Am 11.10.2013 um 22:46 schrieb Artturi Alm <artturi....@gmail.com>: > On 10/11/13 20:39, Markus Hennecke wrote: >> On Sat, 5 Oct 2013, Artturi Alm wrote: >> >>> Current version attached, extract to /sys/arch/armv7 and read the short >>> notes file, no more out of allwinner/ patches needed thanks to armv7. >>> >>> A20 support still needs a workaround under /sys/arch/arm/cortex/ which >>> i didn't include as i think support is still 'subtly' broken anyway.. >>> And ahci is still not working for me, but there's a couple of >>> new drivers included. >>> Ethernet driver survived make build of userland with /usr/src mounted >>> via nfs, fwiw. >>> >>> Now this is totally usable for me as-is already, so any feedback is >>> welcome, be it finding out possible bugs and/or confirming it's working. >> >> Great work! I made a few changes to fix the timer code for the A20 CPU, >> the diff to your code is attached. With this I am almost booting the >> kernel on a cubieboard 2: >> >> Copyright (c) 1982, 1986, 1989, 1991, 1993 >> The Regents of the University of California. All rights reserved. >> Copyright (c) 1995-2013 OpenBSD. All rights reserved. http://www.OpenBSD.org >> >> OpenBSD 5.4-current (GENERIC-ALLWINNER) #22: Fri Oct 11 19:17:11 CEST 2013 >> >> mar...@antigone.markus-hennecke.de:/usr/src/sys/arch/armv7/compile/GENERIC-ALLWINNER >> real mem = 1073741824 (1024MB) >> avail mem = 1040007168 (991MB) >> mainbus0 at root >> cortex0 at mainbus0 >> ampintc0 at cortex0 nirq 160 >> cpu0 at mainbus0: ARM Cortex A7 rev 4 (ARMv7 core) >> cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled >> cpu0: 32KB(32b/l,2way) I-cache, 32KB(64b/l,4way) wr-back D-cache >> allwinner0 at mainbus0: A20 >> awpio0 at allwinner0 >> awccmu0 at allwinner0 >> awtimer0 at allwinner0: tick rate 32KHz hz 100 stat rate 32KHz stathz 128 >> counter 24000 KHz >> awdog0 at allwinner0 >> awrtc0 at allwinner0 >> awuart0 at allwinner0: console >> awe0 at allwinner0 >> awe0: address 00:00:00:00:00:00 >> rlphy0 at awe0 phy 1: RTL8201L 10/100 PHY, rev. 1 >> ahci0 at allwinner0 GHC 0x80000000<AE> AHCI 1.1 >> ahci0: capabilities >> 0x6726ff80<NCQ,SSNTF,SALP,SAL,SCLO,SAM,SPM,PMD,SSC,PSC,CCCS>, 1 ports, 32 >> cmds, gen 1 (1.5Gbps) and 2 (3Gbps) >> ahci0: ports implemented: 0x00000001 >> ahci0.0: port reset >> ahci0: no device detected on port 0 >> scsibus0 at ahci0: 32 targets >> ehci0 at allwinner0 >> usb0 at ehci0: USB revision 2.0 >> uhub0 at usb0 "Allwinner EHCI root hub" rev 2.00/1.00 addr 1 >> ehci1 at allwinner0 >> usb1 at ehci1: USB revision 2.0 >> uhub1 at usb1 "Allwinner EHCI root hub" rev 2.00/1.00 addr 1 >> gpio0 at awpio0: 18 pins >> gpio1 at awpio0: 24 pins >> gpio2 at awpio0: 25 pins >> gpio3 at awpio0: 28 pins >> gpio4 at awpio0: 12 pins >> gpio5 at awpio0: 6 pins >> gpio6 at awpio0: 12 pins >> gpio7 at awpio0: 28 pins >> gpio8 at awpio0: 22 pins >> /dev/ksyms: Symbol table not valid. >> >> Here the output stops, I will look into that later. At this point I am >> unable to figure out how to set the ethaddr in the u-boot version I am >> using. setenv ethaddr xx:xx:xx:xx:xx:xx doesn't seem to have any effect. >> >> Kind regards >> Markus >> > > Hi, > > Thanks for the patch, it looks correct when compared to the user manual > and shows how ugly sources may get when not paid enough attention, > will fix the whitespaces there also. Note that Cortex-A7 should > support agtimer found in arch/arm/cortex, which would allow cleaning > up awtimer.c from the 'added on'-kind of hacks to support A20, > priorities have kept me from trying that one out so far. > > To allow it to boot further you would have to change ICP_ADDR and > ICD_ADDR in ampintc, iirc. possibly 0x1000 and 0x2000 respectively, > which is not the fix that would ever get commited even if allwinner > would be on cvs, as it'll break Cortex-A9, and unfortunately, masking > by cpu is not working option either, there is example of where it would > fail already (exynos). > FDT is the only clean solution i can think of, when there is priority on > keeping arch/arm/cortex free of SoC-dependent code.
Exactly. We have already talked and discussed that a lot. :) There is no other way around it. > > About ethaddr, have you tried pinging another host from u-boot? > Does your u-boot support emac? the one i initially downloaded for > cubieboard2 did not iirc., if you can boot the bsd.umg over network, > and still get 00:00:00:00:00:00, i will power up my cb2 to fix awe, > as it's so far untested on A20 afaik. Maybe Allwinner stores the mac address in some magic register? i.MX6 does that. u-boot might be able to push the "ethaddr env" using the FDT. > > > -Artturi >
