[Letux-kernel] [PATCH v6 5/6] MIPS: DTS: JZ4780: define node for JZ4780 efuse

H. Nikolaus Schaller hns at goldelico.com
Wed Feb 26 12:16:00 CET 2020


From: PrasannaKumar Muralidharan <prasannatsmkumar at gmail.com>

This patch brings support for the JZ4780 efuse. Currently it only exposes
a read only access to the entire 8K bits efuse memory and the
ethernet mac address for the davicom dm9000 chip on the CI20 board.

It also changes the nemc reg range to avoid overlap.

Tested-by: Mathieu Malaterre <malat at debian.org>
Signed-off-by: PrasannaKumar Muralidharan <prasannatsmkumar at gmail.com>
Signed-off-by: Mathieu Malaterre <malat at debian.org>
Signed-off-by: H. Nikolaus Schaller <hns at goldelico.com>
---
 arch/mips/boot/dts/ingenic/jz4780.dtsi | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index f928329b034b..1e266be28096 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -358,7 +358,7 @@
 
 	nemc: nemc at 13410000 {
 		compatible = "ingenic,jz4780-nemc";
-		reg = <0x13410000 0x10000>;
+		reg = <0x13410000 0x4c>;
 		#address-cells = <2>;
 		#size-cells = <1>;
 		ranges = <1 0 0x1b000000 0x1000000
@@ -373,6 +373,21 @@
 		status = "disabled";
 	};
 
+	efuse: efuse at 134100d0 {
+		compatible = "ingenic,jz4780-efuse";
+		reg = <0x134100d0 0x2c>;
+
+		clocks = <&cgu JZ4780_CLK_AHB2>;
+		clock-names = "ahb2";
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		eth0_addr: eth-mac-addr at 0x22 {
+			reg = <0x22 0x6>;
+		};
+	};
+
 	dma: dma at 13420000 {
 		compatible = "ingenic,jz4780-dma";
 		reg = <0x13420000 0x400
-- 
2.23.0



More information about the Letux-kernel mailing list