arch/arm/mach-imx/mach-mx25_3ds.c

   1 /*
   2  * Copyright 2009 Sascha Hauer, <kernel@pengutronix.de>
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11  * GNU General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License
  14  * along with this program; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16  * Boston, MA  02110-1301, USA.
  17  */
  18
  19 /*
  20  * This machine is known as:
  21  *  - i.MX25 3-Stack Development System
  22  *  - i.MX25 Platform Development Kit (i.MX25 PDK)
  23  */
  24
  25 #include <linux/types.h>
  26 #include <linux/init.h>
  27 #include <linux/delay.h>
  28 #include <linux/clk.h>
  29 #include <linux/irq.h>
  30 #include <linux/gpio.h>
  31 #include <linux/platform_device.h>
  32 #include <linux/usb/otg.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/time.h>
  38 #include <asm/memory.h>
  39 #include <asm/mach/map.h>
  40 #include <mach/common.h>
  41 #include <mach/mx25.h>
  42 #include <mach/iomux-mx25.h>
  43
  44 #include "devices-imx25.h"
  45
  46 #define MX25PDK_CAN_PWDN        IMX_GPIO_NR(4, 6)
  47
  48 static const struct imxuart_platform_data uart_pdata __initconst = {
  49         .flags = IMXUART_HAVE_RTSCTS,
  50 };
  51
  52 static iomux_v3_cfg_t mx25pdk_pads[] = {
  53         MX25_PAD_FEC_MDC__FEC_MDC,
  54         MX25_PAD_FEC_MDIO__FEC_MDIO,
  55         MX25_PAD_FEC_TDATA0__FEC_TDATA0,
  56         MX25_PAD_FEC_TDATA1__FEC_TDATA1,
  57         MX25_PAD_FEC_TX_EN__FEC_TX_EN,
  58         MX25_PAD_FEC_RDATA0__FEC_RDATA0,
  59         MX25_PAD_FEC_RDATA1__FEC_RDATA1,
  60         MX25_PAD_FEC_RX_DV__FEC_RX_DV,
  61         MX25_PAD_FEC_TX_CLK__FEC_TX_CLK,
  62         MX25_PAD_A17__GPIO_2_3, /* FEC_EN, GPIO 35 */
  63         MX25_PAD_D12__GPIO_4_8, /* FEC_RESET_B, GPIO 104 */
  64
  65         /* LCD */
  66         MX25_PAD_LD0__LD0,
  67         MX25_PAD_LD1__LD1,
  68         MX25_PAD_LD2__LD2,
  69         MX25_PAD_LD3__LD3,
  70         MX25_PAD_LD4__LD4,
  71         MX25_PAD_LD5__LD5,
  72         MX25_PAD_LD6__LD6,
  73         MX25_PAD_LD7__LD7,
  74         MX25_PAD_LD8__LD8,
  75         MX25_PAD_LD9__LD9,
  76         MX25_PAD_LD10__LD10,
  77         MX25_PAD_LD11__LD11,
  78         MX25_PAD_LD12__LD12,
  79         MX25_PAD_LD13__LD13,
  80         MX25_PAD_LD14__LD14,
  81         MX25_PAD_LD15__LD15,
  82         MX25_PAD_GPIO_E__LD16,
  83         MX25_PAD_GPIO_F__LD17,
  84         MX25_PAD_HSYNC__HSYNC,
  85         MX25_PAD_VSYNC__VSYNC,
  86         MX25_PAD_LSCLK__LSCLK,
  87         MX25_PAD_OE_ACD__OE_ACD,
  88         MX25_PAD_CONTRAST__CONTRAST,
  89
  90         /* Keypad */
  91         MX25_PAD_KPP_ROW0__KPP_ROW0,
  92         MX25_PAD_KPP_ROW1__KPP_ROW1,
  93         MX25_PAD_KPP_ROW2__KPP_ROW2,
  94         MX25_PAD_KPP_ROW3__KPP_ROW3,
  95         MX25_PAD_KPP_COL0__KPP_COL0,
  96         MX25_PAD_KPP_COL1__KPP_COL1,
  97         MX25_PAD_KPP_COL2__KPP_COL2,
  98         MX25_PAD_KPP_COL3__KPP_COL3,
  99
 100         /* SD1 */
 101         MX25_PAD_SD1_CMD__SD1_CMD,
 102         MX25_PAD_SD1_CLK__SD1_CLK,
