| /* mach-hmt.c - Platform code for Airgoo HMT |
| * |
| * Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk> |
| * |
| * 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/init.h> |
| #include <linux/serial_core.h> |
| #include <linux/serial_s3c.h> |
| #include <linux/platform_device.h> |
| #include <linux/io.h> |
| #include <linux/i2c.h> |
| #include <linux/fb.h> |
| #include <linux/gpio.h> |
| #include <linux/delay.h> |
| #include <linux/leds.h> |
| #include <linux/pwm_backlight.h> |
| #include <linux/mtd/mtd.h> |
| #include <linux/mtd/partitions.h> |
| |
| #include <asm/mach/arch.h> |
| #include <asm/mach/map.h> |
| #include <asm/mach/irq.h> |
| |
| #include <video/samsung_fimd.h> |
| #include <mach/hardware.h> |
| #include <mach/map.h> |
| |
| #include <asm/irq.h> |
| #include <asm/mach-types.h> |
| |
| #include <linux/platform_data/i2c-s3c2410.h> |
| #include <mach/gpio-samsung.h> |
| #include <plat/fb.h> |
| #include <linux/platform_data/mtd-nand-s3c2410.h> |
| |
| #include <plat/devs.h> |
| #include <plat/cpu.h> |
| #include <plat/samsung-time.h> |
| |
| #include "common.h" |
| |
| #define UCON S3C2410_UCON_DEFAULT |
| #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE) |
| #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE) |
| |
| static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = { |
| [0] = { |
| .hwport = 0, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| [1] = { |
| .hwport = 1, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| [2] = { |
| .hwport = 2, |
| .flags = 0, |
| .ucon = UCON, |
| .ulcon = ULCON, |
| .ufcon = UFCON, |
| }, |
| }; |
| |
| static int hmt_bl_init(struct device *dev) |
| { |
| int ret; |
| |
| ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable"); |
| if (!ret) |
| ret = gpio_direction_output(S3C64XX_GPB(4), 0); |
| |
| return ret; |
| } |
| |
| static int hmt_bl_notify(struct device *dev, int brightness) |
| { |
| /* |
| * translate from CIELUV/CIELAB L*->brightness, E.G. from |
| * perceived luminance to light output. Assumes range 0..25600 |
| */ |
| if (brightness < 0x800) { |
| /* Y = Yn * L / 903.3 */ |
| brightness = (100*256 * brightness + 231245/2) / 231245; |
| } else { |
| /* Y = Yn * ((L + 16) / 116 )^3 */ |
| int t = (brightness*4 + 16*1024 + 58)/116; |
| brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000); |
| } |
| |
| gpio_set_value(S3C64XX_GPB(4), brightness); |
| |
| return brightness; |
| } |
| |
| static void hmt_bl_exit(struct device *dev) |
| { |
| gpio_free(S3C64XX_GPB(4)); |
| } |
| |
| static struct platform_pwm_backlight_data hmt_backlight_data = { |
| .pwm_id = 1, |
| .max_brightness = 100 * 256, |
| .dft_brightness = 40 * 256, |
| .pwm_period_ns = 1000000000 / (100 * 256 * 20), |
| .enable_gpio = -1, |
| .init = hmt_bl_init, |
| .notify = hmt_bl_notify, |
| .exit = hmt_bl_exit, |
| |
| }; |
| |
| static struct platform_device hmt_backlight_device = { |
| .name = "pwm-backlight", |
| .dev = { |
| .parent = &samsung_device_pwm.dev, |
| .platform_data = &hmt_backlight_data, |
| }, |
| }; |
| |
| static struct s3c_fb_pd_win hmt_fb_win0 = { |
| .max_bpp = 32, |
| .default_bpp = 16, |
| .xres = 800, |
| .yres = 480, |
| }; |
| |
| static struct fb_videomode hmt_lcd_timing = { |
| .left_margin = 8, |
| .right_margin = 13, |
| .upper_margin = 7, |
| .lower_margin = 5, |
| .hsync_len = 3, |
| .vsync_len = 1, |
| .xres = 800, |
| .yres = 480, |
| }; |
| |
| /* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */ |
| static struct s3c_fb_platdata hmt_lcd_pdata __initdata = { |
