arch/arm/mach-mx5/board-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/input/matrix_keypad.h>
  16 #include <linux/spi/spi.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 #include <mach/iomux-mx51.h>
  25 #include <mach/3ds_debugboard.h>
  26
  27 #include "devices-imx51.h"
  28 #include "devices.h"
  29
  30 #define EXPIO_PARENT_INT        (MXC_INTERNAL_IRQS + GPIO_PORTA + 6)
  31 #define MX51_3DS_ECSPI2_CS      (GPIO_PORTC + 28)
  32
  33 static iomux_v3_cfg_t mx51_3ds_pads[] = {
  34         /* UART1 */
  35         MX51_PAD_UART1_RXD__UART1_RXD,
  36         MX51_PAD_UART1_TXD__UART1_TXD,
  37         MX51_PAD_UART1_RTS__UART1_RTS,
  38         MX51_PAD_UART1_CTS__UART1_CTS,
  39
  40         /* UART2 */
  41         MX51_PAD_UART2_RXD__UART2_RXD,
  42         MX51_PAD_UART2_TXD__UART2_TXD,
  43         MX51_PAD_EIM_D25__UART2_CTS,
  44         MX51_PAD_EIM_D26__UART2_RTS,
  45
  46         /* UART3 */
  47         MX51_PAD_UART3_RXD__UART3_RXD,
  48         MX51_PAD_UART3_TXD__UART3_TXD,
  49         MX51_PAD_EIM_D24__UART3_CTS,
  50         MX51_PAD_EIM_D27__UART3_RTS,
  51
  52         /* CPLD PARENT IRQ PIN */
  53         MX51_PAD_GPIO_1_6__GPIO_1_6,
  54
  55         /* KPP */
  56         MX51_PAD_KEY_ROW0__KEY_ROW0,
  57         MX51_PAD_KEY_ROW1__KEY_ROW1,
  58         MX51_PAD_KEY_ROW2__KEY_ROW2,
  59         MX51_PAD_KEY_ROW3__KEY_ROW3,
  60         MX51_PAD_KEY_COL0__KEY_COL0,
  61         MX51_PAD_KEY_COL1__KEY_COL1,
  62         MX51_PAD_KEY_COL2__KEY_COL2,
  63         MX51_PAD_KEY_COL3__KEY_COL3,
  64         MX51_PAD_KEY_COL4__KEY_COL4,
  65         MX51_PAD_KEY_COL5__KEY_COL5,
  66
  67         /* eCSPI2 */
  68         MX51_PAD_NANDF_RB2__ECSPI2_SCLK,
  69         MX51_PAD_NANDF_RB3__ECSPI2_MISO,
  70         MX51_PAD_NANDF_D15__ECSPI2_MOSI,
  71         MX51_PAD_NANDF_D12__GPIO_3_28,
  72 };
  73
  74 /* Serial ports */
  75 #if defined(CONFIG_SERIAL_IMX) || defined(CONFIG_SERIAL_IMX_MODULE)
  76 static const struct imxuart_platform_data uart_pdata __initconst = {
  77         .flags = IMXUART_HAVE_RTSCTS,
  78 };
  79
  80 static inline void mxc_init_imx_uart(void)
  81 {
  82         imx51_add_imx_uart(0, &uart_pdata);
  83         imx51_add_imx_uart(1, &uart_pdata);
  84         imx51_add_imx_uart(2, &uart_pdata);
  85 }
  86 #else /* !SERIAL_IMX */
  87 static inline void mxc_init_imx_uart(void)
  88 {
  89 }
  90 #endif /* SERIAL_IMX */
  91
  92 #if defined(CONFIG_KEYBOARD_IMX) || defined(CONFIG_KEYBOARD_IMX_MODULE)
  93 static int mx51_3ds_board_keymap[] = {
  94         KEY(0, 0, KEY_1),
  95         KEY(0, 1, KEY_2),
  96         KEY(0, 2, KEY_3),
  97         KEY(0, 3, KEY_F1),
  98         KEY(0, 4, KEY_UP),
  99         KEY(0, 5, KEY_F2),
 100
 101         KEY(1, 0, KEY_4),
 102         KEY(1, 1, KEY_5),
 103         KEY(1, 2, KEY_6),
 104         KEY(1, 3, KEY_LEFT),
