[PATCH 1/5] arm64: dts: ti: k3-j722s-ti-ipc-firmware: Add memory pool for DSP i/o buffers

[Tomeu Vizoso]

This memory region is used by the DRM/accel driver to allocate addresses
for buffers that are used for communication with the DSP cores and for
their intermediate results.

Signed-off-by: Tomeu Vizoso <tomeu@xxxxxxxxxxxxxxx>
---
 arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
index 3fbff927c4c08bce741555aa2753a394b751144f..b80d2a5a157ad59eaed8e57b22f1f4bce4765a85 100644
--- a/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j722s-ti-ipc-firmware.dtsi
@@ -42,6 +42,11 @@ c7x_0_memory_region: memory@a3100000 {
 		no-map;
 	};
 
+	c7x_iova_pool: iommu-pool@a7000000 {
+		reg = <0x00 0xa7000000 0x00 0x18200000>;
+		no-map;
+	};
+
 	c7x_1_dma_memory_region: memory@a4000000 {
 		compatible = "shared-dma-pool";
 		reg = <0x00 0xa4000000 0x00 0x100000>;
@@ -151,13 +156,15 @@ &main_r5fss0_core0 {
 &c7x_0 {
 	mboxes = <&mailbox0_cluster2 &mbox_c7x_0>;
 	memory-region = <&c7x_0_dma_memory_region>,
-			<&c7x_0_memory_region>;
+			<&c7x_0_memory_region>,
+			<&c7x_iova_pool>;
 	status = "okay";
 };
 
 &c7x_1 {
 	mboxes = <&mailbox0_cluster3 &mbox_c7x_1>;
 	memory-region = <&c7x_1_dma_memory_region>,
-			<&c7x_1_memory_region>;
+			<&c7x_1_memory_region>,
+			<&c7x_iova_pool>;
 	status = "okay";
 };

-- 
2.52.0