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authorMark Brown <broonie@opensource.wolfsonmicro.com>2009-01-15 16:14:30 +0000
committerSascha Hauer <s.hauer@pengutronix.de>2009-03-13 10:34:05 +0100
commitfe7316bff119a11e68f895ecf9a5a713ed30004c (patch)
treee7e25be8d53dc6d9b87ad23145e24c4cfd989a94 /arch/arm/mach-mx3/mx31ads.c
parentbab389c8750d7f41f499517b308600f13bd2788d (diff)
downloadlinux-linaro-stable-fe7316bff119a11e68f895ecf9a5a713ed30004c.tar.gz
mx31ads: Initial support for Wolfson Microelectronics 1133-EV1 module
The i.MX31ADS supports pluggable PMU modules, including the WM835x based Wolfson Microelectronics 1133-EV1. These boards provide power, audio, RTC and watchdiog services to the system. This patch adds initial support for those boards in I2C mode. Currently support is limited by the available support for the features of the i.MX31 in the mainline kernel. Some further work will be needed once other PMU modules are supported and once there is SPI support. Many of the regulator constraints will be sharable with other PMU boards. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx3/mx31ads.c')
-rw-r--r--arch/arm/mach-mx3/mx31ads.c294
1 files changed, 294 insertions, 0 deletions
diff --git a/arch/arm/mach-mx3/mx31ads.c b/arch/arm/mach-mx3/mx31ads.c
index 7941db3caf6f..5c76ac5ba0fe 100644
--- a/arch/arm/mach-mx3/mx31ads.c
+++ b/arch/arm/mach-mx3/mx31ads.c
@@ -22,6 +22,8 @@
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/serial_8250.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
#include <linux/irq.h>
#include <mach/hardware.h>
@@ -35,6 +37,12 @@
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+#include <linux/mfd/wm8350/audio.h>
+#include <linux/mfd/wm8350/core.h>
+#include <linux/mfd/wm8350/pmic.h>
+#endif
+
#include "devices.h"
/*!
@@ -194,6 +202,291 @@ static void __init mx31ads_init_expio(void)
set_irq_chained_handler(EXPIO_PARENT_INT, mx31ads_expio_irq_handler);
}
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+/* This section defines setup for the Wolfson Microelectronics
+ * 1133-EV1 PMU/audio board. When other PMU boards are supported the
+ * regulator definitions may be shared with them, but for now they can
+ * only be used with this board so would generate warnings about
+ * unused statics and some of the configuration is specific to this
+ * module.
+ */
+
+/* CPU */
+static struct regulator_consumer_supply sw1a_consumers[] = {
+ {
+ .supply = "cpu_vcc",
+ }
+};
+
+static struct regulator_init_data sw1a_data = {
+ .constraints = {
+ .name = "SW1A",
+ .min_uV = 1275000,
+ .max_uV = 1600000,
+ .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
+ REGULATOR_CHANGE_MODE,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL |
+ REGULATOR_MODE_FAST,
+ .state_mem = {
+ .uV = 1400000,
+ .mode = REGULATOR_MODE_NORMAL,
+ .enabled = 1,
+ },
+ .initial_state = PM_SUSPEND_MEM,
+ .always_on = 1,
+ .boot_on = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(sw1a_consumers),
+ .consumer_supplies = sw1a_consumers,
+};
+
+/* System IO - High */
+static struct regulator_init_data viohi_data = {
+ .constraints = {
+ .name = "VIOHO",
+ .min_uV = 2800000,
+ .max_uV = 2800000,
+ .state_mem = {
+ .uV = 2800000,
+ .mode = REGULATOR_MODE_NORMAL,