| .setup_gpio = s3c64xx_fb_gpio_setup_24bpp, |
| .vtiming = &hmt_lcd_timing, |
| .win[0] = &hmt_fb_win0, |
| .vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB, |
| .vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC, |
| }; |
| |
| static struct mtd_partition hmt_nand_part[] = { |
| [0] = { |
| .name = "uboot", |
| .size = SZ_512K, |
| .offset = 0, |
| }, |
| [1] = { |
| .name = "uboot-env1", |
| .size = SZ_256K, |
| .offset = SZ_512K, |
| }, |
| [2] = { |
| .name = "uboot-env2", |
| .size = SZ_256K, |
| .offset = SZ_512K + SZ_256K, |
| }, |
| [3] = { |
| .name = "kernel", |
| .size = SZ_2M, |
| .offset = SZ_1M, |
| }, |
| [4] = { |
| .name = "rootfs", |
| .size = MTDPART_SIZ_FULL, |
| .offset = SZ_1M + SZ_2M, |
| }, |
| }; |
| |
| static struct s3c2410_nand_set hmt_nand_sets[] = { |
| [0] = { |
| .name = "nand", |
| .nr_chips = 1, |
| .nr_partitions = ARRAY_SIZE(hmt_nand_part), |
| .partitions = hmt_nand_part, |
| }, |
| }; |
| |
| static struct s3c2410_platform_nand hmt_nand_info = { |
| .tacls = 25, |
| .twrph0 = 55, |
| .twrph1 = 40, |
| .nr_sets = ARRAY_SIZE(hmt_nand_sets), |
| .sets = hmt_nand_sets, |
| }; |
| |
| static struct gpio_led hmt_leds[] = { |
| { /* left function keys */ |
| .name = "left:blue", |
| .gpio = S3C64XX_GPO(12), |
| .default_trigger = "default-on", |
| }, |
| { /* right function keys - red */ |
| .name = "right:red", |
| .gpio = S3C64XX_GPO(13), |
| }, |
| { /* right function keys - green */ |
| .name = "right:green", |
| .gpio = S3C64XX_GPO(14), |
| }, |
| { /* right function keys - blue */ |
| .name = "right:blue", |
| .gpio = S3C64XX_GPO(15), |
| .default_trigger = "default-on", |
| }, |
| }; |
| |
| static struct gpio_led_platform_data hmt_led_data = { |
| .num_leds = ARRAY_SIZE(hmt_leds), |
| .leds = hmt_leds, |
| }; |
| |
| static struct platform_device hmt_leds_device = { |
| .name = "leds-gpio", |
| .id = -1, |
| .dev.platform_data = &hmt_led_data, |
| }; |
| |
| static struct map_desc hmt_iodesc[] = {}; |
| |
| static struct platform_device *hmt_devices[] __initdata = { |
| &s3c_device_i2c0, |
| &s3c_device_nand, |
| &s3c_device_fb, |
| &s3c_device_ohci, |
| &samsung_device_pwm, |
| &hmt_backlight_device, |
| &hmt_leds_device, |
| }; |
| |
| static void __init hmt_map_io(void) |
| { |
| s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc)); |
| s3c64xx_set_xtal_freq(12000000); |
| s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs)); |
| samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4); |
| } |
| |
| static void __init hmt_machine_init(void) |
| { |
| s3c_i2c0_set_platdata(NULL); |
| s3c_fb_set_platdata(&hmt_lcd_pdata); |
| s3c_nand_set_platdata(&hmt_nand_info); |
| |
| gpio_request(S3C64XX_GPC(7), "usb power"); |
| gpio_direction_output(S3C64XX_GPC(7), 0); |
| gpio_request(S3C64XX_GPM(0), "usb power"); |
| gpio_direction_output(S3C64XX_GPM(0), 1); |
| gpio_request(S3C64XX_GPK(7), "usb power"); |
| gpio_direction_output(S3C64XX_GPK(7), 1); |
| gpio_request(S3C64XX_GPF(13), "usb power"); |
| gpio_direction_output(S3C64XX_GPF(13), 1); |
| |
| platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices)); |
| } |
| |
| MACHINE_START(HMT, "Airgoo-HMT") |
| /* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */ |
| .atag_offset = 0x100, |
| .init_irq = s3c6410_init_irq, |
| .map_io = hmt_map_io, |
| .init_machine = hmt_machine_init, |
| .init_late = s3c64xx_init_late, |
| .init_time = samsung_timer_init, |
| .restart = s3c64xx_restart, |
| MACHINE_END |