From 4edc8224073e61498b1de338c67174f47fc3c5e1 Mon Sep 17 00:00:00 2001 From: Bin Meng Date: Sat, 27 Mar 2021 13:05:27 +0800 Subject: [PATCH] lib/utils: Support fixing up the official DT bindings of PLIC Current fdt_plic_fixup() only does necessary fix-up against the legacy "riscv,plic0" node. The upstream Linux kernel defines its official DT bindings which uses "sifive,plic-1.0.0" as the compatible string and we should check that first, and if not present fall back to legacy. Signed-off-by: Bin Meng Reviewed-by: Anup Patel --- lib/utils/fdt/fdt_fixup.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/lib/utils/fdt/fdt_fixup.c b/lib/utils/fdt/fdt_fixup.c index a306ff5..1465500 100644 --- a/lib/utils/fdt/fdt_fixup.c +++ b/lib/utils/fdt/fdt_fixup.c @@ -57,9 +57,12 @@ void fdt_plic_fixup(void *fdt) int i, cells_count; int plic_off; - plic_off = fdt_node_offset_by_compatible(fdt, 0, "riscv,plic0"); - if (plic_off < 0) - return; + plic_off = fdt_node_offset_by_compatible(fdt, 0, "sifive,plic-1.0.0"); + if (plic_off < 0) { + plic_off = fdt_node_offset_by_compatible(fdt, 0, "riscv,plic0"); + if (plic_off < 0) + return; + } cells = (u32 *)fdt_getprop(fdt, plic_off, "interrupts-extended", &cells_count); -- 2.7.4