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Diffstat (limited to 'arch/arm64/boot/dts/apple/spi1-nvram.dtsi')
-rw-r--r--arch/arm64/boot/dts/apple/spi1-nvram.dtsi39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/apple/spi1-nvram.dtsi b/arch/arm64/boot/dts/apple/spi1-nvram.dtsi
new file mode 100644
index 000000000000..3df2fd3993b5
--- /dev/null
+++ b/arch/arm64/boot/dts/apple/spi1-nvram.dtsi
@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+//
+// Devicetree include for common spi-nor nvram flash.
+//
+// Apple uses a consistent configiguration for the nvram on all known M1* and
+// M2* devices.
+//
+// Copyright The Asahi Linux Contributors
+
+/ {
+ aliases {
+ nvram = &nvram;
+ };
+};
+
+&spi1 {
+ status = "okay";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ reg = <0x0>;
+ spi-max-frequency = <25000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ nvram: partition@700000 {
+ label = "nvram";
+ /* To be filled by the loader */
+ reg = <0x0 0x0>;
+ status = "disabled";
+ };
+ };
+ };
+};