[RFC PATCH V1 2/6] dts: arm64: mt8183: Add DIP shared memory node

Frederic Chen
2019-04-17T10:45:07Z

This patch adds a shared memory region used on mt8183 for
exchanging tuning data between co-processor and
Digital Image Processing(DIP) unit.

Signed-off-by: Frederic Chen <frederic.chen-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org>
---
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 c3a516e63141..aec68c6b4571 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -134,6 +134,19 @@
clock-output-names = "clk26m";
};

+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ reserve-memory-dip_smem {
+ compatible = "mediatek,reserve-memory-dip_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>;
--
2.18.0