| /* linux/arch/arm/mach-s3c2440/mach-osiris.c |
| * |
| * Copyright (c) 2005-2008 Simtec Electronics |
| * http://armlinux.simtec.co.uk/ |
| * Ben Dooks <ben@simtec.co.uk> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| #include <linux/interrupt.h> |
| #include <linux/list.h> |
| #include <linux/timer.h> |
| #include <linux/init.h> |
| #include <linux/gpio.h> |
| #include <linux/device.h> |
| #include <linux/syscore_ops.h> |
| #include <linux/serial_core.h> |
| #include <linux/clk.h> |
| #include <linux/i2c.h> |
| #include <linux/io.h> |
| |
| #include <linux/i2c/tps65010.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/irq.h> |
| |
| #include <mach/osiris-map.h> |
| #include <mach/osiris-cpld.h> |
| |
| #include <mach/hardware.h> |
| #include <asm/irq.h> |
| #include <asm/mach-types.h> |
| |
| #include <plat/cpu-freq.h> |
| #include <plat/regs-serial.h> |
| #include <mach/regs-gpio.h> |
| #include <mach/regs-mem.h> |
| #include <mach/regs-lcd.h> |
| #include <plat/nand.h> |
| #include <plat/iic.h> |
| |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/nand.h> |
| #include <linux/mtd/nand_ecc.h> |
| #include <linux/mtd/partitions.h> |
| |
| #include <plat/gpio-cfg.h> |
| #include <plat/clock.h> |
| #include <plat/devs.h> |
| #include <plat/cpu.h> |
| |
| /* onboard perihperal map */ |
| |
| static struct map_desc osiris_iodesc[] __initdata = { |
| /* ISA IO areas (may be over-written later) */ |
| |
| { |
| .virtual = (u32)S3C24XX_VA_ISA_BYTE, |
| .pfn = __phys_to_pfn(S3C2410_CS5), |
| .length = SZ_16M, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = (u32)S3C24XX_VA_ISA_WORD, |
| .pfn = __phys_to_pfn(S3C2410_CS5), |
| .length = SZ_16M, |
| .type = MT_DEVICE, |
| }, |
| |
| /* CPLD control registers */ |
| |
| { |
| .virtual = (u32)OSIRIS_VA_CTRL0, |
| .pfn = __phys_to_pfn(OSIRIS_PA_CTRL0), |
| .length = SZ_16K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = (u32)OSIRIS_VA_CTRL1, |
| .pfn = __phys_to_pfn(OSIRIS_PA_CTRL1), |
| .length = SZ_16K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = (u32)OSIRIS_VA_CTRL2, |
| .pfn = __phys_to_pfn(OSIRIS_PA_CTRL2), |
| .length = SZ_16K, |
| .type = MT_DEVICE, |
| }, { |
| .virtual = (u32)OSIRIS_VA_IDREG, |
| .pfn = __phys_to_pfn(OSIRIS_PA_IDREG), |
| .length = SZ_16K, |
| .type = MT_DEVICE, |
| }, |
| }; |
| |
| #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK |
| #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB |
| #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE |
| |
| static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = { |
| [0] = { |
| .hwport = 0, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2, |
| }, |
| [1] = { |
| .hwport = 1, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2, |
| }, |
| [2] = { |
| .hwport = 2, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2, |
| } |
| }; |
| |
| /* NAND Flash on Osiris board */ |
| |
| static int external_map[] = { 2 }; |
| static int chip0_map[] = { 0 }; |
| static int chip1_map[] = { 1 }; |
| |
| static struct mtd_partition __initdata osiris_default_nand_part[] = { |
| [0] = { |
| .name = "Boot Agent", |
| .size = SZ_16K, |
| .offset = 0, |
| }, |
| [1] = { |
| .name = "/boot", |
| .size = SZ_4M - SZ_16K, |
| .offset = SZ_16K, |
| }, |
| [2] = { |
| .name = "user1", |
| .offset = SZ_4M, |
| .size = SZ_32M - SZ_4M, |
| }, |
| [3] = { |
| .name = "user2", |
| .offset = SZ_32M, |
| .size = MTDPART_SIZ_FULL, |
| } |
| }; |
| |
| static struct mtd_partition __initdata osiris_default_nand_part_large[] = { |
| [0] = { |
| .name = "Boot Agent", |
| .size = SZ_128K, |
| .offset = 0, |
| }, |
| [1] = { |
| .name = "/boot", |
| .size = SZ_4M - SZ_128K, |
