/* * Copyright (c) 2006-2009 Victor Chukhantsev, Denis Grigoriev, * Copyright (c) 2007-2010 Vasily Khoruzhick * * based on smdk2440 written by Ben Dooks * * 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/memblock.h> #include <linux/delay.h> #include <linux/timer.h> #include <linux/init.h> #include <linux/gpio.h> #include <linux/platform_device.h> #include <linux/serial_core.h> #include <linux/input.h> #include <linux/gpio_keys.h> #include <linux/device.h> #include <linux/pda_power.h> #include <linux/pwm_backlight.h> #include <linux/pwm.h> #include <linux/s3c_adc_battery.h> #include <linux/leds.h> #include <linux/i2c.h> #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mmc/host.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <linux/platform_data/i2c-s3c2410.h> #include <linux/platform_data/mmc-s3cmci.h> #include <linux/platform_data/mtd-nand-s3c2410.h> #include <linux/platform_data/touchscreen-s3c2410.h> #include <linux/platform_data/usb-s3c2410_udc.h> #include <sound/uda1380.h> #include <mach/fb.h> #include <mach/regs-gpio.h> #include <mach/regs-lcd.h> #include <plat/clock.h> #include <plat/cpu.h> #include <plat/devs.h> #include <plat/pm.h> #include <plat/regs-serial.h> #include <plat/samsung-time.h> #include "common.h" #include "h1940.h" #define LCD_PWM_PERIOD 192960 #define LCD_PWM_DUTY 127353 static struct map_desc rx1950_iodesc[] __initdata = { }; static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = { [0] = { .hwport = 0, .flags = 0, .ucon = 0x3c5, .ulcon = 0x03, .ufcon = 0x51, .clk_sel = S3C2410_UCON_CLKSEL3, }, [1] = { .hwport = 1, .flags = 0, .ucon = 0x3c5, .ulcon = 0x03, .ufcon = 0x51, .clk_sel = S3C2410_UCON_CLKSEL3, }, /* IR port */ [2] = { .hwport = 2, .flags = 0, .ucon = 0x3c5, .ulcon = 0x43, .ufcon = 0xf1, .clk_sel = S3C2410_UCON_CLKSEL3, }, }; static struct s3c2410fb_display rx1950_display = { .type = S3C2410_LCDCON1_TFT, .width = 240, .height = 320, .xres = 240, .yres = 320, .bpp = 16, .pixclock = 260000, .left_margin = 10, .right_margin = 20, .hsync_len = 10, .upper_margin = 2, .lower_margin = 2, .vsync_len = 2, .lcdcon5 = S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVCLK | S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME | S3C2410_LCDCON5_HWSWP | (0x02 << 13) | (0x02 << 15), }; static int power_supply_init(struct device *dev) { return gpio_request(S3C2410_GPF(2), "cable plugged"); } static int rx1950_is_ac_online(void) { return !gpio_get_value(S3C2410_GPF(2)); } static void power_supply_exit(struct device *dev) { gpio_free(S3C2410_GPF(2)); } static char *rx1950_supplicants[] = { "main-battery" }; static struct pda_power_pdata power_supply_info = { .init = power_supply_init, .is_ac_online = rx1950_is_ac_online, .exit = power_supply_exit, .supplied_to = rx1950_supplicants, .num_supplicants = ARRAY_SIZE(rx1950_supplicants), }; static struct resource power_supply_resources[] = { [0] = DEFINE_RES_NAMED(IRQ_EINT2, 1, "ac", IORESOURCE_IRQ \ | IORESOURCE_IRQ_LOWEDGE | IORESOURCE_IRQ_HIGHEDGE), }; static struct platform_device power_supply = { .name = "pda-power", .id = -1, .dev = { .platform_data = &power_supply_info, }, .resource = power_supply_resources, .num_resources = ARRAY_SIZE(power_supply_resources), }; static const struct s3c_adc_bat_thresh bat_lut_noac[] = { { .volt = 4100, .cur = 156, .level = 100}, { .volt = 4050, .cur = 156, .level = 95}, { .volt = 4025, .cur = 141, .level = 90}, { .volt = 3995, .cur = 144, .level = 85}, { .volt = 3957, .cur = 162, .level = 80}, { .volt = 3931, .cur = 147, .level = 75}, { .volt = 3902, .cur = 147, .level = 70}, { .volt = 3863, .cur = 153, .level = 65}, { .volt = 3838, .cur = 150, .level = 60}, { .volt = 3800, .cur = 153, .level = 55}, { .volt = 3765, .cur = 153, .level = 50}, { .volt = 3748, .cur = 172, .level = 45}, { .volt = 3740, .cur = 153, .level = 40}, { .volt = 3714, .cur = 175, .level = 35}, { .volt = 3710, .cur = 156, .level = 30}, { .volt = 3963, .cur = 156, .level = 25}, { .volt = 3672, .cur = 178, .level = 20}, { .volt = 3651, .cur = 178, .level = 15}, { .volt = 3629, .cur = 178, .level = 10}, { .volt = 3612, .cur = 162, .level = 5}, { .volt = 3605, .cur = 162, .level = 0}, }; static const struct s3c_adc_bat_thresh bat_lut_acin[] = { { .volt = 4200, .cur = 0, .level = 100}, { .volt = 4190, .cur = 0, .level = 99}, { .volt = 4178, .cur = 0, .level = 95}, { .volt = 4110, .cur = 0, .level = 70}, { .volt = 4076, .cur = 0, .level = 65}, { .volt = 4046, .cur = 0, .level = 60}, { .volt = 4021, .cur = 0, .level = 55}, { .volt = 3999, .cur = 0, .level = 50}, { .volt = 3982, .cur = 0, .level = 45}, { .volt = 3965, .cur = 0, .level = 40}, { .volt = 3957, .cur = 0, .level = 35}, { .volt = 3948, .cur = 0, .level = 30}, { .volt = 3936, .cur = 0, .level = 25}, { .volt = 3927, .cur = 0, .level = 20}, { .volt = 3906, .cur = 0, .level = 15}, { .volt = 3880, .cur = 0, .level = 10}, { .volt = 3829, .cur = 0, .level = 5}, { .volt = 3820, .cur = 0, .level = 0}, }; static int rx1950_bat_init(void) { int ret; ret = gpio_request(S3C2410_GPJ(2), "rx1950-charger-enable-1"); if (ret) goto err_gpio1; ret = gpio_request(S3C2410_GPJ(3), "rx1950-charger-enable-2"); if (ret) goto err_gpio2; return 0; err_gpio2: gpio_free(S3C2410_GPJ(2)); err_gpio1: return ret; } static void rx1950_bat_exit(void) { gpio_free(S3C2410_GPJ(2)); gpio_free(S3C2410_GPJ(3)); } static void rx1950_enable_charger(void) { gpio_direction_output(S3C2410_GPJ(2), 1); gpio_direction_output(S3C2410_GPJ(3), 1); } static void rx1950_disable_charger(void) { gpio_direction_output(S3C2410_GPJ(2), 0); gpio_direction_output(S3C2410_GPJ(3), 0); } static DEFINE_SPINLOCK(rx1950_blink_spin); static int rx1950_led_blink_set(unsigned gpio, int state, unsigned long *delay_on, unsigned long *delay_off) { int blink_gpio, check_gpio; switch (gpio) { case S3C2410_GPA(6): blink_gpio = S3C2410_GPA(4); check_gpio = S3C2410_GPA(3); break; case S3C2410_GPA(7): blink_gpio = S3C2410_GPA(3); check_gpio = S3C2410_GPA(4); break; default: return -EINVAL; break; } if (delay_on && delay_off && !