[PATCH v3 11/13] test: Load mac address with i2c eeprom
Sean Anderson
sean.anderson at seco.com
Mon Apr 18 21:36:57 CEST 2022
This uses an i2c eeprom to load a mac address using the nvmem interface.
Signed-off-by: Sean Anderson <sean.anderson at seco.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
(no changes since v1)
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 23a4e1f078..8e16d3cf79 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -523,7 +523,8 @@
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 at 10004000 {
@@ -686,6 +687,8 @@
pinctrl-0 = <&pinmux_i2c0_pins>;
eeprom at 2c {
+ #address-cells = <1>;
+ #size-cells = <1>;
reg = <0x2c>;
compatible = "i2c-eeprom";
sandbox,emul = <&emul_eeprom>;
@@ -697,6 +700,10 @@
reg = <10 2>;
};
};
+
+ eth3_addr: mac-address at 24 {
+ reg = <24 6>;
+ };
};
rtc_0: rtc at 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;
}
--
2.35.1.1320.gc452695387.dirty
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