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/iomux-mx1.h>
  30 #include <mach/irqs.h>
  31
  32 #include "devices-imx1.h"
  33
  34 static const int mx1ads_pins[] __initconst = {
  35         /* UART1 */
  36         PC9_PF_UART1_CTS,
  37         PC10_PF_UART1_RTS,
  38         PC11_PF_UART1_TXD,
  39         PC12_PF_UART1_RXD,
  40         /* UART2 */
  41         PB28_PF_UART2_CTS,
  42         PB29_PF_UART2_RTS,
  43         PB30_PF_UART2_TXD,
  44         PB31_PF_UART2_RXD,
  45         /* I2C */
  46         PA15_PF_I2C_SDA,
  47         PA16_PF_I2C_SCL,
  48         /* SPI */
  49         PC13_PF_SPI1_SPI_RDY,
  50         PC14_PF_SPI1_SCLK,
  51         PC15_PF_SPI1_SS,
  52         PC16_PF_SPI1_MISO,
  53         PC17_PF_SPI1_MOSI,
  54 };
  55
  56 /*
  57  * UARTs platform data
  58  */
  59
  60 static const struct imxuart_platform_data uart0_pdata __initconst = {
  61         .flags = IMXUART_HAVE_RTSCTS,
  62 };
  63
  64 static const struct imxuart_platform_data uart1_pdata __initconst = {
  65         .flags = IMXUART_HAVE_RTSCTS,
  66 };
  67
  68 /*
  69  * Physmap flash
  70  */
  71
  72 static struct physmap_flash_data mx1ads_flash_data = {
  73         .width          = 4,            /* bankwidth in bytes */
  74 };
  75
  76 static struct resource flash_resource = {
  77         .start  = MX1_CS0_PHYS,
  78         .end    = MX1_CS0_PHYS + SZ_32M - 1,
  79         .flags  = IORESOURCE_MEM,
  80 };
  81
  82 static struct platform_device flash_device = {
  83         .name   = "physmap-flash",
  84         .id     = 0,
  85         .resource = &flash_resource,
  86         .num_resources = 1,
  87 };
  88
  89 /*
  90  * I2C
  91  */
  92 static struct pcf857x_platform_data pcf857x_data[] = {
  93         {
  94                 .gpio_base = 4 * 32,
  95         }, {
  96                 .gpio_base = 4 * 32 + 16,
  97         }
  98 };
  99
 100 static const struct imxi2c_platform_data mx1ads_i2c_data __initconst = {
 101         .bitrate = 100000,
 102 };
 103
 104 static struct i2c_board_info mx1ads_i2c_devices[] = {
 105         {
 106                 I2C_BOARD_INFO("pcf8575", 0x22),
 107                 .platform_data = &pcf857x_data[0],
 108         }, {
 109                 I2C_BOARD_INFO("pcf8575", 0x24),
 110                 .platform_data = &pcf857x_data[1],
 111         },
 112 };
 113
 114 /*
 115  * Board init
 116  */
 117 static void __init mx1ads_init(void)
 118 {
 119         mxc_gpio_setup_multiple_pins(mx1ads_pins,
 120                 ARRAY_SIZE(mx1ads_pins), "mx1ads");
 121
 122         /* UART */
 123         imx1_add_imx_uart0(&uart0_pdata);
 124         imx1_add_imx_uart1(&uart1_pdata);
 125
 126         /* Physmap flash */
 127         mxc_register_device(&flash_device, &mx1ads_flash_data);
 128
 129         /* I2C */
 130         i2c_register_board_info(0, mx1ads_i2c_devices,
 131                                 ARRAY_SIZE(mx1ads_i2c_devices));
 132
 133         imx1_add_imx_i2c(&mx1ads_i2c_data);
 134 }
 135
 136 static void __init mx1ads_timer_init(void)
 137 {
 138         mx1_clocks_init(32000);
 139 }
 140
 141 struct sys_timer mx1ads_timer = {
 142         .init   = mx1ads_timer_init,
 143 };
 144
 145 MACHINE_START(MX1ADS, "Freescale MX1ADS")
 146         /* Maintainer: Sascha Hauer, Pengutronix */
 147         .boot_params = MX1_PHYS_OFFSET + 0x100,
 148         .map_io = mx1_map_io,
 149         .init_early = imx1_init_early,
 150         .init_irq = mx1_init_irq,
 151         .timer = &mx1ads_timer,
 152         .init_machine = mx1ads_init,
 153 MACHINE_END
 154
 155 MACHINE_START(MXLADS, "Freescale MXLADS")
 156         .boot_params = MX1_PHYS_OFFSET + 0x100,
 157         .map_io = mx1_map_io,
 158         .init_early = imx1_init_early,
 159         .init_irq = mx1_init_irq,
 160         .timer = &mx1ads_timer,
 161         .init_machine = mx1ads_init,
 162 MACHINE_END