From: Jonas Karlman <jonas@kwiboo.se>
Date: Thu, 12 Mar 2026 21:30:19 +0000 (+0100)
Subject: arm64: dts: rockchip: Enable OTP controller for RK3528
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8c2c73084bd10237a9bc8f1d5fd49fe3107e4562;p=thirdparty%2Flinux.git

arm64: dts: rockchip: Enable OTP controller for RK3528

Enable the One Time Programmable Controller (OTPC) in RK3528 and add
an initial nvmem fixed layout.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260312213019.13965-4-heiko@sntech.de
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index d402f28288142..806b8109f67df 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -1190,6 +1190,53 @@
 			status = "disabled";
 		};
 
+		otp: efuse@ffce0000 {
+			compatible = "rockchip,rk3528-otp";
+			reg = <0x0 0xffce0000 0x0 0x4000>;
+			clocks = <&cru CLK_USER_OTPC_NS>, <&cru PCLK_OTPC_NS>,
+				 <&cru CLK_SBPI_OTPC_NS>;
+			clock-names = "otp", "apb_pclk", "sbpi";
+			resets = <&cru SRST_USER_OTPC_NS>, <&cru SRST_P_OTPC_NS>,
+				 <&cru SRST_SBPI_OTPC_NS>;
+			reset-names = "otp", "apb", "sbpi";
+
+			nvmem-layout {
+				compatible = "fixed-layout";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				cpu_code: cpu-code@2 {
+					reg = <0x02 0x2>;
+				};
+
+				otp_cpu_version: cpu-version@8 {
+					reg = <0x08 0x1>;
+					bits = <3 3>;
+				};
+
+				otp_id: id@a {
+					reg = <0x0a 0x10>;
+				};
+
+				cpu_leakage: cpu-leakage@1a {
+					reg = <0x1a 0x1>;
+				};
+
+				logic_leakage: logic-leakage@1b {
+					reg = <0x1b 0x1>;
+				};
+
+				gpu_leakage: gpu-leakage@1c {
+					reg = <0x1c 0x1>;
+				};
+
+				tsadc_trim: tsadc-trim@44 {
+					reg = <0x44 0x2>;
+					bits = <0 10>;
+				};
+			};
+		};
+
 		dmac: dma-controller@ffd60000 {
 			compatible = "arm,pl330", "arm,primecell";
 			reg = <0x0 0xffd60000 0x0 0x4000>;