mx31moboard: SPI and MC13783 voltage regulator support

Signed-off-by: Valentin Longchamp <valentin.longchamp@epfl.ch>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 125 insertions, 1 deletions

diff --git a/arch/arm/mach-mx3/mx31moboard.c b/arch/arm/mach-mx3/mx31moboard.c
index ff74fab34c85..f3ab51bcad49 100644
--- a/arch/arm/mach-mx3/mx31moboard.c
+++ b/arch/arm/mach-mx3/mx31moboard.c
@@ -26,6 +26,9 @@
 #include <linux/mtd/physmap.h>
 #include <linux/mtd/partitions.h>
 #include <linux/platform_device.h>
+#include <linux/regulator/machine.h>
+#include <linux/mfd/mc13783.h>
+#include <linux/spi/spi.h>
 #include <linux/types.h>
 
 #include <asm/mach-types.h>
@@ -39,7 +42,8 @@
 #include <mach/iomux-mx3.h>
 #include <mach/i2c.h>
 #include <mach/mmc.h>
-#include <mach/mx31.h>
+#include <mach/mx3_camera.h>
+#include <mach/spi.h>
 
 #include "devices.h"
 
@@ -79,6 +83,16 @@ static unsigned int moboard_pins[] = {
         /* SEL */
         MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
         MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
+        /* SPI1 */
+        MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
+        MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
+        MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
+        /* Atlas IRQ */
+        MX31_PIN_GPIO1_3__GPIO1_3,
+        /* SPI2 */
+        MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
+        MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
+        MX31_PIN_CSPI2_SS1__CSPI3_SS1,
 };
 
 static struct physmap_flash_data mx31moboard_flash_data = {
@@ -124,6 +138,108 @@ static struct imxi2c_platform_data moboard_i2c1_pdata = {
         .bitrate = 100000,
 };
 
+static int moboard_spi1_cs[] = {
+        MXC_SPI_CS(0),
+        MXC_SPI_CS(2),
+};
+
+static struct spi_imx_master moboard_spi1_master = {
+        .chipselect     = moboard_spi1_cs,
+        .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
+};
+
+static struct regulator_consumer_supply sdhc_consumers[] = {
+        {
+                .dev    = &mxcsdhc_device0.dev,
+                .supply = "sdhc0_vcc",
+        },
+        {
+                .dev    = &mxcsdhc_device1.dev,
+                .supply = "sdhc1_vcc",
+        },
+};
+
+static struct regulator_init_data sdhc_vreg_data = {
+        .constraints = {
+                .min_uV = 2700000,
+                .max_uV = 3000000,
+                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+                .valid_modes_mask = REGULATOR_MODE_NORMAL |
+                        REGULATOR_MODE_FAST,
+                .always_on = 0,
+                .boot_on = 1,
+        },
+        .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
+        .consumer_supplies = sdhc_consumers,
+};
+
+static struct regulator_consumer_supply cam_consumers[] = {
+        {
+                .dev    = &mx3_camera.dev,
+                .supply = "cam_vcc",
+        },
+};
+
+static struct regulator_init_data cam_vreg_data = {
+        .constraints = {
+                .min_uV = 2700000,
+                .max_uV = 3000000,
+                .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+                        REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
+                .valid_modes_mask = REGULATOR_MODE_NORMAL |
+                        REGULATOR_MODE_FAST,
+                .always_on = 0,
+                .boot_on = 1,
+        },
+        .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
+        .consumer_supplies = cam_consumers,
+};
+
+static struct mc13783_regulator_init_data moboard_regulators[] = {
+        {
+                .id = MC13783_REGU_VMMC1,
+                .init_data = &sdhc_vreg_data,
+        },
+        {
+                .id = MC13783_REGU_VCAM,
+                .init_data = &cam_vreg_data,
+        },
+};
+
+static struct mc13783_platform_data moboard_pmic = {
+        .regulators = moboard_regulators,
+        .num_regulators = ARRAY_SIZE(moboard_regulators),
+        .flags = MC13783_USE_REGULATOR | MC13783_USE_RTC,
+};
+
+static struct spi_board_info moboard_spi_board_info[] __initdata = {
+        {
+                .modalias = "mc13783",
+                .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+                .max_speed_hz = 300000,
+                .bus_num = 1,
+                .chip_select = 0,
+                .platform_data = &moboard_pmic,
+                .mode = SPI_CS_HIGH,
+        },
+        {
+                .modalias = "spidev",
+                .max_speed_hz = 300000,
+                .bus_num = 1,
+                .chip_select = 1, /* according spi1_cs[] ! */
+        },
+};
+
+static int moboard_spi2_cs[] = {
+        MXC_SPI_CS(1),
+};
+
+static struct spi_imx_master moboard_spi2_master = {
+        .chipselect     = moboard_spi2_cs,
+        .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
+};
+
 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
 
@@ -304,6 +420,14 @@ static void __init mxc_board_init(void)
         mxc_register_device(&mxc_i2c_device0, &moboard_i2c0_pdata);
         mxc_register_device(&mxc_i2c_device1, &moboard_i2c1_pdata);
 
+        mxc_register_device(&mxc_spi_device1, &moboard_spi1_master);
+        mxc_register_device(&mxc_spi_device2, &moboard_spi2_master);
+
+        gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
+        gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
+        spi_register_board_info(moboard_spi_board_info,
+                ARRAY_SIZE(moboard_spi_board_info));
+
         mxc_register_device(&mxcsdhc_device0, &sdhc1_pdata);
 
         usb_xcvr_reset();