diff options
Diffstat (limited to 'board/compulab')
| -rw-r--r-- | board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c b/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c index 7e2d88f449c..779b64b140a 100644 --- a/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c +++ b/board/compulab/imx8mm-cl-iot-gate/imx8mm-cl-iot-gate.c @@ -12,6 +12,8 @@ #include <init.h> #include <miiphy.h> #include <netdev.h> +#include <i2c_eeprom.h> +#include <i2c.h> #include <asm/arch/clock.h> #include <asm/arch/imx8mm_pins.h> @@ -418,12 +420,61 @@ int extension_board_scan(struct list_head *extension_list) return ret; } +static int setup_mac_address(void) +{ + unsigned char enetaddr[6]; + struct udevice *dev; + int ret, off; + + ret = eth_env_get_enetaddr("ethaddr", enetaddr); + if (ret) + return 0; + + off = fdt_path_offset(gd->fdt_blob, "eeprom1"); + if (off < 0) { + printf("No eeprom0 path offset found in DT\n"); + return off; + } + + ret = uclass_get_device_by_of_offset(UCLASS_I2C_EEPROM, off, &dev); + if (ret) { + printf("%s: Could not find EEPROM\n", __func__); + return ret; + } + + ret = i2c_set_chip_offset_len(dev, 1); + if (ret) + return ret; + + ret = i2c_eeprom_read(dev, 4, enetaddr, sizeof(enetaddr)); + if (ret) { + printf("%s: Could not read EEPROM\n", __func__); + return ret; + } + + ret = is_valid_ethaddr(enetaddr); + if (!ret) + return -EINVAL; + + ret = eth_env_set_enetaddr("ethaddr", enetaddr); + if (ret) + return ret; + + return 0; +} + int board_late_init(void) { + int ret; + if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) { env_set("board_name", "IOT-GATE-IMX8"); env_set("board_rev", "SBC-IOTMX8"); } + ret = setup_mac_address(); + if (ret < 0) + printf("Cannot set MAC address from EEPROM\n"); + return 0; } |