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rockchip: tinker: set ethaddr in late init

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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>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jonas Karlman 2017-04-22 08:57:54 +00:00 committed by Simon Glass
parent 8880efbd1f
commit ecc3bd73b3
3 changed files with 38 additions and 0 deletions
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7
arch/arm/dts/rk3288-tinker.dts
View File

@ -67,3 +67,10 @@
&gpio8 {
u-boot,dm-pre-reloc;
};
&i2c2 {
m24c08@50 {
compatible = "at,24c08", "i2c-eeprom";
reg = <0x50>;
};
};

28
board/rockchip/tinker_rk3288/tinker-rk3288.c
View File

@ -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;
}

3
configs/tinker-rk3288_defconfig
View File

@ -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