rbtx4927_mem_setup, .irq_setup = rbtx4927_irq_setup, .time_init = rbtx4927_time_init, .device_init = rbtx4927_device_init, .arch_init = rbtx4927_arch_init, #ifdef CONFIG_PCI .pci_map_irq = rbtx4927_pci_map_irq, #endif }; struct txx9_board_vec rbtx4937_vec __initdata = { .system = "Toshiba RBTX4937", .prom_init = rbtx4927_prom_init, .mem_setup = rbtx4927_mem_setup, .irq_setup = rbtx4927_irq_setup, .time_init = rbtx4927_time_init, .device_init = rbtx4927_device_init, .arch_init = rbtx4937_arch_init, #ifdef CONFIG_PCI .pci_map_irq = rbtx4927_pci_map_irq, #endif };