OMAP3: CM-T35: enable the green LED

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>

board/cm_t35/Makefile

@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB	= $(obj)lib$(BOARD).o
 
-COBJS	:= cm_t35.o
+COBJS	:= cm_t35.o leds.o
 
 SRCS	:= $(COBJS:.o=.c)
 OBJS	:= $(addprefix $(obj),$(COBJS))

board/cm_t35/cm_t35.c

@@ -29,6 +29,7 @@
  */
 
 #include <common.h>
+#include <status_led.h>
 #include <netdev.h>
 #include <net.h>
 #include <i2c.h>
@@ -85,6 +86,10 @@ int board_init(void)
 	/* boot param addr */
 	gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
 
+#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
+	status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
+#endif
+
 	return 0;
 }
 
@@ -249,7 +254,7 @@ void set_muxconf_regs(void)
 	MUX_VAL(CP(SYS_NIRQ),		(IEN  | PTU | EN  | M0)); /*SYS_nIRQ*/
 	MUX_VAL(CP(SYS_OFF_MODE),	(IEN  | PTD | DIS | M0)); /*OFF_MODE*/
 	MUX_VAL(CP(SYS_CLKOUT1),	(IEN  | PTD | DIS | M0)); /*CLKOUT1*/
-	MUX_VAL(CP(SYS_CLKOUT2),	(IDIS | PTD | DIS | M4)); /*green LED*/
+	MUX_VAL(CP(SYS_CLKOUT2),	(IDIS | PTU | DIS | M4)); /*green LED*/
 	MUX_VAL(CP(JTAG_nTRST),		(IEN  | PTD | DIS | M0)); /*JTAG_nTRST*/
 	MUX_VAL(CP(JTAG_TCK),		(IEN  | PTD | DIS | M0)); /*JTAG_TCK*/
 	MUX_VAL(CP(JTAG_TMS),		(IEN  | PTD | DIS | M0)); /*JTAG_TMS*/

board/cm_t35/leds.c

@@ -0,0 +1,45 @@
+/*
+ * (C) Copyright 2011
+ * CompuLab, Ltd. <www.compulab.co.il>
+ *
+ * Author: Igor Grinberg <grinberg@compulab.co.il>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+#include <common.h>
+#include <status_led.h>
+#include <asm/arch/gpio.h>
+
+static unsigned int leds[] = { GREEN_LED_GPIO };
+
+void __led_init(led_id_t mask, int state)
+{
+	if (omap_request_gpio(leds[mask]) != 0) {
+		printf("%s: failed requesting GPIO%u\n", __func__, leds[mask]);
+		return;
+	}
+
+	omap_set_gpio_direction(leds[mask], 0);
+}
+
+void __led_set(led_id_t mask, int state)
+{
+	omap_set_gpio_dataout(leds[mask], state == STATUS_LED_ON);
+}
+
+void __led_toggle(led_id_t mask)
+{
+	omap_set_gpio_dataout(leds[mask], !omap_get_gpio_datain(leds[mask]));
+}

include/configs/cm_t35.h

@@ -351,4 +351,19 @@ extern unsigned int boot_flash_type;
 					 CONFIG_SYS_INIT_RAM_SIZE -	\
 					 GENERATED_GBL_DATA_SIZE)
 
+/* Status LED */
+#define CONFIG_STATUS_LED		1 /* Status LED enabled */
+#define CONFIG_BOARD_SPECIFIC_LED	1
+#define STATUS_LED_GREEN		0
+#define STATUS_LED_BIT			STATUS_LED_GREEN
+#define STATUS_LED_STATE		STATUS_LED_ON
+#define STATUS_LED_PERIOD		(CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BOOT			STATUS_LED_BIT
+#define GREEN_LED_GPIO			186 /* CM-T35 Green LED is GPIO186 */
+
+/* GPIO banks */
+#ifdef CONFIG_STATUS_LED
+#define CONFIG_OMAP3_GPIO_6		1 /* GPIO186 is in GPIO bank 6  */
+#endif
+
 #endif /* __CONFIG_H */