Rob, Krzysztof,
On 06/11/2022 09:50, Frank Wunderlich wrote:
From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
Add devicetree overlays for using nand and nor on BPI-R3.
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/mediatek/Makefile | 2 +
.../mediatek/mt7986a-bananapi-bpi-r3-nand.dts | 53 +++++++++++++++
.../mediatek/mt7986a-bananapi-bpi-r3-nor.dts | 67 +++++++++++++++++++
3 files changed, 122 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
Do we allow the inclusion of overlays in the kernel?
I don't think so. I see there are some dtbos for some freescale platforms, but I
wasn't aware that we support that. I thought it is all about dtsi includes.
@frank In any case we would need to apply these overlays to some base board to
create a valis dtb.
Regards,
Matthias
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..e12ff825bb50
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nand.dts
@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+
+/dts-v1/;
+/plugin/;
+
+//dtc -O dtb -o bpi-r3-nand.dtbo mt7986a-bananapi-bpi-r3-nand.dts
+
+/ {
+ 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..f11ffd9c4bce
--- /dev/null
+++ b/arch/arm64/boot/dts/mediatek/mt7986a-bananapi-bpi-r3-nor.dts
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+
+/dts-v1/;
+/plugin/;
+
+//dtc -O dtb -o bpi-r3-nor.dtbo mt7986a-bananapi-bpi-r3-nor.dts
+
+/ {
+ 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";
+ };
+ };
+ };
+ };
+ };
+};
