forked from Minki/linux
de611dd407
The SMDK board uses LT3591 as backlight LED driver of LTE480WV LCD. According to the LT3591 datasheet, the switching frequency should be 1MHz. So, PWM period is calculated by following formula: PWM period = 1/switching frequency = 1/1MHz = 1000ns Thus, the PWM backlight period should be 1000ns. Signed-off-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
323 lines
7.8 KiB
C
323 lines
7.8 KiB
C
/* linux/arch/arm/mach-s5pv210/mach-smdkv210.c
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*
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* Copyright (c) 2010 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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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/i2c.h>
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#include <linux/init.h>
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#include <linux/serial_core.h>
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#include <linux/sysdev.h>
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#include <linux/dm9000.h>
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#include <linux/fb.h>
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#include <linux/gpio.h>
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#include <linux/delay.h>
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#include <linux/pwm_backlight.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/setup.h>
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#include <asm/mach-types.h>
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#include <video/platform_lcd.h>
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#include <mach/map.h>
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#include <mach/regs-clock.h>
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#include <plat/regs-serial.h>
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#include <plat/regs-srom.h>
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#include <plat/gpio-cfg.h>
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#include <plat/s5pv210.h>
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#include <plat/devs.h>
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#include <plat/cpu.h>
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#include <plat/adc.h>
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#include <plat/ts.h>
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#include <plat/ata.h>
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#include <plat/iic.h>
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#include <plat/keypad.h>
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#include <plat/pm.h>
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#include <plat/fb.h>
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#include <plat/s5p-time.h>
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#include <plat/backlight.h>
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#include <plat/regs-fb-v4.h>
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/* Following are default values for UCON, ULCON and UFCON UART registers */
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#define SMDKV210_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \
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S3C2410_UCON_RXILEVEL | \
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S3C2410_UCON_TXIRQMODE | \
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S3C2410_UCON_RXIRQMODE | \
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S3C2410_UCON_RXFIFO_TOI | \
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S3C2443_UCON_RXERR_IRQEN)
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#define SMDKV210_ULCON_DEFAULT S3C2410_LCON_CS8
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#define SMDKV210_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \
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S5PV210_UFCON_TXTRIG4 | \
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S5PV210_UFCON_RXTRIG4)
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static struct s3c2410_uartcfg smdkv210_uartcfgs[] __initdata = {
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[0] = {
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.hwport = 0,
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.flags = 0,
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.ucon = SMDKV210_UCON_DEFAULT,
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.ulcon = SMDKV210_ULCON_DEFAULT,
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.ufcon = SMDKV210_UFCON_DEFAULT,
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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 = SMDKV210_UCON_DEFAULT,
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.ulcon = SMDKV210_ULCON_DEFAULT,
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.ufcon = SMDKV210_UFCON_DEFAULT,
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},
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[2] = {
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.hwport = 2,
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.flags = 0,
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.ucon = SMDKV210_UCON_DEFAULT,
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.ulcon = SMDKV210_ULCON_DEFAULT,
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.ufcon = SMDKV210_UFCON_DEFAULT,
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},
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[3] = {
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.hwport = 3,
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.flags = 0,
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.ucon = SMDKV210_UCON_DEFAULT,
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.ulcon = SMDKV210_ULCON_DEFAULT,
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.ufcon = SMDKV210_UFCON_DEFAULT,
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},
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};
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static struct s3c_ide_platdata smdkv210_ide_pdata __initdata = {
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.setup_gpio = s5pv210_ide_setup_gpio,
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};
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static uint32_t smdkv210_keymap[] __initdata = {
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/* KEY(row, col, keycode) */
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KEY(0, 3, KEY_1), KEY(0, 4, KEY_2), KEY(0, 5, KEY_3),
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KEY(0, 6, KEY_4), KEY(0, 7, KEY_5),
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KEY(1, 3, KEY_A), KEY(1, 4, KEY_B), KEY(1, 5, KEY_C),
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KEY(1, 6, KEY_D), KEY(1, 7, KEY_E)
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};
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static struct matrix_keymap_data smdkv210_keymap_data __initdata = {
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.keymap = smdkv210_keymap,
