[Letux-kernel] [RFC v3 6/9] MIPS: DTS: JZ4780: define node for JZ4780 efuse

H. Nikolaus Schaller hns at goldelico.com
Sun Feb 16 20:20:48 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.

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 301b62da025e..4cc8abe675c2 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -393,7 +393,7 @@
 
 	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
@@ -408,6 +408,21 @@
 		status = "disabled";
 	};
 
+	efuse: efuse at 134100d0 {
+		compatible = "ingenic,jz4780-efuse";
+		reg = <0x134100d0 0x2c>;
+
+		clocks = <&cgu JZ4780_CLK_AHB2>;
+		clock-names = "bus_clk";
+
+		#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



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