Thread (9 messages) 9 messages, 4 authors, 1d ago
WARM1d REVIEWED: 1 (0M)
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 1/2] riscv: dts: spacemit: Fix phy id check for the phy on pico-itx board

From: Inochi Amaoto <inochiama@gmail.com>
Date: 2026-07-25 00:58:15
Also in: linux-devicetree, linux-riscv, lkml, spacemit
Subsystem: risc-v architecture, risc-v spacemit soc support, the rest · Maintainers: Paul Walmsley, Palmer Dabbelt, Albert Ou, Yixun Lan, Linus Torvalds

Current phy framework can not reinit the phy correctly, as it will
assert the phy reset GPIO so the phy id can not be readed. Setting
the phy id of board pico-itx manually so the phy id dectection can
be skipped.

Fixes: 74657a376960 ("riscv: dts: spacemit: Add ethernet device for K3")
Reported-by: E Shattow <redacted>
Reported-by: Inochi Amaoto <inochiama@gmail.com>
Closes: https://lore.kernel.org/netdev/20260712045233.800748-1-inochiama@gmail.com (local)
Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: E Shattow <redacted>
---
 arch/riscv/boot/dts/spacemit/k3-pico-itx.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
index b2a7d2d0d3a8..b9d2de878f38 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
+++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
@@ -196,7 +196,8 @@ &eth0 {
 
 	mdio {
 		phy0: phy@1 {
-			compatible = "ethernet-phy-ieee802.3-c22";
+			compatible = "ethernet-phy-id001c.c916",
+				     "ethernet-phy-ieee802.3-c22";
 			reg = <1>;
 			reset-gpios = <&gpio 0 15 GPIO_ACTIVE_LOW>;
 			reset-assert-us = <10000>;
-- 
2.55.0
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