 103         MX25_PAD_SD1_DATA0__SD1_DATA0,
 104         MX25_PAD_SD1_DATA1__SD1_DATA1,
 105         MX25_PAD_SD1_DATA2__SD1_DATA2,
 106         MX25_PAD_SD1_DATA3__SD1_DATA3,
 107         MX25_PAD_A14__GPIO_2_0, /* WriteProtect */
 108         MX25_PAD_A15__GPIO_2_1, /* CardDetect */
 109
 110         /* I2C1 */
 111         MX25_PAD_I2C1_CLK__I2C1_CLK,
 112         MX25_PAD_I2C1_DAT__I2C1_DAT,
 113
 114         /* CAN1 */
 115         MX25_PAD_GPIO_A__CAN1_TX,
 116         MX25_PAD_GPIO_B__CAN1_RX,
 117         MX25_PAD_D14__GPIO_4_6, /* CAN_PWDN */
 118 };
 119
 120 static const struct fec_platform_data mx25_fec_pdata __initconst = {
 121         .phy    = PHY_INTERFACE_MODE_RMII,
 122 };
 123
 124 #define FEC_ENABLE_GPIO         IMX_GPIO_NR(2, 3)
 125 #define FEC_RESET_B_GPIO        IMX_GPIO_NR(4, 8)
 126
 127 static void __init mx25pdk_fec_reset(void)
 128 {
 129         gpio_request(FEC_ENABLE_GPIO, "FEC PHY enable");
 130         gpio_request(FEC_RESET_B_GPIO, "FEC PHY reset");
 131
 132         gpio_direction_output(FEC_ENABLE_GPIO, 0);  /* drop PHY power */
 133         gpio_direction_output(FEC_RESET_B_GPIO, 0); /* assert reset */
 134         udelay(2);
 135
 136         /* turn on PHY power and lift reset */
 137         gpio_set_value(FEC_ENABLE_GPIO, 1);
 138         gpio_set_value(FEC_RESET_B_GPIO, 1);
 139 }
 140
 141 static const struct mxc_nand_platform_data
 142 mx25pdk_nand_board_info __initconst = {
 143         .width          = 1,
 144         .hw_ecc         = 1,
 145         .flash_bbt      = 1,
 146 };
 147
 148 static struct imx_fb_videomode mx25pdk_modes[] = {
 149         {
 150                 .mode   = {
 151                         .name           = "CRT-VGA",
 152                         .refresh        = 60,
 153                         .xres           = 640,
 154                         .yres           = 480,
 155                         .pixclock       = 39683,
 156                         .left_margin    = 45,
 157                         .right_margin   = 114,
 158                         .upper_margin   = 33,
 159                         .lower_margin   = 11,
 160                         .hsync_len      = 1,
 161                         .vsync_len      = 1,
 162                 },
 163                 .bpp    = 16,
 164                 .pcr    = 0xFA208B80,
 165         },
 166 };
 167
 168 static const struct imx_fb_platform_data mx25pdk_fb_pdata __initconst = {
 169         .mode           = mx25pdk_modes,
 170         .num_modes      = ARRAY_SIZE(mx25pdk_modes),
 171         .pwmr           = 0x00A903FF,
 172         .lscr1          = 0x00120300,
 173         .dmacr          = 0x00020010,
 174 };
 175
 176 static const uint32_t mx25pdk_keymap[] = {
 177         KEY(0, 0, KEY_UP),
 178         KEY(0, 1, KEY_DOWN),
 179         KEY(0, 2, KEY_VOLUMEDOWN),
 180         KEY(0, 3, KEY_HOME),
 181         KEY(1, 0, KEY_RIGHT),
 182         KEY(1, 1, KEY_LEFT),
 183         KEY(1, 2, KEY_ENTER),
 184         KEY(1, 3, KEY_VOLUMEUP),
