By default the SDK 8.1 does not have the UDMA PSIL threads needed for MCSPI instances. Add them and add the DMA properties needed for SPI slave functionality.

diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
index 70a028481..4af897173 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi
@@ -434,6 +434,8 @@
power-domains = <&k3_pds 270 TI_SCI_PD_EXCLUSIVE>;
#address-cells = <1>;
#size-cells = <0>;
+ dmas = <&main_udmap 0xc610>, <&main_udmap 0x4610>;
+ dma-names = "tx0", "rx0";
};

main_i2c0: i2c@2000000 {
diff --git a/drivers/dma/ti/k3-psil-j7200.c b/drivers/dma/ti/k3-psil-j7200.c
index 5ea63ea74..06ae1c1a2 100644
--- a/drivers/dma/ti/k3-psil-j7200.c
+++ b/drivers/dma/ti/k3-psil-j7200.c
@@ -164,6 +164,11 @@ static struct psil_ep j7200_dst_ep_map[] = {
/* SA2UL */
PSIL_SA2UL(0xf500, 1),
PSIL_SA2UL(0xf501, 1),
+ /* PDMA_SPI_G1 - SPI4 */
+ PSIL_PDMA_XY_PKT(0xc610),
+ PSIL_PDMA_XY_PKT(0xc611),
+ PSIL_PDMA_XY_PKT(0xc612),
+ PSIL_PDMA_XY_PKT(0xc613),
};