release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-mx25/eukrea_mbimxsd-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/imxfb.h>
  37 #include <mach/ssi.h>
  38 #include <mach/audmux.h>
  39
  40 #include "devices-imx25.h"
  41 #include "devices.h"
  42
  43 static struct pad_desc eukrea_mbimxsd_pads[] = {
  44         /* LCD */
  45         MX25_PAD_LD0__LD0,
  46         MX25_PAD_LD1__LD1,
  47         MX25_PAD_LD2__LD2,
  48         MX25_PAD_LD3__LD3,
  49         MX25_PAD_LD4__LD4,
  50         MX25_PAD_LD5__LD5,
  51         MX25_PAD_LD6__LD6,
  52         MX25_PAD_LD7__LD7,
  53         MX25_PAD_LD8__LD8,
  54         MX25_PAD_LD9__LD9,
  55         MX25_PAD_LD10__LD10,
  56         MX25_PAD_LD11__LD11,
  57         MX25_PAD_LD12__LD12,
  58         MX25_PAD_LD13__LD13,
  59         MX25_PAD_LD14__LD14,
  60         MX25_PAD_LD15__LD15,
  61         MX25_PAD_GPIO_E__LD16,
  62         MX25_PAD_GPIO_F__LD17,
  63         MX25_PAD_HSYNC__HSYNC,
  64         MX25_PAD_VSYNC__VSYNC,
  65         MX25_PAD_LSCLK__LSCLK,
  66         MX25_PAD_OE_ACD__OE_ACD,
  67         MX25_PAD_CONTRAST__CONTRAST,
  68         /* LCD_PWR */
  69         MX25_PAD_PWM__GPIO_1_26,
  70         /* LED */
  71         MX25_PAD_POWER_FAIL__GPIO_3_19,
  72         /* SWITCH */
  73         MX25_PAD_VSTBY_ACK__GPIO_3_18,
  74         /* UART2 */
  75         MX25_PAD_UART2_RTS__UART2_RTS,
  76         MX25_PAD_UART2_CTS__UART2_CTS,
  77         MX25_PAD_UART2_TXD__UART2_TXD,
  78         MX25_PAD_UART2_RXD__UART2_RXD,
  79         /* SD1 */
  80         MX25_PAD_SD1_CMD__SD1_CMD,
  81         MX25_PAD_SD1_CLK__SD1_CLK,
  82         MX25_PAD_SD1_DATA0__SD1_DATA0,
  83         MX25_PAD_SD1_DATA1__SD1_DATA1,
  84         MX25_PAD_SD1_DATA2__SD1_DATA2,
  85         MX25_PAD_SD1_DATA3__SD1_DATA3,
  86         /* SD1 CD */
  87         MX25_PAD_DE_B__GPIO_2_20,
  88         /* I2S */
  89         MX25_PAD_KPP_COL3__AUD5_TXFS,
  90         MX25_PAD_KPP_COL2__AUD5_TXC,
  91         MX25_PAD_KPP_COL1__AUD5_RXD,
  92         MX25_PAD_KPP_COL0__AUD5_TXD,
  93 };
  94
  95 #define GPIO_LED1       83
  96 #define GPIO_SWITCH1    82
  97 #define GPIO_SD1CD      52
  98 #define GPIO_LCDPWR     26
  99
 100 static struct imx_fb_videomode eukrea_mximxsd_modes[] = {
 101         {
 102                 .mode   = {
 103                         .name           = "CMO-QVGA",
 104                         .refresh        = 60,
 105                         .xres           = 320,
 106                         .yres           = 240,
 107                         .pixclock       = KHZ2PICOS(6500),
 108                         .left_margin    = 30,
 109                         .right_margin   = 38,
 110                         .upper_margin   = 20,
 111                         .lower_margin   = 3,
 112                         .hsync_len      = 15,
 113                         .vsync_len      = 4,
 114                 },
 115                 .bpp    = 16,
 116                 .pcr    = 0xCAD08B80,
 117         },
 118 };
 119
 120 static struct imx_fb_platform_data eukrea_mximxsd_fb_pdata = {
 121         .mode           = eukrea_mximxsd_modes,
 122         .num_modes      = ARRAY_SIZE(eukrea_mximxsd_modes),
 123         .pwmr           = 0x00A903FF,
 124         .lscr1          = 0x00120300,
 125         .dmacr          = 0x00040060,
 126 };
 127
 128 static void eukrea_mbimxsd_lcd_power_set(struct plat_lcd_data *pd,
 129                                    unsigned int power)
 130 {
 131         if (power)
 132                 gpio_direction_output(GPIO_LCDPWR, 1);
 133         else
 134                 gpio_direction_output(GPIO_LCDPWR, 0);
 135 }
 136
 137 static struct plat_lcd_data eukrea_mbimxsd_lcd_power_data = {
 138         .set_power              = eukrea_mbimxsd_lcd_power_set,
 139 };
 140
 141 static struct platform_device eukrea_mbimxsd_lcd_powerdev = {
 142         .name                   = "platform-lcd",
 143         .dev.platform_data      = &eukrea_mbimxsd_lcd_power_data,
 144 };
 145
 146 static struct gpio_led eukrea_mbimxsd_leds[] = {
 147         {
 148                 .name                   = "led1",
 149                 .default_trigger        = "heartbeat",
