I want to enable the DMA for MCSPI0. I have modifyied the main_spi0 node in the arch/arm64/boot/dts/ti/k3-am62-main.dtsi file as the following:
main_spi0: spi@20100000 {
compatible = "ti,am654-mcspi", "ti,omap4-mcspi";
reg = <0x00 0x20100000 0x00 0x400>;
interrupts = <GIC_SPI 172 IRQ_TYPE_LEVEL_HIGH>;
ti,spi-num-cs = <4>;
#address-cells = <1>;
#size-cells = <0>;
power-domains = <&k3_pds 141 TI_SCI_PD_EXCLUSIVE>;
clocks = <&k3_clks 141 0>;
dmas = <&main_pktdma 0xc300 0>, <&main_pktdma 0x4300 0>;
dma-names = "tx0", "rx0";
};
When I used the rebuilt dtb file[tl62x-evm.dtb], when linux OS boot, there were some errors about PSI-L:
[ 0.897621] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897638] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897644] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897650] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897656] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897662] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897667] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897673] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897679] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897685] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897691] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897696] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897702] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897708] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897714] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897720] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897725] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897731] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897737] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897743] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897749] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897755] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897760] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897766] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897772] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897777] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897783] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897789] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897795] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897800] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897806] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897812] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897817] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897823] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897829] ti-udma 485c0000.dma-controller: No configuration for psi-l thread 0x4300
[ 0.897834] ti-udma 485c0000.dma-controller: get channel fail in udma_of_xlate.
Could Some gugs help me fixed it?
Tks!
Johnny Liu
