/* * linux/arch/arm/mach-at91/board-sam9263ek.c * * Copyright (C) 2005 SAN People * Copyright (C) 2007 Atmel Corporation. * * 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/gpio.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/platform_data/at24.h> #include <linux/fb.h> #include <linux/gpio_keys.h> #include <linux/input.h> #include <linux/leds.h> #include <linux/pwm.h> #include <linux/leds_pwm.h> #include <video/atmel_lcdc.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 <mach/hardware.h> #include <mach/at91sam9_smc.h> #include <mach/system_rev.h> #include "at91_aic.h" #include "board.h" #include "sam9_smc.h" #include "generic.h" #include "gpio.h" static void __init ek_init_early(void) { /* Initialize processor: 16.367 MHz crystal */ at91_initialize(16367660); } /* * USB Host port */ static struct at91_usbh_data __initdata ek_usbh_data = { .ports = 2, .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 }, .vbus_pin_active_low = {1, 1}, .overcurrent_pin= {-EINVAL, -EINVAL}, }; /* * USB Device port */ static struct at91_udc_data __initdata ek_udc_data = { .vbus_pin = AT91_PIN_PA25, .pullup_pin = -EINVAL, /* pull-up driven by UDC */ }; /* * 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_PA15); /* 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_PA15, 1); /* External IRQ1, with pullup */ at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */ } #else static void __init ek_add_device_ts(void) {} #endif /* * SPI devices. */ static struct spi_board_info ek_spi_devices[] = { #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) { /* DataFlash card */ .modalias = "mtd_dataflash", .chip_select = 0, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, #endif #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE) { .modalias = "ads7846", .chip_select = 3, .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */ .bus_num = 0, .platform_data = &ads_info, .irq = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1, }, #endif }; /* * MCI (SD/MMC) */ static struct mci_platform_data __initdata mci1_data = { .slot[0] = { .bus_width = 4, .detect_pin = AT91_PIN_PE18, .wp_pin = AT91_PIN_PE19, }, }; /* * MACB Ethernet device */ static struct macb_platform_data __initdata ek_macb_data = { .phy_irq_pin = AT91_PIN_PE31, .is_rmii = 1, }; /* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { { .name = "Partition 1", .offset = 0, .size = SZ_64M, }, { .name = "Partition 2", .offset = MTDPART_OFS_NXTBLK, .size = MTDPART_SIZ_FULL, }, }; static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, .det_pin = -EINVAL, .rdy_pin = AT91_PIN_PA22, .enable_pin = AT91_PIN_PD15, .ecc_mode = NAND_ECC_SOFT, .on_flash_bbt = 1, .parts = ek_nand_partition, .num_parts = ARRAY_SIZE(ek_nand_partition), }; static struct sam9_smc_config __initdata ek_nand_smc_config = { .ncs_read_setup = 0, .nrd_setup = 1, .ncs_write_setup = 0, .nwe_setup = 1, .ncs_read_pulse = 3, .nrd_pulse = 3, .ncs_write_pulse = 3, .nwe_pulse = 3, .read_cycle = 5, .write_cycle = 5, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, .tdf_cycles = 2, }; static void __init ek_add_device_nand(void) { ek_nand_data.bus_width_16 = board_have_nand_16bit(); /* setup bus-width (8 or 16) */ if (ek_nand_data.bus_width_16) ek_nand_smc_config.mode |= AT91_SMC_DBW_16; else ek_nand_smc_config.mode |= AT91_SMC_DBW_8; /* configure chip-select 3 (NAND) */ sam9_smc_configure(0, 3, &ek_nand_smc_config); at91_add_device_nand(&ek_nand_data); } /* * I2C devices */ static struct at24_platform_data at24c512 = { .byte_len = SZ_512K / 8, .page_size = 128, .flags = AT24_FLAG_ADDR16, }; static struct i2c_board_info __initdata ek_i2c_devices[] = { { I2C_BOARD_INFO("24c512", 0x50), .platform_data = &at24c512, }, /* more devices can be added using expansion connectors */ }; /* * 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 = "TX09D70VM1CCA", .modedb = at91_tft_vga_modes, .modedb_len = ARRAY_SIZE(at91_tft_vga_modes), .hfmin = 15000, .hfmax = 64000, .vfmin = 50, .vfmax = 150, }; #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \ | ATMEL_LCDC_DISTYPE_TFT \ | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE) static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on) { at91_set_gpio_value(AT91_PIN_PA30, on); } /* Driver