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linux/cmem.inc: Support reserving memory for CMEM.

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To reserve contiguous memory for CMEM:
* include the "recipes-kernel/linux/cmem.inc"
* Set CMEM_BASE and CMEM_SIZE to the physical memory address and size,
  respectively, to reserve for CMEM.

Currently limited to reserving a single memory region used to create
a single buffer pool of a single buffer.

Signed-off-by: Jacob Stiffler <j-stiffler@ti.com>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>
This commit is contained in:
Jacob Stiffler
2015-05-20 00:55:27 +00:00
committed by Denys Dmytriyenko
parent 8a90b7e948
commit 3ae905f31e
2 changed files with 47 additions and 0 deletions
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recipes-kernel/linux/files/cmem.dtsi
+24
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@@ -0,0 +1,24 @@
/ {
reserved-memory {
cmem_block_mem_0: cmem_block_mem@__CMEM_BASE__ {
reg = <0x__CMEM_BASE__ 0x__CMEM_SIZE__>;
no-map;
status = "okay";
};
};
cmem {
compatible = "ti,cmem";
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
cmem_block_0: cmem_block@0 {
reg = <0>;
memory-region = <&cmem_block_mem_0>;
cmem-buf-pools = <1 0x__CMEM_SIZE__>;
};
};
};