/* * Copyright (C) 2010 Christian Glindkamp * taskit GmbH * * 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 "sam9_smc.h" #include "generic.h" void __init stamp9g20_init_early(void) { /* Initialize processor: 18.432 MHz crystal */ at91_initialize(18432000); /* DGBU on ttyS0. (Rx & Tx only) */ at91_register_uart(0, 0, 0); /* set serial console to ttyS0 (ie, DBGU) */ at91_set_serial_console(0); } static void __init stamp9g20evb_init_early(void) { stamp9g20_init_early(); /* 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); } static void __init portuxg20_init_early(void) { stamp9g20_init_early(); /* 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, CTS, RTS) */ at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS); /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */ at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS); /* USART4 on ttyS5. (Rx, Tx only) */ at91_register_uart(AT91SAM9260_ID_US4, 5, 0); /* USART5 on ttyS6. (Rx, Tx only) */ at91_register_uart(AT91SAM9260_ID_US5, 6, 0); } /* * NAND flash */ static struct atmel_nand_data __initdata nand_data = { .ale = 21, .cle = 22, .rdy_pin = AT91_PIN_PC13, .enable_pin = AT91_PIN_PC14, .bus_width_16 = 0, }; static struct sam9_smc_config __initdata 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 add_device_nand(void) { /* configure chip-select 3 (NAND) */ sam9_smc_configure(3, &nand_smc_config); at91_add_device_nand(&nand_data); } /* * MCI (SD/MMC) * det_pin, wp_pin and vcc_pin are not connected */ #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE) static struct mci_platform_data __initdata mmc_data = { .slot[0] = { .bus_width = 4, }, }; #else static struct at91_mmc_data __initdata mmc_data = { .slot_b = 0, .wire4 = 1, }; #endif /* * USB Host port */ static struct at91_usbh_data __initdata usbh_data = { .ports = 2, }; /* * USB Device port */ static struct at91_udc_data __initdata portuxg20_udc_data = { .vbus_pin = AT91_PIN_PC7, .pullup_pin = 0, /* pull-up driven by UDC */ }; static struct at91_udc_data __initdata stamp9g20evb_udc_data = { .vbus_pin = AT91_PIN_PA22, .pullup_pin = 0, /* pull-up driven by UDC */ }; /* * MACB Ethernet device */ static struct macb_platform_data __initdata macb_data = { .phy_irq_pin = AT91_PIN_PA28, .is_rmii = 1, }; /* * LEDs */ static struct gpio_led portuxg20_leds[] = { { .name = "LED2", .gpio = AT91_PIN_PC5, .default_trigger = "none", }, { .name = "LED3", .gpio = AT91_PIN_PC4, .default_trigger = "none", }, { .name = "LED4", .gpio = AT91_PIN_PC10, .default_trigger = "heartbeat", } }; static struct gpio_led stamp9g20evb_leds[] = { { .name = "D8", .gpio = AT91_PIN_PB18, .active_low = 1, .default_trigger = "none", }, { .name = "D9", .gpio = AT91_PIN_PB19, .active_low = 1, .default_trigger = "none", }, { .name = "D10", .gpio = AT91_PIN_PB20, .active_low = 1, .default_trigger = "heartbeat", } }; /* * SPI devices */ static struct spi_board_info portuxg20_spi_devices[] = { { .modalias = "spidev", .chip_select = 0, .max_speed_hz = 1 * 1000 * 1000, .bus_num = 0, }, { .modalias = "spidev", .chip_select = 0, .max_speed_hz = 1 * 1000 * 1000, .bus_num = 1, }, }; /* * Dallas 1-Wire */ static struct w1_gpio_platform_data w1_gpio_pdata = { .pin = AT91_PIN_PA29, .is_open_drain = 1, }; static struct platform_device w1_device = { .name = "w1-gpio", .id = -1, .dev.platform_data = &w1_gpio_pdata, }; void add_w1(void) { at91_set_GPIO_periph(w1_gpio_pdata.pin, 1); at91_set_multi_drive(w1_gpio_pdata.pin, 1); platform_device_register(&w1_device); } void __init stamp9g20_board_init(void) { /* Serial */ at91_add_device_serial(); /* NAND */ add_device_nand(); /* MMC */ #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE) at91_add_device_mci(0, &mmc_data); #else at91_add_device_mmc(0, &mmc_data); #endif /* W1 */ add_w1(); } static void __init portuxg20_board_init(void) { stamp9g20_board_init(); /* USB Host */ at91_add_device_usbh(&usbh_data); /* USB Device */ at91_add_device_udc(&portuxg20_udc_data); /* Ethernet */ at91_add_device_eth(&macb_data); /* I2C */ at91_add_device_i2c(NULL, 0); /* SPI */ at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices)); /* LEDs */ at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds)); } static void __init stamp9g20evb_board_init(void) { stamp9g20_board_init(); /* USB Host */ at91_add_device_usbh(&usbh_data); /* USB Device */ at91_add_device_udc(&stamp9g20evb_udc_data); /* Ethernet */ at91_add_device_eth(&macb_data); /* I2C */ at91_add_device_i2c(NULL, 0); /* LEDs */ at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds)); } MACHINE_START(PORTUXG20, "taskit PortuxG20") /* Maintainer: taskit GmbH */ .timer = &at91sam926x_timer, .map_io = at91_map_io, .init_early = portuxg20_init_early, .init_irq = at91_init_irq_default, .init_machine = portuxg20_board_init, MACHINE_END MACHINE_START(STAMP9G20, "taskit Stamp9G20") /* Maintainer: taskit GmbH */ .timer = &at91sam926x_timer, .map_io = at91_map_io, .init_early = stamp9g20evb_init_early, .init_irq = at91_init_irq_default, .init_machine = stamp9g20evb_board_init, MACHINE_END