1 files changed, 88 insertions, 10 deletions

diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index eaaf6ff28990..e7bff1e2cd2b 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -16,8 +16,10 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
-#include <linux/irq.h>
 #include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/fixed.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -183,6 +185,24 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
 
         /* led */
         MX28_PAD_AUART1_TX__GPIO_3_5 | MXS_PAD_CTRL,
+
+        /* I2C */
+        MX28_PAD_I2C0_SCL__I2C0_SCL |
+                (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+        MX28_PAD_I2C0_SDA__I2C0_SDA |
+                (MXS_PAD_8MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+
+        /* saif0 & saif1 */
+        MX28_PAD_SAIF0_MCLK__SAIF0_MCLK |
+                (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+        MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK |
+                (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+        MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK |
+                (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+        MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 |
+                (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
+        MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 |
+                (MXS_PAD_12MA | MXS_PAD_3V3 | MXS_PAD_PULLUP),
 };
 
 /* led */
@@ -352,6 +372,55 @@ static struct mxs_mmc_platform_data mx28evk_mmc_pdata[] __initdata = {
         },
 };
 
+static struct i2c_board_info mxs_i2c0_board_info[] __initdata = {
+        {
+                I2C_BOARD_INFO("sgtl5000", 0x0a),
+        },
+};
+
+#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
+static struct regulator_consumer_supply mx28evk_audio_consumer_supplies[] = {
+        REGULATOR_SUPPLY("VDDA", "0-000a"),
+        REGULATOR_SUPPLY("VDDIO", "0-000a"),
+};
+
+static struct regulator_init_data mx28evk_vdd_reg_init_data = {
+        .constraints    = {
+                .name   = "3V3",
+                .always_on = 1,
+        },
+        .consumer_supplies = mx28evk_audio_consumer_supplies,
+        .num_consumer_supplies = ARRAY_SIZE(mx28evk_audio_consumer_supplies),
+};
+
+static struct fixed_voltage_config mx28evk_vdd_pdata = {
+        .supply_name    = "board-3V3",
+        .microvolts     = 3300000,
+        .gpio           = -EINVAL,
+        .enabled_at_boot = 1,
+        .init_data      = &mx28evk_vdd_reg_init_data,
+};
+static struct platform_device mx28evk_voltage_regulator = {
+        .name           = "reg-fixed-voltage",
+        .id             = -1,
+        .num_resources  = 0,
+        .dev            = {
+                .platform_data  = &mx28evk_vdd_pdata,
+        },
+};
+static void __init mx28evk_add_regulators(void)
+{
+        platform_device_register(&mx28evk_voltage_regulator);
+}
+#else
+static void __init mx28evk_add_regulators(void) {}
+#endif
+
+static struct gpio mx28evk_lcd_gpios[] = {
+        { MX28EVK_LCD_ENABLE, GPIOF_OUT_INIT_HIGH, "lcd-enable" },
+        { MX28EVK_BL_ENABLE, GPIOF_OUT_INIT_HIGH, "bl-enable" },
+};
+
 static void __init mx28evk_init(void)
 {
         int ret;
@@ -378,19 +447,24 @@ static void __init mx28evk_init(void)
                 mx28_add_flexcan(1, &mx28evk_flexcan_pdata[1]);
         }
 
-        ret = gpio_request_one(MX28EVK_LCD_ENABLE, GPIOF_DIR_OUT, "lcd-enable");
+        ret = gpio_request_array(mx28evk_lcd_gpios,
+                                 ARRAY_SIZE(mx28evk_lcd_gpios));
         if (ret)
-                pr_warn("failed to request gpio lcd-enable: %d\n", ret);
+                pr_warn("failed to request gpio pins for lcd: %d\n", ret);
         else
-                gpio_set_value(MX28EVK_LCD_ENABLE, 1);
+                mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
 
-        ret = gpio_request_one(MX28EVK_BL_ENABLE, GPIOF_DIR_OUT, "bl-enable");
-        if (ret)
-                pr_warn("failed to request gpio bl-enable: %d\n", ret);
-        else
-                gpio_set_value(MX28EVK_BL_ENABLE, 1);
+        mx28_add_saif(0);
+        mx28_add_saif(1);
+
+        mx28_add_mxs_i2c(0);
+        i2c_register_board_info(0, mxs_i2c0_board_info,
+                                ARRAY_SIZE(mxs_i2c0_board_info));
 
-        mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
+        mx28evk_add_regulators();
+
+        mxs_add_platform_device("mxs-sgtl5000", 0, NULL, 0,
+                        NULL, 0);
 
         /* power on mmc slot by writing 0 to the gpio */
         ret = gpio_request_one(MX28EVK_MMC0_SLOT_POWER, GPIOF_OUT_INIT_LOW,
@@ -403,7 +477,11 @@ static void __init mx28evk_init(void)
                                "mmc1-slot-power");
         if (ret)
                 pr_warn("failed to request gpio mmc1-slot-power: %d\n", ret);
+        else
+                mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
+
         mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
+        mx28_add_rtc_stmp3xxx();
 
         gpio_led_register_device(0, &mx28evk_led_data);
 }