[RFC V1 02/12] dts: arm64: mt8183: Add ISP Pass 1 shared memory node

Jungo Lin
2019-03-28T09:56:37Z

This patch adds a shared memory region used on mt8183 for
exchanging tuning data between co-processor and the
Pass 1 unit of the camera ISP system.

Signed-off-by: Jungo Lin <jungo.lin@mediatek.com>
---
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 13 +++++++++++++
1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 75c4881..c73f7ff 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -133,6 +133,19 @@
clock-output-names = "clk26m";
};

+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ reserve-memory-cam_smem {
+ compatible = "mediatek,reserve-memory-cam_smem";
+ no-map;
+ size = <0 0x01400000>; /*20 MB share mem size */
+ alignment = <0 0x1000>;
+ alloc-ranges = <0 0x40000000 0 0x10000000>;
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupt-parent = <&gic>;
--
1.9.1