On 2018-12-10 8:59 p.m., Daniel F. Dickinson wrote:
Hi all,
I'm not sure what's changed but the PowerCloud CR5000 DTS for ath79 no
longer works for 5GHz wireless (everything else does though). It
worked for ar71xx in 18.06.1 (have not yet tried ar71xx in master).
So a few details I missed; it worked on ath79 master when I first added
the DTS (so while a significant number commits ago, it's probably
bisectable if need be though I would of course double check that commit
worked before going through a bisect). Also it work on master with
4.9. And finally it half-works on current master ar71xx -- that is the
IRQs are completely different and the (wrong) MAC address comes from the
PCI EEPROM instead of the mtd-based MAC (so ap94_pci_init is not
resulting in the MAC address being used from art partition anymore).
Are there folks who can help if I post the relevant boot logs from
various points and time, or is there a better way to proceed?
My hunch is the switch to wireless backports is the culprit and
bisecting isn't going to help much because the backports commit changes
a whack of code that's in play.
It tried some changes discussed on
https://github.com/openwrt/openwrt/pull/1613 (which I closed).
I suspect the culprit is related to the ap94_pci_init(NULL, NULL,
NULL, <5ghz_mac_offset>) call in ar71xx[1] is not replicated in the
DTS[2]
Boot appears fine but errors show up when actually attempting to use
the interface (not that my tree adds qca,disable-2ghz to the pcie node
as otherwise it's using the wrong band from the pcie card).
Boot logs for ath79 show:
[snip]
[ 0.159193] PCI host bridge /ahb/apb/pcie-controller@180c0000 ranges:
[ 0.166070] MEM 0x0000000010000000..0x0000000013ffffff
[ 0.171582] IO 0x0000000000000000..0x0000000000000000
[ 0.201206] PCI host bridge to bus 0000:00
[ 0.205545] pci_bus 0000:00: root bus resource [mem
0x10000000-0x13ffffff]
[ 0.212852] pci_bus 0000:00: root bus resource [io 0x0000]
[ 0.218723] pci_bus 0000:00: root bus resource [??? 0x00000000
flags 0x0]
[ 0.225893] pci_bus 0000:00: No busn resource found for root bus,
will use [bus 00-ff]
[ 0.234291] pci 0000:00:00.0: [168c:0030] type 00 class 0x028000
[ 0.234354] pci 0000:00:00.0: reg 0x10: [mem 0x00000000-0x0001ffff
64bit]
[ 0.234411] pci 0000:00:00.0: reg 0x30: [mem 0x00000000-0x0000ffff
pref]
[ 0.234497] pci 0000:00:00.0: supports D1
[ 0.234508] pci 0000:00:00.0: PME# supported from D0 D1 D3hot
[ 0.234792] pci_bus 0000:00: busn_res: [bus 00-ff] end is updated
to 00
[ 0.234826] pci 0000:00:00.0: BAR 0: assigned [mem
0x10000000-0x1001ffff 64bit]
[ 0.242606] pci 0000:00:00.0: BAR 6: assigned [mem
0x10020000-0x1002ffff pref]
[snip]
[ 9.061058] ath: EEPROM regdomain: 0x0
[ 9.061069] ath: EEPROM indicates default country code should be used
[ 9.061074] ath: doing EEPROM country->regdmn map search
[ 9.061091] ath: country maps to regdmn code: 0x3a
[ 9.061098] ath: Country alpha2 being used: US
[ 9.061103] ath: Regpair used: 0x3a
[ 9.077030] ieee80211 phy0: Selected rate control algorithm
'minstrel_ht'
[ 9.079152] ieee80211 phy0: Atheros AR9340 Rev:1 mem=0xb8100000,
irq=11
[ 9.086530] PCI: Enabling device 0000:00:00.0 (0000 -> 0002)
[ 9.235699] ath: phy1: disabling 2GHz band
[ 9.241044] ath: EEPROM regdomain: 0x0
[ 9.241050] ath: EEPROM indicates default country code should be used
[ 9.241054] ath: doing EEPROM country->regdmn map search
[ 9.241072] ath: country maps to regdmn code: 0x3a
[ 9.241079] ath: Country alpha2 being used: US
[ 9.241083] ath: Regpair used: 0x3a
[ 9.476205] ieee80211 phy1: Selected rate control algorithm
'minstrel_ht'
[ 9.478461] ieee80211 phy1: Atheros AR9300 Rev:3 mem=0xb0000000,
irq=13
[snip]
And when attempting to use phy1 (5GHz wireless):
root@OpenWrt:/# iwinfo wlan1 info
wlan1 ESSID: unknown
Access Point: 68:51:B7:80:2B:BE
Mode: Client Channel: unknown (unknown)
Tx-Power: 25 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: unknown
Type: nl80211 HW Mode(s): 802.11an
Hardware: 168C:0030 168C:3116 [Generic MAC80211]
TX power offset: unknown
Frequency offset: unknown
Supports VAPs: yes PHY name: phy1
root@OpenWrt:/# iwinfo wlan1 scan
[ 36.472062] ath: phy1: Unable to reset hardware; reset status -5
(freq 5180 MHz)
[ 36.710068] ath: phy1: Unable to reset channel, reset status -5
[ 36.716420] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
[ 36.950537] ath: phy1: Unable to reset channel, reset status -5
[repeats]
[ 39.895120] ath: phy1: Could not kill baseband RX
[repeat the above two error messages]
Any ideas / help / advice on debugging would be greatly appreciated.
Regards,
Daniel
[1]](https://github.com/openwrt/openwrt/blob/f6e9f2377119965d4db164568b4a90c4e895cd3d/target/linux/ar71xx/files/arch/mips/ath79/mach-cr5000.c#L156)
[2](https://github.com/openwrt/openwrt/blob/master/target/linux/ath79/dts/ar9344_pcs_cr5000.dts)
Regards,
Daniel
_______________________________________________
openwrt-devel mailing list
openwrt-devel@lists.openwrt.org
https://lists.openwrt.org/mailman/listinfo/openwrt-devel
