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/gpio_keys.h>
  26 #include <linux/input.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 #include <mach/imx-uart.h>
  36 #include <mach/audmux.h>
  37 #include <mach/esdhc.h>
  38
  39 #include "devices-imx25.h"
  40
  41 static iomux_v3_cfg_t eukrea_mbimxsd_pads[] = {
  42         /* LCD */
  43         MX25_PAD_LD0__LD0,
  44         MX25_PAD_LD1__LD1,
  45         MX25_PAD_LD2__LD2,
  46         MX25_PAD_LD3__LD3,
  47         MX25_PAD_LD4__LD4,
  48         MX25_PAD_LD5__LD5,
  49         MX25_PAD_LD6__LD6,
  50         MX25_PAD_LD7__LD7,
  51         MX25_PAD_LD8__LD8,
  52         MX25_PAD_LD9__LD9,
  53         MX25_PAD_LD10__LD10,
  54         MX25_PAD_LD11__LD11,
  55         MX25_PAD_LD12__LD12,
  56         MX25_PAD_LD13__LD13,
  57         MX25_PAD_LD14__LD14,
  58         MX25_PAD_LD15__LD15,
  59         MX25_PAD_GPIO_E__LD16,
  60         MX25_PAD_GPIO_F__LD17,
  61         MX25_PAD_HSYNC__HSYNC,
  62         MX25_PAD_VSYNC__VSYNC,
  63         MX25_PAD_LSCLK__LSCLK,
  64         MX25_PAD_OE_ACD__OE_ACD,
  65         MX25_PAD_CONTRAST__CONTRAST,
  66         /* LCD_PWR */
  67         MX25_PAD_PWM__GPIO_1_26,
  68         /* LED */
  69         MX25_PAD_POWER_FAIL__GPIO_3_19,
  70         /* SWITCH */
  71         MX25_PAD_VSTBY_ACK__GPIO_3_18,
  72         /* UART2 */
  73         MX25_PAD_UART2_RTS__UART2_RTS,
  74         MX25_PAD_UART2_CTS__UART2_CTS,
  75         MX25_PAD_UART2_TXD__UART2_TXD,
  76         MX25_PAD_UART2_RXD__UART2_RXD,
  77         /* SD1 */
  78         MX25_PAD_SD1_CMD__SD1_CMD,
  79         MX25_PAD_SD1_CLK__SD1_CLK,
  80         MX25_PAD_SD1_DATA0__SD1_DATA0,
  81         MX25_PAD_SD1_DATA1__SD1_DATA1,
  82         MX25_PAD_SD1_DATA2__SD1_DATA2,
  83         MX25_PAD_SD1_DATA3__SD1_DATA3,
  84         /* SD1 CD */
  85         MX25_PAD_DE_B__GPIO_2_20,
  86         /* I2S */
  87         MX25_PAD_KPP_COL3__AUD5_TXFS,
  88         MX25_PAD_KPP_COL2__AUD5_TXC,
  89         MX25_PAD_KPP_COL1__AUD5_RXD,
  90         MX25_PAD_KPP_COL0__AUD5_TXD,
  91         /* CAN */
  92         MX25_PAD_GPIO_D__CAN2_RX,
  93         MX25_PAD_GPIO_C__CAN2_TX,
  94 };
  95
  96 #define GPIO_LED1       83
  97 #define GPIO_SWITCH1    82
  98 #define GPIO_SD1CD      52
  99 #define GPIO_LCDPWR     26
 100
 101 static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
 102         {
 103                 .mode   = {
 104                         .name           = "CMO-QVGA",
 105                         .refresh        = 60,
 106                         .xres           = 320,
 107                         .yres           = 240,
 108                         .pixclock       = KHZ2PICOS(6500),
 109                         .left_margin    = 30,
 110                         .right_margin   = 38,
 111                         .upper_margin   = 20,
 112                         .lower_margin   = 3,
 113                         .hsync_len      = 15,
 114                         .vsync_len      = 4,
 115                 },
 116                 .bpp    = 16,
 117                 .pcr    = 0xCAD08B80,
 118         }, {
 119                 .mode = {
 120                         .name           = "DVI-VGA",
 121                         .refresh        = 60,
 122                         .xres           = 640,
 123                         .yres           = 480,
 124                         .pixclock       = 32000,
 125                         .hsync_len      = 7,
 126                         .left_margin    = 100,
 127                         .right_margin   = 100,
 128                         .vsync_len      = 7,
 129                         .upper_margin   = 7,
 130                         .lower_margin   = 100,
 131                 },
 132                 .pcr            = 0xFA208B80,
 133                 .bpp            = 16,
 134         }, {
 135                 .mode = {
 136                         .name           = "DVI-SVGA",
 137                         .refresh        = 60,
 138                         .xres           = 800,
 139                         .yres           = 600,
 140                         .pixclock       = 25000,
 141                         .hsync_len      = 7,
 142                         .left_margin    = 75,
 143                         .right_margin   = 75,
 144                         .vsync_len      = 7,
 145                         .upper_margin   = 7,
 146                         .lower_margin   = 75,
 147                 },
 148                 .pcr            = 0xFA208B80,
 149                 .bpp            = 16,
 150         },
 151 };
 152
 153 static const struct imx_fb_platform_data eukrea_mximxsd_fb_pdata __initconst = {
 154         .mode           = eukrea_mximxsd_modes,
 155         .num_modes      = ARRAY_SIZE(eukrea_mximxsd_modes),
 156         .pwmr           = 0x00A903FF,
 157         .lscr1          = 0x00120300,
 158         .dmacr          = 0x00040060,
 159 };
 160
