/* * linux/arch/arm/mach-at91/board-sam9261ek.c * * Copyright (C) 2005 SAN People * Copyright (C) 2006 Atmel * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <linux/types.h> #include <linux/init.h> #include <linux/mm.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> #include <linux/spi/ads7846.h> #include <linux/dm9000.h> #include <linux/fb.h> #include <linux/gpio_keys.h> #include <linux/input.h> #include <video/atmel_lcdc.h> #include <asm/hardware.h> #include <asm/setup.h> #include <asm/mach-types.h> #include <asm/irq.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <asm/mach/irq.h> #include <asm/arch/board.h> #include <asm/arch/gpio.h> #include <asm/arch/at91sam926x_mc.h> #include "generic.h" /* * Serial port configuration. * 0 .. 2 = USART0 .. USART2 * 3 = DBGU */ static struct at91_uart_config __initdata ek_uart_config = { .console_tty = 0, /* ttyS0 */ .nr_tty = 1, .tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */ }; static void __init ek_map_io(void) { /* Initialize processor: 18.432 MHz crystal */ at91sam9261_initialize(18432000); /* Setup the LEDs */ at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14); /* Setup the serial ports and console */ at91_init_serial(&ek_uart_config); } static void __init ek_init_irq(void) { at91sam9261_init_interrupts(NULL); } /* * DM9000 ethernet device */ #if defined(CONFIG_DM9000) static struct resource at91sam9261_dm9000_resource[] = { [0] = { .start = AT91_CHIPSELECT_2, .end = AT91_CHIPSELECT_2 + 3, .flags = IORESOURCE_MEM }, [1] = { .start = AT91_CHIPSELECT_2 + 0x44, .end = AT91_CHIPSELECT_2 + 0xFF, .flags = IORESOURCE_MEM }, [2] = { .start = AT91_PIN_PC11, .end = AT91_PIN_PC11, .flags = IORESOURCE_IRQ } }; static struct dm9000_plat_data dm9000_platdata = { .flags = DM9000_PLATF_16BITONLY, }; static struct platform_device at91sam9261_dm9000_device = { .name = "dm9000", .id = 0, .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource), .resource = at91sam9261_dm9000_resource, .dev = { .platform_data = &dm9000_platdata, } }; static void __init ek_add_device_dm9000(void) { /* * Configure Chip-Select 2 on SMC for the DM9000. * Note: These timings were calculated for MASTER_CLOCK = 100000000 * according to the DM9000 timings. */ at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0)); at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8)); at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16)); at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1)); /* Configure Reset signal as output */ at91_set_gpio_output(AT91_PIN_PC10, 0); /* Configure Interrupt pin as input, no pull-up */ at91_set_gpio_input(AT91_PIN_PC11, 0); platform_device_register(&at91sam9261_dm9000_device); } #else static void __init ek_add_device_dm9000(void) {} #endif /* CONFIG_DM9000 */ /* * USB Host Port */ static struct at91_usbh_data __initdata ek_usbh_data = { .ports = 2, }; /* * USB Device Port */ static struct at91_udc_data __initdata ek_udc_data = { .vbus_pin = AT91_PIN_PB29, .pullup_pin = 0, /* pull-up driven by UDC */ }; /* * MCI (SD/MMC) */ static struct at91_mmc_data __initdata ek_mmc_data = { .wire4 = 1, // .det_pin = ... not connected // .wp_pin = ... not connected // .vcc_pin = ... not connected }; /* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { { .name = "Partition 1", .offset = 0, .size = 256 * 1024, }, { .name = "Partition 2", .offset = 256 * 1024 , .size = MTDPART_SIZ_FULL, }, }; static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) { *num_partitions = ARRAY_SIZE(ek_nand_partition); return ek_nand_partition; } static struct at91_nand_data __initdata ek_nand_data = { .ale = 22, .cle = 21, // .det_pin = ... not connected .rdy_pin = AT91_PIN_PC15, .enable_pin = AT91_PIN_PC14, .partition_info = nand_partitions, #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16) .bus_width_16 = 1, #else .bus_width_16 = 0, #endif }; /* * ADS7846 Touchscreen */ #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) static int ads7843_pendown_state(void) { return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */ } static struct ads7846_platform_data ads_info = { .model = 7843, .x_min = 150, .x_max = 3830, .y_min = 190, .y_max = 3830, .vref_delay_usecs = 100, .x_plate_ohms = 450, .y_plate_ohms = 250, .pressure_max = 15000, .debounce_max = 1, .debounce_rep = 0, .debounce_tol = (~0), .get_pendown_state = ads7843_pendown_state, }; static void __init ek_add_device_ts(void) { at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */ at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */ } #else static void __init ek_add_device_ts(void) {} #endif /* * SPI devices */ static struct spi_board_info ek_spi_devices[] = { { /* DataFlash chip */ .modalias = "mtd_dataflash", .chip_select = 0, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) { .modalias = "ads7846", .chip_select = 2, .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ .bus_num = 0, .platform_data = &ads_info, .irq = AT91SAM9261_ID_IRQ0, }, #endif #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */ .modalias = "mtd_dataflash", .chip_select = 3, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) { /* AT73C213 DAC */ .modalias = "at73c213", .chip_select = 3, .max_speed_hz = 10 * 1000 * 1000, .bus_num = 0, }, #endif }; /* * LCD Controller */ #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) static struct fb_videomode at91_tft_vga_modes[] = { { .name = "TX09D50VM1CCA @ 60", .refresh = 60, .xres = 240, .yres = 320, .pixclock = KHZ2PICOS(4965), .left_margin = 1, .right_margin = 33, .upper_margin = 1, .lower_margin = 0, .hsync_len = 5, .vsync_len = 1, .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, .vmode = FB_VMODE_NONINTERLACED, }, }; static struct fb_monspecs at91fb_default_monspecs = { .manufacturer = "HIT", .monitor = "TX09D50VM1CCA", .modedb = at91_tft_vga_modes, .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), .hfmin = 15000, .hfmax = 64000, .vfmin = 50, .vfmax = 150, }; #define AT91SAM9261_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ | ATMEL_LCDC_DISTYPE_TFT \ | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) static void at91_lcdc_power_control(int on) { if (on) at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */ else at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */ } /* Driver datas */ static struct atmel_lcdfb_info __initdata ek_lcdc_data = { .default_bpp = 16, .default_dmacon = ATMEL_LCDC_DMAEN, .default_lcdcon2 = AT91SAM9261_DEFAULT_LCDCON2, .default_monspecs = &at91fb_default_monspecs, .atmel_lcdfb_power_control = at91_lcdc_power_control, .guard_time = 1, }; #else static struct atmel_lcdfb_info __initdata ek_lcdc_data; #endif /* * GPIO Buttons */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) static struct gpio_keys_button ek_buttons[] = { { .gpio = AT91_PIN_PA27, .keycode = BTN_0, .desc = "Button 0", .active_low = 1, }, { .gpio = AT91_PIN_PA26, .keycode = BTN_1, .desc = "Button 1", .active_low = 1, }, { .gpio = AT91_PIN_PA25, .keycode = BTN_2, .desc = "Button 2", .active_low = 1, }, { .gpio = AT91_PIN_PA24, .keycode = BTN_3, .desc = "Button 3", .active_low = 1, } }; static struct gpio_keys_platform_data ek_button_data = { .buttons = ek_buttons, .nbuttons = ARRAY_SIZE(ek_buttons), }; static struct platform_device ek_button_device = { .name = "gpio-keys", .id = -1, .num_resources = 0, .dev = { .platform_data = &ek_button_data, } }; static void __init ek_add_device_buttons(void) { at91_set_gpio_input(AT91_PIN_PA27, 0); /* btn0 */ at91_set_deglitch(AT91_PIN_PA27, 1); at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */ at91_set_deglitch(AT91_PIN_PA26, 1); at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */ at91_set_deglitch(AT91_PIN_PA25, 1); at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */ at91_set_deglitch(AT91_PIN_PA24, 1); platform_device_register(&ek_button_device); } #else static void __init ek_add_device_buttons(void) {} #endif static void __init ek_board_init(void) { /* Serial */ at91_add_device_serial(); /* USB Host */ at91_add_device_usbh(&ek_usbh_data); /* USB Device */ at91_add_device_udc(&ek_udc_data); /* I2C */ at91_add_device_i2c(NULL, 0); /* NAND */ at91_add_device_nand(&ek_nand_data); /* DM9000 ethernet */ ek_add_device_dm9000(); /* spi0 and mmc/sd share the same PIO pins */ #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) /* SPI */ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); /* Touchscreen */ ek_add_device_ts(); #else /* MMC */ at91_add_device_mmc(0, &ek_mmc_data); #endif /* LCD Controller */ at91_add_device_lcdc(&ek_lcdc_data); /* Push Buttons */ ek_add_device_buttons(); } MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK") /* Maintainer: Atmel */ .phys_io = AT91_BASE_SYS, .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc, .boot_params = AT91_SDRAM_BASE + 0x100, .timer = &at91sam926x_timer, .map_io = ek_map_io, .init_irq = ek_init_irq, .init_machine = ek_board_init, MACHINE_END