71b149b3f7
There is no need to pinmux the UART so early in the kernel. Move it to the board init. This will also allow to finally move the gpio driver to platform device/driver. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
268 lines
6.3 KiB
C
268 lines
6.3 KiB
C
/*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2008 Atmel
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* Copyright (C) 2010 Lee McLoughlin - lee@lmmrtech.com
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* Copyright (C) 2010 Sergio Tanzilli - tanzilli@acmesystems.it
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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/spi/at73c213.h>
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#include <linux/gpio.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/clk.h>
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#include <linux/w1-gpio.h>
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#include <mach/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 <mach/board.h>
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#include <mach/at91sam9_smc.h>
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#include "sam9_smc.h"
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#include "generic.h"
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/*
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* The FOX Board G20 hardware comes as the "Netus G20" board with
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* just the cpu, ram, dataflash and two header connectors.
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* This is plugged into the FOX Board which provides the ethernet,
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* usb, rtc, leds, switch, ...
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*
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* For more info visit: http://www.acmesystems.it/foxg20
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*/
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static void __init foxg20_init_early(void)
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{
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/* Initialize processor: 18.432 MHz crystal */
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at91_initialize(18432000);
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}
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/*
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* USB Host port
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*/
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static struct at91_usbh_data __initdata foxg20_usbh_data = {
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.ports = 2,
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.vbus_pin = {-EINVAL, -EINVAL},
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.overcurrent_pin= {-EINVAL, -EINVAL},
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};
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/*
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* USB Device port
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*/
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static struct at91_udc_data __initdata foxg20_udc_data = {
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.vbus_pin = AT91_PIN_PC6,
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.pullup_pin = -EINVAL, /* pull-up driven by UDC */
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};
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/*
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* SPI devices.
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*/
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static struct spi_board_info foxg20_spi_devices[] = {
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#if !defined(CONFIG_MMC_AT91)
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{
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.modalias = "mtd_dataflash",
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.chip_select = 1,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#endif
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};
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/*
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* MACB Ethernet device
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*/
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static struct macb_platform_data __initdata foxg20_macb_data = {
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.phy_irq_pin = AT91_PIN_PA7,
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.is_rmii = 1,
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};
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/*
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* MCI (SD/MMC)
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* det_pin, wp_pin and vcc_pin are not connected
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*/
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static struct at91_mmc_data __initdata foxg20_mmc_data = {
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.slot_b = 1,
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.wire4 = 1,
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.det_pin = -EINVAL,
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.wp_pin = -EINVAL,
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.vcc_pin = -EINVAL,
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};
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/*
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* LEDs
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*/
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static struct gpio_led foxg20_leds[] = {
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{ /* user led, red */
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.name = "user_led",
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.gpio = AT91_PIN_PC7,
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.active_low = 0,
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.default_trigger = "heartbeat",
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},
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};
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/*
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* GPIO Buttons
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*/
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button foxg20_buttons[] = {
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{
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.gpio = AT91_PIN_PC4,
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.code = BTN_1,
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.desc = "Button 1",
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.active_low = 1,
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data foxg20_button_data = {
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.buttons = foxg20_buttons,
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.nbuttons = ARRAY_SIZE(foxg20_buttons),
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};
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static struct platform_device foxg20_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &foxg20_button_data,
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}
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};
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static void __init foxg20_add_device_buttons(void)
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{
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at91_set_gpio_input(AT91_PIN_PC4, 1); /* btn1 */
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at91_set_deglitch(AT91_PIN_PC4, 1);
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platform_device_register(&foxg20_button_device);
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}
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#else
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static void __init foxg20_add_device_buttons(void) {}
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#endif
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#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
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static struct w1_gpio_platform_data w1_gpio_pdata = {
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/* If you choose to use a pin other than PB16 it needs to be 3.3V */
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.pin = AT91_PIN_PB16,
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.is_open_drain = 1,
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};
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static struct platform_device w1_device = {
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.name = "w1-gpio",
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.id = -1,
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.dev.platform_data = &w1_gpio_pdata,
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};
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static void __init at91_add_device_w1(void)
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{
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at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
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at91_set_multi_drive(w1_gpio_pdata.pin, 1);
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platform_device_register(&w1_device);
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}
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#endif
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static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
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{
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I2C_BOARD_INFO("24c512", 0x50),
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},
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};
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static void __init foxg20_board_init(void)
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{
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/* Serial */
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/* DBGU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
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at91_register_uart(AT91SAM9260_ID_US0, 1,
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ATMEL_UART_CTS
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| ATMEL_UART_RTS
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| ATMEL_UART_DTR
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| ATMEL_UART_DSR
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| ATMEL_UART_DCD
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| ATMEL_UART_RI);
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/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9260_ID_US1, 2,
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ATMEL_UART_CTS
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| ATMEL_UART_RTS);
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/* USART2 on ttyS3. (Rx & Tx only) */
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at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
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/* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
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at91_register_uart(AT91SAM9260_ID_US3, 4,
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ATMEL_UART_CTS
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| ATMEL_UART_RTS);
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/* USART4 on ttyS5. (Rx & Tx only) */
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at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
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/* USART5 on ttyS6. (Rx & Tx only) */
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at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
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/* Set the internal pull-up resistor on DRXD */
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at91_set_A_periph(AT91_PIN_PB14, 1);
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at91_add_device_serial();
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/* USB Host */
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at91_add_device_usbh(&foxg20_usbh_data);
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/* USB Device */
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at91_add_device_udc(&foxg20_udc_data);
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/* SPI */
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at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
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/* Ethernet */
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at91_add_device_eth(&foxg20_macb_data);
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/* MMC */
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at91_add_device_mmc(0, &foxg20_mmc_data);
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/* I2C */
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at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
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/* LEDs */
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at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
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/* Push Buttons */
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foxg20_add_device_buttons();
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#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
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at91_add_device_w1();
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#endif
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}
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MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
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/* Maintainer: Sergio Tanzilli */
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.timer = &at91sam926x_timer,
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.map_io = at91_map_io,
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.init_early = foxg20_init_early,
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.init_irq = at91_init_irq_default,
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.init_machine = foxg20_board_init,
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MACHINE_END
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