This uses an i2c eeprom to load a mac address using the nvmem interface.
Signed-off-by: Sean Anderson sean.anderson@seco.com ---
arch/sandbox/dts/test.dts | 9 ++++++++- drivers/misc/i2c_eeprom_emul.c | 4 ++++ 2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts index e111a1f050..031fe2bf6d 100644 --- a/arch/sandbox/dts/test.dts +++ b/arch/sandbox/dts/test.dts @@ -517,7 +517,8 @@ eth_3: sbe5 { compatible = "sandbox,eth"; reg = <0x10005000 0x1000>; - mac-address = [ 02 00 11 22 33 45 ]; + nvmem-cells = <ð3_addr>; + nvmem-cell-names = "mac-address"; };
eth@10004000 { @@ -683,6 +684,8 @@ pinctrl-0 = <&pinmux_i2c0_pins>;
eeprom@2c { + #address-cells = <1>; + #size-cells = <1>; reg = <0x2c>; compatible = "i2c-eeprom"; sandbox,emul = <&emul_eeprom>; @@ -694,6 +697,10 @@ reg = <10 2>; }; }; + + eth3_addr: mac-address@24 { + reg = <24 6>; + }; };
rtc_0: rtc@43 { diff --git a/drivers/misc/i2c_eeprom_emul.c b/drivers/misc/i2c_eeprom_emul.c index 85b127c406..6f32087ede 100644 --- a/drivers/misc/i2c_eeprom_emul.c +++ b/drivers/misc/i2c_eeprom_emul.c @@ -171,11 +171,15 @@ static int sandbox_i2c_eeprom_probe(struct udevice *dev) { struct sandbox_i2c_flash_plat_data *plat = dev_get_plat(dev); struct sandbox_i2c_flash *priv = dev_get_priv(dev); + /* For eth3 */ + const u8 mac[] = { 0x02, 0x00, 0x11, 0x22, 0x33, 0x45 };
priv->data = calloc(1, plat->size); if (!priv->data) return -ENOMEM;
+ memcpy(&priv->data[24], mac, sizeof(mac)); + return 0; }