[PATCH v6 11/11] arm64: dts: mt7986: add BPI-R3 nand/nor overlays

[Frank Wunderlich <linux@fw-web.de>]

From: Frank Wunderlich <frank-w@public-files.de>

Add devicetree overlays for using nand and nor on BPI-R3.

Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
---
maybe rename to dtso?

"kbuild: Allow DTB overlays to built from .dtso named source files"
https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux.git/commit/?h=dt/next&id=363547d2191cbc32ca954ba75d72908712398ff2

more comments about the dt overlay-support:

https://patchwork.kernel.org/comment/25092116/
https://patchwork.kernel.org/comment/25085681/
---
v4:
- drop compile-comment from overlays
- add author-information to dt-overlays
---
 arch/arm64/boot/dts/mediatek/Makefile         |  2 +
 .../mediatek/mt7986a-bananapi-bpi-r3-nand.dts | 55 +++++++++++++++
 .../mediatek/mt7986a-bananapi-bpi-r3-nor.dts  | 69 +++++++++++++++++++
 3 files changed, 126 insertions(+)
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dts
 create mode 100644 arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dts

diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index e8902f2cc58f..d42208c4090d 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -8,6 +8,8 @@ dtb-$(CONFIG_ARCH_MEDIATEK) += mt6797-x20-dev.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-rfb1.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7622-bananapi-bpi-r64.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-emmc.dtb
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nand.dtbo
+dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-nor.dtbo
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-bananapi-bpi-r3-sd.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986a-rfb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt7986b-rfb.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dts b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dts
new file mode 100644
index 000000000000..15ee8c568f3c
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dts
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Authors: Daniel Golle <daniel@makrotopia.org>
+ *          Frank Wunderlich <frank-w@public-files.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "bananapi,bpi-r3", "mediatek,mt7986a";
+
+	fragment@0 {
+		target-path = "/soc/spi@1100a000";
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			spi_nand: spi_nand@0 {
+				compatible = "spi-nand";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+				spi-tx-buswidth = <4>;
+				spi-rx-buswidth = <4>;
+
+				partitions {
+					compatible = "fixed-partitions";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					partition@0 {
+						label = "bl2";
+						reg = <0x0 0x80000>;
+						read-only;
+					};
+
+					partition@80000 {
+						label = "reserved";
+						reg = <0x80000 0x300000>;
+					};
+
+					partition@380000 {
+						label = "fip";
+						reg = <0x380000 0x200000>;
+						read-only;
+					};
+
+					partition@580000 {
+						label = "ubi";
+						reg = <0x580000 0x7a80000>;
+					};
+				};
+			};
+		};
+	};
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dts b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dts
new file mode 100644
index 000000000000..f18643a9089c
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dts
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Authors: Daniel Golle <daniel@makrotopia.org>
+ *          Frank Wunderlich <frank-w@public-files.de>
+ */
+
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "bananapi,bpi-r3", "mediatek,mt7986a";
+
+	fragment@0 {
+		target-path = "/soc/spi@1100a000";
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			flash@0 {
+				compatible = "jedec,spi-nor";
+				reg = <0>;
+				spi-max-frequency = <10000000>;
+
+				partitions {
+					compatible = "fixed-partitions";
+					#address-cells = <1>;
+					#size-cells = <1>;
+
+					partition@0 {
+						label = "bl2";
+						reg = <0x0 0x20000>;
+						read-only;
+					};
+
+					partition@20000 {
+						label = "reserved";
+						reg = <0x20000 0x20000>;
+					};
+
+					partition@40000 {
+						label = "u-boot-env";
+						reg = <0x40000 0x40000>;
+					};
+
+					partition@80000 {
+						label = "reserved2";
+						reg = <0x80000 0x80000>;
+					};
+
+					partition@100000 {
+						label = "fip";
+						reg = <0x100000 0x80000>;
+						read-only;
+					};
+
+					partition@180000 {
+						label = "recovery";
+						reg = <0x180000 0xa80000>;
+					};
+
+					partition@c00000 {
+						label = "fit";
+						reg = <0xc00000 0x1400000>;
+						compatible = "denx,fit";
+					};
+				};
+			};
+		};
+	};
+};
-- 
2.34.1