WIP lede-project#1

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Driver supports 2 chip versions: RTL8367RB, RTL8367R-VB. Each of them has 2 external ports.
RTL8367RB has ports indexed as #1,lede-project#2 (PHY lede-project#6, lede-project#7).
RTL8367R-VB has ports indexed as #0,#1 (PHY lede-project#5,lede-project#6).
Map ports so that extif0 complies to external port 0 or 1 depending on chip ID.

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Driver supports 2 chip versions: RTL8367RB, RTL8367R-VB. Each of them has 2 external ports.
RTL8367RB has ports indexed as #1,lede-project#2 (PHY lede-project#6, lede-project#7).
RTL8367R-VB has ports indexed as #0,#1 (PHY lede-project#5,lede-project#6).
Map ports so that extif0 complies to external port 0 or 1 depending on chip ID.

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Driver supports 2 chip versions: RTL8367RB, RTL8367R-VB. Each of them has 2 external ports.
RTL8367RB has ports indexed as #1,lede-project#2 (PHY lede-project#6, lede-project#7).
RTL8367R-VB has ports indexed as #0,#1 (PHY lede-project#5,lede-project#6).
Map ports so that extif0 complies to external port 0 or 1 depending on chip ID.

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Driver supports 2 chip versions: RTL8367RB, RTL8367R-VB. Each of them has 2 external ports.
RTL8367RB has ports indexed as #1,lede-project#2 (PHY lede-project#6, lede-project#7).
RTL8367R-VB has ports indexed as #0,#1 (PHY lede-project#5,lede-project#6).
Map ports so that extif0 complies to external port 0 or 1 depending on chip ID.

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Remove unneeded cpu port property, update external interface init
according to mapped ports for RTL8267RB:
ext port #1 = extif0
ext port lede-project#2 = extif1

Signed-off-by: Vitaly Chekryzhev <[email protected]>

Netgear WNR612v2 flashed with recent OpenWrt builds suffers from kernel
panic at boot during wireless chip initialization, making device
unusable:

 ath: phy0: Ignoring endianness difference in EEPROM magic bytes.
 ath: phy0: Enable LNA combining
 CPU 0 Unable to handle kernel paging request at virtual address 1000fee1, epc == 801d08f0, ra == 801d0d90
 Oops[#1]:
 CPU: 0 PID: 469 Comm: kmodloader Not tainted 4.9.120 #0
 [ ... register dump etc ... ]
 Kernel panic - not syncing: Fatal exception
 Rebooting in 1 seconds..

This simple patch fixes above error. It keeps LED table in memory after
kernel init phase for ath9k driver to operate correctly (__initdata
removed).

Also, another bug is fixed - correct array size is provided to function
that adds platform LEDs (this device has only 1 connected to Wifi chip)
preventing code from going outside array bounds.

Fixes: 1f5ea4e ("ar71xx: add correct named default wireless led by using platform leds")

Signed-off-by: Michal Cieslakiewicz <[email protected]>
[trimmed commit message]
Signed-off-by: Mathias Kresin <[email protected]>

Netgear WNR612v2 flashed with recent OpenWrt builds suffers from kernel
panic at boot during wireless chip initialization, making device
unusable:

 ath: phy0: Ignoring endianness difference in EEPROM magic bytes.
 ath: phy0: Enable LNA combining
 CPU 0 Unable to handle kernel paging request at virtual address 1000fee1, epc == 801d08f0, ra == 801d0d90
 Oops[#1]:
 CPU: 0 PID: 469 Comm: kmodloader Not tainted 4.9.120 #0
 [ ... register dump etc ... ]
 Kernel panic - not syncing: Fatal exception
 Rebooting in 1 seconds..

This simple patch fixes above error. It keeps LED table in memory after
kernel init phase for ath9k driver to operate correctly (__initdata
removed).

Also, another bug is fixed - correct array size is provided to function
that adds platform LEDs (this device has only 1 connected to Wifi chip)
preventing code from going outside array bounds.

