tricorder: add led support

Signed-off-by: Andreas Bießmann <andreas.biessmann@corscience.de>

board/corscience/tricorder/Makefile

@@ -12,7 +12,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= tricorder.o tricorder-eeprom.o
+COBJS	:= tricorder.o tricorder-eeprom.o led.o
 
 SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))

board/corscience/tricorder/led.c

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013 Corscience GmbH & Co.KG
+ * Andreas Bießmann <andreas.biessmann@corscience.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#include <common.h>
+#include <status_led.h>
+#include <twl4030.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/gpio.h>
+
+#define TRICORDER_STATUS_LED_YELLOW 42
+#define TRICORDER_STATUS_LED_GREEN  43
+
+void __led_init(led_id_t mask, int state)
+{
+	__led_set(mask, state);
+}
+
+void __led_toggle(led_id_t mask)
+{
+	int toggle_gpio = 0;
+#ifdef STATUS_LED_BIT
+	if (!toggle_gpio && STATUS_LED_BIT & mask)
+		toggle_gpio = TRICORDER_STATUS_LED_GREEN;
+#endif
+#ifdef STATUS_LED_BIT1
+	if (!toggle_gpio && STATUS_LED_BIT1 & mask)
+		toggle_gpio = TRICORDER_STATUS_LED_YELLOW;
+#endif
+#ifdef STATUS_LED_BIT2
+	if (!toggle_gpio && STATUS_LED_BIT2 & mask) {
+		uint8_t val;
+		twl4030_i2c_read_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
+				    &val);
+		val ^= (TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDAPWM);
+		twl4030_i2c_write_u8(TWL4030_CHIP_LED, TWL4030_LED_LEDEN,
+				     val);
+	}
+#endif
+	if (toggle_gpio) {
+		int state;
+		gpio_request(toggle_gpio, "");
+		state = gpio_get_value(toggle_gpio);
+		gpio_set_value(toggle_gpio, !state);
+	}
+}
+
+void __led_set(led_id_t mask, int state)
+{
+#ifdef STATUS_LED_BIT
+	if (STATUS_LED_BIT & mask) {
+		gpio_request(TRICORDER_STATUS_LED_GREEN, "");
+		gpio_direction_output(TRICORDER_STATUS_LED_GREEN, 0);
+		gpio_set_value(TRICORDER_STATUS_LED_GREEN, state);
+	}
+#endif
+#ifdef STATUS_LED_BIT1
+	if (STATUS_LED_BIT1 & mask) {
+		gpio_request(TRICORDER_STATUS_LED_YELLOW, "");
+		gpio_direction_output(TRICORDER_STATUS_LED_YELLOW, 0);
+		gpio_set_value(TRICORDER_STATUS_LED_YELLOW, state);
+	}
+#endif
+#ifdef STATUS_LED_BIT2
+	if (STATUS_LED_BIT2 & mask) {
+		if (STATUS_LED_OFF == state)
+			twl4030_i2c_write_u8(TWL4030_CHIP_LED,
+					     TWL4030_LED_LEDEN, 0);
+		else
+			twl4030_i2c_write_u8(TWL4030_CHIP_LED,
+					     TWL4030_LED_LEDEN,
+					     (TWL4030_LED_LEDEN_LEDAON |
+					      TWL4030_LED_LEDEN_LEDAPWM));
+	}
+#endif
+}

board/corscience/tricorder/tricorder.c

@@ -118,9 +118,9 @@ int misc_init_r(void)
 	print_hwversion(&eeprom);
 
 	twl4030_power_init();
-#ifdef CONFIG_TWL4030_LED
-	twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
-#endif
+	status_led_set(0, STATUS_LED_ON);
+	status_led_set(1, STATUS_LED_ON);
+	status_led_set(2, STATUS_LED_ON);
 
 	dieid_num_r();
 

board/corscience/tricorder/tricorder.h

@@ -75,8 +75,8 @@ const omap3_sysinfo sysinfo = {
 	MUX_VAL(CP(GPMC_A6),		(IDIS | PTD | DIS | M0)) /*GPMC_A6*/\
 	MUX_VAL(CP(GPMC_A7),		(IDIS | PTD | DIS | M0)) /*GPMC_A7*/\
 	MUX_VAL(CP(GPMC_A8),		(IDIS | PTD | DIS | M0)) /*GPMC_A8*/\
-	MUX_VAL(CP(GPMC_A9),		(IDIS | PTD | DIS | M0)) /*GPMC_A9*/\
-	MUX_VAL(CP(GPMC_A10),		(IDIS | PTD | DIS | M0)) /*GPMC_A10*/\
+	MUX_VAL(CP(GPMC_A9),		(IDIS | PTU | EN  | M4)) /*GPIO 42*/\
+	MUX_VAL(CP(GPMC_A10),		(IDIS | PTU | EN  | M4)) /*GPIO 43*/\
 	MUX_VAL(CP(GPMC_D0),		(IEN  | PTD | DIS | M0)) /*GPMC_D0*/\
 	MUX_VAL(CP(GPMC_D1),		(IEN  | PTD | DIS | M0)) /*GPMC_D1*/\
 	MUX_VAL(CP(GPMC_D2),		(IEN  | PTD | DIS | M0)) /*GPMC_D2*/\

include/configs/tricorder.h

@@ -60,6 +60,20 @@
 /* GPIO support */
 #define CONFIG_OMAP_GPIO
 
+/* LED support */
+#define CONFIG_STATUS_LED
+#define CONFIG_BOARD_SPECIFIC_LED
+#define CONFIG_CMD_LED			/* LED command */
+#define STATUS_LED_BIT			(1 << 0)
+#define STATUS_LED_STATE		STATUS_LED_ON
+#define STATUS_LED_PERIOD		(CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BIT1			(1 << 1)
+#define STATUS_LED_STATE1		STATUS_LED_ON
+#define STATUS_LED_PERIOD1		(CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BIT2			(1 << 2)
+#define STATUS_LED_STATE2		STATUS_LED_ON
+#define STATUS_LED_PERIOD2		(CONFIG_SYS_HZ / 2)
+
 /* NS16550 Configuration */
 #define CONFIG_SYS_NS16550
 #define CONFIG_SYS_NS16550_SERIAL