*delay_on && !*delay_off) *delay_on = *delay_off = 500; spin_lock(&rx1950_blink_spin); switch (state) { case GPIO_LED_NO_BLINK_LOW: case GPIO_LED_NO_BLINK_HIGH: if (!gpio_get_value(check_gpio)) gpio_set_value(S3C2410_GPJ(6), 0); gpio_set_value(blink_gpio, 0); gpio_set_value(gpio, state); break; case GPIO_LED_BLINK: gpio_set_value(gpio, 0); gpio_set_value(S3C2410_GPJ(6), 1); gpio_set_value(blink_gpio, 1); break; } spin_unlock(&rx1950_blink_spin); return 0; } static struct gpio_led rx1950_leds_desc[] = { { .name = "Green", .default_trigger = "main-battery-full", .gpio = S3C2410_GPA(6), .retain_state_suspended = 1, }, { .name = "Red", .default_trigger = "main-battery-charging-blink-full-solid", .gpio = S3C2410_GPA(7), .retain_state_suspended = 1, }, { .name = "Blue", .default_trigger = "rx1950-acx-mem", .gpio = S3C2410_GPA(11), .retain_state_suspended = 1, }, }; static struct gpio_led_platform_data rx1950_leds_pdata = { .num_leds = ARRAY_SIZE(rx1950_leds_desc), .leds = rx1950_leds_desc, .gpio_blink_set = rx1950_led_blink_set, }; static struct platform_device rx1950_leds = { .name = "leds-gpio", .id = -1, .dev = { .platform_data = &rx1950_leds_pdata, }, }; static struct s3c_adc_bat_pdata rx1950_bat_cfg = { .init = rx1950_bat_init, .exit = rx1950_bat_exit, .enable_charger = rx1950_enable_charger, .disable_charger = rx1950_disable_charger, .gpio_charge_finished = S3C2410_GPF(3), .lut_noac = bat_lut_noac, .lut_noac_cnt = ARRAY_SIZE(bat_lut_noac), .lut_acin = bat_lut_acin, .lut_acin_cnt = ARRAY_SIZE(bat_lut_acin), .volt_channel = 0, .current_channel = 1, .volt_mult = 4235, .current_mult = 2900, .internal_impedance = 200, }; static struct platform_device rx1950_battery = { .name = "s3c-adc-battery", .id = -1, .dev = { .parent = &s3c_device_adc.dev, .platform_data = &rx1950_bat_cfg, }, }; static struct s3c2410fb_mach_info rx1950_lcd_cfg = { .displays = &rx1950_display, .num_displays = 1, .default_display = 0, .lpcsel = 0x02, .gpccon = 0xaa9556a9, .gpccon_mask = 0xffc003fc, .gpcup = 0x0000ffff, .gpcup_mask = 0xffffffff, .gpdcon = 0xaa90aaa1, .gpdcon_mask = 0xffc0fff0, .gpdup = 0x0000fcfd, .gpdup_mask = 0xffffffff, }; static struct pwm_device *lcd_pwm; static void rx1950_lcd_power(int enable) { int i; static int enabled; if (enabled == enable) return; if (!enable) { /* GPC11-GPC15->OUTPUT */ for (i = 11; i < 16; i++) gpio_direction_output(S3C2410_GPC(i), 1); /* Wait a bit here... */ mdelay(100); /* GPD2-GPD7->OUTPUT */ /* GPD11-GPD15->OUTPUT */ /* GPD2-GPD7->1, GPD11-GPD15->1 */ for (i = 2; i < 8; i++) gpio_direction_output(S3C2410_GPD(i), 1); for (i = 11; i < 16; i++) gpio_direction_output(S3C2410_GPD(i), 1); /* Wait a bit here...