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.keymap_size = ARRAY_SIZE(smdkv210_keymap),
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};
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static struct samsung_keypad_platdata smdkv210_keypad_data __initdata = {
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.keymap_data = &smdkv210_keymap_data,
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.rows = 8,
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.cols = 8,
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};
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static struct resource smdkv210_dm9000_resources[] = {
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[0] = {
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.start = S5PV210_PA_SROM_BANK5,
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.end = S5PV210_PA_SROM_BANK5,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = S5PV210_PA_SROM_BANK5 + 2,
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.end = S5PV210_PA_SROM_BANK5 + 2,
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.flags = IORESOURCE_MEM,
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},
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[2] = {
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.start = IRQ_EINT(9),
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.end = IRQ_EINT(9),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
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},
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};
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static struct dm9000_plat_data smdkv210_dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
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.dev_addr = { 0x00, 0x09, 0xc0, 0xff, 0xec, 0x48 },
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};
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struct platform_device smdkv210_dm9000 = {
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.name = "dm9000",
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.id = -1,
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.num_resources = ARRAY_SIZE(smdkv210_dm9000_resources),
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.resource = smdkv210_dm9000_resources,
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.dev = {
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.platform_data = &smdkv210_dm9000_platdata,
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},
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};
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static void smdkv210_lte480wv_set_power(struct plat_lcd_data *pd,
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unsigned int power)
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{
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if (power) {
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#if !defined(CONFIG_BACKLIGHT_PWM)
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gpio_request(S5PV210_GPD0(3), "GPD0");
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gpio_direction_output(S5PV210_GPD0(3), 1);
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gpio_free(S5PV210_GPD0(3));
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#endif
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/* fire nRESET on power up */
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gpio_request(S5PV210_GPH0(6), "GPH0");
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gpio_direction_output(S5PV210_GPH0(6), 1);
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gpio_set_value(S5PV210_GPH0(6), 0);
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mdelay(10);
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gpio_set_value(S5PV210_GPH0(6), 1);
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mdelay(10);
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gpio_free(S5PV210_GPH0(6));
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} else {
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#if !defined(CONFIG_BACKLIGHT_PWM)
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gpio_request(S5PV210_GPD0(3), "GPD0");
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gpio_direction_output(S5PV210_GPD0(3), 0);
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gpio_free(S5PV210_GPD0(3));
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#endif
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}
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}
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static struct plat_lcd_data smdkv210_lcd_lte480wv_data = {
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.set_power = smdkv210_lte480wv_set_power,
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};
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static struct platform_device smdkv210_lcd_lte480wv = {
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.name = "platform-lcd",
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.dev.parent = &s3c_device_fb.dev,
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.dev.platform_data = &smdkv210_lcd_lte480wv_data,
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};
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static struct s3c_fb_pd_win smdkv210_fb_win0 = {
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.win_mode = {
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.left_margin = 13,
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.right_margin = 8,
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.upper_margin = 7,
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.lower_margin = 5,
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.hsync_len = 3,
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.vsync_len = 1,
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.xres = 800,
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.yres = 480,
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},
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.max_bpp = 32,
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.default_bpp = 24,
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};
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static struct s3c_fb_platdata smdkv210_lcd0_pdata __initdata = {
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.win[0] = &smdkv210_fb_win0,
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.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
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.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
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.setup_gpio = s5pv210_fb_gpio_setup_24bpp,
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};
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static struct platform_device *smdkv210_devices[] __initdata = {
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&s3c_device_adc,
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&s3c_device_cfcon,
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&s3c_device_fb,