 150                 .active_low             = 1,
 151                 .gpio                   = GPIO_LED1,
 152         },
 153 };
 154
 155 static struct gpio_led_platform_data eukrea_mbimxsd_led_info = {
 156         .leds           = eukrea_mbimxsd_leds,
 157         .num_leds       = ARRAY_SIZE(eukrea_mbimxsd_leds),
 158 };
 159
 160 static struct platform_device eukrea_mbimxsd_leds_gpio = {
 161         .name   = "leds-gpio",
 162         .id     = -1,
 163         .dev    = {
 164                 .platform_data  = &eukrea_mbimxsd_led_info,
 165         },
 166 };
 167
 168 static struct gpio_keys_button eukrea_mbimxsd_gpio_buttons[] = {
 169         {
 170                 .gpio           = GPIO_SWITCH1,
 171                 .code           = BTN_0,
 172                 .desc           = "BP1",
 173                 .active_low     = 1,
 174                 .wakeup         = 1,
 175         },
 176 };
 177
 178 static struct gpio_keys_platform_data eukrea_mbimxsd_button_data = {
 179         .buttons        = eukrea_mbimxsd_gpio_buttons,
 180         .nbuttons       = ARRAY_SIZE(eukrea_mbimxsd_gpio_buttons),
 181 };
 182
 183 static struct platform_device eukrea_mbimxsd_button_device = {
 184         .name           = "gpio-keys",
 185         .id             = -1,
 186         .num_resources  = 0,
 187         .dev            = {
 188                 .platform_data  = &eukrea_mbimxsd_button_data,
 189         }
 190 };
 191
 192 static struct platform_device *platform_devices[] __initdata = {
 193         &eukrea_mbimxsd_leds_gpio,
 194         &eukrea_mbimxsd_button_device,
 195         &eukrea_mbimxsd_lcd_powerdev,
 196 };
 197
 198 static const struct imxuart_platform_data uart_pdata __initconst = {
 199         .flags = IMXUART_HAVE_RTSCTS,
 200 };
 201
 202 static struct i2c_board_info eukrea_mbimxsd_i2c_devices[] = {
 203         {
 204                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 205         },
 206 };
 207
 208 struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = {
 209         .flags = IMX_SSI_SYN | IMX_SSI_NET | IMX_SSI_USE_I2S_SLAVE,
 210 };
 211
 212 /*
 213  * system init for baseboard usage. Will be called by cpuimx25 init.
 214  *
 215  * Add platform devices present on this baseboard and init
 216  * them from CPU side as far as required to use them later on
 217  */
 218 void __init eukrea_mbimxsd25_baseboard_init(void)
 219 {
 220         if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads,
 221                         ARRAY_SIZE(eukrea_mbimxsd_pads)))
 222                 printk(KERN_ERR "error setting mbimxsd pads !\n");
 223
 224 #if defined(CONFIG_SND_SOC_EUKREA_TLV320)
 225         /* SSI unit master I2S codec connected to SSI_AUD5*/
 226         mxc_audmux_v2_configure_port(0,
 227                         MXC_AUDMUX_V2_PTCR_SYN |
 228                         MXC_AUDMUX_V2_PTCR_TFSDIR |
 229                         MXC_AUDMUX_V2_PTCR_TFSEL(4) |
 230                         MXC_AUDMUX_V2_PTCR_TCLKDIR |
 231                         MXC_AUDMUX_V2_PTCR_TCSEL(4),
 232                         MXC_AUDMUX_V2_PDCR_RXDSEL(4)
 233         );
 234         mxc_audmux_v2_configure_port(4,
 235                         MXC_AUDMUX_V2_PTCR_SYN,
 236                         MXC_AUDMUX_V2_PDCR_RXDSEL(0)
 237         );
 238 #endif
 239
 240         imx25_add_imx_uart1(&uart_pdata);
 241         mxc_register_device(&mx25_fb_device, &eukrea_mximxsd_fb_pdata);
 242         mxc_register_device(&imx_ssi_device0, &eukrea_mbimxsd_ssi_pdata);
 243
 244         gpio_request(GPIO_LED1, "LED1");
 245         gpio_direction_output(GPIO_LED1, 1);
 246         gpio_free(GPIO_LED1);
 247
 248         gpio_request(GPIO_SWITCH1, "SWITCH1");
 249         gpio_direction_input(GPIO_SWITCH1);
 250         gpio_free(GPIO_SWITCH1);
 251
 252         gpio_request(GPIO_LCDPWR, "LCDPWR");
 253         gpio_direction_output(GPIO_LCDPWR, 1);
 254         gpio_free(GPIO_SWITCH1);
 255
 256         i2c_register_board_info(0, eukrea_mbimxsd_i2c_devices,
 257                                 ARRAY_SIZE(eukrea_mbimxsd_i2c_devices));
 258
 259         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
 260 }