/* * linux/arch/arm/mach-at91/board-usb-a926x.c * * Copyright (C) 2005 SAN People * Copyright (C) 2007 Atmel Corporation. * Copyright (C) 2007 Calao-systems * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "sam9_smc.h" #include "generic.h" static void __init ek_init_early(void) { /* Initialize processor: 12.00 MHz crystal */ at91_initialize(12000000); /* DBGU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); /* set serial console to ttyS0 (ie, DBGU) */ at91_set_serial_console(0); } /* * 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_PB11, .pullup_pin = 0, /* pull-up driven by UDC */ }; static void __init ek_add_device_udc(void) { if (machine_is_usb_a9260() || machine_is_usb_a9g20()) ek_udc_data.vbus_pin = AT91_PIN_PC5; at91_add_device_udc(&ek_udc_data); } #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) #define MMC_SPI_CARD_DETECT_INT AT91_PIN_PC4 static int at91_mmc_spi_init(struct device *dev, irqreturn_t (*detect_int)(int, void *), void *data) { /* Configure Interrupt pin as input, no pull-up */ at91_set_gpio_input(MMC_SPI_CARD_DETECT_INT, 0); return request_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), detect_int, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "mmc-spi-detect", data); } static void at91_mmc_spi_exit(struct device *dev, void *data) { free_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), data); } static struct mmc_spi_platform_data at91_mmc_spi_pdata = { .init = at91_mmc_spi_init, .exit = at91_mmc_spi_exit, .detect_delay = 100, /* msecs */ }; #endif /* * SPI devices. */ static struct spi_board_info usb_a9263_spi_devices[] = { #if !defined(CONFIG_MMC_AT91) { /* DataFlash chip */ .modalias = "mtd_dataflash", .chip_select = 0, .max_speed_hz = 15 * 1000 * 1000, .bus_num = 0, } #endif }; static struct spi_board_info usb_a9g20_spi_devices[] = { #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE) { .modalias = "mmc_spi", .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */ .bus_num = 1, .chip_select = 0, .platform_data = &at91_mmc_spi_pdata, .mode = SPI_MODE_3, }, #endif }; static void __init ek_add_device_spi(void) { if (machine_is_usb_a9263()) at91_add_device_spi(usb_a9263_spi_devices, ARRAY_SIZE(usb_a9263_spi_devices)); else if (machine_is_usb_a9g20()) at91_add_device_spi(usb_a9g20_spi_devices, ARRAY_SIZE(usb_a9g20_spi_devices)); } /* * MACB Ethernet device */ static struct at91_eth_data __initdata ek_macb_data = { .phy_irq_pin = AT91_PIN_PE31, .is_rmii = 1, }; static void __init ek_add_device_eth(void) { if (machine_is_usb_a9260() || machine_is_usb_a9g20()) ek_macb_data.phy_irq_pin = AT91_PIN_PA31; at91_add_device_eth(&ek_macb_data); } /* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { { .name = "barebox", .offset = 0, .size = 3 * SZ_128K, }, { .name = "bareboxenv", .offset = MTDPART_OFS_NXTBLK, .size = SZ_128K, }, { .name = "bareboxenv2", .offset = MTDPART_OFS_NXTBLK, .size = SZ_128K, }, { .name = "kernel", .offset = MTDPART_OFS_NXTBLK, .size = 4 * SZ_1M, }, { .name = "rootfs", .offset = MTDPART_OFS_NXTBLK, .size = 120 * SZ_1M, }, { .name = "data", .offset = MTDPART_OFS_NXTBLK, .size = MTDPART_SIZ_FULL, } }; static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, // .det_pin = ... not connected .rdy_pin = AT91_PIN_PA22, .enable_pin = AT91_PIN_PD15, .parts = ek_nand_partition, .num_parts = ARRAY_SIZE(ek_nand_partition), }; static struct sam9_smc_config __initdata usb_a9260_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 | AT91_SMC_DBW_8, .tdf_cycles = 2, }; static struct sam9_smc_config __initdata usb_a9g20_nand_smc_config = { .ncs_read_setup = 0, .nrd_setup = 2, .ncs_write_setup = 0, .nwe_setup = 2, .ncs_read_pulse = 4, .nrd_pulse = 4, .ncs_write_pulse = 4, .nwe_pulse = 4, .read_cycle = 7, .write_cycle = 7, .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8, .tdf_cycles = 3, }; static void __init ek_add_device_nand(void) { if (machine_is_usb_a9260() || machine_is_usb_a9g20()) { ek_nand_data.rdy_pin = AT91_PIN_PC13; ek_nand_data.enable_pin = AT91_PIN_PC14; } /* configure chip-select 3 (NAND) */ if (machine_is_usb_a9g20()) sam9_smc_configure(0, 3, &usb_a9g20_nand_smc_config); else sam9_smc_configure(0, 3, &usb_a9260_nand_smc_config); at91_add_device_nand(&ek_nand_data); } /* * GPIO Buttons */ #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) static struct gpio_keys_button ek_buttons[] = { { /* USER PUSH BUTTON */ .code = KEY_ENTER, .gpio = AT91_PIN_PB10, .active_low = 1, .desc = "user_pb", .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_PB10, 1); /* user push button, pull up enabled */ at91_set_deglitch(AT91_PIN_PB10, 1); platform_device_register(&ek_button_device); } #else static void __init ek_add_device_buttons(void) {} #endif /* * LEDs */ static struct gpio_led ek_leds[] = { { /* user_led (green) */ .name = "user_led", .gpio = AT91_PIN_PB21, .active_low = 1, .default_trigger = "heartbeat", } }; static struct i2c_board_info __initdata ek_i2c_devices[] = { { I2C_BOARD_INFO("rv3029c2", 0x56), }, }; static void __init ek_add_device_leds(void) { if (machine_is_usb_a9260() || machine_is_usb_a9g20()) ek_leds[0].active_low = 0; at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); } static void __init ek_board_init(void) { /* Serial */ at91_add_device_serial(); /* USB Host */ at91_add_device_usbh(&ek_usbh_data); /* USB Device */ ek_add_device_udc(); /* SPI */ ek_add_device_spi(); /* Ethernet */ ek_add_device_eth(); /* NAND */ ek_add_device_nand(); /* Push Buttons */ ek_add_device_buttons(); /* LEDs */ ek_add_device_leds(); if (machine_is_usb_a9g20()) { /* I2C */ at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); } else { /* I2C */ at91_add_device_i2c(NULL, 0); /* shutdown controller, wakeup button (5 msec low) */ at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW | AT91_SHDW_RTTWKEN); } } MACHINE_START(USB_A9263, "CALAO USB_A9263") /* Maintainer: calao-systems */ .timer = &at91sam926x_timer, .map_io = at91_map_io, .init_early = ek_init_early, .init_irq = at91_init_irq_default, .init_machine = ek_board_init, MACHINE_END MACHINE_START(USB_A9260, "CALAO USB_A9260") /* Maintainer: calao-systems */ .timer = &at91sam926x_timer, .map_io = at91_map_io, .init_early = ek_init_early, .init_irq = at91_init_irq_default, .init_machine = ek_board_init, MACHINE_END MACHINE_START(USB_A9G20, "CALAO USB_A92G0") /* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */ .timer = &at91sam926x_timer, .map_io = at91_map_io, .init_early = ek_init_early, .init_irq = at91_init_irq_default, .init_machine = ek_board_init, MACHINE_END