forked from luck/tmp_suning_uos_patched
20780fcc40
This patch adds support HRT for machines of S5P64X0 and S5PV210. Basically, PWM Timer3 is used for clockevent and PWM Timer4 is used for clocksource. Since PWM Timer3 is used for other purpose, PWM Timer2 is used on SMDKV210. Signed-off-by: Sangbeom Kim <sbkim73@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
209 lines
5.0 KiB
C
209 lines
5.0 KiB
C
/* linux/arch/arm/mach-s5p64x0/mach-smdk6440.c
|
|
*
|
|
* Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
*
|
|
* 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/delay.h>
|
|
#include <linux/init.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/module.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/pwm_backlight.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/map.h>
|
|
#include <mach/regs-clock.h>
|
|
#include <mach/i2c.h>
|
|
#include <mach/regs-gpio.h>
|
|
|
|
#include <plat/regs-serial.h>
|
|
#include <plat/gpio-cfg.h>
|
|
#include <plat/s5p6440.h>
|
|
#include <plat/clock.h>
|
|
#include <plat/devs.h>
|
|
#include <plat/cpu.h>
|
|
#include <plat/iic.h>
|
|
#include <plat/pll.h>
|
|
#include <plat/adc.h>
|
|
#include <plat/ts.h>
|
|
#include <plat/s5p-time.h>
|
|
|
|
#define SMDK6440_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
|
|
S3C2410_UCON_RXILEVEL | \
|
|
S3C2410_UCON_TXIRQMODE | \
|
|
S3C2410_UCON_RXIRQMODE | \
|
|
S3C2410_UCON_RXFIFO_TOI | \
|
|
S3C2443_UCON_RXERR_IRQEN)
|
|
|
|
#define SMDK6440_ULCON_DEFAULT S3C2410_LCON_CS8
|
|
|
|
#define SMDK6440_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
|
|
S3C2440_UFCON_TXTRIG16 | \
|
|
S3C2410_UFCON_RXTRIG8)
|
|
|
|
static struct s3c2410_uartcfg smdk6440_uartcfgs[] __initdata = {
|
|
[0] = {
|
|
.hwport = 0,
|
|
.flags = 0,
|
|
.ucon = SMDK6440_UCON_DEFAULT,
|
|
.ulcon = SMDK6440_ULCON_DEFAULT,
|
|
.ufcon = SMDK6440_UFCON_DEFAULT,
|
|
},
|
|
[1] = {
|
|
.hwport = 1,
|
|
.flags = 0,
|
|
.ucon = SMDK6440_UCON_DEFAULT,
|
|
.ulcon = SMDK6440_ULCON_DEFAULT,
|
|
.ufcon = SMDK6440_UFCON_DEFAULT,
|
|
},
|
|
[2] = {
|
|
.hwport = 2,
|
|
.flags = 0,
|
|
.ucon = SMDK6440_UCON_DEFAULT,
|
|
.ulcon = SMDK6440_ULCON_DEFAULT,
|
|
.ufcon = SMDK6440_UFCON_DEFAULT,
|
|
},
|
|
[3] = {
|
|
.hwport = 3,
|
|
.flags = 0,
|
|
.ucon = SMDK6440_UCON_DEFAULT,
|
|
.ulcon = SMDK6440_ULCON_DEFAULT,
|
|
.ufcon = SMDK6440_UFCON_DEFAULT,
|
|
},
|
|
};
|
|
|
|
static int smdk6440_backlight_init(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request(S5P6440_GPF(15), "Backlight");
|
|
if (ret) {
|
|
printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
|
|
return ret;
|
|
}
|
|
|
|
/* Configure GPIO pin with S5P6440_GPF15_PWM_TOUT1 */
|
|
s3c_gpio_cfgpin(S5P6440_GPF(15), S3C_GPIO_SFN(2));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void smdk6440_backlight_exit(struct device *dev)