*/ mdelay(100); /* GPB0->OUTPUT, GPB0->0 */ gpio_direction_output(S3C2410_GPB(0), 0); /* GPC1-GPC4->OUTPUT, GPC1-4->0 */ for (i = 1; i < 5; i++) gpio_direction_output(S3C2410_GPC(i), 0); /* GPC15-GPC11->0 */ for (i = 11; i < 16; i++) gpio_direction_output(S3C2410_GPC(i), 0); /* GPD15-GPD11->0, GPD2->GPD7->0 */ for (i = 11; i < 16; i++) gpio_direction_output(S3C2410_GPD(i), 0); for (i = 2; i < 8; i++) gpio_direction_output(S3C2410_GPD(i), 0); /* GPC6->0, GPC7->0, GPC5->0 */ gpio_direction_output(S3C2410_GPC(6), 0); gpio_direction_output(S3C2410_GPC(7), 0); gpio_direction_output(S3C2410_GPC(5), 0); /* GPB1->OUTPUT, GPB1->0 */ gpio_direction_output(S3C2410_GPB(1), 0); pwm_config(lcd_pwm, 0, LCD_PWM_PERIOD); pwm_disable(lcd_pwm); /* GPC0->0, GPC10->0 */ gpio_direction_output(S3C2410_GPC(0), 0); gpio_direction_output(S3C2410_GPC(10), 0); } else { pwm_config(lcd_pwm, LCD_PWM_DUTY, LCD_PWM_PERIOD); pwm_enable(lcd_pwm); gpio_direction_output(S3C2410_GPC(0), 1); gpio_direction_output(S3C2410_GPC(5), 1); s3c_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPB1_TOUT1); gpio_direction_output(S3C2410_GPC(7), 1); for (i = 1; i < 5; i++) s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2)); for (i = 11; i < 16; i++) s3c_gpio_cfgpin(S3C2410_GPC(i), S3C_GPIO_SFN(2)); for (i = 2; i < 8; i++) s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2)); for (i = 11; i < 16; i++) s3c_gpio_cfgpin(S3C2410_GPD(i), S3C_GPIO_SFN(2)); gpio_direction_output(S3C2410_GPC(10), 1); gpio_direction_output(S3C2410_GPC(6), 1); } enabled = enable; } static void rx1950_bl_power(int enable) { static int enabled; if (enabled == enable) return; if (!enable) { gpio_direction_output(S3C2410_GPB(0), 0); } else { /* LED driver need a "push" to power on */ gpio_direction_output(S3C2410_GPB(0), 1); /* Warm up backlight for one period of PWM. * Without this trick its almost impossible to * enable backlight with low brightness value */ ndelay(48000); s3c_gpio_cfgpin(S3C2410_GPB(0), S3C2410_GPB0_TOUT0); } enabled = enable; } static int rx1950_backlight_init(struct device *dev) { WARN_ON(gpio_request(S3C2410_GPB(0), "Backlight")); lcd_pwm = pwm_request(1, "RX1950 LCD"); if (IS_ERR(lcd_pwm)) { dev_err(dev, "Unable to request PWM for LCD power!\n"); return PTR_ERR(lcd_pwm); } rx1950_lcd_power(1); rx1950_bl_power(1); return 0; } static void rx1950_backlight_exit(struct device *dev) { rx1950_bl_power(0); rx1950_lcd_power(0); pwm_free(lcd_pwm); gpio_free(S3C2410_GPB(0)); } static int rx1950_backlight_notify(struct device *dev, int brightness) { if (!brightness) { rx1950_bl_power(0); rx1950_lcd_power(0); } else { rx1950_lcd_power(1); rx1950_bl_power(1); } return brightness; } static struct platform_pwm_backlight_data rx1950_backlight_data = { .pwm_id = 0, .max_brightness = 24, .dft_brightness = 4, .pwm_period_ns = 48000, .init = rx1950_backlight_init, .notify = rx1950_backlight_notify, .exit = rx1950_backlight_exit, }; static struct platform_device rx1950_backlight = { .name = "pwm-backlight", .dev = { .parent = &s3c_device_timer[0].dev, .platform_data = &rx1950_backlight_data, }, }; static void rx1950_set_mmc_power(unsigned char power_mode, unsigned short vdd) { switch (power_mode) { case MMC_POWER_OFF: gpio_direction_output(S3C2410_GPJ(1), 0); break; case MMC_POWER_UP: case MMC_POWER_ON: gpio_direction_output(S3C2410_GPJ(1), 1); break; default: break; } } static struct s3c24xx_mci_pdata rx1950_mmc_cfg __initdata = { .gpio_detect = S3C2410_GPF(5), .gpio_wprotect = S3C2410_GPH(8), .set_power = rx1950_set_mmc_power, .ocr_avail = MMC_VDD_32_33, }; static struct mtd_partition rx1950_nand_part[] = { [0] = { .name = "Boot0", .offset = 0, .size = 0x4000, .mask_flags = MTD_WRITEABLE, }, [1] = { .name = "Boot1", .offset = MTDPART_OFS_APPEND, .size = 0x40000, .mask_flags = MTD_WRITEABLE, }, [2] = { .name = "Kernel", .offset = MTDPART_OFS_APPEND, .size = 0x300000, .mask_flags = 0, }, [3] = { .name = "Filesystem", .offset = MTDPART_OFS_APPEND, .size = MTDPART_SIZ_FULL, .mask_flags = 0, }, }; static struct s3c2410_nand_set rx1950_nand_sets[] = { [0] = { .name = "Internal", .nr_chips = 1, .nr_partitions = ARRAY_SIZE(rx1950_nand_part), .partitions = rx1950_nand_part, }, }; static struct s3c2410_platform_nand rx1950_nand_info = { .tacls = 25, .twrph0 = 50, .twrph1 = 15, .nr_sets = ARRAY_SIZE(rx1950_nand_sets), .sets = rx1950_nand_sets, }; static struct s3c2410_udc_mach_info rx1950_udc_cfg __initdata = { .vbus_pin = S3C2410_GPG(5), .vbus_pin_inverted = 1, .pullup_pin = S3C2410_GPJ(5), }; static struct s3c2410_ts_mach_info rx1950_ts_cfg __initdata = { .delay = 10000, .presc = 49, .oversampling_shift = 3, }; static struct gpio_keys_button rx1950_gpio_keys_table[] = { { .code = KEY_POWER, .gpio = S3C2410_GPF(0), .active_low = 1, .desc = "Power button", .wakeup = 1, }, { .code = KEY_F5, .gpio = S3C2410_GPF(7), .active_low = 1, .desc = "Record button", }, { .code = KEY_F1, .gpio = S3C2410_GPG(0), .active_low = 1, .desc = "Calendar button", }, { .code = KEY_F2, .gpio = S3C2410_GPG(2), .active_low = 1, .desc = "Contacts button", }, { .code = KEY_F3, .gpio = S3C2410_GPG(3), .active_low = 1, .desc = "Mail button", }, { .code = KEY_F4, .gpio = S3C2410_GPG(7), .active_low = 1, .desc = "WLAN button", }, { .code = KEY_LEFT, .gpio = S3C2410_GPG(10), .active_low = 1, .desc = "Left button", }, { .code = KEY_RIGHT, .gpio = S3C2410_GPG(11), .active_low = 1, .desc = "Right button", }, { .code = KEY_UP, .gpio = S3C2410_GPG(4), .active_low = 1, .desc = "Up button", }, { .code = KEY_DOWN, .gpio = S3C2410_GPG(6), .active_low = 1, .desc = "Down button", }, { .code = KEY_ENTER, .gpio = S3C2410_GPG(9), .active_low = 1, .desc = "Ok button" }, }; static struct gpio_keys_platform_data rx1950_gpio_keys_data = { .buttons = rx1950_gpio_keys_table, .nbuttons = ARRAY_SIZE(rx1950_gpio_keys_table), }; static struct platform_device rx1950_device_gpiokeys = { .name = "gpio-keys", .dev.platform_data = &rx1950_gpio_keys_data, }; static struct uda1380_platform_data uda1380_info = { .gpio_power = S3C2410_GPJ(0), .gpio_reset = S3C2410_GPD(0), .dac_clk = UDA1380_DAC_CLK_SYSCLK, }; static struct i2c_board_info rx1950_i2c_devices[] = { { I2C_BOARD_INFO("uda1380", 