| .offset = SZ_128K, |
| }, |
| [2] = { |
| .name = "user1", |
| .offset = SZ_4M, |
| .size = SZ_32M - SZ_4M, |
| }, |
| [3] = { |
| .name = "user2", |
| .offset = SZ_32M, |
| .size = MTDPART_SIZ_FULL, |
| } |
| }; |
| |
| /* the Osiris has 3 selectable slots for nand-flash, the two |
| * on-board chip areas, as well as the external slot. |
| * |
| * Note, there is no current hot-plug support for the External |
| * socket. |
| */ |
| |
| static struct s3c2410_nand_set __initdata osiris_nand_sets[] = { |
| [1] = { |
| .name = "External", |
| .nr_chips = 1, |
| .nr_map = external_map, |
| .options = NAND_SCAN_SILENT_NODEV, |
| .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
| .partitions = osiris_default_nand_part, |
| }, |
| [0] = { |
| .name = "chip0", |
| .nr_chips = 1, |
| .nr_map = chip0_map, |
| .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
| .partitions = osiris_default_nand_part, |
| }, |
| [2] = { |
| .name = "chip1", |
| .nr_chips = 1, |
| .nr_map = chip1_map, |
| .options = NAND_SCAN_SILENT_NODEV, |
| .nr_partitions = ARRAY_SIZE(osiris_default_nand_part), |
| .partitions = osiris_default_nand_part, |
| }, |
| }; |
| |
| static void osiris_nand_select(struct s3c2410_nand_set *set, int slot) |
| { |
| unsigned int tmp; |
| |
| slot = set->nr_map[slot] & 3; |
| |
| pr_debug("osiris_nand: selecting slot %d (set %p,%p)\n", |
| slot, set, set->nr_map); |
| |
| tmp = __raw_readb(OSIRIS_VA_CTRL0); |
| tmp &= ~OSIRIS_CTRL0_NANDSEL; |
| tmp |= slot; |
| |
| pr_debug("osiris_nand: ctrl0 now %02x\n", tmp); |
| |
| __raw_writeb(tmp, OSIRIS_VA_CTRL0); |
| } |
| |
| static struct s3c2410_platform_nand __initdata osiris_nand_info = { |
| .tacls = 25, |
| .twrph0 = 60, |
| .twrph1 = 60, |
| .nr_sets = ARRAY_SIZE(osiris_nand_sets), |
| .sets = osiris_nand_sets, |
| .select_chip = osiris_nand_select, |
| }; |
| |
| /* PCMCIA control and configuration */ |
| |
| static struct resource osiris_pcmcia_resource[] = { |
| [0] = { |
| .start = 0x0f000000, |
| .end = 0x0f100000, |
| .flags = IORESOURCE_MEM, |
| }, |
| [1] = { |
| .start = 0x0c000000, |
| .end = 0x0c100000, |
| .flags = IORESOURCE_MEM, |
| } |
| }; |
| |
| static struct platform_device osiris_pcmcia = { |
| .name = "osiris-pcmcia", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(osiris_pcmcia_resource), |
| .resource = osiris_pcmcia_resource, |
| }; |
| |
| /* Osiris power management device */ |
| |
| #ifdef CONFIG_PM |
| static unsigned char pm_osiris_ctrl0; |
| |
| static int osiris_pm_suspend(void) |
| { |
| unsigned int tmp; |
| |
| pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0); |
| tmp = pm_osiris_ctrl0 & ~OSIRIS_CTRL0_NANDSEL; |
| |
| /* ensure correct NAND slot is selected on resume */ |
| if ((pm_osiris_ctrl0 & OSIRIS_CTRL0_BOOT_INT) == 0) |
| tmp |= 2; |
| |
| __raw_writeb(tmp, OSIRIS_VA_CTRL0); |
| |
| /* ensure that an nRESET is not generated on resume. */ |
| s3c2410_gpio_setpin(S3C2410_GPA(21), 1); |
| s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPIO_OUTPUT); |
| |
| return 0; |
| } |
| |
| static void osiris_pm_resume(void) |
| { |
| if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8) |
| __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1); |
| |
| __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0); |
| |
| s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT); |
| } |
| |
| #else |
| #define osiris_pm_suspend NULL |
| #define osiris_pm_resume NULL |
| #endif |
| |
| static struct syscore_ops osiris_pm_syscore_ops = { |
| .suspend = osiris_pm_suspend, |
| .resume = osiris_pm_resume, |
| }; |
| |
| /* Link for DVS driver to TPS65011 */ |
| |
| static void osiris_tps_release(struct device *dev) |
