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BeagleBoard: Added LED driver

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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>
This commit is contained in:
Jason Kridner 2011-04-18 17:23:35 -04:00 committed by Albert ARIBAUD
parent b633f66f02
commit 70d8c9446f
4 changed files with 114 additions and 1 deletions
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4
board/ti/beagle/Makefile
View File

@ -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))

7
board/ti/beagle/beagle.c
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@ -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;
}

91
board/ti/beagle/led.c Normal file
View File

@ -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
}

13
include/configs/omap3_beagle.h
View File

@ -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 */