---
arch/arm/dts/imx8mn-var-som-symphony.dts | 4 -
.../variscite/imx8mn_var_som/imx8mn_var_som.c | 80 +++++++++++++++++++
configs/imx8mn_var_som_defconfig | 2 +
3 files changed, 82 insertions(+), 4 deletions(-)
diff --git a/arch/arm/dts/imx8mn-var-som-symphony.dts
b/arch/arm/dts/imx8mn-var-som-symphony.dts
index 3ed7021a487..5c8e4e81752 100644
--- a/arch/arm/dts/imx8mn-var-som-symphony.dts
+++ b/arch/arm/dts/imx8mn-var-som-symphony.dts
@@ -56,10 +56,6 @@
};
};
-ðphy {
- reset-gpios = <&pca9534 5 GPIO_ACTIVE_HIGH>;
-};
-
&i2c2 {
clock-frequency = <400000>;
pinctrl-names = "default";
diff --git a/board/variscite/imx8mn_var_som/imx8mn_var_som.c
b/board/variscite/imx8mn_var_som/imx8mn_var_som.c
index a89457e8f57..61b9455a8f4 100644
--- a/board/variscite/imx8mn_var_som/imx8mn_var_som.c
+++ b/board/variscite/imx8mn_var_som/imx8mn_var_som.c
@@ -14,6 +14,7 @@
#include <malloc.h>
#include <asm/io.h>
#include <asm/global_data.h>
+#include <dt-bindings/gpio/gpio.h>
#include <linux/libfdt.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -161,4 +162,83 @@ int checkboard(void)
#endif /* CONFIG_DISPLAY_BOARDINFO */
+static int insert_gpios_prop(void *blob, int node, const char *prop,
+ unsigned int phandle, u32 gpio, u32 flags)
+{
+ fdt32_t val[3] = { cpu_to_fdt32(phandle), cpu_to_fdt32(gpio),
+ cpu_to_fdt32(flags) };
+ return fdt_setprop(blob, node, prop, &val, sizeof(val));
+}
+
+static int configure_phy_reset_gpios(void *blob)
+{
+ int node;
+ int phynode;
+ int ret;
+ u32 handle;
+ u32 gpio;
+ u32 flags;
+ char path[1024];
+ const char *eth_alias = "ethernet0";
+
+ snprintf(path, sizeof(path), "%s/mdio/ethernet-phy@4",
+ fdt_get_alias(blob, eth_alias));
+
+ phynode = fdt_path_offset(blob, path);
+ if (phynode < 0) {
+ pr_err("%s(): unable to locate PHY node: %s\n", __func__, path);
+ return 0;
+ }
+
+ if (gd_board_type() & VAR_EEPROM_F_ETH) {
+ snprintf(path, sizeof(path), "%s",
+ fdt_get_alias(blob, "gpio0")); /* Alias to gpio1 */
+ gpio = 9;
+ flags = GPIO_ACTIVE_LOW;
+ } else {
+ snprintf(path, sizeof(path), "%s/gpio@20",
+ fdt_get_alias(blob, "i2c1")); /* Alias to i2c2 */
+ gpio = 5;
+ flags = GPIO_ACTIVE_HIGH;
+ }
+
+ node = fdt_path_offset(blob, path);
+ if (node < 0) {
+ pr_err("%s(): unable to locate GPIO node: %s\n", __func__,
+ path);
+ return 0;
+ }
+
+ handle = fdt_get_phandle(blob, node);
+ if (handle < 0) {
+ pr_err("%s(): unable to locate GPIO controller handle: %s\n",
+ __func__, path);
+ }
+
+ ret = insert_gpios_prop(blob, phynode, "reset-gpios",
+ handle, gpio, flags);
+ if (ret < 0) {
+ pr_err("%s(): failed to set reset-gpios property\n", __func__);
+ return ret;
+ }
+
+ return 0;
+}
+
+#if defined(CONFIG_OF_BOARD_FIXUP)
+int board_fix_fdt(void *blob)
+{
+ /* Fix U-Boot device tree: */
+ return configure_phy_reset_gpios(blob);
+}
+#endif /* CONFIG_OF_BOARD_FIXUP */
+
+#if defined(CONFIG_OF_BOARD_SETUP)
+int ft_board_setup(void *blob, struct bd_info *bd)
+{
+ /* Fix kernel device tree: */
+ return configure_phy_reset_gpios(blob);
+}
+#endif /* CONFIG_OF_BOARD_SETUP */
+
#endif /* CONFIG_SPL_BUILD */
diff --git a/configs/imx8mn_var_som_defconfig b/configs/imx8mn_var_som_defconfig
index e54c20e1531..b346b14ebdd 100644
--- a/configs/imx8mn_var_som_defconfig
+++ b/configs/imx8mn_var_som_defconfig
@@ -23,9 +23,11 @@ CONFIG_SPL_SYS_MALLOC_F_LEN=0x2000
CONFIG_SPL=y
CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
CONFIG_SYS_LOAD_ADDR=0x40480000
+CONFIG_OF_BOARD_FIXUP=y
CONFIG_FIT=y
CONFIG_FIT_EXTERNAL_OFFSET=0x3000
CONFIG_SPL_LOAD_FIT=y
+CONFIG_OF_BOARD_SETUP=y
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_DEFAULT_FDT_FILE="freescale/imx8mn-var-som-symphony.dtb"