+ .enabled = 1,
+ },
+ .initial_state = PM_SUSPEND_MEM,
+ .always_on = 1,
+ .boot_on = 1,
+ },
+};
+
+/* System IO - Low */
+static struct regulator_init_data violo_data = {
+ .constraints = {
+ .name = "VIOLO",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .state_mem = {
+ .uV = 1800000,
+ .mode = REGULATOR_MODE_NORMAL,
+ .enabled = 1,
+ },
+ .initial_state = PM_SUSPEND_MEM,
+ .always_on = 1,
+ .boot_on = 1,
+ },
+};
+
+/* DDR RAM */
+static struct regulator_init_data sw2a_data = {
+ .constraints = {
+ .name = "SW2A",
+ .min_uV = 1800000,
+ .max_uV = 1800000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .state_mem = {
+ .uV = 1800000,
+ .mode = REGULATOR_MODE_NORMAL,
+ .enabled = 1,
+ },
+ .state_disk = {
+ .mode = REGULATOR_MODE_NORMAL,
+ .enabled = 0,
+ },
+ .always_on = 1,
+ .boot_on = 1,
+ .initial_state = PM_SUSPEND_MEM,
+ },
+};
+
+static struct regulator_init_data ldo1_data = {
+ .constraints = {
+ .name = "VCAM/VMMC1/VMMC2",
+ .min_uV = 2800000,
+ .max_uV = 2800000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+};
+
+static struct regulator_consumer_supply ldo2_consumers[] = {
+ {
+ .supply = "AVDD",
+ },
+ {
+ .supply = "HPVDD",
+ },
+};
+
+/* CODEC and SIM */
+static struct regulator_init_data ldo2_data = {
+ .constraints = {
+ .name = "VESIM/VSIM/AVDD",
+ .min_uV = 3300000,
+ .max_uV = 3300000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(ldo2_consumers),
+ .consumer_supplies = ldo2_consumers,
+};
+
+/* General */
+static struct regulator_init_data vdig_data = {
+ .constraints = {
+ .name = "VDIG",
+ .min_uV = 1500000,
+ .max_uV = 1500000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ .always_on = 1,
+ .boot_on = 1,
+ },
+};
+
+/* Tranceivers */
+static struct regulator_init_data ldo4_data = {
+ .constraints = {
+ .name = "VRF1/CVDD_2.775",
+ .min_uV = 2500000,
+ .max_uV = 2500000,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL,
+ .apply_uV = 1,
+ .always_on = 1,
+ .boot_on = 1,
+ },
+};
+
+static struct wm8350_led_platform_data wm8350_led_data = {
+ .name = "wm8350:white",
+ .default_trigger = "heartbeat",
+ .max_uA = 27899,
+};
+
+static struct wm8350_audio_platform_data imx32ads_wm8350_setup = {
+ .vmid_discharge_msecs = 1000,
+ .drain_msecs = 30,
+ .cap_discharge_msecs = 700,
+ .vmid_charge_msecs = 700,
+ .vmid_s_curve = WM8350_S_CURVE_SLOW,
+ .dis_out4 = WM8350_DISCHARGE_SLOW,
+ .dis_out3 = WM8350_DISCHARGE_SLOW,
+ .dis_out2 = WM8350_DISCHARGE_SLOW,
+ .dis_out1 = WM8350_DISCHARGE_SLOW,
+ .vroi_out4 = WM8350_TIE_OFF_500R,
+ .vroi_out3 = WM8350_TIE_OFF_500R,
+ .vroi_out2 = WM8350_TIE_OFF_500R,
+ .vroi_out1 = WM8350_TIE_OFF_500R,
+ .vroi_enable = 0,
+ .codec_current_on = WM8350_CODEC_ISEL_1_0,
+ .codec_current_standby = WM8350_CODEC_ISEL_0_5,
+ .codec_current_charge = WM8350_CODEC_ISEL_1_5,
+};
+
+static int mx31_wm8350_init(struct wm8350 *wm8350)
+{
+ int i;
+
+ wm8350_gpio_config(wm8350, 0, WM8350_GPIO_DIR_IN,
+ WM8350_GPIO0_PWR_ON_IN, WM8350_GPIO_ACTIVE_LOW,
+ WM8350_GPIO_PULL_UP, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_ON);
+
+ wm8350_gpio_config(wm8350, 3, WM8350_GPIO_DIR_IN,
+ WM8350_GPIO3_PWR_OFF_IN, WM8350_GPIO_ACTIVE_HIGH,
+ WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_ON);
+
