arch/arm/mach-imx/mach-mx51_3ds.c

   1 /*
   2  * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
   3  * Copyright (C) 2010 Jason Wang <jason77.wang@gmail.com>
   4  *
   5  * The code contained herein is licensed under the GNU General Public
   6  * License. You may obtain a copy of the GNU General Public License
   7  * Version 2 or later at the following locations:
   8  *
   9  * http://www.opensource.org/licenses/gpl-license.html
  10  * http://www.gnu.org/copyleft/gpl.html
  11  */
  12
  13 #include <linux/irq.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/gpio.h>
  17
  18 #include <asm/mach-types.h>
  19 #include <asm/mach/arch.h>
  20 #include <asm/mach/time.h>
  21
  22 #include <mach/hardware.h>
  23 #include <mach/common.h>
  24
  25 #include "3ds_debugboard.h"
  26 #include "devices-imx51.h"
  27 #include "iomux-mx51.h"
  28
  29 #define MX51_3DS_ECSPI2_CS      (GPIO_PORTC + 28)
  30
  31 static iomux_v3_cfg_t mx51_3ds_pads[] = {
  32         /* UART1 */
  33         MX51_PAD_UART1_RXD__UART1_RXD,
  34         MX51_PAD_UART1_TXD__UART1_TXD,
  35         MX51_PAD_UART1_RTS__UART1_RTS,
  36         MX51_PAD_UART1_CTS__UART1_CTS,
  37
  38         /* UART2 */
  39         MX51_PAD_UART2_RXD__UART2_RXD,
  40         MX51_PAD_UART2_TXD__UART2_TXD,
  41         MX51_PAD_EIM_D25__UART2_CTS,
  42         MX51_PAD_EIM_D26__UART2_RTS,
  43
  44         /* UART3 */
  45         MX51_PAD_UART3_RXD__UART3_RXD,
  46         MX51_PAD_UART3_TXD__UART3_TXD,
  47         MX51_PAD_EIM_D24__UART3_CTS,
  48         MX51_PAD_EIM_D27__UART3_RTS,
  49
  50         /* CPLD PARENT IRQ PIN */
  51         MX51_PAD_GPIO1_6__GPIO1_6,
  52
  53         /* KPP */
  54         MX51_PAD_KEY_ROW0__KEY_ROW0,
  55         MX51_PAD_KEY_ROW1__KEY_ROW1,
  56         MX51_PAD_KEY_ROW2__KEY_ROW2,
  57         MX51_PAD_KEY_ROW3__KEY_ROW3,
  58         MX51_PAD_KEY_COL0__KEY_COL0,
  59         MX51_PAD_KEY_COL1__KEY_COL1,
  60         MX51_PAD_KEY_COL2__KEY_COL2,
  61         MX51_PAD_KEY_COL3__KEY_COL3,
  62         MX51_PAD_KEY_COL4__KEY_COL4,
  63         MX51_PAD_KEY_COL5__KEY_COL5,
  64
  65         /* eCSPI2 */
  66         MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
  67         MX51_PAD_NANDF_RB3__ECSPI2_MISO,
  68         MX51_PAD_NANDF_D15__ECSPI2_MOSI,
  69         MX51_PAD_NANDF_D12__GPIO3_28,
  70 };
  71
  72 /* Serial ports */
  73 static const struct imxuart_platform_data uart_pdata __initconst = {
  74         .flags = IMXUART_HAVE_RTSCTS,
  75 };
  76
  77 static int mx51_3ds_board_keymap[] = {
  78         KEY(0, 0, KEY_1),
  79         KEY(0, 1, KEY_2),
  80         KEY(0, 2, KEY_3),
  81         KEY(0, 3, KEY_F1),
  82         KEY(0, 4, KEY_UP),
  83         KEY(0, 5, KEY_F2),
  84
  85         KEY(1, 0, KEY_4),
  86         KEY(1, 1, KEY_5),
  87         KEY(1, 2, KEY_6),
  88         KEY(1, 3, KEY_LEFT),
  89         KEY(1, 4, KEY_SELECT),
  90         KEY(1, 5, KEY_RIGHT),
  91
  92         KEY(2, 0, KEY_7),
  93         KEY(2, 1, KEY_8),
  94         KEY(2, 2, KEY_9),
  95         KEY(2, 3, KEY_F3),
  96         KEY(2, 4, KEY_DOWN),
  97         KEY(2, 5, KEY_F4),
  98
  99         KEY(3, 0, KEY_0),
 100         KEY(3, 1, KEY_OK),
 101         KEY(3, 2, KEY_ESC),
 102         KEY(3, 3, KEY_ENTER),
 103         KEY(3, 4, KEY_MENU),
 104         KEY(3, 5, KEY_BACK)
 105 };
 106
 107 static const struct matrix_keymap_data mx51_3ds_map_data __initconst = {
 108         .keymap         = mx51_3ds_board_keymap,
 109         .keymap_size    = ARRAY_SIZE(mx51_3ds_board_keymap),
 110 };
 111
 112 static int mx51_3ds_spi2_cs[] = {
 113         MXC_SPI_CS(0),
 114         MX51_3DS_ECSPI2_CS,
 115 };
 116
 117 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
 118         .chipselect     = mx51_3ds_spi2_cs,
 119         .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
 120 };
 121
 122 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
 123         {
 124          .modalias = "m25p80",
 125          .max_speed_hz = 25000000,      /* max spi clock (SCK) speed in HZ */
 126          .bus_num = 1,
 127          .chip_select = 1,
 128          .mode = SPI_MODE_0,
 129          .platform_data = NULL,},
 130 };
 131
 132 /*
 133  * Board specific initialization.
 134  */
 135 static void __init mx51_3ds_init(void)
 136 {
 137         imx51_soc_init();
 138
 139         mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
 140                                         ARRAY_SIZE(mx51_3ds_pads));
 141
 142         imx51_add_imx_uart(0, &uart_pdata);
 143         imx51_add_imx_uart(1, &uart_pdata);
 144         imx51_add_imx_uart(2, &uart_pdata);
 145
 146         imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
 147         spi_register_board_info(mx51_3ds_spi_nor_device,
 148                                 ARRAY_SIZE(mx51_3ds_spi_nor_device));
 149
 150         if (mxc_expio_init(MX51_CS5_BASE_ADDR, IMX_GPIO_NR(1, 6)))
 151                 printk(KERN_WARNING "Init of the debugboard failed, all "
 152                                     "devices on the board are unusable.\n");
 153
 154         imx51_add_sdhci_esdhc_imx(0, NULL);
 155         imx51_add_imx_keypad(&mx51_3ds_map_data);
 156         imx51_add_imx2_wdt(0);
 157 }
 158
 159 static void __init mx51_3ds_timer_init(void)
 160 {
 161         mx51_clocks_init(32768, 24000000, 22579200, 0);
 162 }
 163
 164 static struct sys_timer mx51_3ds_timer = {
 165         .init = mx51_3ds_timer_init,
 166 };
 167
 168 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
 169         /* Maintainer: Freescale Semiconductor, Inc. */
 170         .atag_offset = 0x100,
 171         .map_io = mx51_map_io,
 172         .init_early = imx51_init_early,
 173         .init_irq = mx51_init_irq,
 174         .handle_irq = imx51_handle_irq,
 175         .timer = &mx51_3ds_timer,
 176         .init_machine = mx51_3ds_init,
 177         .init_late      = imx51_init_late,
 178         .restart        = mxc_restart,
 179 MACHINE_END