0x1a), .platform_data = &uda1380_info, }, }; static struct platform_device *rx1950_devices[] __initdata = { &s3c_device_lcd, &s3c_device_wdt, &s3c_device_i2c0, &s3c_device_iis, &s3c_device_usbgadget, &s3c_device_rtc, &s3c_device_nand, &s3c_device_sdi, &s3c_device_adc, &s3c_device_ts, &s3c_device_timer[0], &s3c_device_timer[1], &rx1950_backlight, &rx1950_device_gpiokeys, &power_supply, &rx1950_battery, &rx1950_leds, }; static struct clk *rx1950_clocks[] __initdata = { &s3c24xx_clkout0, &s3c24xx_clkout1, }; static void __init rx1950_map_io(void) { s3c24xx_clkout0.parent = &clk_h; s3c24xx_clkout1.parent = &clk_f; s3c24xx_register_clocks(rx1950_clocks, ARRAY_SIZE(rx1950_clocks)); s3c24xx_init_io(rx1950_iodesc, ARRAY_SIZE(rx1950_iodesc)); s3c24xx_init_clocks(16934000); s3c24xx_init_uarts(rx1950_uartcfgs, ARRAY_SIZE(rx1950_uartcfgs)); samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4); /* setup PM */ #ifdef CONFIG_PM_H1940 memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 8); #endif s3c_pm_init(); } static void __init rx1950_init_machine(void) { int i; s3c24xx_fb_set_platdata(&rx1950_lcd_cfg); s3c24xx_udc_set_platdata(&rx1950_udc_cfg); s3c24xx_ts_set_platdata(&rx1950_ts_cfg); s3c24xx_mci_set_platdata(&rx1950_mmc_cfg); s3c_i2c0_set_platdata(NULL); s3c_nand_set_platdata(&rx1950_nand_info); /* Turn off suspend on both USB ports, and switch the * selectable USB port to USB device mode. */ s3c2410_modify_misccr(S3C2410_MISCCR_USBHOST | S3C2410_MISCCR_USBSUSPND0 | S3C2410_MISCCR_USBSUSPND1, 0x0); /* mmc power is disabled by default */ WARN_ON(gpio_request(S3C2410_GPJ(1), "MMC power")); gpio_direction_output(S3C2410_GPJ(1), 0); for (i = 0; i < 8; i++) WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power")); for (i = 10; i < 16; i++) WARN_ON(gpio_request(S3C2410_GPC(i), "LCD power")); for (i = 2; i < 8; i++) WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power")); for (i = 11; i < 16; i++) WARN_ON(gpio_request(S3C2410_GPD(i), "LCD power")); WARN_ON(gpio_request(S3C2410_GPB(1), "LCD power")); WARN_ON(gpio_request(S3C2410_GPA(3), "Red blink")); WARN_ON(gpio_request(S3C2410_GPA(4), "Green blink")); WARN_ON(gpio_request(S3C2410_GPJ(6), "LED blink")); gpio_direction_output(S3C2410_GPA(3), 0); gpio_direction_output(S3C2410_GPA(4), 0); gpio_direction_output(S3C2410_GPJ(6), 0); platform_add_devices(rx1950_devices, ARRAY_SIZE(rx1950_devices)); i2c_register_board_info(0, rx1950_i2c_devices, ARRAY_SIZE(rx1950_i2c_devices)); } /* H1940 and RX3715 need to reserve this for suspend */ static void __init rx1950_reserve(void) { memblock_reserve(0x30003000, 0x1000); memblock_reserve(0x30081000, 0x1000); } MACHINE_START(RX1950, "HP iPAQ RX1950") /* Maintainers: Vasily Khoruzhick */ .atag_offset = 0x100, .map_io = rx1950_map_io, .reserve = rx1950_reserve, .init_irq = s3c2442_init_irq, .init_machine = rx1950_init_machine, .init_time = samsung_timer_init, .restart = s3c244x_restart, MACHINE_END