cm_t335: add support for status LED

Add support for status LED. Use the STATUS_LED APIs for indicating a
boot progress.

Signed-off-by: Ilya Ledvich <ilya@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>

board/compulab/cm_t335/cm_t335.c

@@ -31,6 +31,9 @@ int board_init(void)
 
 	gpmc_init();
 
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+	status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
+#endif
 	return 0;
 }
 

board/compulab/cm_t335/mux.c

@@ -94,6 +94,11 @@ static struct module_pin_mux eth_phy_rst_pin_mux[] = {
 	{-1},
 };
 
+static struct module_pin_mux status_led_pin_mux[] = {
+	{OFFSET(gpmc_csn3), (MODE(7) | PULLUDEN)},	/* GPIO2_0 */
+	{-1},
+};
+
 void set_uart_mux_conf(void)
 {
 	configure_module_pin_mux(uart0_pin_mux);
@@ -108,4 +113,5 @@ void set_mux_conf_regs(void)
 	configure_module_pin_mux(eth_phy_rst_pin_mux);
 	configure_module_pin_mux(mmc0_pin_mux);
 	configure_module_pin_mux(nand_pin_mux);
+	configure_module_pin_mux(status_led_pin_mux);
 }

include/configs/cm_t335.h

@@ -156,5 +156,15 @@
 /* GPIO pin + bank to pin ID mapping */
 #define GPIO_PIN(_bank, _pin)		((_bank << 5) + _pin)
 
+/* Status LED */
+#define CONFIG_STATUS_LED
+#define CONFIG_GPIO_LED
+#define CONFIG_BOARD_SPECIFIC_LED
+#define STATUS_LED_BIT			GPIO_PIN(2, 0)
+/* Status LED polarity is inversed, so init it in the "off" state */
+#define STATUS_LED_STATE		STATUS_LED_OFF
+#define STATUS_LED_PERIOD		(CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BOOT			0
+
 #endif	/* __CONFIG_CM_T335_H */