[PATCH 3/3] riscv: dts: thead: add zfh for th1520

[Han Gao]

th1520 support Zfh ISA extension [1].

Link: https://occ-oss-prod.oss-cn-hangzhou.aliyuncs.com/resource//1737721869472/%E7%8E%84%E9%93%81C910%E4%B8%8EC920R1S6%E7%94%A8%E6%88%B7%E6%89%8B%E5%86%8C%28xrvm%29_20250124.pdf [1]

Signed-off-by: Han Gao <rabenda.cn at gmail.com>
Signed-off-by: Han Gao <gaohan at iscas.ac.cn>
---
 arch/riscv/boot/dts/thead/th1520.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 7f07688aa964..2075bb969c2f 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -26,7 +26,7 @@ c910_0: cpu at 0 {
 			riscv,isa-base = "rv64i";
 			riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
 					       "ziccrse", "zicntr", "zicsr",
-					       "zifencei", "zihpm",
+					       "zifencei", "zihpm", "zfh",
 					       "xtheadvector";
 			thead,vlenb = <16>;
 			reg = <0>;
@@ -53,7 +53,7 @@ c910_1: cpu at 1 {
 			riscv,isa-base = "rv64i";
 			riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
 					       "ziccrse", "zicntr", "zicsr",
-					       "zifencei", "zihpm",
+					       "zifencei", "zihpm", "zfh",
 					       "xtheadvector";
 			thead,vlenb = <16>;
 			reg = <1>;
@@ -80,7 +80,7 @@ c910_2: cpu at 2 {
 			riscv,isa-base = "rv64i";
 			riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
 					       "ziccrse", "zicntr", "zicsr",
-					       "zifencei", "zihpm",
+					       "zifencei", "zihpm", "zfh",
 					       "xtheadvector";
 			thead,vlenb = <16>;
 			reg = <2>;
@@ -107,7 +107,7 @@ c910_3: cpu at 3 {
 			riscv,isa-base = "rv64i";
 			riscv,isa-extensions = "i", "m", "a", "f", "d", "c",
 					       "ziccrse", "zicntr", "zicsr",
-					       "zifencei", "zihpm",
+					       "zifencei", "zihpm", "zfh",
 					       "xtheadvector";
 			thead,vlenb = <16>;
 			reg = <3>;
-- 
2.47.3