 105         KEY(1, 4, KEY_SELECT),
 106         KEY(1, 5, KEY_RIGHT),
 107
 108         KEY(2, 0, KEY_7),
 109         KEY(2, 1, KEY_8),
 110         KEY(2, 2, KEY_9),
 111         KEY(2, 3, KEY_F3),
 112         KEY(2, 4, KEY_DOWN),
 113         KEY(2, 5, KEY_F4),
 114
 115         KEY(3, 0, KEY_0),
 116         KEY(3, 1, KEY_OK),
 117         KEY(3, 2, KEY_ESC),
 118         KEY(3, 3, KEY_ENTER),
 119         KEY(3, 4, KEY_MENU),
 120         KEY(3, 5, KEY_BACK)
 121 };
 122
 123 static struct matrix_keymap_data mx51_3ds_map_data = {
 124         .keymap         = mx51_3ds_board_keymap,
 125         .keymap_size    = ARRAY_SIZE(mx51_3ds_board_keymap),
 126 };
 127
 128 static void mxc_init_keypad(void)
 129 {
 130         mxc_register_device(&mxc_keypad_device, &mx51_3ds_map_data);
 131 }
 132 #else
 133 static inline void mxc_init_keypad(void)
 134 {
 135 }
 136 #endif
 137
 138 static int mx51_3ds_spi2_cs[] = {
 139         MXC_SPI_CS(0),
 140         MX51_3DS_ECSPI2_CS,
 141 };
 142
 143 static const struct spi_imx_master mx51_3ds_ecspi2_pdata __initconst = {
 144         .chipselect     = mx51_3ds_spi2_cs,
 145         .num_chipselect = ARRAY_SIZE(mx51_3ds_spi2_cs),
 146 };
 147
 148 static struct spi_board_info mx51_3ds_spi_nor_device[] = {
 149         {
 150          .modalias = "m25p80",
 151          .max_speed_hz = 25000000,      /* max spi clock (SCK) speed in HZ */
 152          .bus_num = 1,
 153          .chip_select = 1,
 154          .mode = SPI_MODE_0,
 155          .platform_data = NULL,},
 156 };
 157
 158 /*
 159  * Board specific initialization.
 160  */
 161 static void __init mxc_board_init(void)
 162 {
 163         mxc_iomux_v3_setup_multiple_pads(mx51_3ds_pads,
 164                                         ARRAY_SIZE(mx51_3ds_pads));
 165         mxc_init_imx_uart();
 166
 167         imx51_add_ecspi(1, &mx51_3ds_ecspi2_pdata);
 168         spi_register_board_info(mx51_3ds_spi_nor_device,
 169                                 ARRAY_SIZE(mx51_3ds_spi_nor_device));
 170
 171         if (mxc_expio_init(MX51_CS5_BASE_ADDR, EXPIO_PARENT_INT))
 172                 printk(KERN_WARNING "Init of the debugboard failed, all "
 173                                     "devices on the board are unusable.\n");
 174
 175         mxc_init_keypad();
 176 }
 177
 178 static void __init mx51_3ds_timer_init(void)
 179 {
 180         mx51_clocks_init(32768, 24000000, 22579200, 0);
 181 }
 182
 183 static struct sys_timer mxc_timer = {
 184         .init   = mx51_3ds_timer_init,
 185 };
 186
 187 MACHINE_START(MX51_3DS, "Freescale MX51 3-Stack Board")
 188         /* Maintainer: Freescale Semiconductor, Inc. */
 189         .boot_params = PHYS_OFFSET + 0x100,
 190         .map_io = mx51_map_io,
 191         .init_irq = mx51_init_irq,
 192         .init_machine = mxc_board_init,
 193         .timer = &mxc_timer,
 194 MACHINE_END