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Diffstat (limited to 'target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch')
-rw-r--r--target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch31
1 files changed, 31 insertions, 0 deletions
diff --git a/target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch b/target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch
new file mode 100644
index 0000000000..792028b292
--- /dev/null
+++ b/target/linux/rockchip/patches-5.10/005-arm64-dts-rockchip-add-EEPROM-node-for-NanoPi-R4S.patch
@@ -0,0 +1,31 @@
+From af20b3384e8723077cc6484160b0cf4e9be321de Mon Sep 17 00:00:00 2001
+From: Tianling Shen <cnsztl@gmail.com>
+Date: Mon, 7 Jun 2021 15:45:37 +0800
+Subject: [PATCH] arm64: dts: rockchip: add EEPROM node for NanoPi R4S
+
+NanoPi R4S has a EEPROM attached to the 2nd I2C bus (U92), which
+stores the MAC address.
+
+Signed-off-by: Tianling Shen <cnsztl@gmail.com>
+---
+ arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+--- a/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
++++ b/arch/arm64/boot/dts/rockchip/rk3399-nanopi-r4s.dts
+@@ -68,6 +68,15 @@
+ status = "disabled";
+ };
+
++&i2c2 {
++ eeprom@51 {
++ compatible = "microchip,24c02", "atmel,24c02";
++ reg = <0x51>;
++ pagesize = <16>;
++ read-only; /* This holds our MAC */
++ };
++};
++
+ &i2c4 {
+ status = "disabled";
+ };