karo: tx28: request gpio for acitivity LED and disable LED on failure

[karo-tx-uboot.git] / board / karo / tx28 / tx28.c

diff --git a/board/karo/tx28/tx28.c b/board/karo/tx28/tx28.c
index b8086a02e15ea203549b9a6c011de0855334afa1..273463efcfea927eeef54fab3897d0b804a1024e 100644 (file)
--- a/board/karo/tx28/tx28.c
+++ b/board/karo/tx28/tx28.c
@@ -24,6 +24,7 @@
 #include <netdev.h>
 #include <mmc.h>
 #include <mxcfb.h>
+#include <video_fb.h>
 #include <linux/list.h>
 #include <linux/fb.h>
 #include <asm/io.h>
@@ -53,6 +54,17 @@ DECLARE_GLOBAL_DATA_PTR;
 
 #define STK5_CAN_XCVR_GPIO     MX28_PAD_LCD_D00__GPIO_1_0
 
+#define ENET_PAD_CTRL          (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP)
+#define GPIO_PAD_CTRL          (MXS_PAD_3V3 | MXS_PAD_4MA | MXS_PAD_PULLUP)
+#define I2C_PAD_CTRL           (MXS_PAD_3V3 | MXS_PAD_12MA | MXS_PAD_PULLUP)
+
+#ifndef CONFIG_CONS_INDEX
+struct serial_device *default_serial_console(void)
+{
+       return NULL;
+}
+#endif
+
 static const struct gpio tx28_gpios[] = {
        { TX28_USBH_VBUSEN_GPIO, GPIOFLAG_OUTPUT_INIT_LOW, "USBH VBUSEN", },
        { TX28_USBH_OC_GPIO, GPIOFLAG_INPUT, "USBH OC", },
@@ -62,26 +74,9 @@ static const struct gpio tx28_gpios[] = {
 };
 
 static const iomux_cfg_t tx28_pads[] = {
-       /* UART pads */
-#if CONFIG_CONS_INDEX == 0
-       MX28_PAD_AUART0_RX__DUART_CTS,
-       MX28_PAD_AUART0_TX__DUART_RTS,
-       MX28_PAD_AUART0_CTS__DUART_RX,
-       MX28_PAD_AUART0_RTS__DUART_TX,
-#elif CONFIG_CONS_INDEX == 1
-       MX28_PAD_AUART1_RX__AUART1_RX,
-       MX28_PAD_AUART1_TX__AUART1_TX,
-       MX28_PAD_AUART1_CTS__AUART1_CTS,
-       MX28_PAD_AUART1_RTS__AUART1_RTS,
-#elif CONFIG_CONS_INDEX == 2
-       MX28_PAD_AUART3_RX__AUART3_RX,
-       MX28_PAD_AUART3_TX__AUART3_TX,
-       MX28_PAD_AUART3_CTS__AUART3_CTS,
-       MX28_PAD_AUART3_RTS__AUART3_RTS,
-#endif
        /* I2C bus for internal DS1339, PCA9554 and on DIMM pins 40/41 */
-       MX28_PAD_I2C0_SCL__I2C0_SCL,
-       MX28_PAD_I2C0_SDA__I2C0_SDA,
+       MX28_PAD_I2C0_SCL__I2C0_SCL | I2C_PAD_CTRL,
+       MX28_PAD_I2C0_SDA__I2C0_SDA | I2C_PAD_CTRL,
 
        /* USBH VBUSEN, OC */
        MX28_PAD_SPDIF__GPIO_3_27,
@@ -167,10 +162,8 @@ rtc_err:
 
 int board_init(void)
 {
-       if (ctrlc()) {
+       if (ctrlc())
                printf("CTRL-C detected; safeboot enabled\n");
-               return 1;
-       }
 