| { |
| /* static device, do not need to release anything */ |
| } |
| |
| static struct platform_device osiris_tps_device = { |
| .name = "osiris-dvs", |
| .id = -1, |
| .dev.release = osiris_tps_release, |
| }; |
| |
| static int osiris_tps_setup(struct i2c_client *client, void *context) |
| { |
| osiris_tps_device.dev.parent = &client->dev; |
| return platform_device_register(&osiris_tps_device); |
| } |
| |
| static int osiris_tps_remove(struct i2c_client *client, void *context) |
| { |
| platform_device_unregister(&osiris_tps_device); |
| return 0; |
| } |
| |
| static struct tps65010_board osiris_tps_board = { |
| .base = -1, /* GPIO can go anywhere at the moment */ |
| .setup = osiris_tps_setup, |
| .teardown = osiris_tps_remove, |
| }; |
| |
| /* I2C devices fitted. */ |
| |
| static struct i2c_board_info osiris_i2c_devs[] __initdata = { |
| { |
| I2C_BOARD_INFO("tps65011", 0x48), |
| .irq = IRQ_EINT20, |
| .platform_data = &osiris_tps_board, |
| }, |
| }; |
| |
| /* Standard Osiris devices */ |
| |
| static struct platform_device *osiris_devices[] __initdata = { |
| &s3c_device_i2c0, |
| &s3c_device_wdt, |
| &s3c_device_nand, |
| &osiris_pcmcia, |
| }; |
| |
| static struct clk *osiris_clocks[] __initdata = { |
| &s3c24xx_dclk0, |
| &s3c24xx_dclk1, |
| &s3c24xx_clkout0, |
| &s3c24xx_clkout1, |
| &s3c24xx_uclk, |
| }; |
| |
| static struct s3c_cpufreq_board __initdata osiris_cpufreq = { |
| .refresh = 7800, /* refresh period is 7.8usec */ |
| .auto_io = 1, |
| .need_io = 1, |
| }; |
| |
| static void __init osiris_map_io(void) |
| { |
| unsigned long flags; |
| |
| /* initialise the clocks */ |
| |
| s3c24xx_dclk0.parent = &clk_upll; |
| s3c24xx_dclk0.rate = 12*1000*1000; |
| |
| s3c24xx_dclk1.parent = &clk_upll; |
| s3c24xx_dclk1.rate = 24*1000*1000; |
| |
| s3c24xx_clkout0.parent = &s3c24xx_dclk0; |
| s3c24xx_clkout1.parent = &s3c24xx_dclk1; |
| |
| s3c24xx_uclk.parent = &s3c24xx_clkout1; |
| |
| s3c24xx_register_clocks(osiris_clocks, ARRAY_SIZE(osiris_clocks)); |
| |
| s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc)); |
| s3c24xx_init_clocks(0); |
| s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs)); |
| |
| /* check for the newer revision boards with large page nand */ |
| |
| if ((__raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK) >= 4) { |
| printk(KERN_INFO "OSIRIS-B detected (revision %d)\n", |
| __raw_readb(OSIRIS_VA_IDREG) & OSIRIS_ID_REVMASK); |
| osiris_nand_sets[0].partitions = osiris_default_nand_part_large; |
| osiris_nand_sets[0].nr_partitions = ARRAY_SIZE(osiris_default_nand_part_large); |
| } else { |
| /* write-protect line to the NAND */ |
| s3c2410_gpio_setpin(S3C2410_GPA(0), 1); |
| } |
| |
| /* fix bus configuration (nBE settings wrong on ABLE pre v2.20) */ |
| |
| local_irq_save(flags); |
| __raw_writel(__raw_readl(S3C2410_BWSCON) | S3C2410_BWSCON_ST1 | S3C2410_BWSCON_ST2 | S3C2410_BWSCON_ST3 | S3C2410_BWSCON_ST4 | S3C2410_BWSCON_ST5, S3C2410_BWSCON); |
| local_irq_restore(flags); |
| } |
| |
| static void __init osiris_init(void) |
| { |
| register_syscore_ops(&osiris_pm_syscore_ops); |
| |
| s3c_i2c0_set_platdata(NULL); |
| s3c_nand_set_platdata(&osiris_nand_info); |
| |
| s3c_cpufreq_setboard(&osiris_cpufreq); |
| |
| i2c_register_board_info(0, osiris_i2c_devs, |
| ARRAY_SIZE(osiris_i2c_devs)); |
| |
| platform_add_devices(osiris_devices, ARRAY_SIZE(osiris_devices)); |
| }; |
| |
| MACHINE_START(OSIRIS, "Simtec-OSIRIS") |
| /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ |
| .atag_offset = 0x100, |
| .map_io = osiris_map_io, |
| .init_irq = s3c24xx_init_irq, |
| .init_machine = osiris_init, |
| .timer = &s3c24xx_timer, |
| MACHINE_END |