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Without the phy-supply property, the PHY driver does not ensure the regulator is enabled, causing SRAM initialization to timeout with "lock failed" errors: phy phy-fe8c0000.phy.1: phy poweron failed --> -110 rockchip-snps-pcie3-phy fe8c0000.phy: PCIe3PHY lock failed 0x6890000 rockchip-pcie fe280000.pcie: phy init failed: -110 This results in NVMe devices in the M.2 slot not being detected. Add phy-supply referencing vcc3v3_pi6c_03 regulator (which controls the PI6C PCIe clock generator power via GPIO0_D4) to ensure proper power sequencing during PHY initialization. Fixes: 846ef7748fa9 ("arm64: dts: rockchip: Add Radxa ROCK 3B") Signed-off-by: MidG971 Co-developed-by: Claude Signed-off-by: Claude --- arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts index c5f67dd6dfd9..a1b2c3d4e5f6 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3b.dts @@ -404,6 +404,7 @@ &pcie2x1 { }; &pcie30phy { + phy-supply = <&vcc3v3_pi6c_03>; status = "okay"; }; -- 2.39.5