Hi Fabio On 24.06.20 21:39, Fabio Estevam wrote: > Hi Soeren, > > On Wed, Jun 24, 2020 at 4:20 PM Soeren Moch <sm...@web.de> wrote: > >> I tested current master (v2020.07-rc5 + imx fixes) on tbs2910 (imx6q + >> atheros PHY). >> Unfortunately ethernet is broken now, while it used to work well on >> u-boot version v2020.04. Ethernet support was copied from imx6q-sabresd, >> the recently for sabresd fixed phy-mode already is rgmii-id for tbs2910. >> >> Any ideas what could be wrong? > I just tested mainline U-Boot and Ethernet works fine on a imx6qp sabresd > board: > > U-Boot SPL 2020.07-rc5-00052-g922c6d5d00 (Jun 24 2020 - 16:21:27 -0300) > Trying to boot from MMC1 > > > U-Boot 2020.07-rc5-00052-g922c6d5d00 (Jun 24 2020 - 16:21:27 -0300) > > CPU: Freescale i.MX6QP rev1.0 996 MHz (running at 792 MHz) > CPU: Automotive temperature grade (-40C to 125C) at 30C > Reset cause: POR > Model: Freescale i.MX6 Quad Plus SABRE Smart Device Board > Board: MX6-SabreSD > I2C: ready > DRAM: 1 GiB > PMIC: PFUZE100 ID=0x10 > MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 3 > Loading Environment from MMC... OK > No panel detected: default to Hannstar-XGA > Display: Hannstar-XGA (1024x768) > In: serial > Out: serial > Err: serial > Net: eth0: ethernet@2188000 > Hit any key to stop autoboot: 0 > => dhcp zImage > BOOTP broadcast 1 > DHCP client bound to address 192.168.0.24 (50 ms) > Using ethernet@2188000 device > TFTP from server 192.168.0.12; our IP address is 192.168.0.24 > Filename 'zImage'. > Load address: 0x12000000 > Loading: ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ################################################################# > ############################################################# > 1.3 MiB/s > done > Bytes transferred = 9468928 (907c00 hex) > => mdio list > FEC0: > 1 - AR8031/AR8033 <--> ethernet@2188000 > => > > What is the exact failure you see? Is the Ethernet PHY found at the > correct address and probed? From what I see nothing is obviously wrong, just no ethernet connection:
U-Boot 2020.07-rc5-00039-g4ff63383e3-dirty (Jun 24 2020 - 21:48:31 +0200) CPU: Freescale i.MX6Q rev1.2 at 792MHz CPU: Commercial temperature grade (0C to 95C) at 42C Reset cause: POR Model: TBS2910 Matrix ARM mini PC DRAM: 2 GiB MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2 Loading Environment from MMC... OK No panel detected: default to HDMI Display: HDMI (1024x768) In: serial Out: vga Err: vga Net: eth0: ethernet@2188000 PCI: PCI: pcie phy link never came up No such bus starting USB... Bus usb@2184000: usb dr_mode not found Bus usb@2184200: USB EHCI 1.00 scanning bus usb@2184000 for devices... 1 USB Device(s) found scanning bus usb@2184200 for devices... 4 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Hit any key to stop autoboot: 0 Matrix U-Boot> dhcp BOOTP broadcast 1 BOOTP broadcast 2 BOOTP broadcast 3 BOOTP broadcast 4 BOOTP broadcast 5 BOOTP broadcast 6 BOOTP broadcast 7 BOOTP broadcast 8 BOOTP broadcast 9 BOOTP broadcast 10 BOOTP broadcast 11 BOOTP broadcast 12 BOOTP broadcast 13 BOOTP broadcast 14 BOOTP broadcast 15 BOOTP broadcast 16 BOOTP broadcast 17 Retry time exceeded; starting again Matrix U-Boot> mdio list FEC0: 4 - AR8035 <--> ethernet@2188000 Matrix U-Boot> > On tbs2910 does the AR8031 generate a 125MHz clock to the i.MX6Q Ethernet? > > If so, does the change below help (I am assuming the PHY is located at > address 1, if not, please adjust the @ and reg accordingly)? > > --- a/arch/arm/dts/imx6q-tbs2910.dts > +++ b/arch/arm/dts/imx6q-tbs2910.dts > @@ -108,6 +108,16 @@ > phy-mode = "rgmii-id"; > phy-reset-gpios = <&gpio1 25 GPIO_ACTIVE_LOW>; > status = "okay"; > + > + mdio { > + #address-cells = <1>; > + #size-cells = <0>; > + > + phy: ethernet-phy@1 { > + reg = <1>; > + qca,clk-out-frequency = <125000000>; > + }; > + }; > }; I used this patch with address 4 (that's why the -dirty in the u-boot version), no luck. It seems I have a AR8035 PHY. > > In case you still have issues, please share the tbs2910 schematics > with me offline so I can try to understand the failure. Schematics are at https://www.tbsdtv.com/download/document/tbs2910/TBS2910-Matrix-ARM-mini-PC-SCH_rev2.1.pdf Thanks for your help, Soeren