        /* Address of boot parameters */
 #ifdef CONFIG_OF_LIBFDT
@@ -299,9 +292,9 @@ static inline void tx28_init_mac(void)
 #endif /* CONFIG_GET_FEC_MAC_ADDR_FROM_IIM */
 
 static const iomux_cfg_t tx28_fec_pads[] = {
-       MX28_PAD_ENET0_RX_EN__ENET0_RX_EN,
-       MX28_PAD_ENET0_RXD0__ENET0_RXD0,
-       MX28_PAD_ENET0_RXD1__ENET0_RXD1,
+       MX28_PAD_ENET0_RX_EN__ENET0_RX_EN | ENET_PAD_CTRL,
+       MX28_PAD_ENET0_RXD0__ENET0_RXD0 | ENET_PAD_CTRL,
+       MX28_PAD_ENET0_RXD1__ENET0_RXD1 | ENET_PAD_CTRL,
 };
 
 int board_eth_init(bd_t *bis)
@@ -369,33 +362,43 @@ enum {
        LED_STATE_INIT = -1,
        LED_STATE_OFF,
        LED_STATE_ON,
+       LED_STATE_DISABLED,
 };
 
+static int led_state = LED_STATE_DISABLED;
+
 void show_activity(int arg)
 {
-       static int led_state = LED_STATE_INIT;
        static ulong last;
+       int ret;
 
-       if (led_state == LED_STATE_INIT) {
+       if (led_state == LED_STATE_DISABLED) {
+               return;
+       } else if (led_state == LED_STATE_INIT) {
                last = get_timer(0);
-               gpio_set_value(TX28_LED_GPIO, 1);
-               led_state = LED_STATE_ON;
+               ret = gpio_request_one(TX28_LED_GPIO,
+                               GPIOFLAG_OUTPUT_INIT_HIGH, "Activity");
+               if (ret == 0)
+                       led_state = LED_STATE_ON;
+               else
+                       led_state = LED_STATE_DISABLED;
        } else {
                if (get_timer(last) > CONFIG_SYS_HZ) {
                        last = get_timer(0);
                        if (led_state == LED_STATE_ON) {
                                gpio_set_value(TX28_LED_GPIO, 0);
+                               led_state = LED_STATE_OFF;
                        } else {
                                gpio_set_value(TX28_LED_GPIO, 1);
+                               led_state = LED_STATE_ON;
                        }
-                       led_state = 1 - led_state;
                }
        }
 }
 
 static const iomux_cfg_t stk5_pads[] = {
        /* SW controlled LED on STK5 baseboard */
-       MX28_PAD_ENET0_RXD3__GPIO_4_10,
+       MX28_PAD_ENET0_RXD3__GPIO_4_10 | GPIO_PAD_CTRL,
 };
 
 static const struct gpio stk5_gpios[] = {
@@ -625,8 +628,6 @@ static const struct gpio stk5_lcd_gpios[] = {
        { TX28_LCD_BACKLIGHT_GPIO, GPIOFLAG_OUTPUT_INIT_HIGH, "LCD BACKLIGHT", },
 };
 
-extern void video_hw_init(void *lcdbase);
-
 void lcd_ctrl_init(void *lcdbase)
 {
        int color_depth = 24;
@@ -810,7 +811,7 @@ void lcd_ctrl_init(void *lcdbase)
                setenv("videomode", vmode);
 
                debug("Initializing LCD controller\n");
-               video_hw_init(lcdbase);
+               video_hw_init();
                setenv("videomode", NULL);
        } else {
                debug("Skipping initialization of LCD controller\n");
@@ -828,6 +829,7 @@ static void stk5_board_init(void)
 
 static void stk5v3_board_init(void)
 {
+       led_state = LED_STATE_INIT;
        stk5_board_init();
 }
 
@@ -879,7 +881,8 @@ int board_late_init(void)
        } else {
                printf("WARNING: Unsupported baseboard: '%s'\n",
                        baseboard);
-               ret = -EINVAL;
+               if (!had_ctrlc())
+                       ret = -EINVAL;
        }
 
 exit: