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authorJason Kridner <jkridner@beagleboard.org>2011-04-18 17:23:35 -0400
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2011-04-27 19:38:06 +0200
commit70d8c9446fe1d99dd4148dc39ceb5dc6ce39a934 (patch)
treea20e764e3271bc3675f2950dfe6afbfba025d439
parentb633f66f02ab3df6adc8fc65f13769e5fb9c328f (diff)
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BeagleBoard: Added LED driver
Added LED driver using status_led. USR0 is set to monitor the boot status. USR1 is set to be the green LED. Included adding configuration and command to the default configuration. Signed-off-by: Jason Kridner <jkridner@beagleboard.org> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
-rw-r--r--board/ti/beagle/Makefile4
-rw-r--r--board/ti/beagle/beagle.c7
-rw-r--r--board/ti/beagle/led.c91
-rw-r--r--include/configs/omap3_beagle.h13
4 files changed, 114 insertions, 1 deletions
diff --git a/board/ti/beagle/Makefile b/board/ti/beagle/Makefile
index 3b4aaac..d9f445f 100644
--- a/board/ti/beagle/Makefile
+++ b/board/ti/beagle/Makefile
@@ -25,8 +25,10 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
-COBJS := beagle.o
+COBJS-y := $(BOARD).o
+COBJS-$(CONFIG_STATUS_LED) += led.o
+COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
index c066d6e..89e3dba 100644
--- a/board/ti/beagle/beagle.c
+++ b/board/ti/beagle/beagle.c
@@ -30,6 +30,9 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
#include <twl4030.h>
#include <asm/io.h>
#include <asm/arch/mmc_host_def.h>
@@ -74,6 +77,10 @@ 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;
}
diff --git a/board/ti/beagle/led.c b/board/ti/beagle/led.c
new file mode 100644
index 0000000..df26552
--- /dev/null
+++ b/board/ti/beagle/led.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2010 Texas Instruments, Inc.
+ * Jason Kridner <jkridner@beagleboard.org>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <common.h>
+#include <status_led.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/sys_proto.h>
+#include <asm/arch/gpio.h>
+
+static unsigned int saved_state[2] = {STATUS_LED_OFF, STATUS_LED_OFF};
+
+/* GPIO pins for the LEDs */
+#define BEAGLE_LED_USR0 149
+#define BEAGLE_LED_USR1 150
+
+#ifdef STATUS_LED_GREEN
+void green_LED_off (void)
+{
+ __led_set (STATUS_LED_GREEN, 0);
+}
+
+void green_LED_on (void)
+{
+ __led_set (STATUS_LED_GREEN, 1);
+}
+#endif
+
+void __led_init (led_id_t mask, int state)
+{
+ __led_set (mask, state);
+}
+
+void __led_toggle (led_id_t mask)
+{
+#ifdef STATUS_LED_BIT
+ if (STATUS_LED_BIT & mask) {
+ if (STATUS_LED_ON == saved_state[0])
+ __led_set(STATUS_LED_BIT, 0);
+ else
+ __led_set(STATUS_LED_BIT, 1);
+ }
+#endif
+#ifdef STATUS_LED_BIT1
+ if (STATUS_LED_BIT1 & mask) {
+ if (STATUS_LED_ON == saved_state[1])
+ __led_set(STATUS_LED_BIT1, 0);
+ else
+ __led_set(STATUS_LED_BIT1, 1);
+ }
+#endif
+}
+
+void __led_set (led_id_t mask, int state)
+{
+#ifdef STATUS_LED_BIT
+ if (STATUS_LED_BIT & mask) {
+ if (!omap_request_gpio(BEAGLE_LED_USR0)) {
+ omap_set_gpio_direction(BEAGLE_LED_USR0, 0);
+ omap_set_gpio_dataout(BEAGLE_LED_USR0, state);
+ }
+ saved_state[0] = state;
+ }
+#endif
+#ifdef STATUS_LED_BIT1
+ if (STATUS_LED_BIT1 & mask) {
+ if (!omap_request_gpio(BEAGLE_LED_USR1)) {
+ omap_set_gpio_direction(BEAGLE_LED_USR1, 0);
+ omap_set_gpio_dataout(BEAGLE_LED_USR1, state);
+ }
+ saved_state[1] = state;
+ }
+#endif
+}
+
diff --git a/include/configs/omap3_beagle.h b/include/configs/omap3_beagle.h
index 5cfa4cb..c064ae7 100644
--- a/include/configs/omap3_beagle.h
+++ b/include/configs/omap3_beagle.h
@@ -108,6 +108,18 @@
#define CONFIG_OMAP_HSMMC 1
#define CONFIG_DOS_PARTITION 1
+/* Status LED */
+#define CONFIG_STATUS_LED 1
+#define CONFIG_BOARD_SPECIFIC_LED 1
+#define STATUS_LED_BIT 0x01
+#define STATUS_LED_STATE STATUS_LED_ON
+#define STATUS_LED_PERIOD (CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BIT1 0x02
+#define STATUS_LED_STATE1 STATUS_LED_ON
+#define STATUS_LED_PERIOD1 (CONFIG_SYS_HZ / 2)
+#define STATUS_LED_BOOT STATUS_LED_BIT
+#define STATUS_LED_GREEN STATUS_LED_BIT1
+
/* DDR - I use Micron DDR */
#define CONFIG_OMAP3_MICRON_DDR 1
@@ -138,6 +150,7 @@
#define CONFIG_CMD_I2C /* I2C serial bus support */
#define CONFIG_CMD_MMC /* MMC support */
#define CONFIG_CMD_NAND /* NAND support */
+#define CONFIG_CMD_LED /* LED support */
#undef CONFIG_CMD_FLASH /* flinfo, erase, protect */
#undef CONFIG_CMD_FPGA /* FPGA configuration Support */