Hmm, looks like the google webmail doesn't send multi-mime messages. I didn't know that yet.
And if there is no progress, then i would look for another solution. No problem :-) Am Sa., 7. Dez. 2019 um 10:27 Uhr schrieb Andreas Färber <[email protected]>: > > Sascha, > > Am 07.12.19 um 07:23 schrieb Sascha Dewald: > > Hello, > > > > is there any progress yet ? > > There is absolutely no reason to annoy all the board maintainers on this > mailing list with nagging about an unimplemented driver for one board! > Especially not with HTML mail and top-posting!!! Please take this > discussion to the u-boot mailing list (Reply-to set). > > Regards, > Andreas > > > Am Fr., 22. Nov. 2019 um 00:27 Uhr schrieb André Przywara > > <[email protected] <mailto:[email protected]>>: > > > > On 21/11/2019 21:46, Sascha Dewald wrote: > > > > Hi, > > > > > could someone give me a summary which is missing in u-boot and what > > > needs to be ported ? > > > > The PHY is pretty much standard and already supported, as far as I can > > see, the MAC is not. > > > > > I found other broadcom drivers, which are already in u-boot. > > > > The RPi4 uses a Broadcom GENETv5 IP (with a slight tweak). The Linux > > driver is quite sophisticated: it supports older revisions (v1..v4), > > makes clever use of multiple priority queues and is of course fully > > interrupt driven, including napi shortcuts, also enjoys all the glory of > > the full Linux driver framework galore. > > For U-Boot we can get away with a MUCH simpler driver. Amit and I spent > > a while understanding the hardware based on the Linux driver, and Amit > > saw the first ARP packet from U-Boot on his laptop yesterday. He is > > currently working on the recv() function. > > > > > How difficult is it, to strip the drivers down, from the linux > > kernel to > > > work with u-boot? > > > > As mentioned, stripping the driver down (as in copying and editing) is > > not a good idea, but the basic driver is already somewhat working > > (probing, instantiation, sending packets), so we are not far away. > > > > If I could ask for just for a few more days of patience, then I am > > looking forward for your help with review and testing! > > > > Cheers, > > Andre > > > > > Am Mi., 20. Nov. 2019 um 12:21 Uhr schrieb Andre Przywara > > > <[email protected] <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>>: > > > > > > On Wed, 20 Nov 2019 12:13:55 +0100 > > > Matthias Brugger <[email protected] <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>> wrote: > > > > > > Hi, > > > > > > > Adding Andre as he helps in the effort to port the driver. More > > > comments inline. > > > > > > > > On 19/11/2019 22:46, Heinrich Schuchardt wrote: > > > > > On 11/19/19 9:48 PM, Simon Glass wrote: > > > > >> Hi Sascha, > > > > >> > > > > >> On Tue, 19 Nov 2019 at 10:10, Sascha Dewald > > > <[email protected] <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>> > > wrote: > > > > >>> > > > > >>> Hi Simon, > > > > >>> > > > > >>> it uses bcmgenet. > > > > >>> > > > > >>> Below some information from "hwinfo" and "dmesg" > > > > >>> > > > > >> > > > > >> OK, well I think this is in linux as > > > drivers/net/ethernet/broadcom/genet > > > > >> > > > > >> I'm not sure about the PHY but it looks like there is no > > driver for > > > > >> genet in U-Boot. I suggest poriting it over. > > > > > > Amit (CC:ed) is working on that. That is still quite rough and not > > > really working yet, but as of yesterday he saw the first (empty) > > > packets on the line at least. > > > I would assume we get something working still this year. > > > > > > > > In linux-next/next-20191119 > > > > > arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b.dtb > > > > > there is no network device. > > > > > > > > > Florian send a new pull request, I think yesterday which > > adds the > > > genet driver > > > > to RPi4. > > > > > > I found the burst length quirk together with the new compatible > > > string in David's net-next/master two days ago. > > > > > > > > On Raspbian you can find for RPi4: > > > > > > > > > > compatible = "brcm,genet-v5" > > > > > relating to Linux > > drivers/net/ethernet/broadcom/genet/bcmgenet.c > > > > > CONFIG_BCMGENET "Broadcom GENET internal MAC support" > > > > > > > > > > > > > RPi4 is a special case as DMA burst size is different from plain > > > genet-v5 > > > > driver. But that might be of no relevance for U-Boot. > > > > > > Yeah, since there is no other user, we could just go ahead and fix > > > the smaller burst length of 8 in U-Boot. I guess we don't care > > about > > > the performance impact that has. > > > > > > Cheers, > > > Andre. > > > > > > > > > > > > compatible = "ethernet-phy-ieee802.3-c22"; > > > > > relating to Linux drivers/of/of_mdio.c. > > > > > CONFIG_OF_MDIO OpenFirmware MDIO bus (Ethernet PHY) accessors > > > > > > > > > > compatible = "brcm,genet-mdio-v5"; > > > > > relating to Linux drivers/net/phy/mdio-bcm-unimac.c > > > > > CONFIG_MDIO_BCM_UNIMAC "Broadcom UniMAC MDIO bus controller" > > > > > > > > > > So wouldn't we need all three drivers? > > > > > > > > > > Maybe Joe can tell us. > > > > > > > > > > Best regards > > > > > > > > > > Heinrich > > > > > > > > > > > > > > >> > > > > >> Regards, > > > > >> Simon > > > > >> _______________________________________________ > > > > >> U-Boot-Board-Maintainers mailing list > > > > >> [email protected] > > <mailto:[email protected]> > > > <mailto:[email protected] > > <mailto:[email protected]>> > > > > >> https://lists.denx.de/listinfo/u-boot-board-maintainers > > > > >> > > > > > > > > > > > > > -- > SUSE Software Solutions Germany GmbH > Maxfeldstr. 5, 90409 Nürnberg, Germany > GF: Felix Imendörffer > HRB 36809 (AG Nürnberg)
