206 строки
4.2 KiB
C
206 строки
4.2 KiB
C
/*
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* arch/arm/mach-imx/mx1ads.c
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*
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* Initially based on:
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* linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
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* Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
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*
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* 2004 (c) MontaVista Software, Inc.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/physmap.h>
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#include <linux/i2c.h>
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#include <linux/i2c/pcf857x.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/time.h>
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#include <mach/irqs.h>
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#include <mach/hardware.h>
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#include <mach/common.h>
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#include <mach/imx-uart.h>
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#include <mach/irqs.h>
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#include <mach/i2c.h>
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#include <mach/iomux.h>
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#include "devices.h"
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/*
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* UARTs platform data
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*/
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static int mxc_uart1_pins[] = {
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PC9_PF_UART1_CTS,
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PC10_PF_UART1_RTS,
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PC11_PF_UART1_TXD,
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PC12_PF_UART1_RXD,
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};
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static int uart1_mxc_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins), "UART1");
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}
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static int uart1_mxc_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart1_pins,
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ARRAY_SIZE(mxc_uart1_pins));
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return 0;
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}
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static int mxc_uart2_pins[] = {
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PB28_PF_UART2_CTS,
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PB29_PF_UART2_RTS,
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PB30_PF_UART2_TXD,
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PB31_PF_UART2_RXD,
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};
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static int uart2_mxc_init(struct platform_device *pdev)
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{
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return mxc_gpio_setup_multiple_pins(mxc_uart2_pins,
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ARRAY_SIZE(mxc_uart2_pins), "UART2");
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}
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static int uart2_mxc_exit(struct platform_device *pdev)
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{
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mxc_gpio_release_multiple_pins(mxc_uart2_pins,
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ARRAY_SIZE(mxc_uart2_pins));
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return 0;
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}
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static struct imxuart_platform_data uart_pdata[] = {
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{
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.init = uart1_mxc_init,
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.exit = uart1_mxc_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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}, {
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.init = uart2_mxc_init,
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.exit = uart2_mxc_exit,
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.flags = IMXUART_HAVE_RTSCTS,
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},
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};
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/*
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* Physmap flash
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*/
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static struct physmap_flash_data mx1ads_flash_data = {
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.width = 4, /* bankwidth in bytes */
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};
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static struct resource flash_resource = {
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.start = IMX_CS0_PHYS,
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.end = IMX_CS0_PHYS + SZ_32M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device flash_device = {
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.name = "physmap-flash",
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.id = 0,
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.resource = &flash_resource,
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.num_resources = 1,
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};
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/*
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* I2C
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*/
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static int i2c_pins[] = {
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PA15_PF_I2C_SDA,
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PA16_PF_I2C_SCL,
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};
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static int i2c_init(struct device *dev)
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{
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return mxc_gpio_setup_multiple_pins(i2c_pins,
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ARRAY_SIZE(i2c_pins), "I2C");
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}
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static void i2c_exit(struct device *dev)
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{
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mxc_gpio_release_multiple_pins(i2c_pins,
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ARRAY_SIZE(i2c_pins));
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}
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static struct pcf857x_platform_data pcf857x_data[] = {
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{
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.gpio_base = 4 * 32,
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}, {
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.gpio_base = 4 * 32 + 16,
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}
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};
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static struct imxi2c_platform_data mx1ads_i2c_data = {
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.bitrate = 100000,
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.init = i2c_init,
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.exit = i2c_exit,
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};
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static struct i2c_board_info mx1ads_i2c_devices[] = {
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{
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I2C_BOARD_INFO("pcf857x", 0x22),
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.type = "pcf8575",
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.platform_data = &pcf857x_data[0],
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}, {
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I2C_BOARD_INFO("pcf857x", 0x24),
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.type = "pcf8575",
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.platform_data = &pcf857x_data[1],
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},
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};
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/*
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* Board init
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*/
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static void __init mx1ads_init(void)
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{
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/* UART */
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mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
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mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
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/* Physmap flash */
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mxc_register_device(&flash_device, &mx1ads_flash_data);
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/* I2C */
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i2c_register_board_info(0, mx1ads_i2c_devices,
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ARRAY_SIZE(mx1ads_i2c_devices));
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mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
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}
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static void __init mx1ads_timer_init(void)
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{
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mx1_clocks_init(32000);
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}
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struct sys_timer mx1ads_timer = {
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.init = mx1ads_timer_init,
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};
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MACHINE_START(MX1ADS, "Freescale MX1ADS")
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/* Maintainer: Sascha Hauer, Pengutronix */
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.phys_io = IMX_IO_PHYS,
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.io_pg_offst = (IMX_IO_BASE >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mxc_map_io,
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.init_irq = mxc_init_irq,
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.timer = &mx1ads_timer,
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.init_machine = mx1ads_init,
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MACHINE_END
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MACHINE_START(MXLADS, "Freescale MXLADS")
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.phys_io = IMX_IO_PHYS,
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.io_pg_offst = (IMX_IO_BASE >> 18) & 0xfffc,
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.boot_params = PHYS_OFFSET + 0x100,
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.map_io = mxc_map_io,
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.init_irq = mxc_init_irq,
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.timer = &mx1ads_timer,
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.init_machine = mx1ads_init,
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MACHINE_END
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