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authorAndrew F. Davis <afd@ti.com>2017-08-12 20:58:10 +0300
committerSantosh Shilimkar <ssantosh@kernel.org>2017-08-12 20:58:10 +0300
commit786d7114d25ea990792bc4cb9a0e725a7ac78f81 (patch)
treeb930cdcf3e8088d01d0719d21f7e8301994e071a /arch/arm/boot/dts/keystone-k2g-evm.dts
parenta1b7cb92b488abaa91e14722d954fc318aee0e26 (diff)
downloadlinux-786d7114d25ea990792bc4cb9a0e725a7ac78f81.tar.xz
ARM: dts: keystone-k2g-evm: Add and enable DSP CMA memory pool
A CMA memory pool reserved memory node is added, and is attached to the DSP node through the 'memory-region' property on the K2G EVM board. This area will be used for allocating virtio rings and buffers. This node allows the DSP Memory Protection and Address Extension (MPAX) module to be configured properly for the DSP processor, and matches the values used on the other Keystone 2 boards for software compatibility. The reserved memory node and the user DSP node are also marked okay to enable the DSP on the 66AK2G EVM board. Signed-off-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts/keystone-k2g-evm.dts')
-rw-r--r--arch/arm/boot/dts/keystone-k2g-evm.dts18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/keystone-k2g-evm.dts b/arch/arm/boot/dts/keystone-k2g-evm.dts
index f47f95d8bf1c..f462f1043531 100644
--- a/arch/arm/boot/dts/keystone-k2g-evm.dts
+++ b/arch/arm/boot/dts/keystone-k2g-evm.dts
@@ -25,6 +25,19 @@
reg = <0x00000008 0x00000000 0x00000000 0x80000000>;
};
+ 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";
+ };
+ };
+
vcc3v3_dcin_reg: fixedregulator-vcc3v3-dcin {
compatible = "regulator-fixed";
regulator-name = "mmc0_fixed";
@@ -94,3 +107,8 @@
vmmc-supply = <&vcc3v3_dcin_reg>; /* VCC3V3_EMMC is connected to VCC3V3_DCIN */
status = "okay";
};
+
+&dsp0 {
+ memory-region = <&dsp_common_memory>;
+ status = "okay";
+};