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-rw-r--r--meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-m3ulcb-ADSP-enable.patch30
1 files changed, 30 insertions, 0 deletions
diff --git a/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-m3ulcb-ADSP-enable.patch b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-m3ulcb-ADSP-enable.patch
new file mode 100644
index 0000000..5e54109
--- /dev/null
+++ b/meta-rcar-gen3/recipes-kernel/linux/linux-renesas/0004-m3ulcb-ADSP-enable.patch
@@ -0,0 +1,30 @@
+diff --git a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+index a1f3c244b83e..b08e94430bea 100644
+--- a/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
++++ b/arch/arm64/boot/dts/renesas/r8a7796-m3ulcb.dts
+@@ -49,6 +49,13 @@
+ reg = <0x00000000 0x54000000 0x0 0x03000000>;
+ };
+
++ /* For Audio DSP */
++ adsp_reserved: linux,adsp {
++ compatible = "shared-dma-pool";
++ reusable;
++ reg = <0x00000000 0x57000000 0x0 0x01000000>;
++ };
++
+ /* global autoconfigured region for contiguous allocations */
+ linux,cma {
+ compatible = "shared-dma-pool";
+@@ -388,6 +395,11 @@
+ status = "okay";
+ };
+
++&adsp {
++ status = "okay";
++ memory-region = <&adsp_reserved>;
++};
++
+ &scif2 {
+ pinctrl-0 = <&scif2_pins>;
+ pinctrl-names = "default";