support LED signals on Beagle

[linux-2.6-omap-h63xx.git] / arch / arm / mach-omap2 / board-omap3beagle.c

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 70562f25a4942f3e8bbdf5e86492a15ee52c096c..88d25b11c3b571d9ab04eee8f3957c986af4ba14 100644 (file)
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -24,6 +24,8 @@
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
 
+#include <linux/i2c/twl4030.h>
+
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand.h>
@@ -41,6 +43,7 @@
 #include <mach/common.h>
 #include <mach/gpmc.h>
 #include <mach/nand.h>
+#include <mach/mux.h>
 
 
 #define GPMC_CS0_BASE  0x60
@@ -108,9 +111,67 @@ static struct omap_uart_config omap3_beagle_uart_config __initdata = {
        .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 };
 
+static struct twl4030_usb_data beagle_usb_data = {
+       .usb_mode       = T2_USB_MODE_ULPI,
+};
+
+static struct gpio_led gpio_leds[];
+
+static int beagle_twl_gpio_setup(struct device *dev,
+               unsigned gpio, unsigned ngpio)
+{
+       /* gpio + 0 is "mmc0_cd" (input/IRQ) */
+
+       /* REVISIT: need ehci-omap hooks for external VBUS
+        * power switch and overcurrent detect
+        */
+
+       gpio_request(gpio + 1, "EHCI_nOC");
+       gpio_direction_input(gpio + 1);
+
+       /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
+       gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
+       gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
+
+       /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
+       gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
+
+       return 0;
+}
+
+static struct twl4030_gpio_platform_data beagle_gpio_data = {
+       .gpio_base      = OMAP_MAX_GPIO_LINES,
+       .irq_base       = TWL4030_GPIO_IRQ_BASE,
+       .irq_end        = TWL4030_GPIO_IRQ_END,
+       .use_leds       = true,
+       .pullups        = BIT(1),
+       .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
+                               | BIT(15) | BIT(16) | BIT(17),
+       .setup          = beagle_twl_gpio_setup,
+};
+
+static struct twl4030_platform_data beagle_twldata = {
+       .irq_base       = TWL4030_IRQ_BASE,
+       .irq_end        = TWL4030_IRQ_END,
+
+       /* platform_data for children goes here */
+       .usb            = &beagle_usb_data,
+       .gpio           = &beagle_gpio_data,
+};
+
+static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
+       {
+               I2C_BOARD_INFO("twl4030", 0x48),
+               .flags = I2C_CLIENT_WAKE,
+               .irq = INT_34XX_SYS_NIRQ,
+               .platform_data = &beagle_twldata,
+       },
+};
+
 static int __init omap3_beagle_i2c_init(void)
 {
-       omap_register_i2c_bus(1, 2600, NULL, 0);
+       omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
+                       ARRAY_SIZE(beagle_i2c_boardinfo));
 #ifdef CONFIG_I2C2_OMAP_BEAGLE
        omap_register_i2c_bus(2, 400, NULL, 0);
 #endif
@@ -145,6 +206,11 @@ static struct gpio_led gpio_leds[] = {
                .default_trigger        = "mmc0",
                .gpio                   = 149,
        },
+       {
+               .name                   = "beagleboard::pmu_stat",
+               .gpio                   = -EINVAL,      /* gets replaced */
+               .active_low             = true,
+       },
 };
 
 static struct gpio_led_platform_data gpio_led_info = {
@@ -234,11 +300,22 @@ static void __init omap3beagle_flash_init(void)
 static void __init omap3_beagle_init(void)
 {
        omap3_beagle_i2c_init();
-       platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices));
+       platform_add_devices(omap3_beagle_devices,
+                       ARRAY_SIZE(omap3_beagle_devices));
        omap_board_config = omap3_beagle_config;
        omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
        omap_serial_init();
+
+       omap_cfg_reg(AH8_34XX_GPIO29);
+       gpio_request(29, "mmc0_wp");
+       gpio_direction_input(29);
        hsmmc_init();
+
+       omap_cfg_reg(J25_34XX_GPIO170);
+       gpio_request(170, "DVI_nPD");
+       /* REVISIT leave DVI powered down until it's needed ... */
+       gpio_direction_output(170, true);
+
        usb_musb_init();
        usb_ehci_init();
        omap3beagle_flash_init();