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&s3c_device_hsmmc0,
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&s3c_device_hsmmc1,
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&s3c_device_hsmmc2,
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&s3c_device_hsmmc3,
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&s3c_device_i2c0,
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&s3c_device_i2c1,
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&s3c_device_i2c2,
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&s3c_device_rtc,
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&s3c_device_ts,
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&s3c_device_wdt,
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&s5pv210_device_ac97,
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&s5pv210_device_iis0,
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&s5pv210_device_spdif,
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&samsung_asoc_dma,
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&samsung_asoc_idma,
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&samsung_device_keypad,
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&smdkv210_dm9000,
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&smdkv210_lcd_lte480wv,
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};
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static void __init smdkv210_dm9000_init(void)
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{
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unsigned int tmp;
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gpio_request(S5PV210_MP01(5), "nCS5");
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s3c_gpio_cfgpin(S5PV210_MP01(5), S3C_GPIO_SFN(2));
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gpio_free(S5PV210_MP01(5));
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tmp = (5 << S5P_SROM_BCX__TACC__SHIFT);
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__raw_writel(tmp, S5P_SROM_BC5);
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tmp = __raw_readl(S5P_SROM_BW);
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tmp &= (S5P_SROM_BW__CS_MASK << S5P_SROM_BW__NCS5__SHIFT);
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tmp |= (1 << S5P_SROM_BW__NCS5__SHIFT);
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__raw_writel(tmp, S5P_SROM_BW);
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}
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static struct i2c_board_info smdkv210_i2c_devs0[] __initdata = {
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{ I2C_BOARD_INFO("24c08", 0x50), }, /* Samsung S524AD0XD1 */
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{ I2C_BOARD_INFO("wm8580", 0x1b), },
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};
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static struct i2c_board_info smdkv210_i2c_devs1[] __initdata = {
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/* To Be Updated */
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};
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static struct i2c_board_info smdkv210_i2c_devs2[] __initdata = {
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/* To Be Updated */
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};
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/* LCD Backlight data */
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static struct samsung_bl_gpio_info smdkv210_bl_gpio_info = {
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.no = S5PV210_GPD0(3),
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.func = S3C_GPIO_SFN(2),
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};
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static struct platform_pwm_backlight_data smdkv210_bl_data = {
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.pwm_id = 3,
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.pwm_period_ns = 1000,
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};
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static void __init smdkv210_map_io(void)
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{
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s5p_init_io(NULL, 0, S5P_VA_CHIPID);
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s3c24xx_init_clocks(24000000);
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s3c24xx_init_uarts(smdkv210_uartcfgs, ARRAY_SIZE(smdkv210_uartcfgs));
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s5p_set_timer_source(S5P_PWM2, S5P_PWM4);
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}
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static void __init smdkv210_machine_init(void)
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{
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s3c_pm_init();
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smdkv210_dm9000_init();
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samsung_keypad_set_platdata(&smdkv210_keypad_data);
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s3c24xx_ts_set_platdata(NULL);
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s3c_i2c0_set_platdata(NULL);
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s3c_i2c1_set_platdata(NULL);
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s3c_i2c2_set_platdata(NULL);
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i2c_register_board_info(0, smdkv210_i2c_devs0,
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ARRAY_SIZE(smdkv210_i2c_devs0));
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i2c_register_board_info(1, smdkv210_i2c_devs1,
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ARRAY_SIZE(smdkv210_i2c_devs1));
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i2c_register_board_info(2, smdkv210_i2c_devs2,
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ARRAY_SIZE(smdkv210_i2c_devs2));
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s3c_ide_set_platdata(&smdkv210_ide_pdata);
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s3c_fb_set_platdata(&smdkv210_lcd0_pdata);
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samsung_bl_set(&smdkv210_bl_gpio_info, &smdkv210_bl_data);
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platform_add_devices(smdkv210_devices, ARRAY_SIZE(smdkv210_devices));
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}
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MACHINE_START(SMDKV210, "SMDKV210")
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/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
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.atag_offset = 0x100,
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.init_irq = s5pv210_init_irq,
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.map_io = smdkv210_map_io,
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.init_machine = smdkv210_machine_init,
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.timer = &s5p_timer,
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MACHINE_END
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