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am335x, guardian: boot stage feedback in headless mode

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This patch enables the guardian board to provide feedback
  about the boot stage in headless mode. The on-board led
  would behave in the following pattern

    * U-boot -> GLOW LED
    * Linux  -> BLINK LED [HEART-BEAT PATTERN]

Signed-off-by: Moses Christopher <BollavarapuMoses.Christopher@in.bosch.com>
This commit is contained in:
Moses Christopher 2020-03-25 06:45:45 +00:00 committed by Lokesh Vutla
parent b1c95cc704
commit f2330691d9
3 changed files with 8 additions and 1 deletions
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2
arch/arm/dts/am335x-guardian.dts
View File

@ -58,7 +58,7 @@
label = "guardian:life-led";
gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "heartbeat";
default-state = "off";
default-state = "on";
};
};

4
board/bosch/guardian/board.c
View File

@ -14,6 +14,7 @@
#include <env_internal.h>
#include <errno.h>
#include <i2c.h>
#include <led.h>
#include <miiphy.h>
#include <panel.h>
#include <power/tps65217.h>
@ -232,6 +233,9 @@ err:
int board_late_init(void)
{
#ifdef CONFIG_LED_GPIO
led_default_state();
#endif
set_bootmode_env();
return 0;
}

3
configs/am335x_guardian_defconfig
View File

@ -37,6 +37,7 @@ CONFIG_CMD_SPL=y
CONFIG_CMD_SPL_NAND_OFS=0x0
CONFIG_CMD_ASKENV=y
# CONFIG_CMD_FLASH is not set
# CONFIG_CMD_LED is not set
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
CONFIG_CMD_I2C=y
@ -58,6 +59,8 @@ CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_SPL_DM=y
CONFIG_BOOTCOUNT_LIMIT=y
CONFIG_BOOTCOUNT_ENV=y
CONFIG_LED=y
CONFIG_LED_GPIO=y
CONFIG_MISC=y
# CONFIG_MMC is not set
CONFIG_MTD=y