067bbada4c
Patch from Andrew Victor This patch updates the support for the Atmel DK and EK boards. The changes include: 1. Use the new at91_uart_config structure and device registration functions for the UARTs. 2. Registration of I2C and SPI platform devices. 3. The USB Device pullup line is connected to reset, so multidrive needs to be enabled on the line. [Patch from David Brownell]. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
171 lines
4.3 KiB
C
171 lines
4.3 KiB
C
/*
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* linux/arch/arm/mach-at91rm9200/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/config.h>
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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 <asm/hardware.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 <asm/arch/hardware.h>
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#include <asm/arch/board.h>
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#include <asm/arch/gpio.h>
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#include "generic.h"
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static void __init dk_init_irq(void)
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{
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/* Initialize AIC controller */
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at91rm9200_init_irq(NULL);
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/* Set up the GPIO interrupts */
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at91_gpio_irq_setup(BGA_GPIO_BANKS);
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}
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/*
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* Serial port configuration.
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* 0 .. 3 = USART0 .. USART3
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* 4 = DBGU
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*/
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static struct at91_uart_config __initdata dk_uart_config = {
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.console_tty = 0, /* ttyS0 */
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.nr_tty = 2,
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.tty_map = { 4, 1, -1, -1, -1 } /* ttyS0, ..., ttyS4 */
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};
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static void __init dk_map_io(void)
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{
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at91rm9200_map_io();
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/* Initialize clocks: 18.432 MHz crystal */
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at91_clock_init(18432000);
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/* Setup the LEDs */
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at91_init_leds(AT91_PIN_PB2, AT91_PIN_PB2);
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/* Setup the serial ports and console */
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at91_init_serial(&dk_uart_config);
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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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.is_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 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();
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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(&dk_mmc_data);
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#endif
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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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