From 620eb21060879c653e1d2d72e83c53efa52374fc Mon Sep 17 00:00:00 2001 From: Sam Nelson Date: Sun, 30 Jul 2017 20:50:05 -0700 Subject: [PATCH] ARM: dts: keystone-k2hk-evm: Add and enable common DSP CMA memory pool A common CMA memory pool reserved memory node is added, and is attached to all the DSP nodes through the 'memory-region' property on the 66AK2H EVM board. This area will be used for allocating virtio rings and buffers. The common node allows the DSP Memory Protection and Address Extension (MPAX) module to be configured uniformly across all the DSP processors. The reserved memory node and all the user DSP nodes are also marked okay to enable the DSPs on the 66AK2K EVM board. Signed-off-by: Sam Nelson Signed-off-by: Suman Anna Signed-off-by: Santosh Shilimkar --- arch/arm/boot/dts/keystone-k2hk-evm.dts | 53 +++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/arch/arm/boot/dts/keystone-k2hk-evm.dts b/arch/arm/boot/dts/keystone-k2hk-evm.dts index 2156ff92d08f..6dd13b98aaba 100644 --- a/arch/arm/boot/dts/keystone-k2hk-evm.dts +++ b/arch/arm/boot/dts/keystone-k2hk-evm.dts @@ -16,6 +16,19 @@ compatible = "ti,k2hk-evm", "ti,k2hk", "ti,keystone"; model = "Texas Instruments Keystone 2 Kepler/Hawking EVM"; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + dsp_common_memory: dsp-common-memory@81f800000 { + compatible = "shared-dma-pool"; + reg = <0x00000008 0x1f800000 0x00000000 0x800000>; + reusable; + status = "okay"; + }; + }; + soc { clocks { refclksys: refclksys { @@ -184,3 +197,43 @@ reg = <1>; }; }; + +&dsp0 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp1 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp2 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp3 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp4 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp5 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp6 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; + +&dsp7 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; -- 2.20.1