[U-Boot] [PATCH v2 1/1] OMAP3: add boot status GPIO LED for IGEP boards
Javier Martinez Canillas
javier at dowhile0.org
Sun Dec 23 13:31:39 CET 2012
This patch adds an GPIO LED boot status for IGEP boards.
The GPIO LED used is the red LED0 while the Linux kernel
uses the green LED0 as the boot status.
By using different GPIO LEDs, the user can know in which
step of the boot process the board currently is.
Signed-off-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>
---
Changes since v1:
- Don't set gd->bd->bi_arch_number since is done in arch/arm/lib/board.c
- Use CONFIG_MACH_TYPE == MACH_TYPE_IGEP0020 instead of check bi_arch_number
as suggested by Igor Grinberg.
board/isee/igep0020/Makefile | 4 ++-
board/isee/igep0020/igep0020.c | 7 +++++
board/isee/igep0030/Makefile | 4 ++-
board/isee/igep0030/igep0030.c | 7 +++++
board/isee/led.c | 58 ++++++++++++++++++++++++++++++++++++++++
include/configs/igep00x0.h | 11 +++++++
6 files changed, 89 insertions(+), 2 deletions(-)
create mode 100644 board/isee/led.c
diff --git a/board/isee/igep0020/Makefile b/board/isee/igep0020/Makefile
index 00463e1..5ead151 100644
--- a/board/isee/igep0020/Makefile
+++ b/board/isee/igep0020/Makefile
@@ -25,8 +25,10 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
-COBJS := igep0020.o
+COBJS-y := igep0020.o
+COBJS-$(CONFIG_STATUS_LED) += ../led.o
+COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/isee/igep0020/igep0020.c b/board/isee/igep0020/igep0020.c
index a8257a3..c4fe138 100644
--- a/board/isee/igep0020/igep0020.c
+++ b/board/isee/igep0020/igep0020.c
@@ -21,6 +21,9 @@
* MA 02111-1307 USA
*/
#include <common.h>
+#ifdef CONFIG_STATUS_LED
+#include <status_led.h>
+#endif
#include <netdev.h>
#include <twl4030.h>
#include <asm/io.h>
@@ -55,6 +58,10 @@ 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/isee/igep0030/Makefile b/board/isee/igep0030/Makefile
index cbc03d4..1ca011d 100644
--- a/board/isee/igep0030/Makefile
+++ b/board/isee/igep0030/Makefile
@@ -25,8 +25,10 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).o
-COBJS := igep0030.o
+COBJS-y := igep0030.o
+COBJS-$(CONFIG_STATUS_LED) += ../led.o
+COBJS := $(sort $(COBJS-y))
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
diff --git a/board/isee/igep0030/igep0030.c b/board/isee/igep0030/igep0030.c
index 107cb7f..60dabcd 100644
--- a/board/isee/igep0030/igep0030.c
+++ b/board/isee/igep0030/igep0030.c
@@ -21,6 +21,9 @@
* 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/mem.h>
@@ -42,6 +45,10 @@ 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/isee/led.c b/board/isee/led.c
new file mode 100644
index 0000000..023ad67
--- /dev/null
+++ b/board/isee/led.c
@@ -0,0 +1,58 @@
+/*
+ * IGEP boards GPIO LED support
+ *
+ * Author: Javier Martinez Canillas <javier at collabora.co.uk>
+ *
+ * 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/gpio.h>
+
+/* GPIO pin for the LED */
+#if (CONFIG_MACH_TYPE == MACH_TYPE_IGEP0020)
+#define IGEP_GPIO_LED 27
+#else /* MACH_TYPE_IGEP0030 */
+#define IGEP_GPIO_LED 16
+#endif
+
+void __led_init(led_id_t mask, int state)
+{
+ __led_set(mask, state);
+}
+
+void __led_toggle(led_id_t mask)
+{
+ int state;
+
+ if (!gpio_request(IGEP_GPIO_LED, "")) {
+ gpio_direction_output(IGEP_GPIO_LED, 0);
+ state = gpio_get_value(IGEP_GPIO_LED);
+ gpio_set_value(IGEP_GPIO_LED, !state);
+ }
+}
+
+void __led_set(led_id_t mask, int state)
+{
+ if (!gpio_request(IGEP_GPIO_LED, "")) {
+ gpio_direction_output(IGEP_GPIO_LED, 0);
+ gpio_set_value(IGEP_GPIO_LED, state);
+ }
+}
diff --git a/include/configs/igep00x0.h b/include/configs/igep00x0.h
index be7937d..a583be2 100644
--- a/include/configs/igep00x0.h
+++ b/include/configs/igep00x0.h
@@ -82,6 +82,17 @@
#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
+
/* USB */
#define CONFIG_MUSB_UDC 1
#define CONFIG_USB_OMAP3 1
--
1.7.7.6
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