Copied dts pieces from Linux Kernel. Support is optional for now, to
make it work the following options have to be enabled: CONFIG_LED,
CONFIG_LED_GPIO, CONFIG_CMD_LED.
Signed-off-by: Alexander Dahl <a...@thorsis.com>
---
.../dts/at91-sam9x60_curiosity-u-boot.dtsi | 18 +++++++++++
arch/arm/dts/at91-sam9x60_curiosity.dts | 30 +++++++++++++++++++
.../sam9x60_curiosity/sam9x60_curiosity.c | 18 +++++++++++
3 files changed, 66 insertions(+)
diff --git a/arch/arm/dts/at91-sam9x60_curiosity-u-boot.dtsi
b/arch/arm/dts/at91-sam9x60_curiosity-u-boot.dtsi
index a1b76e94d1..dd4623311c 100644
--- a/arch/arm/dts/at91-sam9x60_curiosity-u-boot.dtsi
+++ b/arch/arm/dts/at91-sam9x60_curiosity-u-boot.dtsi
@@ -20,6 +20,24 @@
chosen {
bootph-all;
};
+
+ config {
+ u-boot,boot-led = "blue";
+ };
+
+ leds {
+ led-red {
+ default-state = "off";
+ };
+
+ led-green {
+ default-state = "off";
+ };
+
+ led-blue {
+ default-state = "off";
+ };
+ };
};
&clk32 {
diff --git a/arch/arm/dts/at91-sam9x60_curiosity.dts
b/arch/arm/dts/at91-sam9x60_curiosity.dts
index 2547b4527c..244cacfe1b 100644
--- a/arch/arm/dts/at91-sam9x60_curiosity.dts
+++ b/arch/arm/dts/at91-sam9x60_curiosity.dts
@@ -33,6 +33,28 @@
};
};
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_gpio_leds>;
+
+ led-red {
+ label = "red";
+ gpios = <&pioD 17 GPIO_ACTIVE_HIGH>;
+ };
+
+ led-green {
+ label = "green";
+ gpios = <&pioD 19 GPIO_ACTIVE_HIGH>;
+ };
+
+ led-blue {
+ label = "blue";
+ gpios = <&pioD 21 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
onewire_tm: onewire {
gpios = <&pioD 14 GPIO_ACTIVE_HIGH>;
pinctrl-names = "default";
@@ -167,6 +189,14 @@
};
};
+ leds {
+ pinctrl_gpio_leds: gpio-leds {
+ atmel,pins = <AT91_PIOD 17 AT91_PERIPH_GPIO
AT91_PINCTRL_NONE
+ AT91_PIOD 19 AT91_PERIPH_GPIO
AT91_PINCTRL_NONE
+ AT91_PIOD 21 AT91_PERIPH_GPIO
AT91_PINCTRL_NONE>;
+ };
+ };
+
nand {
pinctrl_nand_oe_we: nand-oe-we-0 {
atmel,pins =
diff --git a/board/atmel/sam9x60_curiosity/sam9x60_curiosity.c
b/board/atmel/sam9x60_curiosity/sam9x60_curiosity.c
index 0fe0de9fde..f53d359404 100644
--- a/board/atmel/sam9x60_curiosity/sam9x60_curiosity.c
+++ b/board/atmel/sam9x60_curiosity/sam9x60_curiosity.c
@@ -9,6 +9,7 @@
#include <debug_uart.h>
#include <fdtdec.h>
#include <init.h>
+#include <led.h>
#include <asm/arch/at91_common.h>
#include <asm/arch/at91_rstc.h>
#include <asm/arch/at91_sfr.h>
@@ -18,6 +19,7 @@
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/mach-types.h>
+#include <dm/ofnode.h>
extern void at91_pda_detect(void);
@@ -27,9 +29,25 @@ void at91_prepare_cpu_var(void);
static void board_leds_init(void)
{
+#if CONFIG_IS_ENABLED(LED)
+ const char *led_name;
+ struct udevice *dev;
+ int ret;
+
+ led_name = ofnode_conf_read_str("u-boot,boot-led");
+ if (!led_name)
+ return;
+
+ ret = led_get_by_label(led_name, &dev);
+ if (ret)
+ return;
+
+ led_set_state(dev, LEDST_ON);
+#else
at91_set_pio_output(AT91_PIO_PORTD, 17, 0); /* LED RED */
at91_set_pio_output(AT91_PIO_PORTD, 19, 0); /* LED GREEN */
at91_set_pio_output(AT91_PIO_PORTD, 21, 1); /* LED BLUE */
+#endif
}
int board_late_init(void)
--
2.30.2
