[PATCH v2 0/8] arm64: dts: initial NXP S32G2 support

[PATCH v2 0/8] arm64: dts: initial NXP S32G2 support

[Chester Lin]

Hello,

Here I'd like to propose a patchset, which is initial upstream support for NXP
S32G2. S32G is a processor family developed by NXP for automotive solutions,
such as vehicle networking and automotive high-performance processing. This
series focuses on S32G2, which is the latest generation we can find at the
moment. As the first round to support S32G2, this patchset only enables basic
components and interfaces the SoC must have while kernel booting, which aims
to have minimum hardware enablement for these two boards, S32G-VNP-EVB and
S32G-VNP-RDB2. The concepts of how these boards work are originated from the
downstream kernel tree[1] developed by NXP, which provides lots of details
about the SoC S32G274A and its integrated boards. This series has been
verified with downstream ATF[2] & U-Boot[3] based on the ATF boot flow.

Thanks,
Chester

[1] https://source.codeaurora.org/external/autobsps32/linux/
[2] https://source.codeaurora.org/external/autobsps32/arm-trusted-firmware/
[3] https://source.codeaurora.org/external/autobsps32/u-boot/

Changes in v2:
- dt-bindings:
  - Rename the compatible vendor string to "nxp," for s32g2.
  - Drop the specific description "S32V234 SoC".
  - Fill my name in the maintainer field. I tried to contact the authors
    of fsl,s32-linflexuart.txt but got no response.
  - Remove redundant minItems/maxItems from compatible properties.
  - Remove the redundant example from fsl,s32-linflexuart.yaml.
- dtsi/dts:
  - Add a SoC description in s32g2.dtsi.
  - Add an interrupt-affinity to the pmu node.
  - Move the psci node into the "/firmware" node.
  - Remove the redundant properties and white lines in DT.
  - Remove the wrong interrupt specifier from the gic node.
  - Specify the range and cell-size of /soc [0 - 4 GiB].
  - Correct the reserved size of GICR to 512Kbytes [0x80000].
  - Add new Signed-off-by to the DT uart patch.
  - Fix copyright strings.
  - Revise reg properties based on new cell-size.
  - Move the serial/uart aliases from the SoC .dtsi to board .dts files.
  - Correct the model string of RDB2.
  - Add comments for the uart markings on PCB.
  - Adjust RAM size comments of memory nodes.
  - Convert reg addresses of memory nodes into hex format.
- MAINTAINERS
  - Add information of reviewers.

Chester Lin (8):
  dt-bindings: arm: fsl: add NXP S32G2 boards
  dt-bindings: serial: fsl-linflexuart: convert to json-schema format
  dt-bindings: serial: fsl-linflexuart: add compatible for S32G2
  arm64: dts: add NXP S32G2 support
  arm64: dts: s32g2: add serial/uart support
  arm64: dts: s32g2: add VNP-EVB and VNP-RDB2 support
  arm64: dts: s32g2: add memory nodes for evb and rdb2
  MAINTAINERS: add an entry for NXP S32G boards

 .../devicetree/bindings/arm/fsl.yaml          |   7 +
 .../bindings/serial/fsl,s32-linflexuart.txt   |  22 ----
 .../bindings/serial/fsl,s32-linflexuart.yaml  |  48 +++++++
 MAINTAINERS                                   |   9 ++
 arch/arm64/boot/dts/freescale/Makefile        |   2 +
 arch/arm64/boot/dts/freescale/s32g2.dtsi      | 124 ++++++++++++++++++
 .../arm64/boot/dts/freescale/s32g274a-evb.dts |  34 +++++
 .../boot/dts/freescale/s32g274a-rdb2.dts      |  40 ++++++
 8 files changed, 264 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
 create mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
 create mode 100644 arch/arm64/boot/dts/freescale/s32g2.dtsi
 create mode 100644 arch/arm64/boot/dts/freescale/s32g274a-evb.dts
 create mode 100644 arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts

-- 
2.30.0

[PATCH v2 1/8] dt-bindings: arm: fsl: add NXP S32G2 boards

[Chester Lin]

Add bindings for S32G2's evaluation board (S32G-VNP-EVB) and reference
design board 2 ( S32G-VNP-RDB2).

