[PATCH] arm64: dts: synaptics: add DT for AS370-RDK

Add a basic support for AS370-RDK board based on the AS370 SoC. We can
get a basic shell on the uart console now.

Signed-off-by: Jisheng Zhang <redacted>
---
Hi Arnd,

If it's too late, I will add it in a PR for 5.16 in next development window.

Thanks

 arch/arm64/boot/dts/synaptics/Makefile      |  1 +
 arch/arm64/boot/dts/synaptics/as370-rdk.dts | 29 +++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 arch/arm64/boot/dts/synaptics/as370-rdk.dts

diff --git a/arch/arm64/boot/dts/synaptics/Makefile b/arch/arm64/boot/dts/synaptics/Makefile
index de71ddda6835..c1c4f6c040b3 100644
--- a/arch/arm64/boot/dts/synaptics/Makefile
+++ b/arch/arm64/boot/dts/synaptics/Makefile

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 # Berlin SoC Family
+dtb-$(CONFIG_ARCH_BERLIN) += as370-rdk.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb

diff --git a/arch/arm64/boot/dts/synaptics/as370-rdk.dts b/arch/arm64/boot/dts/synaptics/as370-rdk.dts
new file mode 100644
index 000000000000..6f5c37c98be6
--- /dev/null
+++ b/arch/arm64/boot/dts/synaptics/as370-rdk.dts

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2018-2021 Synaptics Incorporated
+ *
+ * Author: Jisheng Zhang <jszhang@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "as370.dtsi"
+
+/ {
+	model = "Synaptics AS370 RDK";
+	compatible = "syna,as370-rdk", "syna,as370";
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@1000000 {
+		device_type = "memory";
+		/* the first 16MB is for firmwares' usage */
+		reg = <0 0x01000000 0 0x1f000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};

-- 
2.33.0

On 20/08/2021 11:31, Jisheng Zhang wrote:

There is no such binding. You need to update the bindings file (first
patch in the series).


Best regards,
Krzysztof

On Fri, 20 Aug 2021 11:59:30 +0200
Krzysztof Kozlowski [off-list ref] wrote:

CAUTION: Email originated externally, do not click links or open attachments unless you recognize the sender and know the content is safe.


On 20/08/2021 11:31, Jisheng Zhang wrote:

quoted

Add a basic support for AS370-RDK board based on the AS370 SoC. We can
get a basic shell on the uart console now.

Signed-off-by: Jisheng Zhang <redacted>
---
Hi Arnd,

If it's too late, I will add it in a PR for 5.16 in next development window.

Thanks

 arch/arm64/boot/dts/synaptics/Makefile      |  1 +
 arch/arm64/boot/dts/synaptics/as370-rdk.dts | 29 +++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 arch/arm64/boot/dts/synaptics/as370-rdk.dts

diff --git a/arch/arm64/boot/dts/synaptics/Makefile b/arch/arm64/boot/dts/synaptics/Makefile
index de71ddda6835..c1c4f6c040b3 100644
--- a/arch/arm64/boot/dts/synaptics/Makefile
+++ b/arch/arm64/boot/dts/synaptics/Makefile

@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: GPL-2.0
 # Berlin SoC Family
+dtb-$(CONFIG_ARCH_BERLIN) += as370-rdk.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb

diff --git a/arch/arm64/boot/dts/synaptics/as370-rdk.dts b/arch/arm64/boot/dts/synaptics/as370-rdk.dts
new file mode 100644
index 000000000000..6f5c37c98be6
--- /dev/null
+++ b/arch/arm64/boot/dts/synaptics/as370-rdk.dts

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (C) 2018-2021 Synaptics Incorporated
+ *
+ * Author: Jisheng Zhang <jszhang@kernel.org>
+ */
+
+/dts-v1/;
+
+#include "as370.dtsi"
+
+/ {
+     model = "Synaptics AS370 RDK";
+     compatible = "syna,as370-rdk", "syna,as370";  

There is no such binding. You need to update the bindings file (first
patch in the series).

This is my plan ;) In fact, "berlin4ct" related binding is also missing.
I want to convert Documentation/devicetree/bindings/arm/syna.txt
to yaml, then add missing bindings. But it's too late for 5.15,

If it's fine to keep as370.dtsi without board user(s), we can drop
this patch. I will solve this issue in next development window.

Thanks

Best regards,
Krzysztof

On Fri, Aug 20, 2021 at 12:27 PM Jisheng Zhang
[off-list ref] wrote:

On Fri, 20 Aug 2021 11:59:30 +0200 Krzysztof Kozlowski [off-list ref] wrote:

quoted

On 20/08/2021 11:31, Jisheng Zhang wrote:

There is no such binding. You need to update the bindings file (first
patch in the series).

This is my plan ;) In fact, "berlin4ct" related binding is also missing.
I want to convert Documentation/devicetree/bindings/arm/syna.txt
to yaml, then add missing bindings. But it's too late for 5.15,

If it's fine to keep as370.dtsi without board user(s), we can drop
this patch. I will solve this issue in next development window.

Yes, doing it for the next cycle is ok.

        Arnd

On 20/08/2021 21:55, Arnd Bergmann wrote:

On Fri, Aug 20, 2021 at 12:27 PM Jisheng Zhang
[off-list ref] wrote:

quoted

On Fri, 20 Aug 2021 11:59:30 +0200 Krzysztof Kozlowski [off-list ref] wrote:

quoted

On 20/08/2021 11:31, Jisheng Zhang wrote:

There is no such binding. You need to update the bindings file (first
patch in the series).

This is my plan ;) In fact, "berlin4ct" related binding is also missing.
I want to convert Documentation/devicetree/bindings/arm/syna.txt
to yaml, then add missing bindings. But it's too late for 5.15,

If it's fine to keep as370.dtsi without board user(s), we can drop
this patch. I will solve this issue in next development window.

Yes, doing it for the next cycle is ok.

Hi Arnd and Jisheng,

This patch was discussed in Aug 2021 and since then there was no resend.
I assume that AD370 will not get a board, so I propose to pick up my
removal patch:
https://lore.kernel.org/all/YRbDNInfG7caSr2r@robh.at.kernel.org/

I will resend it.

Best regards,
Krzysztof