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riscv: dts: Add dma-channels property and modify compatible 

Add dma-channels property, then we can determine how many channels there
by device tree, in addition, we add the pdma versioning scheme for
compatible.

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Zong Li 2022-03-28 17:52:23 +08:00 committed by Palmer Dabbelt
parent 7da9ca3f5b
commit 6f6fa9cede
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1 changed files with 2 additions and 1 deletions
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arch/riscv/boot/dts/sifive/fu540-c000.dtsi
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@ -168,11 +168,12 @@ uart0: serial@10010000 {
status = "disabled";
};
dma: dma@3000000 {
compatible = "sifive,fu540-c000-pdma";
compatible = "sifive,fu540-c000-pdma", "sifive,pdma0";
reg = <0x0 0x3000000 0x0 0x8000>;
interrupt-parent = <&plic0>;
interrupts = <23>, <24>, <25>, <26>, <27>, <28>, <29>,
<30>;
dma-channels = <4>;
#dma-cells = <1>;
};
uart1: serial@10011000 {