 185         KEY(2, 0, KEY_F6),
 186         KEY(2, 1, KEY_F8),
 187         KEY(2, 2, KEY_F9),
 188         KEY(2, 3, KEY_F10),
 189         KEY(3, 0, KEY_F1),
 190         KEY(3, 1, KEY_F2),
 191         KEY(3, 2, KEY_F3),
 192         KEY(3, 3, KEY_POWER),
 193 };
 194
 195 static const struct matrix_keymap_data mx25pdk_keymap_data __initconst = {
 196         .keymap         = mx25pdk_keymap,
 197         .keymap_size    = ARRAY_SIZE(mx25pdk_keymap),
 198 };
 199
 200 static int mx25pdk_usbh2_init(struct platform_device *pdev)
 201 {
 202         return mx25_initialize_usb_hw(pdev->id, MXC_EHCI_INTERNAL_PHY);
 203 }
 204
 205 static const struct mxc_usbh_platform_data usbh2_pdata __initconst = {
 206         .init   = mx25pdk_usbh2_init,
 207         .portsc = MXC_EHCI_MODE_SERIAL,
 208 };
 209
 210 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
 211         .operating_mode = FSL_USB2_DR_DEVICE,
 212         .phy_mode       = FSL_USB2_PHY_UTMI,
 213 };
 214
 215 static const struct imxi2c_platform_data mx25_3ds_i2c0_data __initconst = {
 216         .bitrate = 100000,
 217 };
 218
 219 #define SD1_GPIO_WP     IMX_GPIO_NR(2, 0)
 220 #define SD1_GPIO_CD     IMX_GPIO_NR(2, 1)
 221
 222 static const struct esdhc_platform_data mx25pdk_esdhc_pdata __initconst = {
 223         .wp_gpio = SD1_GPIO_WP,
 224         .cd_gpio = SD1_GPIO_CD,
 225         .wp_type = ESDHC_WP_GPIO,
 226         .cd_type = ESDHC_CD_GPIO,
 227 };
 228
 229 static void __init mx25pdk_init(void)
 230 {
 231         imx25_soc_init();
 232
 233         mxc_iomux_v3_setup_multiple_pads(mx25pdk_pads,
 234                         ARRAY_SIZE(mx25pdk_pads));
 235
 236         imx25_add_imx_uart0(&uart_pdata);
 237         imx25_add_fsl_usb2_udc(&otg_device_pdata);
 238         imx25_add_mxc_ehci_hs(&usbh2_pdata);
 239         imx25_add_mxc_nand(&mx25pdk_nand_board_info);
 240         imx25_add_imxdi_rtc(NULL);
 241         imx25_add_imx_fb(&mx25pdk_fb_pdata);
 242         imx25_add_imx2_wdt(NULL);
 243
 244         mx25pdk_fec_reset();
 245         imx25_add_fec(&mx25_fec_pdata);
 246         imx25_add_imx_keypad(&mx25pdk_keymap_data);
 247
 248         imx25_add_sdhci_esdhc_imx(0, &mx25pdk_esdhc_pdata);
 249         imx25_add_imx_i2c0(&mx25_3ds_i2c0_data);
 250
 251         gpio_request_one(MX25PDK_CAN_PWDN, GPIOF_OUT_INIT_LOW, "can-pwdn");
 252         imx25_add_flexcan0(NULL);
 253 }
 254
 255 static void __init mx25pdk_timer_init(void)
 256 {
 257         mx25_clocks_init();
 258 }
 259
 260 static struct sys_timer mx25pdk_timer = {
 261         .init   = mx25pdk_timer_init,
 262 };
 263
 264 MACHINE_START(MX25_3DS, "Freescale MX25PDK (3DS)")
 265         /* Maintainer: Freescale Semiconductor, Inc. */
 266         .atag_offset = 0x100,
 267         .map_io = mx25_map_io,
 268         .init_early = imx25_init_early,
 269         .init_irq = mx25_init_irq,
 270         .handle_irq = imx25_handle_irq,
 271         .timer = &mx25pdk_timer,
 272         .init_machine = mx25pdk_init,
 273         .restart        = mxc_restart,
 274 MACHINE_END