[PATCH v2 0/2] sunxi: Add A100 syscon nodes

[PATCH v2 0/2] sunxi: Add A100 syscon nodes

[Cody Eksal]

Hello! Here is a V2 of
https://msgid.link/20241202-a100-syscon-v1-0-86c6524f24d7@epochal.quest.
Only changes here are fixing missing newlines between child nodes and
rebasing on 6.13-rc3.

***

Here are some very small patches to add syscon nodes to the A100's
device tree. These had not been added yet, as they hadn't been needed up
to this point. However, Parthiban and I have been working on patch
series in parallel that require either the syscon or the SRAM nodes it
is responsible for; specifically my patches add support for the A100's
ethernet controller, while Parthiban has been working hard on bringing
up the Display Engine.

Thanks as always!
- Cody

Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>
---
Changes in v2:
- Add missing empty newlines between syscon child nodes
- Rebase on v6.13-rc3
- Link to v1: https://lore.kernel.org/r/20241202-a100-syscon-v1-0-86c6524f24d7@epochal.quest

---
Cody Eksal (2):
      dt-bindings: sram: sunxi-sram: Add A100 compatible
      arm64: dts: allwinner: a100: Add syscon nodes

 .../sram/allwinner,sun4i-a10-system-control.yaml   |  4 ++-
 arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi     | 33 ++++++++++++++++++++++
 2 files changed, 36 insertions(+), 1 deletion(-)
---
base-commit: 78d4f34e2115b517bcbfe7ec0d018bbbb6f9b0b8
change-id: 20241126-a100-syscon-7316bea62e42

Best regards,
-- 
Cody Eksal <masterr3c0rd@epochal.quest>

[PATCH v2 1/2] dt-bindings: sram: sunxi-sram: Add A100 compatible

[Cody Eksal]

The Allwinner A100 has a system configuration block similar to that of
the A64 and H6. Add a compatible for it.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>
---
 .../devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml  | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
index d9322704f3588e036280d08deaf59972f1dfeb7f..a7236f7db4ec34d44c4e2268f76281ef8ed83189 100644
--- a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
+++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml
@@ -47,7 +47,9 @@ properties:
           - const: allwinner,sun8i-v3s-system-control
           - const: allwinner,sun8i-h3-system-control
       - items:
-          - const: allwinner,sun50i-h6-system-control
+          - enum:
+              - allwinner,sun50i-a100-system-control
+              - allwinner,sun50i-h6-system-control
           - const: allwinner,sun50i-a64-system-control
 
   reg:

-- 
2.47.1

[PATCH v2 2/2] arm64: dts: allwinner: a100: Add syscon nodes

[Cody Eksal]

The Allwinner A100 has a system configuration block, denoted as SYS_CFG
in the user manual's memory map. It is undocumented in the manual, but
a glance at the vendor tree shows this block is similar to its
predecessors in the A64 and H6. The A100 also has 3 SRAM blocks: A1, A2,
and C. Add all of these to the SoC's device tree.

Reviewed-by: Parthiban Nallathambi <parthiban@linumiz.com>
Signed-off-by: Cody Eksal <masterr3c0rd@epochal.quest>
---
 arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 33 ++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
index 29ac7716c7a5284ccf8af675db9c7d016785f0ff..a24adba201af29a3a117222c67da5d269629fa47 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi
@@ -101,6 +101,39 @@ soc {
 		#size-cells = <1>;
 		ranges = <0 0 0 0x3fffffff>;
 
+		syscon: syscon@3000000 {
+			compatible = "allwinner,sun50i-a100-system-control",
+				     "allwinner,sun50i-a64-system-control";
+			reg = <0x03000000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			sram_a1: sram@20000 {
+				compatible = "mmio-sram";
+				reg = <0x00020000 0x4000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x00020000 0x4000>;
+			};
+
+			sram_c: sram@24000 {
+				compatible = "mmio-sram";
+				reg = <0x024000 0x21000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x024000 0x21000>;
+			};
+
+			sram_a2: sram@100000 {
+				compatible = "mmio-sram";
+				reg = <0x0100000 0x14000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x0100000 0x14000>;
+			};
+		};
+
 		ccu: clock@3001000 {
 			compatible = "allwinner,sun50i-a100-ccu";
 			reg = <0x03001000 0x1000>;

-- 
2.47.1

Re: [PATCH v2 0/2] sunxi: Add A100 syscon nodes

[Chen-Yu Tsai]

On Wed, 18 Dec 2024 09:01:17 -0400, Cody Eksal wrote:
> https://msgid.link/20241202-a100-syscon-v1-0-86c6524f24d7@epochal.quest.
> Only changes here are fixing missing newlines between child nodes and
> rebasing on 6.13-rc3.
> 
> ***
> 
> Here are some very small patches to add syscon nodes to the A100's
> device tree. These had not been added yet, as they hadn't been needed up
> to this point. However, Parthiban and I have been working on patch
> series in parallel that require either the syscon or the SRAM nodes it
> is responsible for; specifically my patches add support for the A100's
> ethernet controller, while Parthiban has been working hard on bringing
> up the Display Engine.
> 
> [...]

Applied to dt-for-6.14 in git@github.com:linux-sunxi/linux-sunxi.git, thanks!

[1/2] dt-bindings: sram: sunxi-sram: Add A100 compatible
      commit: 168b2b355f886db4230f10d24bc109b0b34c4708
[2/2] arm64: dts: allwinner: a100: Add syscon nodes
      commit: 53c54d9b9379e2a3eaec015556a51e47957a8d92

Best regards,
-- 
Chen-Yu Tsai <wens@csie.org>