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ARM: dts: sun4i-a10: Add Video Engine and reserved memory nodes
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This ass nodes for the Video Engine and the associated reserved memory
for the A10. 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
downstrean software, the last 96 MiB of the first 256 MiB of RAM are
reserved for this purpose.

Signed-off-by: Andreas Baierl <ichgeh@imkreisrum.de>
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rellla committed Sep 26, 2018
1 parent 2846113 commit ff11f4c
Showing 1 changed file with 26 additions and 0 deletions.
26 changes: 26 additions & 0 deletions arch/arm/boot/dts/sun4i-a10.dtsi
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};
};

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;
};
};

clocks {
#address-cells = <1>;
#size-cells = <1>;
Expand Down Expand Up @@ -407,6 +422,17 @@
};
};

video-codec@1c0e000 {
compatible = "allwinner,sun4i-a10-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,sun4i-a10-mmc";
reg = <0x01c0f000 0x1000>;
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