ARM: S5P: HRT support
[linux-2.6-block.git] / arch / arm / mach-s5p64x0 / mach-smdk6450.c
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1/* linux/arch/arm/mach-s5p64x0/mach-smdk6450.c
2 *
3 * Copyright (c) 2010 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9*/
10
11#include <linux/kernel.h>
12#include <linux/types.h>
13#include <linux/interrupt.h>
14#include <linux/list.h>
15#include <linux/timer.h>
16#include <linux/delay.h>
17#include <linux/init.h>
18#include <linux/i2c.h>
19#include <linux/serial_core.h>
20#include <linux/platform_device.h>
21#include <linux/io.h>
22#include <linux/module.h>
23#include <linux/clk.h>
24#include <linux/gpio.h>
b0fd644f 25#include <linux/pwm_backlight.h>
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26
27#include <asm/mach/arch.h>
28#include <asm/mach/map.h>
29#include <asm/irq.h>
30#include <asm/mach-types.h>
31
32#include <mach/hardware.h>
33#include <mach/map.h>
34#include <mach/regs-clock.h>
35#include <mach/i2c.h>
b0fd644f 36#include <mach/regs-gpio.h>
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37
38#include <plat/regs-serial.h>
39#include <plat/gpio-cfg.h>
40#include <plat/s5p6450.h>
41#include <plat/clock.h>
42#include <plat/devs.h>
43#include <plat/cpu.h>
44#include <plat/iic.h>
45#include <plat/pll.h>
46#include <plat/adc.h>
47#include <plat/ts.h>
48
49#define SMDK6450_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
50 S3C2410_UCON_RXILEVEL | \
51 S3C2410_UCON_TXIRQMODE | \
52 S3C2410_UCON_RXIRQMODE | \
53 S3C2410_UCON_RXFIFO_TOI | \
54 S3C2443_UCON_RXERR_IRQEN)
55
56#define SMDK6450_ULCON_DEFAULT S3C2410_LCON_CS8
57
58#define SMDK6450_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
59 S3C2440_UFCON_TXTRIG16 | \
60 S3C2410_UFCON_RXTRIG8)
61
62static struct s3c2410_uartcfg smdk6450_uartcfgs[] __initdata = {
63 [0] = {
64 .hwport = 0,
65 .flags = 0,
66 .ucon = SMDK6450_UCON_DEFAULT,
67 .ulcon = SMDK6450_ULCON_DEFAULT,
68 .ufcon = SMDK6450_UFCON_DEFAULT,
69 },
70 [1] = {
71 .hwport = 1,
72 .flags = 0,
73 .ucon = SMDK6450_UCON_DEFAULT,
74 .ulcon = SMDK6450_ULCON_DEFAULT,
75 .ufcon = SMDK6450_UFCON_DEFAULT,
76 },
77 [2] = {
78 .hwport = 2,
79 .flags = 0,
80 .ucon = SMDK6450_UCON_DEFAULT,
81 .ulcon = SMDK6450_ULCON_DEFAULT,
82 .ufcon = SMDK6450_UFCON_DEFAULT,
83 },
84 [3] = {
85 .hwport = 3,
86 .flags = 0,
87 .ucon = SMDK6450_UCON_DEFAULT,
88 .ulcon = SMDK6450_ULCON_DEFAULT,
89 .ufcon = SMDK6450_UFCON_DEFAULT,
90 },
91#if CONFIG_SERIAL_SAMSUNG_UARTS > 4
92 [4] = {
93 .hwport = 4,
94 .flags = 0,
95 .ucon = SMDK6450_UCON_DEFAULT,
96 .ulcon = SMDK6450_ULCON_DEFAULT,
97 .ufcon = SMDK6450_UFCON_DEFAULT,
98 },
99#endif
100#if CONFIG_SERIAL_SAMSUNG_UARTS > 5
101 [5] = {
102 .hwport = 5,
103 .flags = 0,
104 .ucon = SMDK6450_UCON_DEFAULT,
105 .ulcon = SMDK6450_ULCON_DEFAULT,
106 .ufcon = SMDK6450_UFCON_DEFAULT,
107 },
108#endif
109};
110
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111static int smdk6450_backlight_init(struct device *dev)
112{
113 int ret;
114
115 ret = gpio_request(S5P6450_GPF(15), "Backlight");
116 if (ret) {
117 printk(KERN_ERR "failed to request GPF for PWM-OUT1\n");
118 return ret;
119 }
120
121 /* Configure GPIO pin with S5P6450_GPF15_PWM_TOUT1 */
