1*4882a593SmuzhiyunFrom 99cf8f37ceb1def9e7bbaccc395cf2275723e03d Mon Sep 17 00:00:00 2001
2*4882a593SmuzhiyunFrom: Peter Korsgaard <peter@korsgaard.com>
3*4882a593SmuzhiyunDate: Thu, 4 Nov 2021 22:15:13 +0100
4*4882a593SmuzhiyunSubject: [PATCH] arch/riscv/dts/sun20i-d1.dtsi: adjust plic compatible to
5*4882a593Smuzhiyun match opensbi
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunThe T-HEAD PLIC is by default not accessible from S-mode, and access must be
8*4882a593Smuzhiyunenabled by opensbi to make it accessible to Linux.
9*4882a593Smuzhiyun
10*4882a593SmuzhiyunThe DTB is used both by U-Boot and opensbi (but the PLIC node is ignored by
11*4882a593SmuzhiyunU-Boot), so change the compatible to match what opensbi expects to fix a
12*4882a593Smuzhiyuncrash during Linux boot:
13*4882a593Smuzhiyun
14*4882a593Smuzhiyunhttps://github.com/riscv-software-src/opensbi/commit/78c2b19218bd
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunSigned-off-by: Peter Korsgaard <peter@korsgaard.com>
17*4882a593Smuzhiyun---
18*4882a593Smuzhiyun arch/riscv/dts/sun20i-d1.dtsi | 2 +-
19*4882a593Smuzhiyun 1 file changed, 1 insertion(+), 1 deletion(-)
20*4882a593Smuzhiyun
21*4882a593Smuzhiyundiff --git a/arch/riscv/dts/sun20i-d1.dtsi b/arch/riscv/dts/sun20i-d1.dtsi
22*4882a593Smuzhiyunindex 280e0336d4..56d02c33b0 100644
23*4882a593Smuzhiyun--- a/arch/riscv/dts/sun20i-d1.dtsi
24*4882a593Smuzhiyun+++ b/arch/riscv/dts/sun20i-d1.dtsi
25*4882a593Smuzhiyun@@ -1136,7 +1136,7 @@
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun 		plic: interrupt-controller@10000000 {
28*4882a593Smuzhiyun 			compatible = "allwinner,sun20i-d1-plic",
29*4882a593Smuzhiyun-				     "sifive,plic-1.0.0";
30*4882a593Smuzhiyun+				     "thead,c900-plic";
31*4882a593Smuzhiyun 			reg = <0x10000000 0x4000000>;
32*4882a593Smuzhiyun 			#address-cells = <0>;
33*4882a593Smuzhiyun 			interrupts-extended = <&cpu0_intc 11>,
34*4882a593Smuzhiyun--
35*4882a593Smuzhiyun2.20.1
36*4882a593Smuzhiyun
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