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
  35 static 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
  61 static 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
  73 static struct physmap_flash_data mx1ads_flash_data = {
  74         .width          = 4,            /* bankwidth in bytes */
  75 };
  76
  77 static struct resource flash_resource = {
  78         .start  = IMX_CS0_PHYS,
  79         .end    = IMX_CS0_PHYS + SZ_32M - 1,
  80         .flags  = IORESOURCE_MEM,
  81 };
  82
  83 static 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  */
  93 static struct pcf857x_platform_data pcf857x_data[] = {
  94         {
  95                 .gpio_base = 4 * 32,
  96         }, {
  97                 .gpio_base = 4 * 32 + 16,
  98         }
  99 };
 100
 101 static struct imxi2c_platform_data mx1ads_i2c_data = {
 102         .bitrate = 100000,
 103 };
 104
 105 static struct i2c_board_info mx1ads_i2c_devices[] = {
 106         {
 107                 I2C_BOARD_INFO("pcf857x", 0x22),
 108                 .type = "pcf8575",
 109                 .platform_data = &pcf857x_data[0],
 110         }, {
 111                 I2C_BOARD_INFO("pcf857x", 0x24),
 112                 .type = "pcf8575",
 113                 .platform_data = &pcf857x_data[1],
 114         },
 115 };
 116
 117 /*
 118  * Board init
 119  */
 120 static void __init mx1ads_init(void)
 121 {
 122         mxc_gpio_setup_multiple_pins(mx1ads_pins,
 123                 ARRAY_SIZE(mx1ads_pins), "mx1ads");
 124
 125         /* UART */
 126         mxc_register_device(&imx_uart1_device, &uart_pdata[0]);
 127         mxc_register_device(&imx_uart2_device, &uart_pdata[1]);
 128
 129         /* Physmap flash */
 130         mxc_register_device(&flash_device, &mx1ads_flash_data);
 131
 132         /* I2C */
 133         i2c_register_board_info(0, mx1ads_i2c_devices,
 134                                 ARRAY_SIZE(mx1ads_i2c_devices));
 135
 136         mxc_register_device(&imx_i2c_device, &mx1ads_i2c_data);
 137 }
 138
 139 static void __init mx1ads_timer_init(void)
 140 {
 141         mx1_clocks_init(32000);
 142 }
 143
 144 struct sys_timer mx1ads_timer = {
 145         .init   = mx1ads_timer_init,
 146 };
 147
 148 MACHINE_START(MX1ADS, "Freescale MX1ADS")
 149         /* Maintainer: Sascha Hauer, Pengutronix */
 150         .phys_io        = IMX_IO_PHYS,
 151         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
 152         .boot_params    = PHYS_OFFSET + 0x100,
 153         .map_io         = mx1_map_io,
 154         .init_irq       = mxc_init_irq,
 155         .timer          = &mx1ads_timer,
 156         .init_machine   = mx1ads_init,
 157 MACHINE_END
 158
 159 MACHINE_START(MXLADS, "Freescale MXLADS")
 160         .phys_io        = IMX_IO_PHYS,
 161         .io_pg_offst    = (IMX_IO_BASE >> 18) & 0xfffc,
 162         .boot_params    = PHYS_OFFSET + 0x100,
 163         .map_io         = mx1_map_io,
 164         .init_irq       = mxc_init_irq,
 165         .timer          = &mx1ads_timer,
 166         .init_machine   = mx1ads_init,
 167 MACHINE_END