/* linux/arch/arm/mach-s3c2440/mach-mini2440.c * * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com> * Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk> * and modifications by SBZ <sbz@spgui.org> and * Weibing <http://weibing.blogbus.com> and * Michel Pollet <buserror@gmail.com> * * For product information, visit http://code.google.com/p/mini2440/ * * 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/init.h> #include <linux/gpio.h> #include <linux/input.h> #include <linux/io.h> #include <linux/serial_core.h> #include <linux/dm9000.h> #include <linux/i2c/at24.h> #include <linux/platform_device.h> #include <linux/gpio_keys.h> #include <linux/i2c.h> #include <linux/mmc/host.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/hardware.h> #include <mach/fb.h> #include <asm/mach-types.h> #include <plat/regs-serial.h> #include <mach/regs-gpio.h> #include <mach/leds-gpio.h> #include <mach/regs-mem.h> #include <mach/regs-lcd.h> #include <mach/irqs.h> #include <plat/nand.h> #include <plat/iic.h> #include <plat/mci.h> #include <plat/udc.h> #include <linux/mtd/mtd.h> #include <linux/mtd/nand.h> #include <linux/mtd/nand_ecc.h> #include <linux/mtd/partitions.h> #include <plat/clock.h> #include <plat/devs.h> #include <plat/cpu.h> #include <sound/s3c24xx_uda134x.h> #define MACH_MINI2440_DM9K_BASE (S3C2410_CS4 + 0x300) static struct map_desc mini2440_iodesc[] __initdata = { /* nothing to declare, move along */ }; #define UCON S3C2410_UCON_DEFAULT #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE static struct s3c2410_uartcfg mini2440_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, }, }; /* USB device UDC support */ static void mini2440_udc_pullup(enum s3c2410_udc_cmd_e cmd) { pr_debug("udc: pullup(%d)\n", cmd); switch (cmd) { case S3C2410_UDC_P_ENABLE : s3c2410_gpio_setpin(S3C2410_GPC(5), 1); break; case S3C2410_UDC_P_DISABLE : s3c2410_gpio_setpin(S3C2410_GPC(5), 0); break; case S3C2410_UDC_P_RESET : break; default: break; } } static struct s3c2410_udc_mach_info mini2440_udc_cfg __initdata = { .udc_command = mini2440_udc_pullup, }; /* LCD timing and setup */ /* * This macro simplifies the table bellow */ #define _LCD_DECLARE(_clock,_xres,margin_left,margin_right,hsync, \ _yres,margin_top,margin_bottom,vsync, refresh) \ .width = _xres, \ .xres = _xres, \ .height = _yres, \ .yres = _yres, \ .left_margin = margin_left, \ .right_margin = margin_right, \ .upper_margin = margin_top, \ .lower_margin = margin_bottom, \ .hsync_len = hsync, \ .vsync_len = vsync, \ .pixclock = ((_clock*100000000000LL) / \ ((refresh) * \ (hsync + margin_left + _xres + margin_right) * \ (vsync + margin_top + _yres + margin_bottom))), \ .bpp = 16,\ .type = (S3C2410_LCDCON1_TFT16BPP |\ S3C2410_LCDCON1_TFT) static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = { [0] = { /* mini2440 + 3.5" TFT + touchscreen */ _LCD_DECLARE( 7, /* The 3.5 is quite fast */ 240, 21, 38, 6, /* x timing */ 320, 4, 4, 2, /* y timing */ 60), /* refresh rate */ .lcdcon5 = (S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME | S3C2410_LCDCON5_INVVDEN | S3C2410_LCDCON5_PWREN), }, [1] = { /* mini2440 + 7" TFT + touchscreen */ _LCD_DECLARE( 