From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Wed, 5 Mar 2025 13:35:13 +0000 (+0100)
Subject: arm64: dts: renesas: r8a779f4: Add UFS tuning parameters in E-FUSE
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=0dde247f5027fa5adf2b0d95147a2b1150040078;p=users%2Fdwmw2%2Flinux.git

arm64: dts: renesas: r8a779f4: Add UFS tuning parameters in E-FUSE

Describe the location in the E-FUSE block of the PLL and AFE tuning
parameters for the Universal Flash Storage controller.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/3e4fca228eb049d54a1ae520104558505dbdf803.1741179629.git.geert+renesas@glider.be
---

diff --git a/arch/arm64/boot/dts/renesas/r8a779f4.dtsi b/arch/arm64/boot/dts/renesas/r8a779f4.dtsi
index ebed41892df33..b216d605c321c 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f4.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f4.dtsi
@@ -10,3 +10,20 @@
 / {
 	compatible = "renesas,r8a779f4", "renesas,r8a779f0";
 };
+
+&fuse {
+	nvmem-layout {
+		compatible = "fixed-layout";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		ufs_tune: calib@144 {
+			reg = <0x144 0x08>;
+		};
+	};
+};
+
+&ufs {
+	nvmem-cells = <&ufs_tune>;
+	nvmem-cell-names = "calibration";
+};