|
|
{
|
|
s3c_gpio_cfgpin(S5P6440_GPF(15), S3C_GPIO_OUTPUT);
|
|
gpio_free(S5P6440_GPF(15));
|
|
}
|
|
|
|
static struct platform_pwm_backlight_data smdk6440_backlight_data = {
|
|
.pwm_id = 1,
|
|
.max_brightness = 255,
|
|
.dft_brightness = 255,
|
|
.pwm_period_ns = 78770,
|
|
.init = smdk6440_backlight_init,
|
|
.exit = smdk6440_backlight_exit,
|
|
};
|
|
|
|
static struct platform_device smdk6440_backlight_device = {
|
|
.name = "pwm-backlight",
|
|
.dev = {
|
|
.parent = &s3c_device_timer[1].dev,
|
|
.platform_data = &smdk6440_backlight_data,
|
|
},
|
|
};
|
|
|
|
static struct platform_device *smdk6440_devices[] __initdata = {
|
|
&s3c_device_adc,
|
|
&s3c_device_rtc,
|
|
&s3c_device_i2c0,
|
|
&s3c_device_i2c1,
|
|
&s3c_device_ts,
|
|
&s3c_device_wdt,
|
|
&samsung_asoc_dma,
|
|
&s5p6440_device_iis,
|
|
&s3c_device_timer[1],
|
|
&smdk6440_backlight_device,
|
|
};
|
|
|
|
static struct s3c2410_platform_i2c s5p6440_i2c0_data __initdata = {
|
|
.flags = 0,
|
|
.slave_addr = 0x10,
|
|
.frequency = 100*1000,
|
|
.sda_delay = 100,
|
|
.cfg_gpio = s5p6440_i2c0_cfg_gpio,
|
|
};
|
|
|
|
static struct s3c2410_platform_i2c s5p6440_i2c1_data __initdata = {
|
|
.flags = 0,
|
|
.bus_num = 1,
|
|
.slave_addr = 0x10,
|
|
.frequency = 100*1000,
|
|
.sda_delay = 100,
|
|
.cfg_gpio = s5p6440_i2c1_cfg_gpio,
|
|
};
|
|
|
|
static struct i2c_board_info smdk6440_i2c_devs0[] __initdata = {
|
|
{ I2C_BOARD_INFO("24c08", 0x50), },
|
|
{ I2C_BOARD_INFO("wm8580", 0x1b), },
|
|
};
|
|
|
|
static struct i2c_board_info smdk6440_i2c_devs1[] __initdata = {
|
|
/* To be populated */
|
|
};
|
|
|
|
static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
|
|
.delay = 10000,
|
|
.presc = 49,
|
|
.oversampling_shift = 2,
|
|
};
|
|
|
|
static void __init smdk6440_map_io(void)
|
|
{
|
|
s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
|
|
s3c24xx_init_clocks(12000000);
|
|
s3c24xx_init_uarts(smdk6440_uartcfgs, ARRAY_SIZE(smdk6440_uartcfgs));
|
|
s5p_set_timer_source(S5P_PWM3, S5P_PWM4);
|
|
}
|
|
|
|
static void __init smdk6440_machine_init(void)
|
|
{
|
|
s3c24xx_ts_set_platdata(&s3c_ts_platform);
|
|
|
|
s3c_i2c0_set_platdata(&s5p6440_i2c0_data);
|
|
s3c_i2c1_set_platdata(&s5p6440_i2c1_data);
|
|
i2c_register_board_info(0, smdk6440_i2c_devs0,
|
|
ARRAY_SIZE(smdk6440_i2c_devs0));
|
|
i2c_register_board_info(1, smdk6440_i2c_devs1,
|
|
ARRAY_SIZE(smdk6440_i2c_devs1));
|
|
|
|
platform_add_devices(smdk6440_devices, ARRAY_SIZE(smdk6440_devices));
|
|
}
|
|
|
|
MACHINE_START(SMDK6440, "SMDK6440")
|
|
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
|
|
.boot_params = S5P64X0_PA_SDRAM + 0x100,
|
|
|
|
.init_irq = s5p6440_init_irq,
|
|
.map_io = smdk6440_map_io,
|
|
.init_machine = smdk6440_machine_init,
|
|
.timer = &s5p_timer,
|
|
MACHINE_END
|