10, /* the 7" runs slower */ 800, 40, 40, 48, /* x timing */ 480, 29, 3, 3, /* y timing */ 50), /* refresh rate */ .lcdcon5 = (S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_INVVLINE | S3C2410_LCDCON5_INVVFRAME | S3C2410_LCDCON5_PWREN), }, /* The VGA shield can outout at several resolutions. All share * the same timings, however, anything smaller than 1024x768 * will only be displayed in the top left corner of a 1024x768 * XGA output unless you add optional dip switches to the shield. * Therefore timings for other resolutions have been ommited here. */ [2] = { _LCD_DECLARE( 10, 1024, 1, 2, 2, /* y timing */ 768, 200, 16, 16, /* x timing */ 24), /* refresh rate, maximum stable, tested with the FPGA shield */ .lcdcon5 = (S3C2410_LCDCON5_FRM565 | S3C2410_LCDCON5_HWSWP), }, }; /* todo - put into gpio header */ #define S3C2410_GPCCON_MASK(x) (3 << ((x) * 2)) #define S3C2410_GPDCON_MASK(x) (3 << ((x) * 2)) static struct s3c2410fb_mach_info mini2440_fb_info __initdata = { .displays = &mini2440_lcd_cfg[0], /* not constant! see init */ .num_displays = 1, .default_display = 0, /* Enable VD[2..7], VD[10..15], VD[18..23] and VCLK, syncs, VDEN * and disable the pull down resistors on pins we are using for LCD * data. */ .gpcup = (0xf << 1) | (0x3f << 10), .gpccon = (S3C2410_GPC1_VCLK | S3C2410_GPC2_VLINE | S3C2410_GPC3_VFRAME | S3C2410_GPC4_VM | S3C2410_GPC10_VD2 | S3C2410_GPC11_VD3 | S3C2410_GPC12_VD4 | S3C2410_GPC13_VD5 | S3C2410_GPC14_VD6 | S3C2410_GPC15_VD7), .gpccon_mask = (S3C2410_GPCCON_MASK(1) | S3C2410_GPCCON_MASK(2) | S3C2410_GPCCON_MASK(3) | S3C2410_GPCCON_MASK(4) | S3C2410_GPCCON_MASK(10) | S3C2410_GPCCON_MASK(11) | S3C2410_GPCCON_MASK(12) | S3C2410_GPCCON_MASK(13) | S3C2410_GPCCON_MASK(14) | S3C2410_GPCCON_MASK(15)), .gpdup = (0x3f << 2) | (0x3f << 10), .gpdcon = (S3C2410_GPD2_VD10 | S3C2410_GPD3_VD11 | S3C2410_GPD4_VD12 | S3C2410_GPD5_VD13 | S3C2410_GPD6_VD14 | S3C2410_GPD7_VD15 | S3C2410_GPD10_VD18 | S3C2410_GPD11_VD19 | S3C2410_GPD12_VD20 | S3C2410_GPD13_VD21 | S3C2410_GPD14_VD22 | S3C2410_GPD15_VD23), .gpdcon_mask = (S3C2410_GPDCON_MASK(2) | S3C2410_GPDCON_MASK(3) | S3C2410_GPDCON_MASK(4) | S3C2410_GPDCON_MASK(5) | S3C2410_GPDCON_MASK(6) | S3C2410_GPDCON_MASK(7) | S3C2410_GPDCON_MASK(10) | S3C2410_GPDCON_MASK(11)| S3C2410_GPDCON_MASK(12) | S3C2410_GPDCON_MASK(13)| S3C2410_GPDCON_MASK(14) | S3C2410_GPDCON_MASK(15)), }; /* MMC/SD */ static struct s3c24xx_mci_pdata mini2440_mmc_cfg __initdata = { .gpio_detect = S3C2410_GPG(8), .gpio_wprotect = S3C2410_GPH(8), .set_power = NULL, .ocr_avail = MMC_VDD_32_33|MMC_VDD_33_34, }; /* NAND Flash on MINI2440 board */ static struct mtd_partition mini2440_default_nand_part[] __initdata = { [0] = { .name = "u-boot", .size = SZ_256K, .offset = 0, }, [1] = { .name = "u-boot-env", .size = SZ_128K, .offset = SZ_256K, }, [2] = { .name = "kernel", /* 5 megabytes, for a kernel with no modules * or a uImage with a ramdisk attached */ .size = 0x00500000, .offset = SZ_256K + SZ_128K, }, [3] = { .name = "root", .offset = SZ_256K + SZ_128K + 0x00500000, .size = MTDPART_SIZ_FULL, }, }; static struct s3c2410_nand_set mini2440_nand_sets[] __initdata = { [0] = { .name = "nand", .nr_chips = 1, .nr_partitions = ARRAY_SIZE(mini2440_default_nand_part), .partitions = mini2440_default_nand_part, .flash_bbt = 1, /* we use u-boot to create a BBT */ }, }; static struct s3c2410_platform_nand mini2440_nand_info __initdata = { .tacls = 0, .twrph0 = 25, .twrph1 = 15, .nr_sets = ARRAY_SIZE(mini2440_nand_sets), .sets = mini2440_nand_sets, .ignore_unset_ecc = 1, }; /* DM9000AEP 10/100 ethernet controller */ static struct resource mini2440_dm9k_resource[] = { [0] = { .start = MACH_MINI2440_DM9K_BASE, .end = MACH_MINI2440_DM9K_BASE + 3, .flags = IORESOURCE_MEM }, [1] = { .start = MACH_MINI2440_DM9K_BASE + 4, .end = MACH_MINI2440_DM9K_BASE + 7, .flags = IORESOURCE_MEM }, [2] = { .start = IRQ_EINT7, .end = IRQ_EINT7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, } }; /* * The DM9000 has no eeprom, and it's MAC address is set by * the bootloader before starting the kernel. */ static struct dm9000_plat_data mini2440_dm9k_pdata = { .flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM), }; static struct platform_device mini2440_device_eth = { .name = "dm9000", .id = -1, .num_resources = ARRAY_SIZE(mini2440_dm9k_resource), .resource = mini2440_dm9k_resource, .dev = { .platform_data = &mini2440_dm9k_pdata, }, }; /* CON5 * +--+ /-----\ * | | | | * | | | BAT | * | | \_____/ * | | * | | +----+ +----+ * | | | K5 | | K1 | * | | +----+ +----+ * | | +----+ +----+ * | | | K4 | | K2 | * | | +----+ +----+ * | | +----+ +----+ * | | | K6 | | K3 | * | | +----+ +----+ * ..... */ static struct gpio_keys_button mini2440_buttons[] = { { .gpio = S3C2410_GPG(0), /* K1 */ .code = KEY_F1, .desc = "Button 1", .active_low = 1, }, { .gpio = S3C2410_GPG(3), /* K2 */ .code = KEY_F2, .desc = "Button 2", .active_low = 1, }, { .gpio = S3C2410_GPG(5), /* K3 */ .code = KEY_F3, .desc = "Button 3", .active_low = 1, }, { .gpio = S3C2410_GPG(6), /* K4 */ .code = KEY_POWER, .desc = "Power", .active_low = 1, }, { .gpio = S3C2410_GPG(7), /* K5 */ .code = KEY_F5, .desc = "Button 5", .active_low = 1, }, #if 0 /* this pin is also known as TCLK1 and seems to already * marked as "in use" somehow in the kernel -- possibly wrongly */ { .gpio = S3C2410_GPG(11), /* K6 */ .code = KEY_F6, .desc = "Button 6", .active_low = 1, }, #endif }; static struct gpio_keys_platform_data mini2440_button_data = { .buttons = mini2440_buttons, .nbuttons = ARRAY_SIZE(mini2440_buttons), }; static struct platform_device mini2440_button_device = { .name = "gpio-keys", .id = -1, .dev = { .platform_data = &mini2440_button_data, } }; /* LEDS */ static struct s3c24xx_led_platdata mini2440_led1_pdata = { .name = "led1", .gpio = S3C2410_GPB(5), .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE, .def_trigger = "heartbeat", }; static struct s3c24xx_led_platdata mini2440_led2_pdata = { .name = "led2", .gpio = S3C2410_GPB(6), .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE, .def_trigger = "nand-disk", }; static struct s3c24xx_led_platdata mini2440_led3_pdata = { .name = "led3", .gpio = S3C2410_GPB(7), .