Signed-off-by: Chester Lin <clin@suse.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Acked-by: Rob Herring <robh@kernel.org>
---
Changes in v2:
- Rename the vendor string to "nxp,".

 Documentation/devicetree/bindings/arm/fsl.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml
index 60f4862ba15e..12ab7ac565fb 100644
--- a/Documentation/devicetree/bindings/arm/fsl.yaml
+++ b/Documentation/devicetree/bindings/arm/fsl.yaml
@@ -990,6 +990,13 @@ properties:
           - const: solidrun,lx2160a-cex7
           - const: fsl,lx2160a
 
+      - description: S32G2 based Boards
+        items:
+          - enum:
+              - nxp,s32g274a-evb
+              - nxp,s32g274a-rdb2
+          - const: nxp,s32g2
+
       - description: S32V234 based Boards
         items:
           - enum:
-- 
2.30.0

[PATCH v2 2/8] dt-bindings: serial: fsl-linflexuart: convert to json-schema format

[Chester Lin]

Convert the FSL LINFlexD UART binding to json-schema.

Signed-off-by: Chester Lin <clin@suse.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
---
Changes in v2:
- Drop the specific description "S32V234 SoC".
- Fill my name in the maintainer field. I tried to contact the authors
  of fsl,s32-linflexuart.txt but got no response.

 .../bindings/serial/fsl,s32-linflexuart.txt   | 22 ---------
 .../bindings/serial/fsl,s32-linflexuart.yaml  | 46 +++++++++++++++++++
 2 files changed, 46 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
 create mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml

diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
deleted file mode 100644
index f1bbe0826be5..000000000000
--- a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-* Freescale LINFlexD UART
-
-The LINFlexD controller implements several LIN protocol versions, as well as
-support for full-duplex UART communication through 8-bit and 9-bit frames.
-
-See chapter 47 ("LINFlexD") in the reference manual[1].
-
-Required properties:
-- compatible :
-  - "fsl,s32v234-linflexuart" for LINFlexD configured in UART mode, which
-    is compatible with the one integrated on S32V234 SoC
-- reg : Address and length of the register set for the device
-- interrupts : Should contain uart interrupt
-
-Example:
-uart0: serial@40053000 {
-	compatible = "fsl,s32v234-linflexuart";
-	reg = <0x0 0x40053000 0x0 0x1000>;
-	interrupts = <0 59 4>;
-};
-
-[1] https://www.nxp.com/webapp/Download?colCode=S32V234RM
diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
new file mode 100644
index 000000000000..b6fc123e8375
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/fsl,s32-linflexuart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale LINFlexD UART
+
+description: |
+  The LINFlexD controller implements several LIN protocol versions, as well
+  as support for full-duplex UART communication through 8-bit and 9-bit
+  frames. See chapter 47 ("LINFlexD") in the reference manual
+  https://www.nxp.com/webapp/Download?colCode=S32V234RM.
+
+maintainers:
+  - Chester Lin <clin@suse.com>
+
+allOf:
+  - $ref: "serial.yaml"
+
+properties:
+  compatible:
+    description: The LINFlexD controller in UART mode.
+    items:
+      - const: fsl,s32v234-linflexuart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    serial@40053000 {
+        compatible = "fsl,s32v234-linflexuart";
+        reg = <0x40053000 0x1000>;
+        interrupts = <0 59 4>;
+    };
-- 
2.30.0

[PATCH v2 3/8] dt-bindings: serial: fsl-linflexuart: add compatible for S32G2

[Chester Lin]

Add a compatible string for the uart binding of NXP S32G2 platforms. Here
we use "s32v234-linflexuart" as fallback since the current linflexuart
driver can still work on S32G2.

Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Remove redundant minItems/maxItems from compatible properties.
- Remove the redundant example.
- Rename the vendor string to "nxp," for s32g2.

 .../devicetree/bindings/serial/fsl,s32-linflexuart.yaml     | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
index b6fc123e8375..8b643bae3c7b 100644
--- a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
+++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
@@ -20,9 +20,11 @@ allOf:
 
 properties:
   compatible:
-    description: The LINFlexD controller in UART mode.
-    items:
+    oneOf:
       - const: fsl,s32v234-linflexuart
+      - items:
+          - const: nxp,s32g2-linflexuart
+          - const: fsl,s32v234-linflexuart
 
   reg:
     maxItems: 1
-- 
2.30.0

[PATCH v2 4/8] arm64: dts: add NXP S32G2 support

[Chester Lin]

Add an initial dtsi file for generic SoC features of NXP S32G2.

Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Add a SoC description.
- Add an interrupt-affinity to the pmu node.
- Move the psci node into the "/firmware" node.
- Remove the redundant properties and white lines.
- Remove the wrong interrupt specifier from the gic node.
- Specify the range and cell-size of /soc [0 - 4 GiB].
- Correct the reserved size of GICR to 512KiB [0x80000].

 arch/arm64/boot/dts/freescale/s32g2.dtsi | 99 ++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/s32g2.dtsi

diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
new file mode 100644
index 000000000000..53b18671deec
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * NXP S32G2 SoC family
+ *
+ * Copyright (c) 2021 SUSE LLC
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+	compatible = "nxp,s32g2";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x0>;
+			enable-method = "psci";
+			next-level-cache = <&cluster0_l2>;
+		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x1>;
+			enable-method = "psci";
+			next-level-cache = <&cluster0_l2>;
+		};
+
+		cpu2: cpu@100 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x100>;
+			enable-method = "psci";
+			next-level-cache = <&cluster1_l2>;
+		};
+
+		cpu3: cpu@101 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a53";
+			reg = <0x101>;
+			enable-method = "psci";
+			next-level-cache = <&cluster1_l2>;
+		};
+
+		cluster0_l2: l2-cache0 {
+			compatible = "cache";
+		};
+
+		cluster1_l2: l2-cache1 {
+			compatible = "cache";
+		};
+	};
+
+	pmu {
+		compatible = "arm,cortex-a53-pmu";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	timer {
+		compatible = "arm,armv8-timer";
+		interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	firmware {
+		psci {
+			compatible = "arm,psci-1.0";
+			method = "smc";
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0 0 0x80000000>;
+
+		gic: interrupt-controller@50800000 {
+			compatible = "arm,gic-v3";
+			reg = <0x50800000 0x10000>,
+			      <0x50880000 0x80000>,
+			      <0x50400000 0x2000>,
+			      <0x50410000 0x2000>,
+			      <0x50420000 0x2000>;
+			interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-controller;
+			#interrupt-cells = <3>;
+		};
+	};
+};
-- 
2.30.0

[PATCH v2 5/8] arm64: dts: s32g2: add serial/uart support

[Chester Lin]

Add serial/uart support for NXP S32G2 based on the information provided by
NXP's CodeAurora BSP.

Signed-off-by: Larisa Grigore <larisa.grigore@nxp.com>
Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Add new Signed-off-by.
- Fix the copyright string.
- Remove aliases.
- Revise reg properties based on new cell size.

 arch/arm64/boot/dts/freescale/s32g2.dtsi | 25 ++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
index 53b18671deec..59ea8a25aa4c 100644
--- a/arch/arm64/boot/dts/freescale/s32g2.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
@@ -3,6 +3,7 @@
  * NXP S32G2 SoC family
  *
  * Copyright (c) 2021 SUSE LLC
+ * Copyright (c) 2017-2021 NXP
  */
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -84,6 +85,30 @@ soc {
 		#size-cells = <1>;
 		ranges = <0 0 0 0x80000000>;
 
