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         [3] = {
  73                 .start  = UART1_MINT_RTS,
  74                 .end    = UART1_MINT_RTS,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static struct platform_device imx_uart1_device = {
  80         .name           = "imx-uart",
  81         .id             = 0,
  82         .num_resources  = ARRAY_SIZE(imx_uart1_resources),
  83         .resource       = imx_uart1_resources,
  84         .dev = {
  85                 .platform_data = &uart_pdata,
  86         }
  87 };
  88
  89 static struct resource imx_uart2_resources[] = {
  90         [0] = {
  91                 .start  = 0x00207000,
  92                 .end    = 0x002070FF,
  93                 .flags  = IORESOURCE_MEM,
  94         },
  95         [1] = {
  96                 .start  = (UART2_MINT_RX),
  97                 .end    = (UART2_MINT_RX),
  98                 .flags  = IORESOURCE_IRQ,
  99         },
 100         [2] = {
 101                 .start  = (UART2_MINT_TX),
 102                 .end    = (UART2_MINT_TX),
 103                 .flags  = IORESOURCE_IRQ,
 104         },
 105         [3] = {
 106                 .start  = UART2_MINT_RTS,
 107                 .end    = UART2_MINT_RTS,
 108                 .flags  = IORESOURCE_IRQ,
 109         },
 110 };
 111
 112 static struct platform_device imx_uart2_device = {
 113         .name           = "imx-uart",
 114         .id             = 1,
 115         .num_resources  = ARRAY_SIZE(imx_uart2_resources),
 116         .resource       = imx_uart2_resources,
 117         .dev = {
 118                 .platform_data = &uart_pdata,
 119         }
 120 };
 121
 122 static struct platform_device *devices[] __initdata = {
 123         &cs89x0_device,
 124         &imx_uart1_device,
 125         &imx_uart2_device,
 126 };
 127
 128 #ifdef CONFIG_MMC_IMX
 129 static int mx1ads_mmc_card_present(struct device *dev)
 130 {
 131         /* MMC/SD Card Detect is PB 20 on MX1ADS V1.0.7 */
 132         return (SSR(1) & (1 << 20) ? 0 : 1);
 133 }
 134
 135 static struct imxmmc_platform_data mx1ads_mmc_info = {
 136        .card_present = mx1ads_mmc_card_present,
 137 };
 138 #endif
 139
 140 static void __init
 141 mx1ads_init(void)
 142 {
 143 #ifdef CONFIG_LEDS
 144         imx_gpio_mode(GPIO_PORTA | GPIO_OUT | 2);
 145 #endif
 146 #ifdef CONFIG_MMC_IMX
 147         /* SD/MMC card detect */
 148         imx_gpio_mode(GPIO_PORTB | GPIO_GIUS | GPIO_IN | 20);
 149         imx_set_mmc_info(&mx1ads_mmc_info);
 150 #endif
 151
 152         imx_gpio_mode(PC9_PF_UART1_CTS);
 153         imx_gpio_mode(PC10_PF_UART1_RTS);
 154         imx_gpio_mode(PC11_PF_UART1_TXD);
 155         imx_gpio_mode(PC12_PF_UART1_RXD);
 156
 157         imx_gpio_mode(PB28_PF_UART2_CTS);
 158         imx_gpio_mode(PB29_PF_UART2_RTS);
 159         imx_gpio_mode(PB30_PF_UART2_TXD);
 160         imx_gpio_mode(PB31_PF_UART2_RXD);
 161
 162         platform_add_devices(devices, ARRAY_SIZE(devices));
 163 }
 164
 165 static void __init
 166 mx1ads_map_io(void)
 167 {
 168         imx_map_io();
 169 }
 170
 171 MACHINE_START(MX1ADS, "Motorola MX1ADS")
 172         /* Maintainer: Sascha Hauer, Pengutronix */
 173         .phys_io        = 0x00200000,
 174         .io_pg_offst    = ((0xe0000000) >> 18) & 0xfffc,
 175         .boot_params    = 0x08000100,
 176         .map_io         = mx1ads_map_io,
 177         .init_irq       = imx_init_irq,
 178         .timer          = &imx_timer,
 179         .init_machine   = mx1ads_init,
 180 MACHINE_END