[RFC PATCH V0 2/7] dts: arm64: mt8183: Add ISP Pass 1 shared memory node

Frederic Chen
2019-02-05T06:44:19Z

From: Jungo Lin <jungo.lin@mediatek.com>

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>
Signed-off-by: Frederic Chen <frederic.chen@mediatek.com>
---
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index 63db9cc..3b85a6c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -109,6 +109,19 @@
};
};

+ 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>;
+ };
+ };
+
pmu-a53 {
compatible = "arm,cortex-a53-pmu";
interrupt-parent = <&gic>;
@@ -405,4 +418,5 @@
reg = <0 0x1a000000 0 0x1000>;
#clock-cells = <1>;
};
+
};
--
1.9.1