release/src-rt-6.x/linux/linux-2.6/arch/arm/mach-imx/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/device.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <asm/system.h>
  19 #include <asm/hardware.h>
  20 #include <asm/irq.h>
  21 #include <asm/pgtable.h>
  22 #include <asm/page.h>
  23
  24 #include <asm/mach/map.h>
  25 #include <asm/mach-types.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/arch/mmc.h>
  29 #include <asm/arch/imx-uart.h>
  30 #include <linux/interrupt.h>
  31 #include "generic.h"
  32
  33 static struct resource cs89x0_resources[] = {
  34         [0] = {
  35                 .start  = IMX_CS4_PHYS + 0x300,
  36                 .end    = IMX_CS4_PHYS + 0x300 + 16,
  37                 .flags  = IORESOURCE_MEM,
  38         },
  39         [1] = {
  40                 .start  = IRQ_GPIOC(17),
  41                 .end    = IRQ_GPIOC(17),
  42                 .flags  = IORESOURCE_IRQ,
  43         },
  44 };
  45
  46 static struct platform_device cs89x0_device = {
  47         .name           = "cirrus-cs89x0",
  48         .num_resources  = ARRAY_SIZE(cs89x0_resources),
  49         .resource       = cs89x0_resources,
  50 };
  51
  52 static struct imxuart_platform_data uart_pdata = {
  53         .flags = IMXUART_HAVE_RTSCTS,
  54 };
  55
  56 static struct resource imx_uart1_resources[] = {
  57         [0] = {
  58                 .start  = 0x00206000,
  59                 .end    = 0x002060FF,
  60                 .flags  = IORESOURCE_MEM,
  61         },
  62         [1] = {
  63                 .start  = (UART1_MINT_RX),
  64                 .end    = (UART1_MINT_RX),
  65                 .flags  = IORESOURCE_IRQ,
  66         },
  67         [2] = {
  68                 .start  = (UART1_MINT_TX),
  69                 .end    = (UART1_MINT_TX),
  70                 .flags  = IORESOURCE_IRQ,
  71         },
  72 };
  73
  74 static struct platform_device imx_uart1_device = {
  75         .name           = "imx-uart",
  76         .id             = 0,
  77         .num_resources  = ARRAY_SIZE(imx_uart1_resources),
  78         .resource       = imx_uart1_resources,
  79         .dev = {
  80                 .platform_data = &uart_pdata,
  81         }
  82 };
  83
  84 static struct resource imx_uart2_resources[] = {
  85         [0] = {
  86                 .start  = 0x00207000,
  87                 .end    = 0x002070FF,
  88                 .flags  = IORESOURCE_MEM,
  89         },
  90         [1] = {
  91                 .start  = (UART2_MINT_RX),
  92                 .end    = (UART2_MINT_RX),
  93                 .flags  = IORESOURCE_IRQ,
  94         },
  95         [2] = {
  96                 .start  = (UART2_MINT_TX),
  97                 .end    = (UART2_MINT_TX),
  98                 .flags  = IORESOURCE_IRQ,
  99         },
 100 };
 101
 102 static struct platform_device imx_uart2_device = {
 103         .name           = "imx-uart",
 104         .id             = 1,
 105         .num_resources  = ARRAY_SIZE(imx_uart2_resources),
 106         .resource       = imx_uart2_resources,
 107         .dev = {
 108                 .platform_data = &uart_pdata,
 109         }
 110 };
 111
 112 static struct platform_device *devices[] __initdata = {
 113         &cs89x0_device,
 114         &imx_uart1_device,
 115         &imx_uart2_device,
 116 };
 117
 118 #ifdef CONFIG_MMC_IMX
 119 static int mx1ads_mmc_card_present(void)
 120 {
 121         /* MMC/SD Card Detect is PB 20 on MX1ADS V1.0.7 */
 122         return (SSR(1) & (1 << 20) ? 0 : 1);
 123 }
 124
 125 static struct imxmmc_platform_data mx1ads_mmc_info = {
 126        .card_present = mx1ads_mmc_card_present,
 127 };
 128 #endif
 129
 130 static void __init
 131 mx1ads_init(void)
 132 {
 133 #ifdef CONFIG_LEDS
 134         imx_gpio_mode(GPIO_PORTA | GPIO_OUT | 2);
 135 #endif
 136 #ifdef CONFIG_MMC_IMX
 137         /* SD/MMC card detect */
 138         imx_gpio_mode(GPIO_PORTB | GPIO_GIUS | GPIO_IN | 20);
 139         imx_set_mmc_info(&mx1ads_mmc_info);
 140 #endif
 141
 142         imx_gpio_mode(PC9_PF_UART1_CTS);
 143         imx_gpio_mode(PC10_PF_UART1_RTS);
 144         imx_gpio_mode(PC11_PF_UART1_TXD);
 145         imx_gpio_mode(PC12_PF_UART1_RXD);
 146
 147         imx_gpio_mode(PB28_PF_UART2_CTS);
 148         imx_gpio_mode(PB29_PF_UART2_RTS);
 149         imx_gpio_mode(PB30_PF_UART2_TXD);
 150         imx_gpio_mode(PB31_PF_UART2_RXD);
 151
 152         platform_add_devices(devices, ARRAY_SIZE(devices));
 153 }
 154
 155 static void __init
 156 mx1ads_map_io(void)
 157 {
 158         imx_map_io();
 159 }
 160
 161 MACHINE_START(MX1ADS, "Motorola MX1ADS")
 162         /* Maintainer: Sascha Hauer, Pengutronix */
 163         .phys_io        = 0x00200000,
 164         .io_pg_offst    = ((0xe0000000) >> 18) & 0xfffc,
 165         .boot_params    = 0x08000100,
 166         .map_io         = mx1ads_map_io,
 167         .init_irq       = imx_init_irq,
 168         .timer          = &imx_timer,
 169         .init_machine   = mx1ads_init,
 170 MACHINE_END