arch/arm/mach-imx/eukrea_mbimxsd25-baseboard.c

   1 /*
   2  * Copyright (C) 2010 Eric Benard - eric@eukrea.com
   3  *
   4  * Based on pcm970-baseboard.c which is :
   5  * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de)
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  19  * MA 02110-1301, USA.
  20  */
  21
  22 #include <linux/gpio.h>
  23 #include <linux/leds.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/input.h>
  26 #include <linux/spi/spi.h>
  27 #include <video/platform_lcd.h>
  28
  29 #include <mach/hardware.h>
  30 #include <mach/iomux-mx25.h>
  31 #include <mach/common.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <mach/mx25.h>
  35
  36 #include "devices-imx25.h"
  37
  38 static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
  39         /* LCD */
  40         MX25_PAD_LD0__LD0,
  41         MX25_PAD_LD1__LD1,
  42         MX25_PAD_LD2__LD2,
  43         MX25_PAD_LD3__LD3,
  44         MX25_PAD_LD4__LD4,
  45         MX25_PAD_LD5__LD5,
  46         MX25_PAD_LD6__LD6,
  47         MX25_PAD_LD7__LD7,
  48         MX25_PAD_LD8__LD8,
  49         MX25_PAD_LD9__LD9,
  50         MX25_PAD_LD10__LD10,
  51         MX25_PAD_LD11__LD11,
  52         MX25_PAD_LD12__LD12,
  53         MX25_PAD_LD13__LD13,
  54         MX25_PAD_LD14__LD14,
  55         MX25_PAD_LD15__LD15,
  56         MX25_PAD_GPIO_E__LD16,
  57         MX25_PAD_GPIO_F__LD17,
  58         MX25_PAD_HSYNC__HSYNC,
  59         MX25_PAD_VSYNC__VSYNC,
  60         MX25_PAD_LSCLK__LSCLK,
  61         MX25_PAD_OE_ACD__OE_ACD,
  62         MX25_PAD_CONTRAST__CONTRAST,
  63         /* LCD_PWR */
  64         MX25_PAD_PWM__GPIO_1_26,
  65         /* LED */
  66         MX25_PAD_POWER_FAIL__GPIO_3_19,
  67         /* SWITCH */
  68         MX25_PAD_VSTBY_ACK__GPIO_3_18,
  69         /* UART2 */
  70         MX25_PAD_UART2_RTS__UART2_RTS,
  71         MX25_PAD_UART2_CTS__UART2_CTS,
  72         MX25_PAD_UART2_TXD__UART2_TXD,
  73         MX25_PAD_UART2_RXD__UART2_RXD,
  74         /* SD1 */
  75         MX25_PAD_SD1_CMD__SD1_CMD,
  76         MX25_PAD_SD1_CLK__SD1_CLK,
  77         MX25_PAD_SD1_DATA0__SD1_DATA0,
  78         MX25_PAD_SD1_DATA1__SD1_DATA1,
  79         MX25_PAD_SD1_DATA2__SD1_DATA2,
  80         MX25_PAD_SD1_DATA3__SD1_DATA3,
  81         /* SD1 CD */
  82         MX25_PAD_DE_B__GPIO_2_20,
  83         /* I2S */
  84         MX25_PAD_KPP_COL3__AUD5_TXFS,
  85         MX25_PAD_KPP_COL2__AUD5_TXC,
  86         MX25_PAD_KPP_COL1__AUD5_RXD,
  87         MX25_PAD_KPP_COL0__AUD5_TXD,
  88         /* CAN */
  89         MX25_PAD_GPIO_D__CAN2_RX,
  90         MX25_PAD_GPIO_C__CAN2_TX,
  91         /* SPI1 */
  92         MX25_PAD_CSPI1_MOSI__CSPI1_MOSI,
  93         MX25_PAD_CSPI1_MISO__CSPI1_MISO,
  94         MX25_PAD_CSPI1_SS0__GPIO_1_16,
  95         MX25_PAD_CSPI1_SS1__GPIO_1_17,
  96         MX25_PAD_CSPI1_SCLK__CSPI1_SCLK,
  97         MX25_PAD_CSPI1_RDY__GPIO_2_22,
  98 };
  99
 100 #define GPIO_LED1               IMX_GPIO_NR(3, 19)
 101 #define GPIO_SWITCH1    IMX_GPIO_NR(3, 18)
 102 #define GPIO_SD1CD              IMX_GPIO_NR(2, 20)
 103 #define GPIO_LCDPWR             IMX_GPIO_NR(1, 26)
 104 #define GPIO_SPI1_SS0   IMX_GPIO_NR(1, 16)
 105 #define GPIO_SPI1_SS1   IMX_GPIO_NR(1, 17)
 106 #define GPIO_SPI1_IRQ   IMX_GPIO_NR(2, 22)
 107
 108 static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
 109         {
 110                 .mode   = {
 111                         .name           = "CMO-QVGA",
 112                         .refresh        = 60,
 113                         .xres           = 320,
 114                         .yres           = 240,
 115                         .pixclock       = KHZ2PICOS(6500),
 116                         .left_margin    = 30,
 117                         .right_margin   = 38,
