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Diffstat (limited to 'arch/arm/mach-mxs/mach-mx28evk.c')
-rw-r--r--arch/arm/mach-mxs/mach-mx28evk.c126
1 files changed, 112 insertions, 14 deletions
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index eacdc6b..064ec5a 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -15,8 +15,11 @@
#include <linux/delay.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
-#include <linux/irq.h>
+#include <linux/leds.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>
@@ -26,10 +29,10 @@
#include <mach/iomux-mx28.h>
#include "devices-mx28.h"
-#include "gpio.h"
#define MX28EVK_FLEXCAN_SWITCH MXS_GPIO_NR(2, 13)
#define MX28EVK_FEC_PHY_POWER MXS_GPIO_NR(2, 15)
+#define MX28EVK_GPIO_LED MXS_GPIO_NR(3, 5)
#define MX28EVK_BL_ENABLE MXS_GPIO_NR(3, 18)
#define MX28EVK_LCD_ENABLE MXS_GPIO_NR(3, 30)
#define MX28EVK_FEC_PHY_RESET MXS_GPIO_NR(4, 13)
@@ -179,6 +182,41 @@ static const iomux_cfg_t mx28evk_pads[] __initconst = {
/* slot power enable */
MX28_PAD_PWM4__GPIO_3_29 |
(MXS_PAD_4MA | MXS_PAD_3V3 | MXS_PAD_NOPULL),
+
+ /* 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 */
+static const struct gpio_led mx28evk_leds[] __initconst = {
+ {
+ .name = "GPIO-LED",
+ .default_trigger = "heartbeat",
+ .gpio = MX28EVK_GPIO_LED,
+ },
+};
+
+static const struct gpio_led_platform_data mx28evk_led_data __initconst = {
+ .leds = mx28evk_leds,
+ .num_leds = ARRAY_SIZE(mx28evk_leds),
};
/* fec */
@@ -334,6 +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;
@@ -360,32 +447,43 @@ 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));
+
+ mx28evk_add_regulators();
- mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
+ 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,
"mmc0-slot-power");
if (ret)
pr_warn("failed to request gpio mmc0-slot-power: %d\n", ret);
- mx28_add_mxs_mmc(0, &mx28evk_mmc_pdata[0]);
+ else
+ mx28_add_mxs_mmc(0, &mx28evk_mmc_pdata[0]);
ret = gpio_request_one(MX28EVK_MMC1_SLOT_POWER, GPIOF_OUT_INIT_LOW,
"mmc1-slot-power");
if (ret)
pr_warn("failed to request gpio mmc1-slot-power: %d\n", ret);
- mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
+ else
+ mx28_add_mxs_mmc(1, &mx28evk_mmc_pdata[1]);
+
+ mx28_add_rtc_stmp3xxx();
+
+ gpio_led_register_device(0, &mx28evk_led_data);
}
static void __init mx28evk_timer_init(void)
@@ -401,6 +499,6 @@ MACHINE_START(MX28EVK, "Freescale MX28 EVK")
/* Maintainer: Freescale Semiconductor, Inc. */
.map_io = mx28_map_io,
.init_irq = mx28_init_irq,
- .init_machine = mx28evk_init,
.timer = &mx28evk_timer,
+ .init_machine = mx28evk_init,
MACHINE_END