LXR linux/arch/arm/mach-mx1/mx1ads.c

   1/*
   2 * arch/arm/mach-imx/mx1ads.c
   3 *
   4 * Initially based on:
   5 *      linux-2.6.7-imx/arch/arm/mach-imx/scb9328.c
   6 *      Copyright (c) 2004 Sascha Hauer <sascha@saschahauer.de>
   7 *
   8 * 2004 (c) MontaVista Software, Inc.
   9 *
  10 * This file is licensed under the terms of the GNU General Public
  11 * License version 2. This program is licensed "as is" without any
  12 * warranty of any kind, whether express or implied.
  13 */
  14
  15#include <linux/i2c.h>
  16#include <linux/i2c/pcf857x.h>
  17#include <linux/init.h>
  18#include <linux/kernel.h>
  19#include <linux/platform_device.h>
  20#include <linux/mtd/physmap.h>
  21
  22#include <asm/mach-types.h>
  23#include <asm/mach/arch.h>
  24#include <asm/mach/time.h>
  25
  26#include <mach/common.h>
  27#include <mach/hardware.h>
  28#include <mach/i2c.h>
  29#include <mach/imx-uart.h>
  30#include <mach/iomux.h>
  31#include <mach/irqs.h>
  32
  33#include "devices.h"
  34
  35static int mx1ads_pins[] = {
  36        /* UART1 */
  37        PC9_PF_UART1_CTS,
  38        PC10_PF_UART1_RTS,
  39        PC11_PF_UART1_TXD,
  40        PC12_PF_UART1_RXD,
  41        /* UART2 */
  42        PB28_PF_UART2_CTS,
  43        PB29_PF_UART2_RTS,
  44        PB30_PF_UART2_TXD,
  45        PB31_PF_UART2_RXD,
  46        /* I2C */
  47        PA15_PF_I2C_SDA,
  48        PA16_PF_I2C_SCL,
  49        /* SPI */
  50        PC13_PF_SPI1_SPI_RDY,
  51        PC14_PF_SPI1_SCLK,
  52        PC15_PF_SPI1_SS,
  53        PC16_PF_SPI1_MISO,
  54        PC17_PF_SPI1_MOSI,
  55};
  56
  57/*
  58 * UARTs platform data
  59 */
  60
  61static struct imxuart_platform_data uart_pdata[] = {
  62        {
  63                .flags = IMXUART_HAVE_RTSCTS,
  64        }, {
  65                .flags = IMXUART_HAVE_RTSCTS,
  66        },
  67};
  68
  69/*
  70 * Physmap flash
  71 */
  72
  73static struct physmap_flash_data mx1ads_flash_data = {
  74        .width          = 4,            /* bankwidth in bytes */
  75};
  76
  77static struct resource flash_resource = {
  78        .start  = IMX_CS0_PHYS,
  79        .end    = IMX_CS0_PHYS + SZ_32M - 1,
  80        .flags  = IORESOURCE_MEM,
  81};
  82
  83static struct platform_device flash_device = {
  84        .name   = "physmap-flash",
  85        .id     = 0,
  86        .resource = &flash_resource,
  87        .num_resources = 1,
  88};
  89
  90/*
  91 * I2C
  92 */
  93static struct pcf857x_platform_data pcf857x_data[] = {
  94        {
  95                .gpio_base = 4 * 32,
  96        }, {
  97                .gpio_base = 4 * 32 + 16,
  98        }
  99};
 100
 101static struct imxi2c_platform_data mx1ads_i2c_data = {
 102        .bitrate = 100000,
 103};
 104
 105static struct i2c_board_info mx1ads_i2c_devices[] = {
 106        {
 107                I2C_BOARD_INFO("pcf8575", 0x22),
 108                .platform_data = &pcf857x_data[0],
 109        }, {
 110                I2C_BOARD_INFO("pcf8575", 0x24),
 111                .platform_data = &pcf857x_data[1],
 112        },
 113};
 114
 115/*
 116 * Board init
 117 */
 118static void __init mx1ads_init(void)
 119{
 120        mxc_gpio_setup_multiple_pins(mx1ads_pins,
 121                ARRAY_SIZE(mx1ads_pins), "mx1ads");
 122
 123        /* UART */
 124        mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
 125        mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
 126
 127        /* Physmap flash */
 128        mxc_register_device(&flash_device, &mx1ads_flash_data);
 129
 130        /* I2C */
 131        i2c_register_board_info(0, mx1ads_i2c_devices,
 132                                ARRAY_SIZE(mx1ads_i2c_devices));
 133
 134        mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
 135}
 136
 137static void __init mx1ads_timer_init(void)
 138{
 139        mx1_clocks_init(32000);
 140}
 141
 142struct sys_timer mx1ads_timer = {
 143        .init   = mx1ads_timer_init,
 144};
 145
 146MACHINE_START(MX1ADS, "Freescale MX1ADS")
 147        /* Maintainer: Sascha Hauer, Pengutronix */
 148        .phys_io        = IMX_IO_PHYS,
 149        .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
 150        .boot_params    = PHYS_OFFSET + 0x100,
 151        .map_io         = mx1_map_io,
 152        .init_irq       = mx1_init_irq,
 153        .timer          = &mx1ads_timer,
 154        .init_machine   = mx1ads_init,
 155MACHINE_END
 156
 157MACHINE_START(MXLADS, "Freescale MXLADS")
 158        .phys_io        = IMX_IO_PHYS,
 159        .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
 160        .boot_params    = PHYS_OFFSET + 0x100,
 161        .map_io         = mx1_map_io,
 162        .init_irq       = mx1_init_irq,
 163        .timer          = &mx1ads_timer,
 164        .init_machine   = mx1ads_init,
 165MACHINE_END
 166