f6361c6b38
The restart-handler series from Guenter Roeck got accepted recently and implements among other things also the restart handler in the samsung watchdog driver and where applicable in the clock drivers. So there is no need for having the restart callbacks in s3c24xx boards anymore. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
595 lines
14 KiB
C
595 lines
14 KiB
C
/* linux/arch/arm/mach-s3c2410/mach-bast.c
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*
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* Copyright 2003-2008 Simtec Electronics
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* Ben Dooks <ben@simtec.co.uk>
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*
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* http://www.simtec.co.uk/products/EB2410ITX/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/list.h>
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#include <linux/timer.h>
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#include <linux/init.h>
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#include <linux/gpio.h>
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#include <linux/syscore_ops.h>
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#include <linux/serial_core.h>
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#include <linux/serial_s3c.h>
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#include <linux/platform_device.h>
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#include <linux/dm9000.h>
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#include <linux/ata_platform.h>
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#include <linux/i2c.h>
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#include <linux/io.h>
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#include <linux/serial_8250.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/nand.h>
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#include <linux/mtd/nand_ecc.h>
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#include <linux/mtd/partitions.h>
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#include <linux/platform_data/asoc-s3c24xx_simtec.h>
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#include <linux/platform_data/hwmon-s3c.h>
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#include <linux/platform_data/i2c-s3c2410.h>
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#include <linux/platform_data/mtd-nand-s3c2410.h>
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#include <net/ax88796.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/mach-types.h>
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#include <mach/fb.h>
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#include <mach/hardware.h>
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#include <mach/regs-gpio.h>
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#include <mach/regs-lcd.h>
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#include <mach/gpio-samsung.h>
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#include <plat/cpu.h>
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#include <plat/cpu-freq.h>
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#include <plat/devs.h>
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#include <plat/gpio-cfg.h>
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#include <plat/samsung-time.h>
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#include "bast.h"
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#include "common.h"
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#include "simtec.h"
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#define COPYRIGHT ", Copyright 2004-2008 Simtec Electronics"
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/* macros for virtual address mods for the io space entries */
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#define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
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#define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
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#define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
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#define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
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/* macros to modify the physical addresses for io space */
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#define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
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#define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
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#define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
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#define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
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static struct map_desc bast_iodesc[] __initdata = {
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/* ISA IO areas */
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{
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.virtual = (u32)S3C24XX_VA_ISA_BYTE,
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.pfn = PA_CS2(BAST_PA_ISAIO),
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.length = SZ_16M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)S3C24XX_VA_ISA_WORD,
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.pfn = PA_CS3(BAST_PA_ISAIO),
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.length = SZ_16M,
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.type = MT_DEVICE,
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},
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/* bast CPLD control registers, and external interrupt controls */
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{
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.virtual = (u32)BAST_VA_CTRL1,
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.pfn = __phys_to_pfn(BAST_PA_CTRL1),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)BAST_VA_CTRL2,
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.pfn = __phys_to_pfn(BAST_PA_CTRL2),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)BAST_VA_CTRL3,
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.pfn = __phys_to_pfn(BAST_PA_CTRL3),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)BAST_VA_CTRL4,
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.pfn = __phys_to_pfn(BAST_PA_CTRL4),
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.length = SZ_1M,
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.type = MT_DEVICE,
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},
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/* PC104 IRQ mux */
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{
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.virtual = (u32)BAST_VA_PC104_IRQREQ,
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.pfn = __phys_to_pfn(BAST_PA_PC104_IRQREQ),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)BAST_VA_PC104_IRQRAW,
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.pfn = __phys_to_pfn(BAST_PA_PC104_IRQRAW),
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.length = SZ_1M,
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.type = MT_DEVICE,
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}, {
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.virtual = (u32)BAST_VA_PC104_IRQMASK,
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.pfn = __phys_to_pfn(BAST_PA_PC104_IRQMASK),
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.length = SZ_1M,
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.type = MT_DEVICE,
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},
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/* peripheral space... one for each of fast/slow/byte/16bit */
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/* note, ide is only decoded in word space, even though some registers