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE, .def_trigger = "mmc0", }; static struct s3c24xx_led_platdata mini2440_led4_pdata = { .name = "led4", .gpio = S3C2410_GPB(8), .flags = S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE, .def_trigger = "", }; static struct s3c24xx_led_platdata mini2440_led_backlight_pdata = { .name = "backlight", .gpio = S3C2410_GPG(4), .def_trigger = "backlight", }; static struct platform_device mini2440_led1 = { .name = "s3c24xx_led", .id = 1, .dev = { .platform_data = &mini2440_led1_pdata, }, }; static struct platform_device mini2440_led2 = { .name = "s3c24xx_led", .id = 2, .dev = { .platform_data = &mini2440_led2_pdata, }, }; static struct platform_device mini2440_led3 = { .name = "s3c24xx_led", .id = 3, .dev = { .platform_data = &mini2440_led3_pdata, }, }; static struct platform_device mini2440_led4 = { .name = "s3c24xx_led", .id = 4, .dev = { .platform_data = &mini2440_led4_pdata, }, }; static struct platform_device mini2440_led_backlight = { .name = "s3c24xx_led", .id = 5, .dev = { .platform_data = &mini2440_led_backlight_pdata, }, }; /* AUDIO */ static struct s3c24xx_uda134x_platform_data mini2440_audio_pins = { .l3_clk = S3C2410_GPB(4), .l3_mode = S3C2410_GPB(2), .l3_data = S3C2410_GPB(3), .model = UDA134X_UDA1341 }; static struct platform_device mini2440_audio = { .name = "s3c24xx_uda134x", .id = 0, .dev = { .platform_data = &mini2440_audio_pins, }, }; /* * I2C devices */ static struct at24_platform_data at24c08 = { .byte_len = SZ_8K / 8, .page_size = 16, }; static struct i2c_board_info mini2440_i2c_devs[] __initdata = { { I2C_BOARD_INFO("24c08", 0x50), .platform_data = &at24c08, }, }; static struct platform_device *mini2440_devices[] __initdata = { &s3c_device_usb, &s3c_device_wdt, /* &s3c_device_adc,*/ /* ADC doesn't like living with touchscreen ! */ &s3c_device_i2c0, &s3c_device_rtc, &s3c_device_usbgadget, &mini2440_device_eth, &mini2440_led1, &mini2440_led2, &mini2440_led3, &mini2440_led4, &mini2440_button_device, &s3c_device_nand, &s3c_device_sdi, &s3c_device_iis, &mini2440_audio, /* &s3c_device_timer[0],*/ /* buzzer pwm, no API for it */ /* remaining devices are optional */ }; static void __init mini2440_map_io(void) { s3c24xx_init_io(mini2440_iodesc, ARRAY_SIZE(mini2440_iodesc)); s3c24xx_init_clocks(12000000); s3c24xx_init_uarts(mini2440_uartcfgs, ARRAY_SIZE(mini2440_uartcfgs)); s3c_device_sdi.dev.platform_data = &mini2440_mmc_cfg; } /* * mini2440_features string * * t = Touchscreen present * b = backlight control * c = camera [TODO] * 0-9 LCD configuration * */ static char mini2440_features_str[12] __initdata = "0tb"; static int __init mini2440_features_setup(char *str) { if (str) strlcpy(mini2440_features_str, str, sizeof(mini2440_features_str)); return 1; } __setup("mini2440=", mini2440_features_setup); #define FEATURE_SCREEN (1 << 0) #define FEATURE_BACKLIGHT (1 << 1) #define FEATURE_TOUCH (1 << 2) #define FEATURE_CAMERA (1 << 3) struct mini2440_features_t { int count; int done; int lcd_index; struct platform_device *optional[8]; }; static void mini2440_parse_features( struct mini2440_features_t * features, const char * features_str ) { const char * fp = features_str; features->count = 0; features->done = 0; features->lcd_index = -1; while (*fp) { char f = *fp++; switch (f) { case '0'...'9': /* tft