target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch

   1 From af20b3384e8723077cc6484160b0cf4e9be321de Mon Sep 17 00:00:00 2001
   2 From: Tianling Shen <cnsztl@gmail.com>
   3 Date: Mon, 7 Jun 2021 15:45:37 +0800
   4 Subject: [PATCH] arm64: dts: rockchip: add EEPROM node for NanoPi R4S
   5
   6 NanoPi R4S has a EEPROM attached to the 2nd I2C bus (U92), which
   7 stores the MAC address.
   8
   9 Signed-off-by: Tianling Shen <cnsztl@gmail.com>
  10 ---
  11  arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts | 9 +++++++++
  12  1 file changed, 9 insertions(+)
  13
  14 --- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
  15 +++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
  16 @@ -68,6 +68,15 @@
  17         status = "disabled";
  18  };
  19
  20 +&i2c2 {
  21 +       eeprom@51 {
  22 +               compatible = "microchip,24c02", "atmel,24c02";
  23 +               reg = <0x51>;
  24 +               pagesize = <16>;
  25 +               read-only; /* This holds our MAC */
  26 +       };
  27 +};
  28 +
  29  &i2c4 {
  30         status = "disabled";
  31  };