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* are only 8bit */
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/* slow, byte */
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{ VA_C2(BAST_VA_ISAIO), PA_CS2(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
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{ VA_C2(BAST_VA_ISAMEM), PA_CS2(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
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{ VA_C2(BAST_VA_SUPERIO), PA_CS2(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
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/* slow, word */
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{ VA_C3(BAST_VA_ISAIO), PA_CS3(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
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{ VA_C3(BAST_VA_ISAMEM), PA_CS3(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
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{ VA_C3(BAST_VA_SUPERIO), PA_CS3(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
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/* fast, byte */
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{ VA_C4(BAST_VA_ISAIO), PA_CS4(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
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{ VA_C4(BAST_VA_ISAMEM), PA_CS4(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
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{ VA_C4(BAST_VA_SUPERIO), PA_CS4(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
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/* fast, word */
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{ VA_C5(BAST_VA_ISAIO), PA_CS5(BAST_PA_ISAIO), SZ_16M, MT_DEVICE },
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{ VA_C5(BAST_VA_ISAMEM), PA_CS5(BAST_PA_ISAMEM), SZ_16M, MT_DEVICE },
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{ VA_C5(BAST_VA_SUPERIO), PA_CS5(BAST_PA_SUPERIO), SZ_1M, MT_DEVICE },
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};
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#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
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#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
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#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
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static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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[1] = {
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.hwport = 1,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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},
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/* port 2 is not actually used */
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = UCON,
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.ulcon = ULCON,
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.ufcon = UFCON,
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}
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};
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/* NAND Flash on BAST board */
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#ifdef CONFIG_PM
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static int bast_pm_suspend(void)
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{
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/* ensure that an nRESET is not generated on resume. */
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gpio_direction_output(S3C2410_GPA(21), 1);
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return 0;
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}
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static void bast_pm_resume(void)
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{
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s3c_gpio_cfgpin(S3C2410_GPA(21), S3C2410_GPA21_nRSTOUT);
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}
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#else
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#define bast_pm_suspend NULL
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#define bast_pm_resume NULL
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#endif
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static struct syscore_ops bast_pm_syscore_ops = {
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.suspend = bast_pm_suspend,
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.resume = bast_pm_resume,
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};
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static int smartmedia_map[] = { 0 };
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static int chip0_map[] = { 1 };
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static int chip1_map[] = { 2 };
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static int chip2_map[] = { 3 };
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static struct mtd_partition __initdata bast_default_nand_part[] = {
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[0] = {
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.name = "Boot Agent",
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.size = SZ_16K,
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.offset = 0,
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},
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[1] = {
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.name = "/boot",
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.size = SZ_4M - SZ_16K,
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.offset = SZ_16K,
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},
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[2] = {
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.name = "user",
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.offset = SZ_4M,
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.size = MTDPART_SIZ_FULL,
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}
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};
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/* the bast has 4 selectable slots for nand-flash, the three
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* on-board chip areas, as well as the external SmartMedia
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* slot.
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*
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* Note, there is no current hot-plug support for the SmartMedia
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* socket.
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*/
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static struct s3c2410_nand_set __initdata bast_nand_sets[] = {
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[0] = {
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.name = "SmartMedia",
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.nr_chips = 1,
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.nr_map = smartmedia_map,
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.options = NAND_SCAN_SILENT_NODEV,
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.nr_partitions = ARRAY_SIZE(bast_default_nand_part),
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.partitions = bast_default_nand_part,
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},
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[1] = {
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.name = "chip0",
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.nr_chips = 1,
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.nr_map = chip0_map,
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.nr_partitions = ARRAY_SIZE(bast_default_nand_part),
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.partitions = bast_default_nand_part,
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},
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[2] = {
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.name = "chip1",