 161 static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
 162                                    unsigned int power)
 163 {
 164         if (power)
 165                 gpio_direction_output(GPIO_LCDPWR, 1);
 166         else
 167                 gpio_direction_output(GPIO_LCDPWR, 0);
 168 }
 169
 170 static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
 171         .set_power              = eukrea_mbimxsd_lcd_power_set,
 172 };
 173
 174 static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
 175         .name                   = "platform-lcd",
 176         .dev.platform_data      = &eukrea_mbimxsd_lcd_power_data,
 177 };
 178
 179 static struct gpio_led eukrea_mbimxsd_leds[] = {
 180         {
 181                 .name                   = "led1",
 182                 .default_trigger        = "heartbeat",
 183                 .active_low             = 1,
 184                 .gpio                   = GPIO_LED1,
 185         },
 186 };
 187
 188 static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
 189         .leds           = eukrea_mbimxsd_leds,
 190         .num_leds       = ARRAY_SIZE(eukrea_mbimxsd_leds),
 191 };
 192
 193 static struct platform_device eukrea_mbimxsd_leds_gpio = {
 194         .name   = "leds-gpio",
 195         .id     = -1,
 196         .dev    = {
 197                 .platform_data  = &eukrea_mbimxsd_led_info,
 198         },
 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 struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
 212         .buttons        = eukrea_mbimxsd_gpio_buttons,
 213         .nbuttons       = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
 214 };
 215
 216 static struct platform_device eukrea_mbimxsd_button_device = {
 217         .name           = "gpio-keys",
 218         .id             = -1,
 219         .num_resources  = 0,
 220         .dev            = {
 221                 .platform_data  = &eukrea_mbimxsd_button_data,
 222         }
 223 };
 224
 225 static struct platform_device *platform_devices[] __initdata = {
 226         &eukrea_mbimxsd_leds_gpio,
 227         &eukrea_mbimxsd_button_device,
 228         &eukrea_mbimxsd_lcd_powerdev,
 229 };
 230
 231 static const struct imxuart_platform_data uart_pdata __initconst = {
 232         .flags = IMXUART_HAVE_RTSCTS,
 233 };
 234
 235 static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
 236         {
 237                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 238         },
 239 };
 240
 241 static const
 242 struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata __initconst = {
 243         .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
 244 };
 245
 246 static struct esdhc_platform_data sd1_pdata = {
 247         .cd_gpio = GPIO_SD1CD,
 248         .wp_gpio = -EINVAL,
 249 };
 250
 251 /*
 252  * system init for baseboard usage. Will be called by cpuimx25 init.
 253  *
 254  * Add platform devices present on this baseboard and init
 255  * them from CPU side as far as required to use them later on
 256  */
 257 void __init eukrea_mbimxsd25_baseboard_init(void)
 258 {
 259         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
 260                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
 261                 printk(KERN_ERR "error setting mbimxsd pads !\n");
 262
 263 #if defined(CONFIG_SND_SOC_EUKREA_TLV320)
 264         /* SSI unit master I2S codec connected to SSI_AUD5*/
 265         mxc_audmux_v2_configure_port(0,
 266                         MXC_AUDMUX_V2_PTCR_SYN |
 267                         MXC_AUDMUX_V2_PTCR_TFSDIR |
 268                         MXC_AUDMUX_V2_PTCR_TFSEL(4) |
 269                         MXC_AUDMUX_V2_PTCR_TCLKDIR |
 270                         MXC_AUDMUX_V2_PTCR_TCSEL(4),
 271                         MXC_AUDMUX_V2_PDCR_RXDSEL(4)
 272         );
 273         mxc_audmux_v2_configure_port(4,
 274                         MXC_AUDMUX_V2_PTCR_SYN,
 275                         MXC_AUDMUX_V2_PDCR_RXDSEL(0)
 276         );
 277 #endif
 278
 279         imx25_add_imx_uart1(&uart_pdata);
 280         imx25_add_imx_fb(&eukrea_mximxsd_fb_pdata);
 281         imx25_add_imx_ssi(0, &eukrea_mbimxsd_ssi_pdata);
 282
 283         imx25_add_flexcan1(NULL);
 284         imx25_add_sdhci_esdhc_imx(0, &sd1_pdata);
 285
 286         gpio_request(GPIO_LED1, "LED1");
 287         gpio_direction_output(GPIO_LED1, 1);
 288         gpio_free(GPIO_LED1);
 289
 290         gpio_request(GPIO_SWITCH1, "SWITCH1");
 291         gpio_direction_input(GPIO_SWITCH1);
 292         gpio_free(GPIO_SWITCH1);
 293
 294         gpio_request(GPIO_LCDPWR, "LCDPWR");
 295         gpio_direction_output(GPIO_LCDPWR, 1);
 296         gpio_free(GPIO_SWITCH1);
 297
 298         i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
 299                                 ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
 300
 301         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 302 }