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meta-ti/recipes-kernel/linux/cmem.inc
Jacob Stiffler a6afbc2e89 linux/cmem.inc: Support reserving memory for CMEM.
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>
2015-05-19 15:30:05 -04:00

24 lines
613 B
PHP

SRC_URI += "file://cmem.dtsi"
CMEM_BASE ?= ""
CMEM_SIZE ?= ""
do_setup_cmem() {
if [ ! -z "${CMEM_BASE}" ]
then
cp ${WORKDIR}/cmem.dtsi ${S}/arch/arm/boot/dts/${MACHINE}-cmem.dtsi
sed -i -e "s|__CMEM_BASE__|${CMEM_BASE}|g" \
-e "s|__CMEM_SIZE__|${CMEM_SIZE}|g" \
${S}/arch/arm/boot/dts/${MACHINE}-cmem.dtsi
for dtb in ${KERNEL_DEVICETREE}
do
dts=`echo $dtb | sed -e 's|dtb$|dts|'`
echo "#include \"${MACHINE}-cmem.dtsi\"" >> ${S}/arch/arm/boot/dts/$dts
done
fi
}
do_patch[postfuncs] += "do_setup_cmem"