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.nr_chips = 1,
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.nr_map = chip1_map,
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.options = NAND_SCAN_SILENT_NODEV,
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.nr_partitions = ARRAY_SIZE(bast_default_nand_part),
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.partitions = bast_default_nand_part,
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},
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[3] = {
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.name = "chip2",
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.nr_chips = 1,
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.nr_map = chip2_map,
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.options = NAND_SCAN_SILENT_NODEV,
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.nr_partitions = ARRAY_SIZE(bast_default_nand_part),
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.partitions = bast_default_nand_part,
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}
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};
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static void bast_nand_select(struct s3c2410_nand_set *set, int slot)
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{
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unsigned int tmp;
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slot = set->nr_map[slot] & 3;
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pr_debug("bast_nand: selecting slot %d (set %p,%p)\n",
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slot, set, set->nr_map);
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tmp = __raw_readb(BAST_VA_CTRL2);
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tmp &= BAST_CPLD_CTLR2_IDERST;
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tmp |= slot;
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tmp |= BAST_CPLD_CTRL2_WNAND;
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pr_debug("bast_nand: ctrl2 now %02x\n", tmp);
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__raw_writeb(tmp, BAST_VA_CTRL2);
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}
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static struct s3c2410_platform_nand __initdata bast_nand_info = {
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.tacls = 30,
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.twrph0 = 60,
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.twrph1 = 60,
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.nr_sets = ARRAY_SIZE(bast_nand_sets),
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.sets = bast_nand_sets,
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.select_chip = bast_nand_select,
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};
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/* DM9000 */
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static struct resource bast_dm9k_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000, 4),
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[1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_DM9000 + 0x40, 0x40),
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[2] = DEFINE_RES_NAMED(BAST_IRQ_DM9000 , 1, NULL, IORESOURCE_IRQ \
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| IORESOURCE_IRQ_HIGHLEVEL),
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};
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/* for the moment we limit ourselves to 16bit IO until some
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* better IO routines can be written and tested
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*/
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static struct dm9000_plat_data bast_dm9k_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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static struct platform_device bast_device_dm9k = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(bast_dm9k_resource),
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.resource = bast_dm9k_resource,
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.dev = {
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.platform_data = &bast_dm9k_platdata,
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}
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};
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/* serial devices */
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#define SERIAL_BASE (S3C2410_CS2 + BAST_PA_SUPERIO)
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#define SERIAL_FLAGS (UPF_BOOT_AUTOCONF | UPF_IOREMAP | UPF_SHARE_IRQ)
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#define SERIAL_CLK (1843200)
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static struct plat_serial8250_port bast_sio_data[] = {
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[0] = {
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.mapbase = SERIAL_BASE + 0x2f8,
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.irq = BAST_IRQ_PCSERIAL1,
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.flags = SERIAL_FLAGS,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = SERIAL_CLK,
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},
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[1] = {
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.mapbase = SERIAL_BASE + 0x3f8,
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.irq = BAST_IRQ_PCSERIAL2,
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.flags = SERIAL_FLAGS,
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.iotype = UPIO_MEM,
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.regshift = 0,
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.uartclk = SERIAL_CLK,
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},
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{ }
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};
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static struct platform_device bast_sio = {
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.name = "serial8250",
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.id = PLAT8250_DEV_PLATFORM,
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.dev = {
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.platform_data = &bast_sio_data,
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},
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};
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/* we have devices on the bus which cannot work much over the
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* standard 100KHz i2c bus frequency
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*/
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static struct s3c2410_platform_i2c __initdata bast_i2c_info = {
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.flags = 0,
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.slave_addr = 0x10,
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.frequency = 100*1000,
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};
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/* Asix AX88796 10/100 ethernet controller */
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static struct ax_plat_data bast_asix_platdata = {
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.flags = AXFLG_MAC_FROMDEV,
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.wordlength = 2,
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.dcr_val = 0x48,
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.rcr_val = 0x40,
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};
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static struct resource bast_asix_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET, 0x18 * 0x20),
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[1] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x1f * 0x20), 1),
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[2] = DEFINE_RES_IRQ(BAST_IRQ_ASIX),
