[PATCH 2/2] arm64: dts: rockchip: Add basic support for QNAP TS-433

[Uwe Kleine-König]

On Tue, Feb 27, 2024 at 10:00:48PM +0100, Andrew Lunn wrote:
> > +&gmac0 {
> > +	assigned-clocks = <&cru SCLK_GMAC0_RX_TX>, <&cru SCLK_GMAC0>;
> > +	assigned-clock-parents = <&cru SCLK_GMAC0_RGMII_SPEED>, <&cru CLK_MAC0_2TOP>;
> > +	assigned-clock-rates = <0>, <125000000>;
> > +	clock_in_out = "output";
> > +	phy-handle = <&rgmii_phy0>;
> > +	phy-mode = "rgmii";
> > +	pinctrl-names = "default";
> > +	pinctrl-0 = <&gmac0_miim
> > +		     &gmac0_tx_bus2
> > +		     &gmac0_rx_bus2
> > +		     &gmac0_rgmii_clk
> > +		     &gmac0_rgmii_bus>;
> > +	rx_delay = <0x2f>;
> > +	tx_delay = <0x3c>;
> 
> Have you tried phy-mode = "rgmii-id"; and not have these two _delay
> settings?

I didnt' up to now. I applied the following on top of my dts:

diff --git a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
index ba7137f80075..a8747d9f36da 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-qnap-ts433.dts
@@ -39,15 +39,13 @@ &gmac0 {
 	assigned-clock-rates = <0>, <125000000>;
 	clock_in_out = "output";
 	phy-handle = <&rgmii_phy0>;
-	phy-mode = "rgmii";
+	phy-mode = "rgmii-id";
 	pinctrl-names = "default";
 	pinctrl-0 = <&gmac0_miim
 		     &gmac0_tx_bus2
 		     &gmac0_rx_bus2
 		     &gmac0_rgmii_clk
 		     &gmac0_rgmii_bus>;
-	rx_delay = <0x2f>;
-	tx_delay = <0x3c>;
 	status = "okay";
 };
 
and this makes the machine unable to complete dhcp. I see the requests
and replies on the dhcp server side, but the machine tells me not to
receive a dhcp reply. So the above patch breaks the receive path.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |
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