| /* |
| * Copyright (C) 2005 SAN People |
| * Copyright (C) 2008 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/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 <mach/hardware.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/board.h> |
| #include <mach/gpio.h> |
| #include <mach/at91sam9_smc.h> |
| |
| #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_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_PA7, |
| .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) |
| * det_pin, wp_pin and vcc_pin are not connected |
| */ |
| static struct at91_mmc_data __initdata ek_mmc_data = { |
| .slot_b = 1, |
| .wire4 = 1, |
| }; |
| |
| |
| /* |
| * 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", |
| } |
| }; |
| |
| 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); |
| /* MMC */ |
| at91_add_device_mmc(0, &ek_mmc_data); |
| /* I2C */ |
| at91_add_device_i2c(NULL, 0); |
| /* LEDs */ |
| at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); |
| } |
| |
| MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK") |
| /* Maintainer: Atmel */ |
| .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 |