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authorMichał Żygowski <michal.zygowski@3mdeb.com>2018-07-30 12:31:00 +0200
committerFelix Held <felix-coreboot@felixheld.de>2018-08-04 15:20:12 +0000
commit6837769a9028f91b502bab98ae30b9167ca8837f (patch)
treed5ebc7bb6904aa20516590d5aa00c6b15ca48e88
parenta4432f469a97b4279cb53b79acd5c835e0880981 (diff)
downloadcoreboot-6837769a9028f91b502bab98ae30b9167ca8837f.tar.xz
mb/pcengines/apu2: turn LED 2 and LED 3 off in final stage
Due to vendor's requirements LED 2 and LED 3 should be turned off in late boot process. Add appropriate functions to read and write GPIO status. Change-Id: Ia286ef7d02cfcefacf0e8d358847406efe1496fb Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com> Reviewed-on: https://review.coreboot.org/27729 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
-rw-r--r--src/mainboard/pcengines/apu2/gpio_ftns.c17
-rw-r--r--src/mainboard/pcengines/apu2/gpio_ftns.h2
-rw-r--r--src/mainboard/pcengines/apu2/mainboard.c10
3 files changed, 29 insertions, 0 deletions
diff --git a/src/mainboard/pcengines/apu2/gpio_ftns.c b/src/mainboard/pcengines/apu2/gpio_ftns.c
index 58dedffe9d..f3939cd2a1 100644
--- a/src/mainboard/pcengines/apu2/gpio_ftns.c
+++ b/src/mainboard/pcengines/apu2/gpio_ftns.c
@@ -38,6 +38,23 @@ void configure_gpio(u32 iomux_gpio, u8 iomux_ftn, u32 gpio, u32 setting)
iomux_ftn & 0x3);
}
+u8 read_gpio(u32 gpio)
+{
+ u32 status = read32((const volatile void *)(ACPI_MMIO_BASE + GPIO_OFFSET
+ + gpio));
+
+ return (status & GPIO_PIN_STS) ? 1 : 0;
+}
+
+void write_gpio(u32 gpio, u8 value)
+{
+ u32 status = read32((const volatile void *)(ACPI_MMIO_BASE + GPIO_OFFSET
+ + gpio));
+ status &= ~GPIO_OUTPUT_VALUE;
+ status |= (value > 0) ? GPIO_OUTPUT_VALUE : 0;
+ write32((volatile void *)(ACPI_MMIO_BASE + GPIO_OFFSET + gpio), status);
+}
+
int get_spd_offset(void)
{
u8 index = 0;
diff --git a/src/mainboard/pcengines/apu2/gpio_ftns.h b/src/mainboard/pcengines/apu2/gpio_ftns.h
index 05f54148c4..24d6a7f772 100644
--- a/src/mainboard/pcengines/apu2/gpio_ftns.h
+++ b/src/mainboard/pcengines/apu2/gpio_ftns.h
@@ -17,6 +17,8 @@
#define GPIO_FTNS_H
void configure_gpio(u32 iomux_gpio, u8 iomux_ftn, u32 gpio, u32 setting);
+u8 read_gpio(u32 gpio);
+void write_gpio(u32 gpio, u8 value);
int get_spd_offset(void);
#define IOMUX_OFFSET 0xD00
diff --git a/src/mainboard/pcengines/apu2/mainboard.c b/src/mainboard/pcengines/apu2/mainboard.c
index 8f2d622852..9434b938f4 100644
--- a/src/mainboard/pcengines/apu2/mainboard.c
+++ b/src/mainboard/pcengines/apu2/mainboard.c
@@ -178,6 +178,15 @@ static void mainboard_enable(struct device *dev)
pirq_setup();
}
+static void mainboard_final(void *chip_info)
+{
+ //
+ // Turn off LED 2 and LED 3
+ //
+ write_gpio(GPIO_58, 1);
+ write_gpio(GPIO_59, 1);
+}
+
/*
* We will stuff a modified version of the first NICs (BDF 1:0.0) MAC address
* into the smbios serial number location.
@@ -228,4 +237,5 @@ const char *smbios_mainboard_sku(void)
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
+ .final = mainboard_final,
};