ARM: dts: stm32: Use DT alias for the configuration EEPROM
Use DT /aliases node to establish a stable phandle to the configuration
EEPROM. This permits the configuration EEPROM to be moved e.g. to a
different address or a different bus. Adjust the board code to handle
new phandle lookup.
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@st.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Patrick Delaunay <patrick.delaunay@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
diff --git a/board/dhelectronics/dh_stm32mp1/board.c b/board/dhelectronics/dh_stm32mp1/board.c
index b663696..7bcd713 100644
--- a/board/dhelectronics/dh_stm32mp1/board.c
+++ b/board/dhelectronics/dh_stm32mp1/board.c
@@ -78,22 +78,21 @@
int setup_mac_address(void)
{
- struct udevice *dev;
- ofnode eeprom;
unsigned char enetaddr[6];
- int ret;
+ struct udevice *dev;
+ int off, ret;
ret = eth_env_get_enetaddr("ethaddr", enetaddr);
if (ret) /* ethaddr is already set */
return 0;
- eeprom = ofnode_path("/soc/i2c@5c002000/eeprom@50");
- if (!ofnode_valid(eeprom)) {
- printf("Invalid hardware path to EEPROM!\n");
- return -ENODEV;
+ off = fdt_path_offset(gd->fdt_blob, "eeprom0");
+ if (off < 0) {
+ printf("%s: No eeprom0 path offset\n", __func__);
+ return off;
}
- ret = uclass_get_device_by_ofnode(UCLASS_I2C_EEPROM, eeprom, &dev);
+ ret = uclass_get_device_by_of_offset(UCLASS_I2C_EEPROM, off, &dev);
if (ret) {
printf("Cannot find EEPROM!\n");
return ret;