diff mbox series

[RFC,v4,6/6] MIPS: DTS: CI20: make DM9000 Ethernet controller use NVMEM to find the default MAC address

Message ID 1c124c43c0cd96274cb0386d68aa01ad8ef8b2cb.1581958529.git.hns@goldelico.com
State New
Headers show
Series [RFC,v4,1/6] nvmem: add driver for JZ4780 efuse | expand

Commit Message

H. Nikolaus Schaller Feb. 17, 2020, 4:55 p.m. UTC 
There is a unique MAC address programmed into the eFuses
of the JZ4780 chip in the CI20 factory. By using this
for initializing the DM9000 Ethernet controller, every
CI20 board has an individual - but stable - MAC address
and DHCP can assign stable IP addresses.

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
---
 arch/mips/boot/dts/ingenic/ci20.dts | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 37b93166bf22..6dc1f9eeff00 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -355,6 +355,9 @@ 
 
 		interrupt-parent = <&gpe>;
 		interrupts = <19 4>;
+
+		nvmem-cells = <&eth0_addr>;
+		nvmem-cell-names = "mac-address";
 	};
 };