Set ethernet mac address in late init for Tinker Board, prevents getting a random mac address each boot.

Read mac address from eeprom, first 6 bytes from m24c08@50. Same as /etc/init.d/rockchip.sh on Tinker OS.

Signed-off-by: Jonas Karlman jonas@kwiboo.se ---

Changes in v3: - Use uclass_first_device_err() to find eeprom - Use i2c_eeprom_read() to read eeprom

Changes in v2: - Change to use i2c_eeprom device driver

arch/arm/dts/rk3288-tinker.dts | 7 +++++++ board/rockchip/tinker_rk3288/tinker-rk3288.c | 28 ++++++++++++++++++++++++++++ configs/tinker-rk3288_defconfig | 3 +++ 3 files changed, 38 insertions(+)

diff --git a/arch/arm/dts/rk3288-tinker.dts b/arch/arm/dts/rk3288-tinker.dts index 22881cb785..ea2f715922 100644 --- a/arch/arm/dts/rk3288-tinker.dts +++ b/arch/arm/dts/rk3288-tinker.dts @@ -67,3 +67,10 @@ &gpio8 { u-boot,dm-pre-reloc; }; + +&i2c2 { + m24c08@50 { + compatible = "at,24c08", "i2c-eeprom"; + reg = <0x50>; + }; +}; diff --git a/board/rockchip/tinker_rk3288/tinker-rk3288.c b/board/rockchip/tinker_rk3288/tinker-rk3288.c index 79541a3939..c2872e7330 100644 --- a/board/rockchip/tinker_rk3288/tinker-rk3288.c +++ b/board/rockchip/tinker_rk3288/tinker-rk3288.c @@ -5,3 +5,31 @@ */

#include <common.h> +#include <dm.h> +#include <i2c_eeprom.h> +#include <netdev.h> + +static int get_ethaddr_from_eeprom(u8 *addr) +{ + int ret; + struct udevice *dev; + + ret = uclass_first_device_err(UCLASS_I2C_EEPROM, &dev); + if (ret) + return ret; + + return i2c_eeprom_read(dev, 0, addr, 6); +} + +int rk_board_late_init(void) +{ + u8 ethaddr[6]; + + if (get_ethaddr_from_eeprom(ethaddr)) + return 0; + + if (is_valid_ethaddr(ethaddr)) + eth_setenv_enetaddr("ethaddr", ethaddr); + + return 0; +} diff --git a/configs/tinker-rk3288_defconfig b/configs/tinker-rk3288_defconfig index cec39384b3..dc3699d5c4 100644 --- a/configs/tinker-rk3288_defconfig +++ b/configs/tinker-rk3288_defconfig @@ -11,6 +11,7 @@ CONFIG_CONSOLE_MUX=y # CONFIG_DISPLAY_CPUINFO is not set CONFIG_SPL_STACK_R=y CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN=0x2000 +CONFIG_SPL_I2C_SUPPORT=y # CONFIG_CMD_IMLS is not set CONFIG_CMD_GPT=y CONFIG_CMD_MMC=y @@ -39,6 +40,8 @@ CONFIG_CLK=y CONFIG_SPL_CLK=y CONFIG_ROCKCHIP_GPIO=y CONFIG_SYS_I2C_ROCKCHIP=y +CONFIG_MISC=y +CONFIG_I2C_EEPROM=y CONFIG_MMC_DW=y CONFIG_MMC_DW_ROCKCHIP=y CONFIG_DM_ETH=y