[PATCH v2 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 <to...@tomeuvizoso.net>
---
 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