 118                         .upper_margin   = 20,
 119                         .lower_margin   = 3,
 120                         .hsync_len      = 15,
 121                         .vsync_len      = 4,
 122                 },
 123                 .bpp    = 16,
 124                 .pcr    = 0xCAD08B80,
 125         }, {
 126                 .mode = {
 127                         .name           = "DVI-VGA",
 128                         .refresh        = 60,
 129                         .xres           = 640,
 130                         .yres           = 480,
 131                         .pixclock       = 32000,
 132                         .hsync_len      = 7,
 133                         .left_margin    = 100,
 134                         .right_margin   = 100,
 135                         .vsync_len      = 7,
 136                         .upper_margin   = 7,
 137                         .lower_margin   = 100,
 138                 },
 139                 .pcr            = 0xFA208B80,
 140                 .bpp            = 16,
 141         }, {
 142                 .mode = {
 143                         .name           = "DVI-SVGA",
 144                         .refresh        = 60,
 145                         .xres           = 800,
 146                         .yres           = 600,
 147                         .pixclock       = 25000,
 148                         .hsync_len      = 7,
 149                         .left_margin    = 75,
 150                         .right_margin   = 75,
 151                         .vsync_len      = 7,
 152                         .upper_margin   = 7,
 153                         .lower_margin   = 75,
 154                 },
 155                 .pcr            = 0xFA208B80,
 156                 .bpp            = 16,
 157         },
 158 };
 159
 160 static const struct imx_fb_platform_data eukrea_mximxsd_fb_pdata __initconst = {
 161         .mode           = eukrea_mximxsd_modes,
 162         .num_modes      = ARRAY_SIZE(eukrea_mximxsd_modes),
 163         .pwmr           = 0x00A903FF,
 164         .lscr1          = 0x00120300,
 165         .dmacr          = 0x00040060,
 166 };
 167
 168 static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
 169                                    unsigned int power)
 170 {
 171         if (power)
 172                 gpio_direction_output(GPIO_LCDPWR, 1);
 173         else
 174                 gpio_direction_output(GPIO_LCDPWR, 0);
 175 }
 176
 177 static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
 178         .set_power              = eukrea_mbimxsd_lcd_power_set,
 179 };
 180
 181 static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
 182         .name                   = "platform-lcd",
 183         .dev.platform_data      = &eukrea_mbimxsd_lcd_power_data,
 184 };
 185
 186 static const struct gpio_led eukrea_mbimxsd_leds[] __initconst = {
 187         {
 188                 .name                   = "led1",
 189                 .default_trigger        = "heartbeat",
 190                 .active_low             = 1,
 191                 .gpio                   = GPIO_LED1,
 192         },
 193 };
 194
 195 static const struct gpio_led_platform_data
 196                 eukrea_mbimxsd_led_info __initconst = {
 197         .leds           = eukrea_mbimxsd_leds,
 198         .num_leds       = ARRAY_SIZE(eukrea_mbimxsd_leds),
 199 };
 200
 201 static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
 202         {
 203                 .gpio           = GPIO_SWITCH1,
 204                 .code           = BTN_0,
 205                 .desc           = "BP1",
 206                 .active_low     = 1,
 207                 .wakeup         = 1,
 208         },
 209 };
 210
 211 static const struct gpio_keys_platform_data
 212                 eukrea_mbimxsd_button_data __initconst = {
 213         .buttons        = eukrea_mbimxsd_gpio_buttons,
 214         .nbuttons       = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
 215 };
 216
 217 static struct platform_device *platform_devices[] __initdata = {
 218         &eukrea_mbimxsd_lcd_powerdev,
 219 };
 220
 221 static const struct imxuart_platform_data uart_pdata __initconst = {
 222         .flags = IMXUART_HAVE_RTSCTS,
 223 };
 224
 225 static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
 226         {
 227                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 228         },
 229 };
 230
 231 static const
 232 struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
 233         .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
 234 };
 235
 236 static struct esdhc_platform_data sd1_pdata = {
 237         .cd_gpio = GPIO_SD1CD,
 238         .cd_type = ESDHC_CD_GPIO,
 239         .wp_type = ESDHC_WP_NONE,
 240 };
 241
 242 static struct spi_board_info eukrea_mbimxsd25_spi_board_info[] __initdata = {
 243         {
 244                 .modalias = "spidev",
 245                 .max_speed_hz = 20000000,
 246                 .bus_num = 0,
 247                 .chip_select = 0,
 248                 .mode = SPI_MODE_0,
 249         },
 250         {
 251                 .modalias = "spidev",
 252                 .max_speed_hz = 20000000,
 253                 .bus_num = 0,
 254                 .chip_select = 1,
 255                 .mode = SPI_MODE_0,
 256         },
 257 };
 258
 259 static int eukrea_mbimxsd25_spi_cs[] = {GPIO_SPI1_SS0, GPIO_SPI1_SS1};
 260
 261 static const struct spi_imx_master eukrea_mbimxsd25_spi0_data __initconst = {
 262         .chipselect     = eukrea_mbimxsd25_spi_cs,
 263         .num_chipselect = ARRAY_SIZE(eukrea_mbimxsd25_spi_cs),
 264 };
 265
 266 /*
 267  * system init for baseboard usage. Will be called by cpuimx25 init.
 268  *
 269  * Add platform devices present on this baseboard and init
 270  * them from CPU side as far as required to use them later on
 271  */
 272 void __init eukrea_mbimxsd25_baseboard_init(void)
 273 {
 274         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
 275                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
 276                 printk(KERN_ERR "error setting mbimxsd pads !\n");
 277
 278         imx25_add_imx_uart1(&uart_pdata);
 279         imx25_add_imx_fb(&eukrea_mximxsd_fb_pdata);
 280         imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 281
 282         imx25_add_flexcan1(NULL);
 283         imx25_add_sdhci_esdhc_imx(0, &sd1_pdata);
 284
 285         gpio_request(GPIO_LED1, "LED1");
 286         gpio_direction_output(GPIO_LED1, 1);
 287         gpio_free(GPIO_LED1);
 288
 289         gpio_request(GPIO_SWITCH1, "SWITCH1");
 290         gpio_direction_input(GPIO_SWITCH1);
 291         gpio_free(GPIO_SWITCH1);
 292
 293         gpio_request(GPIO_LCDPWR, "LCDPWR");
 294         gpio_direction_output(GPIO_LCDPWR, 1);
 295
 296         i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
 297                                 ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
 298
 299         gpio_request(GPIO_SPI1_IRQ, "SPI1_IRQ");
 300         gpio_direction_input(GPIO_SPI1_IRQ);
 301         gpio_free(GPIO_SPI1_IRQ);
 302         imx25_add_spi_imx0(&eukrea_mbimxsd25_spi0_data);
 303         spi_register_board_info(eukrea_mbimxsd25_spi_board_info,
 304                 ARRAY_SIZE(eukrea_mbimxsd25_spi_board_info));
 305
 306         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 307         gpio_led_register_device(-1, &eukrea_mbimxsd_led_info);
 308         imx_add_gpio_keys(&eukrea_mbimxsd_button_data);
 309 }