/* * Copyright (C) 2005 SAN People * Copyright (C) 2008 Atmel * Copyright (C) 2009 Rob Emanuele * * 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 #include "sam9_smc.h" #include "generic.h" static void __init ek_map_io(void) { /* Initialize processor: 18.432 MHz crystal */ at91sam9260_initialize(18432000); /* DGBU 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); /* set serial console to ttyS0 (ie, DBGU) */ at91_set_serial_console(0); } static void __init ek_init_irq(void) { at91sam9260_init_interrupts(NULL); } /* * 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_PC5, .pullup_pin = 0, /* pull-up driven by UDC */ }; /* * SPI devices. */ static struct spi_board_info ek_spi_devices[] = { #if !(defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_AT91)) { /* 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 }; /* * MACB Ethernet device */ static struct at91_eth_data __initdata ek_macb_data = { .phy_irq_pin = AT91_PIN_PB0, .is_rmii = 1, }; /* * NAND flash */ static struct mtd_partition __initdata ek_nand_partition[] = { { .name = "Bootstrap", .offset = 0, .size = 4 * SZ_1M, }, { .name = "Partition 1", .offset = MTDPART_OFS_NXTBLK, .size = 60 * SZ_1M, }, { .name = "Partition 2", .offset = MTDPART_OFS_NXTBLK, .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; } /* det_pin is not connected */ static struct atmel_nand_data __initdata ek_nand_data = { .ale = 21, .cle = 22, .rdy_pin = AT91_PIN_PC13, .enable_pin = AT91_PIN_PC14, .partition_info = nand_partitions, #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16) .bus_width_16 = 1, #else .bus_width_16 = 0, #endif }; static struct sam9_smc_config __initdata ek_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, .tdf_cycles = 3, }; static void __init ek_add_device_nand(void) { /* 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(3, &ek_nand_smc_config); at91_add_device_nand(&ek_nand_data); } /* * MCI (SD/MMC) * wp_pin is not connected */ #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE) static struct mci_platform_data __initdata ek_mmc_data = { .slot[0] = { .bus_width = 4, .detect_pin = AT91_PIN_PC2, .wp_pin = -ENODEV, }, .slot[1] = { .bus_width = 4, .detect_pin = AT91_PIN_PC9, .wp_pin = -ENODEV, }, }; #else static struct at91_mmc_data __initdata ek_mmc_data = { .slot_b = 1, /* Only one slot so use slot B */ .wire4 = 1, .det_pin = AT91_PIN_PC9, }; #endif /* * LEDs */ static struct gpio_led ek_leds[] = { { /* "bottom" led, green, userled1 to be defined */ .name = "ds5", .gpio = AT91_PIN_PB8, .active_low = 1, .default_trigger = "none", }, { /* "power" led, yellow */ .name = "ds1", .gpio = AT91_PIN_PB9, .default_trigger = "heartbeat", } }; #if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE) static struct regulator_consumer_supply ek_audio_consumer_supplies[] = { REGULATOR_SUPPLY("AVDD", "0-001b"), REGULATOR_SUPPLY("HPVDD", "0-001b"), REGULATOR_SUPPLY("DBVDD", "0-001b"), REGULATOR_SUPPLY("DCVDD", "0-001b"), }; static struct regulator_init_data ek_avdd_reg_init_data = { .constraints = { .name = "3V3", .valid_ops_mask = REGULATOR_CHANGE_STATUS, }, .consumer_supplies = ek_audio_consumer_supplies, .num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies), }; static struct fixed_voltage_config ek_vdd_pdata = { .supply_name = "board-3V3", .microvolts = 3300000, .gpio = -EINVAL, .enabled_at_boot = 0, .init_data = &ek_avdd_reg_init_data, }; static struct platform_device ek_voltage_regulator = { .name = "reg-fixed-voltage", .id = -1, .num_resources = 0, .dev = { .platform_data = &ek_vdd_pdata, }, }; static void __init ek_add_regulators(void) { platform_device_register(&ek_voltage_regulator); } #else static void __init ek_add_regulators(void) {} #endif static struct i2c_board_info __initdata ek_i2c_devices[] = { { I2C_BOARD_INFO("24c512", 0x50), }, }; 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); /* 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); /* Regulators */ ek_add_regulators(); /* MMC */ #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE) at91_add_device_mci(0, &ek_mmc_data); #else at91_add_device_mmc(0, &ek_mmc_data); #endif /* I2C */ at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); /* LEDs */ at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); /* PCK0 provides MCLK to the WM8731 */ at91_set_B_periph(AT91_PIN_PC1, 0); /* SSC (for WM8731) */ at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); } MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod") /* Maintainer: Rob Emanuele */ .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