122 s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_SFN(2));
123
124 return 0;
125}
126
127static void smdk6450_backlight_exit(struct device *dev)
128{
129 s3c_gpio_cfgpin(S5P6450_GPF(15), S3C_GPIO_OUTPUT);
130 gpio_free(S5P6450_GPF(15));
131}
132
133static struct platform_pwm_backlight_data smdk6450_backlight_data = {
134 .pwm_id = 1,
135 .max_brightness = 255,
136 .dft_brightness = 255,
137 .pwm_period_ns = 78770,
138 .init = smdk6450_backlight_init,
139 .exit = smdk6450_backlight_exit,
140};
141
142static struct platform_device smdk6450_backlight_device = {
143 .name = "pwm-backlight",
144 .dev = {
145 .parent = &s3c_device_timer[1].dev,
146 .platform_data = &smdk6450_backlight_data,
147 },
148};
149
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150static struct platform_device *smdk6450_devices[] __initdata = {
151 &s3c_device_adc,
152 &s3c_device_rtc,
153 &s3c_device_i2c0,
154 &s3c_device_i2c1,
155 &s3c_device_ts,
156 &s3c_device_wdt,
be370adc 157 &samsung_asoc_dma,
6f315cb5 158 &s5p6450_device_iis0,
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159 &s3c_device_timer[1],
160 &smdk6450_backlight_device,
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161 /* s5p6450_device_spi0 will be added */
162};
163
164static struct s3c2410_platform_i2c s5p6450_i2c0_data __initdata = {
165 .flags = 0,
166 .slave_addr = 0x10,
167 .frequency = 100*1000,
168 .sda_delay = 100,
169 .cfg_gpio = s5p6450_i2c0_cfg_gpio,
170};
171
172static struct s3c2410_platform_i2c s5p6450_i2c1_data __initdata = {
173 .flags = 0,
174 .bus_num = 1,
175 .slave_addr = 0x10,
176 .frequency = 100*1000,
177 .sda_delay = 100,
178 .cfg_gpio = s5p6450_i2c1_cfg_gpio,
179};
180
181static struct i2c_board_info smdk6450_i2c_devs0[] __initdata = {
fcf8897d 182 { I2C_BOARD_INFO("wm8580", 0x1b), },
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183 { I2C_BOARD_INFO("24c08", 0x50), }, /* Samsung KS24C080C EEPROM */
184};
185
186static struct i2c_board_info smdk6450_i2c_devs1[] __initdata = {
187 { I2C_BOARD_INFO("24c128", 0x57), },/* Samsung S524AD0XD1 EEPROM */
188};
189
190static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
191 .delay = 10000,
192 .presc = 49,
193 .oversampling_shift = 2,
194};
195
196static void __init smdk6450_map_io(void)
197{
198 s5p_init_io(NULL, 0, S5P64X0_SYS_ID);
199 s3c24xx_init_clocks(19200000);
200 s3c24xx_init_uarts(smdk6450_uartcfgs, ARRAY_SIZE(smdk6450_uartcfgs));
201}
202
203static void __init smdk6450_machine_init(void)
204{
205 s3c24xx_ts_set_platdata(&s3c_ts_platform);
206
207 s3c_i2c0_set_platdata(&s5p6450_i2c0_data);
208 s3c_i2c1_set_platdata(&s5p6450_i2c1_data);
209 i2c_register_board_info(0, smdk6450_i2c_devs0,
210 ARRAY_SIZE(smdk6450_i2c_devs0));
211 i2c_register_board_info(1, smdk6450_i2c_devs1,
212 ARRAY_SIZE(smdk6450_i2c_devs1));
213
214 platform_add_devices(smdk6450_devices, ARRAY_SIZE(smdk6450_devices));
215}
216
217MACHINE_START(SMDK6450, "SMDK6450")
218 /* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
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219 .boot_params = S5P64X0_PA_SDRAM + 0x100,
220
221 .init_irq = s5p6450_init_irq,
222 .map_io = smdk6450_map_io,
223 .init_machine = smdk6450_machine_init,
224 .timer = &s3c24xx_timer,
225MACHINE_END