From 960432010156d21145a5ae2648d504b1670fc5c9 Mon Sep 17 00:00:00 2001 From: Paul Kocialkowski Date: Fri, 7 Sep 2018 00:24:39 +0200 Subject: [PATCH] ARM: dts: sun5i: Add Video Engine and reserved memory nodes This adds nodes for the Video Engine and the associated reserved memory for sun5i-based platforms. Up to 96 MiB of memory are dedicated to the CMA pool. The VPU can only map the first 256 MiB of DRAM, so the reserved memory pool has to be located in that area. Following Allwinner's decision in downstream software, the last 96 MiB of the first 256 MiB of RAM are reserved for this purpose. Signed-off-by: Paul Kocialkowski Acked-by: Maxime Ripard Signed-off-by: Maxime Ripard --- arch/arm/boot/dts/sun5i.dtsi | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi index 8bfb366..9cd65c4 100644 --- a/arch/arm/boot/dts/sun5i.dtsi +++ b/arch/arm/boot/dts/sun5i.dtsi @@ -108,6 +108,21 @@ }; }; + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + /* Address must be kept in the lower 256 MiBs of DRAM for VE. */ + cma_pool: cma@4a000000 { + compatible = "shared-dma-pool"; + size = <0x6000000>; + alloc-ranges = <0x4a000000 0x6000000>; + reusable; + linux,cma-default; + }; + }; + soc@1c00000 { compatible = "simple-bus"; #address-cells = <1>; @@ -294,6 +309,17 @@ }; }; + video-codec@1c0e000 { + compatible = "allwinner,sun5i-a13-video-engine"; + reg = <0x01c0e000 0x1000>; + clocks = <&ccu CLK_AHB_VE>, <&ccu CLK_VE>, + <&ccu CLK_DRAM_VE>; + clock-names = "ahb", "mod", "ram"; + resets = <&ccu RST_VE>; + interrupts = <53>; + allwinner,sram = <&ve_sram 1>; + }; + mmc0: mmc@1c0f000 { compatible = "allwinner,sun5i-a13-mmc"; reg = <0x01c0f000 0x1000>; -- 2.7.4