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alistair23-linux/arch/arm/mach-s3c24xx/mach-osiris.c
Heiko Stuebner f6361c6b38 ARM: S3C24XX: remove separate restart code 
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>
2014-09-14 02:43:09 +09:00

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/*
* 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/serial_s3c.h>
#include <linux/clk.h>
#include <linux/i2c.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/i2c/tps65010.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
#include <asm/irq.h>
#include <linux/platform_data/mtd-nand-s3c2410.h>
#include <linux/platform_data/i2c-s3c2410.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/nand_ecc.h>
#include <linux/mtd/partitions.h>
#include <plat/cpu.h>
#include <plat/cpu-freq.h>
#include <plat/devs.h>
#include <plat/gpio-cfg.h>
#include <plat/samsung-time.h>
#include <mach/hardware.h>
#include <mach/regs-gpio.h>
#include <mach/regs-lcd.h>
#include <mach/gpio-samsung.h>
#include "common.h"
#include "osiris.h"
#include "regs-mem.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] = DEFINE_RES_MEM(0x0f000000, SZ_1M),
[1] = DEFINE_RES_MEM(0x0c000000, SZ_1M),
};
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. */
gpio_request_one(S3C2410_GPA(21), GPIOF_OUT_INIT_HIGH, NULL);
gpio_free(S3C2410_GPA(21));
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 = {
&s3c2410_device_dclk,
&s3c_device_i2c0,
&s3c_device_wdt,
&s3c_device_nand,
&osiris_pcmcia,
};
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;
s3c24xx_init_io(osiris_iodesc, ARRAY_SIZE(osiris_iodesc));
s3c24xx_init_uarts(osiris_uartcfgs, ARRAY_SIZE(osiris_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
/* 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 */
gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL);
gpio_free(S3C2410_GPA(0));
}
/* 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_time(void)
{
s3c2440_init_clocks(12000000);
samsung_timer_init();
}
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 = s3c2440_init_irq,
.init_machine = osiris_init,
.init_time = osiris_init_time,
MACHINE_END
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