+		uart0: serial@401c8000 {
+			compatible = "nxp,s32g2-linflexuart",
+				     "fsl,s32v234-linflexuart";
+			reg = <0x401c8000 0x3000>;
+			interrupts = <GIC_SPI 82 IRQ_TYPE_EDGE_RISING>;
+			status = "disabled";
+		};
+
+		uart1: serial@401cc000 {
+			compatible = "nxp,s32g2-linflexuart",
+				     "fsl,s32v234-linflexuart";
+			reg = <0x401cc000 0x3000>;
+			interrupts = <GIC_SPI 83 IRQ_TYPE_EDGE_RISING>;
+			status = "disabled";
+		};
+
+		uart2: serial@402bc000 {
+			compatible = "nxp,s32g2-linflexuart",
+				     "fsl,s32v234-linflexuart";
+			reg = <0x402bc000 0x3000>;
+			interrupts = <GIC_SPI 84 IRQ_TYPE_EDGE_RISING>;
+			status = "disabled";
+		};
+
 		gic: interrupt-controller@50800000 {
 			compatible = "arm,gic-v3";
 			reg = <0x50800000 0x10000>,
-- 
2.30.0

[PATCH v2 6/8] arm64: dts: s32g2: add VNP-EVB and VNP-RDB2 support

[Chester Lin]

Add initial device-trees of NXP S32G2's Evaluation Board (S32G-VNP-EVB)
and Reference Design 2 Board (S32G-VNP-RDB2).

Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Correct the model string.
- Rename the compatible vendor string to "nxp,".
- Move the serial/uart aliases from the SoC .dtsi to board .dts files.
- Add comments for the uart markings on PCB.

 arch/arm64/boot/dts/freescale/Makefile        |  2 ++
 .../arm64/boot/dts/freescale/s32g274a-evb.dts | 26 +++++++++++++++
 .../boot/dts/freescale/s32g274a-rdb2.dts      | 32 +++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/s32g274a-evb.dts
 create mode 100644 arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index db9e36ebe932..0d4a18bd83e6 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -70,4 +70,6 @@ dtb-$(CONFIG_ARCH_MXC) += imx8qxp-ai_ml.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-colibri-eval-v3.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8qxp-mek.dtb
 
+dtb-$(CONFIG_ARCH_S32) += s32g274a-evb.dtb
+dtb-$(CONFIG_ARCH_S32) += s32g274a-rdb2.dtb
 dtb-$(CONFIG_ARCH_S32) += s32v234-evb.dtb
diff --git a/arch/arm64/boot/dts/freescale/s32g274a-evb.dts b/arch/arm64/boot/dts/freescale/s32g274a-evb.dts
new file mode 100644
index 000000000000..3aec05de0842
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/s32g274a-evb.dts
@@ -0,0 +1,26 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) 2021 SUSE LLC
+ */
+
+/dts-v1/;
+
+#include "s32g2.dtsi"
+
+/ {
+	model = "NXP S32G2 Evaluation Board (S32G-VNP-EVB)";
+	compatible = "nxp,s32g274a-evb", "nxp,s32g2";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+/* UART (J58) to Micro USB port */
+&uart0 {
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
new file mode 100644
index 000000000000..ed3f23babdca
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright (c) 2021 SUSE LLC
+ */
+
+/dts-v1/;
+
+#include "s32g2.dtsi"
+
+/ {
+	model = "NXP S32G2 Reference Design Board 2 (S32G-VNP-RDB2)";
+	compatible = "nxp,s32g274a-rdb2", "nxp,s32g2";
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+/* UART (J2) to Micro USB port */
+&uart0 {
+	status = "okay";
+};
+
+/* UART (J1) to Micro USB port */
+&uart1 {
+	status = "okay";
+};
-- 
2.30.0

[PATCH v2 7/8] arm64: dts: s32g2: add memory nodes for evb and rdb2

[Chester Lin]

Add memory nodes for S32G-VNP-EVB and S32G-VNP-RDB2.

Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Modify the patch description.
- Fix the copyright string.
- Adjust RAM size comments.
- Convert reg addresses of memory nodes into hex format.

 arch/arm64/boot/dts/freescale/s32g274a-evb.dts  | 8 ++++++++
 arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/s32g274a-evb.dts b/arch/arm64/boot/dts/freescale/s32g274a-evb.dts
index 3aec05de0842..9118d8d2ee01 100644
--- a/arch/arm64/boot/dts/freescale/s32g274a-evb.dts
+++ b/arch/arm64/boot/dts/freescale/s32g274a-evb.dts
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (c) 2021 SUSE LLC
+ * Copyright (c) 2019-2021 NXP
  */
 
 /dts-v1/;
@@ -18,6 +19,13 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	/* 4GiB RAM */
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0 0x80000000>,
+		      <0x8 0x80000000 0 0x80000000>;
+	};
 };
 
 /* UART (J58) to Micro USB port */
diff --git a/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
index ed3f23babdca..e05ee854cdf5 100644
--- a/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
+++ b/arch/arm64/boot/dts/freescale/s32g274a-rdb2.dts
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (c) 2021 SUSE LLC
+ * Copyright (c) 2019-2021 NXP
  */
 
 /dts-v1/;
@@ -19,6 +20,13 @@ aliases {
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	/* 4GiB RAM */
+	memory@80000000 {
+		device_type = "memory";
+		reg = <0x0 0x80000000 0 0x80000000>,
+		      <0x8 0x80000000 0 0x80000000>;
+	};
 };
 
 /* UART (J2) to Micro USB port */
-- 
2.30.0

[PATCH v2 8/8] MAINTAINERS: add an entry for NXP S32G boards

[Chester Lin]

Add a new entry for the maintenance of NXP S32G DT files.

Signed-off-by: Chester Lin <clin@suse.com>
---
Changes in v2:
- Add information of reviewers.

 MAINTAINERS | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 5a61cb2d0cd4..6f2a3f8ae88e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2308,6 +2308,14 @@ F:	arch/arm/boot/dts/nuvoton-wpcm450*
 F:	arch/arm/mach-npcm/wpcm450.c
 F:	drivers/*/*wpcm*
 
+ARM/NXP S32G ARCHITECTURE
+M:	Chester Lin <clin@suse.com>
+R:	Andreas Färber <afaerber@suse.de>
+R:	Matthias Brugger <mbrugger@suse.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm64/boot/dts/freescale/s32g*.dts*
+
 ARM/OPENMOKO NEO FREERUNNER (GTA02) MACHINE SUPPORT
 L:	openmoko-kernel@lists.openmoko.org (subscribers-only)
 S:	Orphan
-- 
2.30.0

Re: [PATCH v2 2/8] dt-bindings: serial: fsl-linflexuart: convert to json-schema format

[Rob Herring]

On Wed, 08 Sep 2021 14:45:22 +0800, Chester Lin wrote:
> Convert the FSL LINFlexD UART binding to json-schema.
> 
> Signed-off-by: Chester Lin <clin@suse.com>
> Reviewed-by: Andreas Färber <afaerber@suse.de>
> ---
> Changes in v2:
> - Drop the specific description "S32V234 SoC".
> - Fill my name in the maintainer field. I tried to contact the authors
>   of fsl,s32-linflexuart.txt but got no response.
> 
>  .../bindings/serial/fsl,s32-linflexuart.txt   | 22 ---------
>  .../bindings/serial/fsl,s32-linflexuart.yaml  | 46 +++++++++++++++++++
>  2 files changed, 46 insertions(+), 22 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
>  create mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCH v2 3/8] dt-bindings: serial: fsl-linflexuart: add compatible for S32G2