+ wm8350_gpio_config(wm8350, 4, WM8350_GPIO_DIR_IN,
+ WM8350_GPIO4_MR_IN, WM8350_GPIO_ACTIVE_HIGH,
+ WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_OFF);
+
+ wm8350_gpio_config(wm8350, 7, WM8350_GPIO_DIR_IN,
+ WM8350_GPIO7_HIBERNATE_IN, WM8350_GPIO_ACTIVE_HIGH,
+ WM8350_GPIO_PULL_DOWN, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_OFF);
+
+ wm8350_gpio_config(wm8350, 6, WM8350_GPIO_DIR_OUT,
+ WM8350_GPIO6_SDOUT_OUT, WM8350_GPIO_ACTIVE_HIGH,
+ WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_OFF);
+
+ wm8350_gpio_config(wm8350, 8, WM8350_GPIO_DIR_OUT,
+ WM8350_GPIO8_VCC_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
+ WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_OFF);
+
+ wm8350_gpio_config(wm8350, 9, WM8350_GPIO_DIR_OUT,
+ WM8350_GPIO9_BATT_FAULT_OUT, WM8350_GPIO_ACTIVE_LOW,
+ WM8350_GPIO_PULL_NONE, WM8350_GPIO_INVERT_OFF,
+ WM8350_GPIO_DEBOUNCE_OFF);
+
+ /* Fix up for our own supplies. */
+ for (i = 0; i < ARRAY_SIZE(ldo2_consumers); i++)
+ ldo2_consumers[i].dev = wm8350->dev;
+
+ wm8350_register_regulator(wm8350, WM8350_DCDC_1, &sw1a_data);
+ wm8350_register_regulator(wm8350, WM8350_DCDC_3, &viohi_data);
+ wm8350_register_regulator(wm8350, WM8350_DCDC_4, &violo_data);
+ wm8350_register_regulator(wm8350, WM8350_DCDC_6, &sw2a_data);
+ wm8350_register_regulator(wm8350, WM8350_LDO_1, &ldo1_data);
+ wm8350_register_regulator(wm8350, WM8350_LDO_2, &ldo2_data);
+ wm8350_register_regulator(wm8350, WM8350_LDO_3, &vdig_data);
+ wm8350_register_regulator(wm8350, WM8350_LDO_4, &ldo4_data);
+
+ /* LEDs */
+ wm8350_dcdc_set_slot(wm8350, WM8350_DCDC_5, 1, 1,
+ WM8350_DC5_ERRACT_SHUTDOWN_CONV);
+ wm8350_isink_set_flash(wm8350, WM8350_ISINK_A,
+ WM8350_ISINK_FLASH_DISABLE,
+ WM8350_ISINK_FLASH_TRIG_BIT,
+ WM8350_ISINK_FLASH_DUR_32MS,
+ WM8350_ISINK_FLASH_ON_INSTANT,
+ WM8350_ISINK_FLASH_OFF_INSTANT,
+ WM8350_ISINK_FLASH_MODE_EN);
+ wm8350_dcdc25_set_mode(wm8350, WM8350_DCDC_5,
+ WM8350_ISINK_MODE_BOOST,
+ WM8350_ISINK_ILIM_NORMAL,
+ WM8350_DC5_RMP_20V,
+ WM8350_DC5_FBSRC_ISINKA);
+ wm8350_register_led(wm8350, 0, WM8350_DCDC_5, WM8350_ISINK_A,
+ &wm8350_led_data);
+
+ wm8350->codec.platform_data = &imx32ads_wm8350_setup;
+
+ return 0;
+}
+
+static struct wm8350_platform_data __initdata mx31_wm8350_pdata = {
+ .init = mx31_wm8350_init,
+};
+#endif
+
+#if defined(CONFIG_I2C_IMX) || defined(CONFIG_I2C_IMX_MODULE)
+static struct i2c_board_info __initdata mx31ads_i2c1_devices[] = {
+#ifdef CONFIG_MACH_MX31ADS_WM1133_EV1
+ {
+ I2C_BOARD_INFO("wm8350", 0x1a),
+ .platform_data = &mx31_wm8350_pdata,
+ .irq = IOMUX_TO_IRQ(MX31_PIN_GPIO1_3),
+ },
+#endif
+};
+
+static void mxc_init_i2c(void)
+{
+ i2c_register_board_info(1, mx31ads_i2c1_devices,
+ ARRAY_SIZE(mx31ads_i2c1_devices));
+
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MOSI, IOMUX_CONFIG_ALT1));
+ mxc_iomux_mode(IOMUX_MODE(MX31_PIN_CSPI2_MISO, IOMUX_CONFIG_ALT1));
+
+ mxc_register_device(&mxc_i2c_device1, NULL);
+}
+#else
+static void mxc_init_i2c(void)
+{
+}
+#endif
+
/*!
* This structure defines static mappings for the i.MX31ADS board.
*/
@@ -243,6 +536,7 @@ static void __init mxc_board_init(void)
{
mxc_init_extuart();
mxc_init_imx_uart();
+ mxc_init_i2c();
}
static void __init mx31ads_timer_init(void)