/* * linux/arch/arm/mach-at91/board-sam9260ek.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/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/at73c213.h> #include <linux/clk.h> #include <linux/platform_data/at24.h> #include <linux/gpio_keys.h> #include <linux/input.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: 18.432 MHz crystal */ at91_initialize(18432000); } /* * USB Host port */ static struct at91_usbh_data __initdata ek_usbh_data = { .ports = 2, .vbus_pin = {-EINVAL, -EINVAL}, .overcurrent_pin= {-EINVAL, -EINVAL}, }; /* * USB Device port */ static struct at91_udc_data __initdata ek_udc_data = { .vbus_pin = AT91_PIN_PC5, .pullup_pin = -EINVAL, /* pull-up driven by UDC */ }; /* * Audio */ static struct at73c213_board_info at73c213_data = { .ssc_id = 0, .shortname = "AT91SAM9260-EK external DAC", }; #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) static void __init at73c213_set_clk(struct at73c213_board_info *info) { struct clk *pck0; struct clk *plla; pck0 = clk_get(NULL, "pck0"); plla = clk_get(NULL, "plla"); /* AT73C213 MCK Clock */ at91_set_B_periph(AT91_PIN_PC1, 0); /* PCK0 */ clk_set_parent(pck0, plla); clk_put(plla); info->dac_clk = pck0; } #else static void __init at73c213_set_clk(struct at73c213_board_info *info) {} #endif /* * SPI devices. */ static struct spi_board_info ek_spi_devices[] = { #if !IS_ENABLED(CONFIG_MMC_ATMELMCI) { /* DataFlash chip */ .modalias = "mtd_dataflash", .chip_select = 1, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, }, #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 #endif #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) { /* AT73C213 DAC */ .modalias = "at73c213", .chip_select = 0, .max_speed_hz = 10 * 1000 * 1000, .bus_num = 1, .mode = SPI_MODE_1, .platform_data = &at73c213_data, }, #endif }; /* * MACB Ethernet device */ static struct macb_platform_data __initdata ek_macb_data = { .phy_irq_pin = AT91_PIN_PA7, .is_rmii = 1, }; /* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { { .name = "Partition 1", .offset = 0, .size = SZ_256K, }, { .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_PC13, .enable_pin = AT91_PIN_PC14, .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); } /* * MCI (SD/MMC) */ static struct mci_platform_data __initdata ek_mci0_data = { .slot[1] = { .bus_width = 4, .detect_pin = -EINVAL, .wp_pin = -EINVAL, }, }; /* * LEDs */ static struct gpio_led ek_leds[] = { { /* "bottom" led, green, userled1 to be defined */ .name = "ds5", .gpio = AT91_PIN_PA6, .active_low = 1, .default_trigger = "none", }, { /* "power" led, yellow */ .name = "ds1", .gpio = AT91_PIN_PA9, .default_trigger = "heartbeat", } }; /* * 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 */ }; /* * GPIO Buttons */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) static struct gpio_keys_button ek_buttons[] = { { .gpio = AT91_PIN_PA30, .code = BTN_3, .desc = "Button 3", .active_low = 1, .wakeup = 1, }, { .gpio = AT91_PIN_PA31, .code = BTN_4, .desc = "Button 4", .active_low = 1, .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_input(AT91_PIN_PA30, 1); /* btn3 */ at91_set_deglitch(AT91_PIN_PA30, 1); at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ at91_set_deglitch(AT91_PIN_PA31, 1); platform_device_register(&ek_button_device); } #else static void __init ek_add_device_buttons(void) {} #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, CTS, RTS, DTR, DSR, DCD, RI) */ at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD | ATMEL_UART_RI); /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */ at91_register_uart(AT91SAM9260_ID_US1, 2, 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_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); /* NAND */ ek_add_device_nand(); /* Ethernet */ at91_add_device_eth(&ek_macb_data); /* MMC */ at91_add_device_mci(0, &ek_mci0_data); /* I2C */ at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); /* SSC (to AT73C213) */ at73c213_set_clk(&at73c213_data); at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); /* LEDs */ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); /* Push Buttons */ ek_add_device_buttons(); } MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-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