arch/arm/mach-imx/mach-mx1ads.c

   1 /*
   2  * arch/arm/mach-imx/mach-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-mx1.h>
  31 #include <mach/irqs.h>
  32
  33 #include "devices-imx1.h"
  34 #include "devices.h"
  35
  36 static int mx1ads_pins[] = {
  37         /* UART1 */
  38         PC9_PF_UART1_CTS,
  39         PC10_PF_UART1_RTS,
  40         PC11_PF_UART1_TXD,
  41         PC12_PF_UART1_RXD,
  42         /* UART2 */
  43         PB28_PF_UART2_CTS,
  44         PB29_PF_UART2_RTS,
  45         PB30_PF_UART2_TXD,
  46         PB31_PF_UART2_RXD,
  47         /* I2C */
  48         PA15_PF_I2C_SDA,
  49         PA16_PF_I2C_SCL,
  50         /* SPI */
  51         PC13_PF_SPI1_SPI_RDY,
  52         PC14_PF_SPI1_SCLK,
  53         PC15_PF_SPI1_SS,
  54         PC16_PF_SPI1_MISO,
  55         PC17_PF_SPI1_MOSI,
  56 };
  57
  58 /*
  59  * UARTs platform data
  60  */
  61
  62 static struct imxuart_platform_data uart_pdata[] = {
  63         {
  64                 .flags = IMXUART_HAVE_RTSCTS,
  65         }, {
  66                 .flags = IMXUART_HAVE_RTSCTS,
  67         },
  68 };
  69
  70 /*
  71  * Physmap flash
  72  */
  73
  74 static struct physmap_flash_data mx1ads_flash_data = {
  75         .width          = 4,            /* bankwidth in bytes */
  76 };
  77
  78 static struct resource flash_resource = {
  79         .start  = MX1_CS0_PHYS,
  80         .end    = MX1_CS0_PHYS + SZ_32M - 1,
  81         .flags  = IORESOURCE_MEM,
  82 };
  83
  84 static struct platform_device flash_device = {
  85         .name   = "physmap-flash",
  86         .id     = 0,
  87         .resource = &flash_resource,
  88         .num_resources = 1,
  89 };
  90
  91 /*
  92  * I2C
  93  */
  94 static struct pcf857x_platform_data pcf857x_data[] = {
  95         {
  96                 .gpio_base = 4 * 32,
  97         }, {
  98                 .gpio_base = 4 * 32 + 16,
  99         }
 100 };
 101
 102 static const struct imxi2c_platform_data mx1ads_i2c_data __initconst = {
 103         .bitrate = 100000,
 104 };
 105
 106 static struct i2c_board_info mx1ads_i2c_devices[] = {
 107         {
 108                 I2C_BOARD_INFO("pcf8575", 0x22),
 109                 .platform_data = &pcf857x_data[0],
 110         }, {
 111                 I2C_BOARD_INFO("pcf8575", 0x24),
 112                 .platform_data = &pcf857x_data[1],
 113         },
 114 };
 115
 116 /*
 117  * Board init
 118  */
 119 static void __init mx1ads_init(void)
 120 {
 121         mxc_gpio_setup_multiple_pins(mx1ads_pins,
 122                 ARRAY_SIZE(mx1ads_pins), "mx1ads");
 123
 124         /* UART */
 125         mxc_register_device(&imx1_uart_device0, &uart_pdata[0]);
 126         mxc_register_device(&imx1_uart_device1, &uart_pdata[1]);
 127
 128         /* Physmap flash */
 129         mxc_register_device(&flash_device, &mx1ads_flash_data);
 130
 131         /* I2C */
 132         i2c_register_board_info(0, mx1ads_i2c_devices,
 133                                 ARRAY_SIZE(mx1ads_i2c_devices));
 134
 135         imx1_add_i2c_imx(&mx1ads_i2c_data);
 136 }
 137
 138 static void __init mx1ads_timer_init(void)
 139 {
 140         mx1_clocks_init(32000);
 141 }
 142
 143 struct sys_timer mx1ads_timer = {
 144         .init   = mx1ads_timer_init,
 145 };
 146
 147 MACHINE_START(MX1ADS, "Freescale MX1ADS")
 148         /* Maintainer: Sascha Hauer, Pengutronix */
 149         .phys_io        = MX1_IO_BASE_ADDR,
 150         .io_pg_offst    = (MX1_IO_BASE_ADDR_VIRT >> 18) & 0xfffc,
 151         .boot_params    = MX1_PHYS_OFFSET + 0x100,
 152         .map_io         = mx1_map_io,
 153         .init_irq       = mx1_init_irq,
 154         .timer          = &mx1ads_timer,
 155         .init_machine   = mx1ads_init,
 156 MACHINE_END
 157
 158 MACHINE_START(MXLADS, "Freescale MXLADS")
 159         .phys_io        = MX1_IO_BASE_ADDR,
 160         .io_pg_offst    = (MX1_IO_BASE_ADDR_VIRT >> 18) & 0xfffc,
 161         .boot_params    = MX1_PHYS_OFFSET + 0x100,
 162         .map_io         = mx1_map_io,
 163         .init_irq       = mx1_init_irq,
 164         .timer          = &mx1ads_timer,
 165         .init_machine   = mx1ads_init,
 166 MACHINE_END