[Rob Herring]

On Wed, 08 Sep 2021 14:45:23 +0800, Chester Lin wrote:
> Add a compatible string for the uart binding of NXP S32G2 platforms. Here
> we use "s32v234-linflexuart" as fallback since the current linflexuart
> driver can still work on S32G2.
> 
> Signed-off-by: Chester Lin <clin@suse.com>
> ---
> Changes in v2:
> - Remove redundant minItems/maxItems from compatible properties.
> - Remove the redundant example.
> - Rename the vendor string to "nxp," for s32g2.
> 
>  .../devicetree/bindings/serial/fsl,s32-linflexuart.yaml     | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCH v2 0/8] arm64: dts: initial NXP S32G2 support

[Shawn Guo]

On Wed, Sep 08, 2021 at 02:45:20PM +0800, Chester Lin wrote:
> Hello,
> 
> Here I'd like to propose a patchset, which is initial upstream support for NXP
> S32G2. S32G is a processor family developed by NXP for automotive solutions,
> such as vehicle networking and automotive high-performance processing. This
> series focuses on S32G2, which is the latest generation we can find at the
> moment. As the first round to support S32G2, this patchset only enables basic
> components and interfaces the SoC must have while kernel booting, which aims
> to have minimum hardware enablement for these two boards, S32G-VNP-EVB and
> S32G-VNP-RDB2. The concepts of how these boards work are originated from the
> downstream kernel tree[1] developed by NXP, which provides lots of details
> about the SoC S32G274A and its integrated boards. This series has been
> verified with downstream ATF[2] & U-Boot[3] based on the ATF boot flow.
> 
> Thanks,
> Chester
> 
> [1] https://source.codeaurora.org/external/autobsps32/linux/
> [2] https://source.codeaurora.org/external/autobsps32/arm-trusted-firmware/
> [3] https://source.codeaurora.org/external/autobsps32/u-boot/
> 
> Changes in v2:
> - dt-bindings:
>   - Rename the compatible vendor string to "nxp," for s32g2.
>   - Drop the specific description "S32V234 SoC".
>   - Fill my name in the maintainer field. I tried to contact the authors
>     of fsl,s32-linflexuart.txt but got no response.
>   - Remove redundant minItems/maxItems from compatible properties.
>   - Remove the redundant example from fsl,s32-linflexuart.yaml.
> - dtsi/dts:
>   - Add a SoC description in s32g2.dtsi.
>   - Add an interrupt-affinity to the pmu node.
>   - Move the psci node into the "/firmware" node.
>   - Remove the redundant properties and white lines in DT.
>   - Remove the wrong interrupt specifier from the gic node.
>   - Specify the range and cell-size of /soc [0 - 4 GiB].
>   - Correct the reserved size of GICR to 512Kbytes [0x80000].
>   - Add new Signed-off-by to the DT uart patch.
>   - Fix copyright strings.
>   - Revise reg properties based on new cell-size.
>   - Move the serial/uart aliases from the SoC .dtsi to board .dts files.
>   - Correct the model string of RDB2.
>   - Add comments for the uart markings on PCB.
>   - Adjust RAM size comments of memory nodes.
>   - Convert reg addresses of memory nodes into hex format.
> - MAINTAINERS
>   - Add information of reviewers.
> 
> Chester Lin (8):
>   dt-bindings: arm: fsl: add NXP S32G2 boards
>   dt-bindings: serial: fsl-linflexuart: convert to json-schema format
>   dt-bindings: serial: fsl-linflexuart: add compatible for S32G2
>   arm64: dts: add NXP S32G2 support
>   arm64: dts: s32g2: add serial/uart support
>   arm64: dts: s32g2: add VNP-EVB and VNP-RDB2 support
>   arm64: dts: s32g2: add memory nodes for evb and rdb2
>   MAINTAINERS: add an entry for NXP S32G boards

Applied all, thanks!