236 строки
5.7 KiB
C
236 строки
5.7 KiB
C
/*
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* linux/arch/arm/mach-at91/board-dk.c
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*
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* Copyright (C) 2005 SAN People
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*
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* Epson S1D framebuffer glue code is:
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* Copyright (C) 2005 Thibaut VARENE <varenet@parisc-linux.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/mtd/physmap.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <mach/hardware.h>
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#include <mach/board.h>
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#include <mach/gpio.h>
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#include <mach/at91rm9200_mc.h>
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#include "generic.h"
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static void __init dk_map_io(void)
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{
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/* Initialize processor: 18.432 MHz crystal */
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at91rm9200_initialize(18432000, AT91RM9200_BGA);
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/* Setup the LEDs */
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at91_init_leds(AT91_PIN_PB2, AT91_PIN_PB2);
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/* DBGU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* USART1 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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at91_register_uart(AT91RM9200_ID_US1, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
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| ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
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| ATMEL_UART_RI);
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/* set serial console to ttyS0 (ie, DBGU) */
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at91_set_serial_console(0);
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}
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static void __init dk_init_irq(void)
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{
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at91rm9200_init_interrupts(NULL);
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}
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static struct at91_eth_data __initdata dk_eth_data = {
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.phy_irq_pin = AT91_PIN_PC4,
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.is_rmii = 1,
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};
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static struct at91_usbh_data __initdata dk_usbh_data = {
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.ports = 2,
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};
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static struct at91_udc_data __initdata dk_udc_data = {
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.vbus_pin = AT91_PIN_PD4,
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.pullup_pin = AT91_PIN_PD5,
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};
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static struct at91_cf_data __initdata dk_cf_data = {
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.det_pin = AT91_PIN_PB0,
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.rst_pin = AT91_PIN_PC5,
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// .irq_pin = ... not connected
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// .vcc_pin = ... always powered
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};
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static struct at91_mmc_data __initdata dk_mmc_data = {
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.slot_b = 0,
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.wire4 = 1,
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};
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static struct spi_board_info dk_spi_devices[] = {
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{ /* DataFlash chip */
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.modalias = "mtd_dataflash",
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.chip_select = 0,
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.max_speed_hz = 15 * 1000 * 1000,
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},
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{ /* UR6HCPS2-SP40 PS2-to-SPI adapter */
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.modalias = "ur6hcps2",
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.chip_select = 1,
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.max_speed_hz = 250 * 1000,
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},
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{ /* TLV1504 ADC, 4 channels, 10 bits; one is a temp sensor */
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.modalias = "tlv1504",
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.chip_select = 2,
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.max_speed_hz = 20 * 1000 * 1000,
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},
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#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
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{ /* DataFlash card */
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.modalias = "mtd_dataflash",
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.chip_select = 3,
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.max_speed_hz = 15 * 1000 * 1000,
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}
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#endif
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};
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static struct i2c_board_info __initdata dk_i2c_devices[] = {
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{
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I2C_BOARD_INFO("ics1523", 0x26),
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},
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{
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I2C_BOARD_INFO("x9429", 0x28),
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},
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{
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I2C_BOARD_INFO("24c1024", 0x50),
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}
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};
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static struct mtd_partition __initdata dk_nand_partition[] = {
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{
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.name = "NAND Partition 1",
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.offset = 0,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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{
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*num_partitions = ARRAY_SIZE(dk_nand_partition);
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return dk_nand_partition;
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}
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static struct atmel_nand_data __initdata dk_nand_data = {
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.ale = 22,
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.cle = 21,
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.det_pin = AT91_PIN_PB1,
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.rdy_pin = AT91_PIN_PC2,
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// .enable_pin = ... not there
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.partition_info = nand_partitions,
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};
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#define DK_FLASH_BASE AT91_CHIPSELECT_0
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#define DK_FLASH_SIZE SZ_2M
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static struct physmap_flash_data dk_flash_data = {
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.width = 2,
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};
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static struct resource dk_flash_resource = {
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.start = DK_FLASH_BASE,
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.end = DK_FLASH_BASE + DK_FLASH_SIZE - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device dk_flash = {
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.name = "physmap-flash",
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.id = 0,
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.dev = {
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.platform_data = &dk_flash_data,
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},
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.resource = &dk_flash_resource,
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.num_resources = 1,
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};
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static struct gpio_led dk_leds[] = {
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{
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.name = "led0",
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.gpio = AT91_PIN_PB2,
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.active_low = 1,
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.default_trigger = "heartbeat",
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}
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};
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static void __init dk_board_init(void)
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{
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/* Serial */
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at91_add_device_serial();
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/* Ethernet */
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at91_add_device_eth(&dk_eth_data);
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/* USB Host */
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at91_add_device_usbh(&dk_usbh_data);
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/* USB Device */
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at91_add_device_udc(&dk_udc_data);
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at91_set_multi_drive(dk_udc_data.pullup_pin, 1); /* pullup_pin is connected to reset */
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/* Compact Flash */
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at91_add_device_cf(&dk_cf_data);
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/* I2C */
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at91_add_device_i2c(dk_i2c_devices, ARRAY_SIZE(dk_i2c_devices));
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/* SPI */
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at91_add_device_spi(dk_spi_devices, ARRAY_SIZE(dk_spi_devices));
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#ifdef CONFIG_MTD_AT91_DATAFLASH_CARD
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/* DataFlash card */
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at91_set_gpio_output(AT91_PIN_PB7, 0);
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#else
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/* MMC */
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at91_set_gpio_output(AT91_PIN_PB7, 1); /* this MMC card slot can optionally use SPI signaling (CS3). */
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at91_add_device_mmc(0, &dk_mmc_data);
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#endif
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/* NAND */
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at91_add_device_nand(&dk_nand_data);
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/* NOR Flash */
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platform_device_register(&dk_flash);
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/* LEDs */
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at91_gpio_leds(dk_leds, ARRAY_SIZE(dk_leds));
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/* VGA */
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// dk_add_device_video();
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}
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MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
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/* Maintainer: SAN People/Atmel */
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.phys_io = AT91_BASE_SYS,
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.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
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.boot_params = AT91_SDRAM_BASE + 0x100,
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.timer = &at91rm9200_timer,
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.map_io = dk_map_io,
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.init_irq = dk_init_irq,
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.init_machine = dk_board_init,
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MACHINE_END
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