cmem: add special handling for dra72x variant

Signed-off-by: Denys Dmytriyenko <denys@ti.com>

2 files changed, 35 insertions, 1 deletions

diff --git a/recipes-kernel/linux/cmem.inc b/recipes-kernel/linux/cmem.inc
index b60909cc..d4edc607 100644
--- a/recipes-kernel/linux/cmem.inc
+++ b/recipes-kernel/linux/cmem.inc
@@ -4,17 +4,22 @@
 CMEM_MACHINE = "${MACHINE}"
 CMEM_MACHINE_am57xx-evm = "am571x am572x"
 CMEM_MACHINE_am57xx-hs-evm = "am571x am572x"
+CMEM_MACHINE_dra7xx-evm = "dra72x dra74x"
+CMEM_MACHINE_dra7xx-hs-evm = "dra72x dra74x"
 
 # Set cmem.dtsi per machine or machine variant
 CMEM_DTSI = "cmem.dtsi"
 CMEM_DTSI_am571x = "cmem-am571x.dtsi"
+CMEM_DTSI_dra72x = "cmem-dra72x.dtsi"
 
 # Split device trees between variants
 CMEM_DEVICETREE = "${KERNEL_DEVICETREE}"
 CMEM_DEVICETREE_am571x = "am571x-idk.dtb am571x-idk-lcd-osd.dtb am571x-idk-lcd-osd101t2587.dtb"
 CMEM_DEVICETREE_am572x = "am57xx-beagle-x15.dtb am57xx-beagle-x15-revb1.dtb am57xx-evm.dtb am57xx-evm-reva3.dtb am572x-idk.dtb \
                           am572x-idk-lcd-osd.dtb am572x-idk-lcd-osd101t2587.dtb"
-
+CMEM_DEVICETREE_dra72x = "dra72-evm.dtb dra72-evm-lcd-lg.dtb dra72-evm-lcd-osd.dtb dra72-evm-lcd-osd101t2587.dtb \
+                          dra72-evm-revc.dtb dra72-evm-revc-lcd-osd101t2045.dtb dra72-evm-revc-lcd-osd101t2587.dtb"
+CMEM_DEVICETREE_dra74x = "dra7-evm.dtb dra7-evm-lcd-lg.dtb dra7-evm-lcd-osd.dtb dra7-evm-lcd-osd101t2587.dtb"
 
 # Flag to enable CMEM injection
 RESERVE_CMEM ?= "0"
diff --git a/recipes-kernel/linux/files/dra7xx/cmem-dra72x.dtsi b/recipes-kernel/linux/files/dra7xx/cmem-dra72x.dtsi
new file mode 100644
index 00000000..ebd61296
--- /dev/null
+++ b/recipes-kernel/linux/files/dra7xx/cmem-dra72x.dtsi
@@ -0,0 +1,29 @@
+/ {
+        reserved-memory {
+                #address-cells = <2>;
+                #size-cells = <2>;
+                ranges;
+
+                cmem_block_mem_0: cmem_block_mem@a0000000 {
+                        reg = <0x0 0xa0000000 0x0 0x0c000000>;
+                        no-map;
+                        status = "okay";
+                };
+        };
+
+        cmem {
+                compatible = "ti,cmem";
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                #pool-size-cells = <2>;
+
+                status = "okay";
+
+                cmem_block_0: cmem_block@0 {
+                        reg = <0>;
+                        memory-region = <&cmem_block_mem_0>;
+                        cmem-buf-pools = <1 0x0 0x0c000000>;
+                };
+        };
+};