From mboxrd@z Thu Jan 1 00:00:00 1970 From: paul.kocialkowski@bootlin.com (Paul Kocialkowski) Date: Tue, 10 Jul 2018 10:01:13 +0200 Subject: [PATCH v5 21/22] ARM: dts: sun8i-a33: Add Video Engine and reserved memory nodes In-Reply-To: <20180710080114.31469-1-paul.kocialkowski@bootlin.com> References: <20180710080114.31469-1-paul.kocialkowski@bootlin.com> Message-ID: <20180710080114.31469-22-paul.kocialkowski@bootlin.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This adds nodes for the Video Engine and the associated reserved memory for the A33. 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 --- arch/arm/boot/dts/sun8i-a33.dtsi | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi index 8d278ee001e9..9485e0f5750c 100644 --- a/arch/arm/boot/dts/sun8i-a33.dtsi +++ b/arch/arm/boot/dts/sun8i-a33.dtsi @@ -181,6 +181,21 @@ reg = <0x40000000 0x80000000>; }; + 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 at 4a000000 { + compatible = "shared-dma-pool"; + size = <0x6000000>; + alloc-ranges = <0x4a000000 0x6000000>; + reusable; + linux,cma-default; + }; + }; + sound: sound { compatible = "simple-audio-card"; simple-audio-card,name = "sun8i-a33-audio"; @@ -245,6 +260,20 @@ }; }; + vpu: video-codec at 01c0e000 { + compatible = "allwinner,sun8i-a33-video-engine"; + reg = <0x01c0e000 0x1000>; + + clocks = <&ccu CLK_BUS_VE>, <&ccu CLK_VE>, + <&ccu CLK_DRAM_VE>; + clock-names = "ahb", "mod", "ram"; + + resets = <&ccu RST_BUS_VE>; + + interrupts = ; + allwinner,sram = <&ve_sram 1>; + }; + crypto: crypto-engine at 1c15000 { compatible = "allwinner,sun4i-a10-crypto"; reg = <0x01c15000 0x1000>; -- 2.17.1