datas */ static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = { .lcdcon_is_backlight = true, .default_bpp = 16, .default_dmacon = ATMEL_LCDC_DMAEN, .default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2, .default_monspecs = &at91fb_default_monspecs, .atmel_lcdfb_power_control = at91_lcdc_power_control, .guard_time = 1, }; #else static struct atmel_lcdfb_pdata __initdata ek_lcdc_data; #endif /* * GPIO Buttons */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) static struct gpio_keys_button ek_buttons[] = { { /* BP1, "leftclic" */ .code = BTN_LEFT, .gpio = AT91_PIN_PC5, .active_low = 1, .desc = "left_click", .wakeup = 1, }, { /* BP2, "rightclic" */ .code = BTN_RIGHT, .gpio = AT91_PIN_PC4, .active_low = 1, .desc = "right_click", .wakeup = 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_periph(AT91_PIN_PC5, 1); /* left button */ at91_set_deglitch(AT91_PIN_PC5, 1); at91_set_GPIO_periph(AT91_PIN_PC4, 1); /* right button */ at91_set_deglitch(AT91_PIN_PC4, 1); platform_device_register(&ek_button_device); } #else static void __init ek_add_device_buttons(void) {} #endif /* * AC97 * reset_pin is not connected: NRST */ static struct ac97c_platform_data ek_ac97_data = { .reset_pin = -EINVAL, }; /* * LEDs ... these could all be PWM-driven, for variable brightness */ static struct gpio_led ek_leds[] = { { /* "right" led, green, userled2 (could be driven by pwm2) */ .name = "ds2", .gpio = AT91_PIN_PC29, .active_low = 1, .default_trigger = "nand-disk", }, { /* "power" led, yellow (could be driven by pwm0) */ .name = "ds3", .gpio = AT91_PIN_PB7, .default_trigger = "heartbeat", }, #if !IS_ENABLED(CONFIG_LEDS_PWM) { .name = "ds1", .gpio = AT91_PIN_PB8, .active_low = 1, .default_trigger = "none", } #endif }; /* * PWM Leds */ static struct pwm_lookup pwm_lookup[] = { PWM_LOOKUP("at91sam9rl-pwm", 1, "leds_pwm", "ds1", 5000, PWM_POLARITY_INVERSED), }; #if IS_ENABLED(CONFIG_LEDS_PWM) static struct led_pwm pwm_leds[] = { { .name = "ds1", .max_brightness = 255, }, }; static struct led_pwm_platform_data pwm_data = { .num_leds = ARRAY_SIZE(pwm_leds), .leds = pwm_leds, }; static struct platform_device leds_pwm = { .name = "leds_pwm", .id = -1, .dev = { .platform_data = &pwm_data, }, }; #endif /* * CAN */ static void sam9263ek_transceiver_switch(int on) { if (on) { at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */ at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */ } else { at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */ at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */ } } static struct at91_can_data ek_can_data = { .transceiver_switch = sam9263ek_transceiver_switch, }; static struct platform_device *devices[] __initdata = { #if IS_ENABLED(CONFIG_LEDS_PWM) &leds_pwm, #endif }; static void __init ek_board_init(void) { at91_register_devices(); /* Serial */ /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */ at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS); at91_add_device_serial(); /* USB Host */ at91_add_device_usbh(&ek_usbh_data); /* USB Device */ at91_add_device_udc(&ek_udc_data); /* SPI */ at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */ at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); /* Touchscreen */ ek_add_device_ts(); /* MMC */ at91_add_device_mci(1, &mci1_data); /* Ethernet */ at91_add_device_eth(&ek_macb_data); /* NAND */ ek_add_device_nand(); /* I2C */ at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); /* LCD Controller */ at91_add_device_lcdc(&ek_lcdc_data); /* Push Buttons */ ek_add_device_buttons(); /* AC97 */ at91_add_device_ac97(&ek_ac97_data); /* LEDs */ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup)); #if IS_ENABLED(CONFIG_LEDS_PWM) at91_add_device_pwm(1 << AT91_PWM1); #endif /* CAN */ at91_add_device_can(&ek_can_data); /* Other platform devices */ platform_add_devices(devices, ARRAY_SIZE(devices)); } MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK") /* Maintainer: Atmel */ .init_time = at91_init_time, .map_io = at91_map_io, .handle_irq = at91_aic_handle_irq, .init_early = ek_init_early, .init_irq = at91_init_irq_default, .init_machine = ek_board_init, MACHINE_END