Thread (16 messages) 16 messages, 6 authors, 2020-12-05

Re: [PATCH v3 3/6] ARM: dts: sun8i: v3s: Add node for system control

From: Chen-Yu Tsai <hidden>
Date: 2020-12-03 04:30:00
Also in: linux-devicetree, linux-media, lkml

Hi,

On Mon, Nov 16, 2020 at 8:57 PM Martin Cerveny [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Allwinner V3s has system control and SRAM C1 region similar to H3.

Signed-off-by: Martin Cerveny <redacted>
---
 arch/arm/boot/dts/sun8i-v3s.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 0c7341676921..70193512c222 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -161,6 +161,20 @@ syscon: system-control@1c00000 {
                        #address-cells = <1>;
                        #size-cells = <1>;
                        ranges;
+
+                       sram_c: sram@1d00000 {
+                               compatible = "mmio-sram";
+                               reg = <0x01d00000 0x80000>;
How was this address derived? Did you check that there is actually SRAM here?

ChenYu
+                               #address-cells = <1>;
+                               #size-cells = <1>;
+                               ranges = <0 0x01d00000 0x80000>;
+
+                               ve_sram: sram-section@0 {
+                                       compatible = "allwinner,sun8i-v3s-sram-c1",
+                                                    "allwinner,sun4i-a10-sram-c1";
+                                       reg = <0x000000 0x80000>;
+                               };
+                       };
                };

                tcon0: lcd-controller@1c0c000 {
--
2.25.1


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