Eric Lee / smarc-ti-linux-kernel

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Commit 94bda1f59cd3e88573a2eb1f194e22cad3015e9b

Authored by Andrew F. Davis
Committed by Suman Anna
1 parent 9c754c8ad1
Exists in smarct4x-processor-sdk-linux-02.00.01 and in 3 other branches processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-02.00.01, smarct4x-800-processor-sdk-linux-02.00.01

ARM: dts: k2g-evm: Add a common DSP shared memory CMA 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 K2 Galileo 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 properly for the DSP processor.

Signed-off-by: Andrew F. Davis <afd@ti.com>
[s-anna@ti.com: correct CMA pool addresses]
Signed-off-by: Suman Anna <s-anna@ti.com>

Showing 1 changed file with 16 additions and 0 deletions Side-by-side Diff

arch/arm/boot/dts/k2g-evm.dts
Diff comments   View file @ 94bda1f
... ... @@ -25,6 +25,18 @@
25 25 reg = <0x00000008 0x00000000 0x00000000 0x80000000>;
26 26 };
27 27  
  28 + reserved-memory {
  29 + #address-cells = <2>;
  30 + #size-cells = <2>;
  31 + ranges;
  32 +
  33 + dsp_common_cma_pool: dsp_common_cma_pool {
  34 + compatible = "shared-dma-pool";
  35 + reg = <0x00000008 0x1f800000 0x00000000 0x800000>;
  36 + reusable;
  37 + };
  38 + };
  39 +
28 40 mmc0_reg: fixedregulator-mmc0 {
29 41 compatible = "regulator-fixed";
30 42 regulator-name = "mmc0_fixed";
... ... @@ -289,5 +301,9 @@
289 301 &usb0 {
290 302 dr_mode = "host";
291 303 status = "okay";
  304 +};
  305 +
  306 +&dsp0 {
  307 + memory-region = <&dsp_common_cma_pool>;
292 308 };