screen */ if (features->done & FEATURE_SCREEN) { printk(KERN_INFO "MINI2440: '%c' ignored, " "screen type already set\n", f); } else { int li = f - '0'; if (li >= ARRAY_SIZE(mini2440_lcd_cfg)) printk(KERN_INFO "MINI2440: " "'%c' out of range LCD mode\n", f); else { features->optional[features->count++] = &s3c_device_lcd; features->lcd_index = li; } } features->done |= FEATURE_SCREEN; break; case 'b': if (features->done & FEATURE_BACKLIGHT) printk(KERN_INFO "MINI2440: '%c' ignored, " "backlight already set\n", f); else { features->optional[features->count++] = &mini2440_led_backlight; } features->done |= FEATURE_BACKLIGHT; break; case 't': printk(KERN_INFO "MINI2440: '%c' ignored, " "touchscreen not compiled in\n", f); break; case 'c': if (features->done & FEATURE_CAMERA) printk(KERN_INFO "MINI2440: '%c' ignored, " "camera already registered\n", f); else features->optional[features->count++] = &s3c_device_camif; features->done |= FEATURE_CAMERA; break; } } } static void __init mini2440_init(void) { struct mini2440_features_t features = { 0 }; int i; printk(KERN_INFO "MINI2440: Option string mini2440=%s\n", mini2440_features_str); /* Parse the feature string */ mini2440_parse_features(&features, mini2440_features_str); /* turn LCD on */ s3c2410_gpio_cfgpin(S3C2410_GPC(0), S3C2410_GPC0_LEND); /* Turn the backlight early on */ s3c2410_gpio_setpin(S3C2410_GPG(4), 1); s3c2410_gpio_cfgpin(S3C2410_GPG(4), S3C2410_GPIO_OUTPUT); /* remove pullup on optional PWM backlight -- unused on 3.5 and 7"s */ s3c2410_gpio_pullup(S3C2410_GPB(1), 0); s3c2410_gpio_setpin(S3C2410_GPB(1), 0); s3c2410_gpio_cfgpin(S3C2410_GPB(1), S3C2410_GPIO_INPUT); /* Make sure the D+ pullup pin is output */ s3c2410_gpio_cfgpin(S3C2410_GPC(5), S3C2410_GPIO_OUTPUT); /* mark the key as input, without pullups (there is one on the board) */ for (i = 0; i < ARRAY_SIZE(mini2440_buttons); i++) { s3c2410_gpio_pullup(mini2440_buttons[i].gpio, 0); s3c2410_gpio_cfgpin(mini2440_buttons[i].gpio, S3C2410_GPIO_INPUT); } if (features.lcd_index != -1) { int li; mini2440_fb_info.displays = &mini2440_lcd_cfg[features.lcd_index]; printk(KERN_INFO "MINI2440: LCD"); for (li = 0; li < ARRAY_SIZE(mini2440_lcd_cfg); li++) if (li == features.lcd_index) printk(" [%d:%dx%d]", li, mini2440_lcd_cfg[li].width, mini2440_lcd_cfg[li].height); else printk(" %d:%dx%d", li, mini2440_lcd_cfg[li].width, mini2440_lcd_cfg[li].height); printk("\n"); s3c24xx_fb_set_platdata(&mini2440_fb_info); } s3c24xx_udc_set_platdata(&mini2440_udc_cfg); s3c_nand_set_platdata(&mini2440_nand_info); s3c_i2c0_set_platdata(NULL); i2c_register_board_info(0, mini2440_i2c_devs, ARRAY_SIZE(mini2440_i2c_devs)); platform_add_devices(mini2440_devices, ARRAY_SIZE(mini2440_devices)); if (features.count) /* the optional features */ platform_add_devices(features.optional, features.count); } MACHINE_START(MINI2440, "MINI2440") /* Maintainer: Michel Pollet <buserror@gmail.com> */ .phys_io = S3C2410_PA_UART, .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, .boot_params = S3C2410_SDRAM_PA + 0x100, .map_io = mini2440_map_io, .init_machine = mini2440_init, .init_irq = s3c24xx_init_irq, .timer = &s3c24xx_timer, MACHINE_END