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};
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static struct platform_device bast_device_asix = {
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.name = "ax88796",
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.id = 0,
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.num_resources = ARRAY_SIZE(bast_asix_resource),
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.resource = bast_asix_resource,
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.dev = {
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.platform_data = &bast_asix_platdata
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}
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};
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/* Asix AX88796 10/100 ethernet controller parallel port */
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static struct resource bast_asixpp_resource[] = {
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[0] = DEFINE_RES_MEM(S3C2410_CS5 + BAST_PA_ASIXNET + (0x18 * 0x20), \
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0x30 * 0x20),
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};
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static struct platform_device bast_device_axpp = {
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.name = "ax88796-pp",
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.id = 0,
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.num_resources = ARRAY_SIZE(bast_asixpp_resource),
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.resource = bast_asixpp_resource,
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};
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/* LCD/VGA controller */
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static struct s3c2410fb_display __initdata bast_lcd_info[] = {
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{
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.type = S3C2410_LCDCON1_TFT,
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.width = 640,
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.height = 480,
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.pixclock = 33333,
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.xres = 640,
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.yres = 480,
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.bpp = 4,
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.left_margin = 40,
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.right_margin = 20,
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.hsync_len = 88,
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.upper_margin = 30,
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.lower_margin = 32,
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.vsync_len = 3,
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.lcdcon5 = 0x00014b02,
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},
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{
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.type = S3C2410_LCDCON1_TFT,
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.width = 640,
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.height = 480,
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.pixclock = 33333,
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.xres = 640,
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.yres = 480,
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.bpp = 8,
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.left_margin = 40,
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.right_margin = 20,
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.hsync_len = 88,
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.upper_margin = 30,
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.lower_margin = 32,
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.vsync_len = 3,
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.lcdcon5 = 0x00014b02,
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},
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{
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.type = S3C2410_LCDCON1_TFT,
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.width = 640,
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.height = 480,
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.pixclock = 33333,
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.xres = 640,
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.yres = 480,
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.bpp = 16,
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.left_margin = 40,
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.right_margin = 20,
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.hsync_len = 88,
|
|
.upper_margin = 30,
|
|
.lower_margin = 32,
|
|
.vsync_len = 3,
|
|
|
|
.lcdcon5 = 0x00014b02,
|
|
},
|
|
};
|
|
|
|
/* LCD/VGA controller */
|
|
|
|
static struct s3c2410fb_mach_info __initdata bast_fb_info = {
|
|
|
|
.displays = bast_lcd_info,
|
|
.num_displays = ARRAY_SIZE(bast_lcd_info),
|
|
.default_display = 1,
|
|
};
|
|
|
|
/* I2C devices fitted. */
|
|
|
|
static struct i2c_board_info bast_i2c_devs[] __initdata = {
|
|
{
|
|
I2C_BOARD_INFO("tlv320aic23", 0x1a),
|
|
}, {
|
|
I2C_BOARD_INFO("simtec-pmu", 0x6b),
|
|
}, {
|
|
I2C_BOARD_INFO("ch7013", 0x75),
|
|
},
|
|
};
|
|
|
|
static struct s3c_hwmon_pdata bast_hwmon_info = {
|
|
/* LCD contrast (0-6.6V) */
|
|
.in[0] = &(struct s3c_hwmon_chcfg) {
|
|
.name = "lcd-contrast",
|
|
.mult = 3300,
|
|
.div = 512,
|
|
},
|
|
/* LED current feedback */
|
|
.in[1] = &(struct s3c_hwmon_chcfg) {
|
|
.name = "led-feedback",
|
|
.mult = 3300,
|
|
.div = 1024,
|
|
},
|
|
/* LCD feedback (0-6.6V) */
|
|
.in[2] = &(struct s3c_hwmon_chcfg) {
|
|
.name = "lcd-feedback",
|
|
.mult = 3300,
|
|
.div = 512,
|
|
},
|
|
/* Vcore (1.8-2.0V), Vref 3.3V */
|
|
.in[3] = &(struct s3c_hwmon_chcfg) {
|
|
.name = "vcore",
|
|
.mult = 3300,
|
|
.div = 1024,
|
|
},
|
|
};
|
|
|
|
/* Standard BAST devices */
|
|
// cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in_0
|
|
|
|
static struct platform_device *bast_devices[] __initdata = {
|
|
&s3c2410_device_dclk,
|
|
&s3c_device_ohci,
|
|
&s3c_device_lcd,
|
|
&s3c_device_wdt,
|
|
&s3c_device_i2c0,
|
|
&s3c_device_rtc,
|
|
&s3c_device_nand,
|
|
&s3c_device_adc,
|
|
&s3c_device_hwmon,
|
|
&bast_device_dm9k,
|
|
&bast_device_asix,
|
|
&bast_device_axpp,
|
|
&bast_sio,
|
|
};
|
|
|
|
static struct s3c_cpufreq_board __initdata bast_cpufreq = {
|
|
.refresh = 7800, /* 7.8usec */
|
|
.auto_io = 1,
|
|
.need_io = 1,
|
|
};
|
|
|
|
static struct s3c24xx_audio_simtec_pdata __initdata bast_audio = {
|
|
.have_mic = 1,
|
|
.have_lout = 1,
|
|
};
|
|
|
|
static void __init bast_map_io(void)
|
|
{
|
|
s3c_hwmon_set_platdata(&bast_hwmon_info);
|
|
|
|
s3c24xx_init_io(bast_iodesc, ARRAY_SIZE(bast_iodesc));
|
|
s3c24xx_init_uarts(bast_uartcfgs, ARRAY_SIZE(bast_uartcfgs));
|
|
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
|
|
}
|
|
|
|
static void __init bast_init_time(void)
|
|
{
|
|
s3c2410_init_clocks(12000000);
|
|
samsung_timer_init();
|
|
}
|
|
|
|
static void __init bast_init(void)
|
|
{
|
|
register_syscore_ops(&bast_pm_syscore_ops);
|
|
|
|
s3c_i2c0_set_platdata(&bast_i2c_info);
|
|
s3c_nand_set_platdata(&bast_nand_info);
|
|
s3c24xx_fb_set_platdata(&bast_fb_info);
|
|
platform_add_devices(bast_devices, ARRAY_SIZE(bast_devices));
|
|
|
|
i2c_register_board_info(0, bast_i2c_devs,
|
|
ARRAY_SIZE(bast_i2c_devs));
|
|
|
|
usb_simtec_init();
|
|
nor_simtec_init();
|
|
simtec_audio_add(NULL, true, &bast_audio);
|
|
|
|
WARN_ON(gpio_request(S3C2410_GPA(21), "bast nreset"));
|
|
|
|
s3c_cpufreq_setboard(&bast_cpufreq);
|
|
}
|
|
|
|
MACHINE_START(BAST, "Simtec-BAST")
|
|
/* Maintainer: Ben Dooks <ben@simtec.co.uk> */
|
|
.atag_offset = 0x100,
|
|
.map_io = bast_map_io,
|
|
.init_irq = s3c2410_init_irq,
|
|
.init_machine = bast_init,
|
|
.init_time = bast_init_time,
|
|
MACHINE_END
|