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k210: dts: align plic node with Linux

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The Linux PLIC interrupt-controller driver actually initializes the hart
context registers in the PLIC driver exactly in the same order as
specified in the interrupts-extended device tree property. See the device
tree binding [1].

The ordering of the interrupts is therefore essential in order to
configure the PLIC correctly.

Fix the order so that we will have sane IRQ behavior when booting Linux
with the u-boot device tree.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml

Signed-off-by: Niklas Cassel <niklas.cassel@wdc.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
This commit is contained in:
Niklas Cassel
2022-03-01 10:35:42 +00:00
committed by Leo Yu-Chi Liang
parent a6c86ec2d6
commit 530f29cba5
1 changed files with 2 additions and 2 deletions
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4
arch/riscv/dts/k210.dtsi
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@@ -134,8 +134,8 @@
compatible = "canaan,k210-plic", "sifive,plic-1.0.0", "riscv,plic0";
reg = <0xC000000 0x4000000>;
interrupt-controller;
interrupts-extended = <&cpu0_intc 9>, <&cpu0_intc 11>,
<&cpu1_intc 9>, <&cpu1_intc 11>;
interrupts-extended = <&cpu0_intc 11>, <&cpu0_intc 9>,
<&cpu1_intc 11>, <&cpu1_intc 9>;
riscv,ndev = <65>;
riscv,max-priority = <7>;
};