On Thu, 19 Oct 2023 17:49:35 +0300
Vladimir Oltean <olteanv@xxxxxxxxx> wrote:
> On Thu, Oct 19, 2023 at 05:40:22PM +0300, Vladimir Oltean wrote:
> > +Marek
> >
> > On Wed, Oct 18, 2023 at 11:03:44AM +0200, Linus Walleij wrote:
> > > Fix some errors in the Marvell MV88E6xxx switch descriptions:
> > > - The top node had no address size or cells.
> > > - switch0@0 is not OK, should be switch@0.
> > >
> > > Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
> > > ---
> > > diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > index 9eab2bb22134..c69cb4e191e5 100644
> > > --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
> > > @@ -305,7 +305,7 @@ phy1: ethernet-phy@1 {
> > > };
> > >
> > > /* switch nodes are enabled by U-Boot if modules are present */
> > > - switch0@10 {
> > > + switch@10 {
> >
> > As the comment says: U-Boot
> > (https://elixir.bootlin.com/u-boot/latest/source/board/CZ.NIC/turris_mox/turris_mox.c#L728)
> > sets up status = "okay" for these nodes depending on the MOXTET
> > configuration. It doesn't look as if it's doing that by alias, just by
> > path ("%s/switch%i@%x").
> >
> > I have a Turris MOX, please allow me some time to test if the node name
> > change is going to be significant and cause regressions. I expect the
> > answer to be yes (sadly).
>
> Yeah, it's bad.
>
> U-Boot 2018.11 (Dec 16 2018 - 12:50:19 +0000), Build: jenkins-turris-os-packages-kittens-mox-90
>
> DRAM: 1 GiB
> Enabling Armada 3720 wComphy-0: SGMII1 3.125 Gbps
> Comphy-1: PEX0 5 Gbps
> Comphy-2: USB3_HOST0 5 Gbps
> MMC: sdhci@d8000: 0
> Loading Environment from SPI Flash... SF: Detected w25q64dw with page size 256 Bytes, erase size 4 KiB, total 8 MiB
> OK
> Model: CZ.NIC Turris Mox Board
> Net: eth0: neta@30000
> Turris Mox:
> Board version: 22
> RAM size: 1024 MiB
> SD/eMMC version: SD
> Module Topology:
> 1: Peridot Switch Module (8-port)
> 2: Peridot Switch Module (8-port)
> 3: Peridot Switch Module (8-port)
> 4: SFP Module
>
> Hit any key to stop autoboot: 0
> => run sd_tftp_boot
> neta@30000 Waiting for PHY auto negotiation to complete....... done
> BOOTP broadcast 1
> BOOTP broadcast 2
> DHCP client bound to address 10.0.0.117 (254 ms)
> Using neta@30000 device
> TFTP from server 10.0.0.1; our IP address is 10.0.0.117
> Filename 'mox/armada-3720-turris-mox.dtb'.
> Load address: 0x4f00000
> Loading: ####
> 1.5 MiB/s
> done
> Bytes transferred = 19479 (4c17 hex)
> Using neta@30000 device
> TFTP from server 10.0.0.1; our IP address is 10.0.0.117
> Filename 'mox/Image'.
> Load address: 0x5000000
> Loading: #################################################################
> ##########################################
> 6 MiB/s
> done
> Bytes transferred = 54069760 (3390a00 hex)
> ## Flattened Device Tree blob at 04f00000
> Booting using the fdt blob at 0x4f00000
> Loading Device Tree to 000000003bf16000, end 000000003bf1dc16 ... OK
> ERROR: board-specific fdt fixup failed: FDT_ERR_NOTFOUND
> - must RESET the board to recover.
>
> FDT creation failed! hanging...### ERROR ### Please RESET the board ###
Yes, unfortunately changing that node name will break booting.
Maybe we could add a comment into the DTS to describe this unfortunate
state of things? :)
Marek