Fixes: 1f5ea4e ("ar71xx: add correct named default wireless led by using platform leds")

Signed-off-by: Michal Cieslakiewicz <[email protected]>
[trimmed commit message]
Signed-off-by: Mathias Kresin <[email protected]>

fix following kernel Oops:

[   12.311187] cfg80211: World regulatory domain updated:
[   12.316392] cfg80211:  DFS Master region: unset
[   12.320733] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   12.330462] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.338458] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.346450] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   12.354437] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   12.363901] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   12.373372] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   12.381448] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.389442] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   12.450263] PPP generic driver version 2.4.2
[   12.457166] NET: Registered protocol family 24
[   12.499286] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   12.521134] Data bus error, epc == 80e0e238, ra == 80e0e22c
[   12.526702] Oops[lede-project#1]:
[   12.528974] CPU: 0 PID: 615 Comm: kmodloader Not tainted 4.1.13 lede-project#1
[   12.535146] task: 81998000 ti: 81bc6000 task.ti: 81bc6000
[   12.540526] $ 0   : 00000000 00000001 deadc0de 80e613e8
[   12.545772] $ 4   : b0009808 08000000 00009808 00010000
[   12.551019] $ 8   : 00000000 81bc7948 0000783c 00000000
[   12.556266] $12   : 00007820 00000013 00000000 00000000
[   12.561513] $16   : 8185e010 81bc7948 00000001 81bc7910
[   12.566760] $20   : 00000019 00000007 00000013 00000001
[   12.572008] $24   : 00000000 80e614e0
[   12.577255] $28   : 81bc6000 81bc7900 00000002 80e0e22c
[   12.582503] Hi    : 00000001
[   12.585370] Lo    : 025c0000
[   12.588281] epc   : 80e0e238 ar5008_hw_attach_phy_ops+0xe9c/0x1dc4 [ath9k_hw]
[   12.595411] ra    : 80e0e22c ar5008_hw_attach_phy_ops+0xe90/0x1dc4 [ath9k_hw]
[   12.602522] Status: 1000fc03 KERNEL EXL IE
[   12.606722] Cause : 1080001c
[   12.609589] PrId  : 00019374 (MIPS 24Kc)
[   12.613500] Modules linked in: ath9k(+) ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80
211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_raw iptable
_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbdev ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_t
ables x_tables ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   12.681800] Process kmodloader (pid: 615, threadinfo=81bc6000, task=81998000, tls=77a72614)
[   12.690123] Stack : 00000000 00000000 00000000 0000000a 0000786c 0094128d 00007854 00000800
          00007820 f75ff6fc 00007824 00040000 00007868 0501e200 0000783c 54214514
          00007838 0e4548d8 00000000 8185e010 0001c000 8185e010 8185e300 00009860
          0000a2c4 80e613e8 81800964 00000001 00000000 80e0efb4 00000160 80e04ee8
          8185e22c 80e1c2f8 000186a0 00000000 8185e010 8185e300 00000000 00000000
          ...
[   12.725870] Call Trace:
[   12.728325] [<80e0e238>] ar5008_hw_attach_phy_ops+0xe9c/0x1dc4 [ath9k_hw]
[   12.735100]
[   12.736585]
Code: 3c050800  8e030008  34069808 <00452825> 0060f809  02002021  3c070080  8e020014  3c060080
[   12.746601] ---[ end trace 18cfdcc7e141f5dc ]---

fix folloing kernel Oops:

[   13.112479] cfg80211: World regulatory domain updated:
[   13.117691] cfg80211:  DFS Master region: unset
[   13.122033] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   13.131761] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   13.139750] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   13.147741] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   13.155735] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   13.165194] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   13.174663] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   13.182741] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   13.190733] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   13.252893] PPP generic driver version 2.4.2
[   13.259810] NET: Registered protocol family 24
[   13.302326] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   13.321186] Data bus error, epc == 80ce151c, ra == 80ce1518
[   13.326756] Oops[lede-project#1]:
[   13.329028] CPU: 0 PID: 615 Comm: kmodloader Not tainted 4.1.13 lede-project#1
[   13.335200] task: 81998000 ti: 81be8000 task.ti: 81be8000
[   13.340578] $ 0   : 00000000 00000001 deadc0de 80cc1400
[   13.345825] $ 4   : b0008048 b0000000 02000020 00000000
[   13.351072] $ 8   : 80ce14e0 00000000 00000000 00000000
[   13.356320] $12   : 00000000 00000013 00000000 32206265
[   13.361567] $16   : 02000020 ffffffff 00008048 80cc1400
[   13.366814] $20   : 00000002 00000002 00000000 00000002
[   13.372061] $24   : 00000001 00000000
[   13.377309] $28   : 81be8000 81be9950 00007894 80ce1518
[   13.382557] Hi    : 00000000
[   13.385432] Lo    : 19d60000
[   13.388393] epc   : 80ce151c ath_start_rfkill_poll+0x2dc/0x434 [ath9k]
[   13.394934] ra    : 80ce1518 ath_start_rfkill_poll+0x2d8/0x434 [ath9k]
[   13.401441] Status: 1000fc03 KERNEL EXL IE
[   13.405641] Cause : 1080001c
[   13.408509] PrId  : 00019374 (MIPS 24Kc)
[   13.412420] Modules linked in: ath9k(+) ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80
211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_raw iptable
_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbdev ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_t
ables x_tables ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   13.480719] Process kmodloader (pid: 615, threadinfo=81be8000, task=81998000, tls=77c70614)
[   13.489042] Stack : 803b0000 00000006 00020002 8185e010 00000004 8185e010 00000004 0000016d
          8185e300 80e0be54 00000001 00000000 00001720 80e03b40 8185e038 000002c7
          8185e010 8185e300 00000000 00000000 00000000 00001720 8185e038 00000000
          00000003 80e06994 1a000001 b8222222 220102d0 00000000 00360000 00000001
          20000000 00000000 00000003 17a0027e 00000000 00caa7f0 8185e010 803b0000
          ...
[   13.524788] Call Trace:
[   13.527263] [<80ce151c>] ath_start_rfkill_poll+0x2dc/0x434 [ath9k]
[   13.533486] [<80ce1518>] ath_start_rfkill_poll+0x2d8/0x434 [ath9k]
[   13.539668]
[   13.541150]
Code: 0c06f176  00852021  8e6509bc <02221024> 00508025  02002021  0c06f173  00b22821  02001021
[   13.551172] ---[ end trace e0dd66f5b661442b ]---

fix following kernel Oops:

[   12.311187] cfg80211: World regulatory domain updated:
[   12.316392] cfg80211:  DFS Master region: unset
[   12.320733] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   12.330462] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.338458] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   12.346450] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   12.354437] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   12.363901] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   12.373372] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   12.381448] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   12.389442] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   12.450263] PPP generic driver version 2.4.2
[   12.457166] NET: Registered protocol family 24
[   12.499286] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   12.521134] Data bus error, epc == 80e0e238, ra == 80e0e22c
[   12.526702] Oops[lede-project#1]:
[   12.528974] CPU: 0 PID: 615 Comm: kmodloader Not tainted 4.1.13 lede-project#1
[   12.535146] task: 81998000 ti: 81bc6000 task.ti: 81bc6000
[   12.540526] $ 0   : 00000000 00000001 deadc0de 80e613e8
[   12.545772] $ 4   : b0009808 08000000 00009808 00010000
[   12.551019] $ 8   : 00000000 81bc7948 0000783c 00000000
[   12.556266] $12   : 00007820 00000013 00000000 00000000
[   12.561513] $16   : 8185e010 81bc7948 00000001 81bc7910
[   12.566760] $20   : 00000019 00000007 00000013 00000001
[   12.572008] $24   : 00000000 80e614e0
[   12.577255] $28   : 81bc6000 81bc7900 00000002 80e0e22c
[   12.582503] Hi    : 00000001
[   12.585370] Lo    : 025c0000
[   12.588281] epc   : 80e0e238 ar5008_hw_attach_phy_ops+0xe9c/0x1dc4 [ath9k_hw]
[   12.595411] ra    : 80e0e22c ar5008_hw_attach_phy_ops+0xe90/0x1dc4 [ath9k_hw]
[   12.602522] Status: 1000fc03 KERNEL EXL IE
[   12.606722] Cause : 1080001c
[   12.609589] PrId  : 00019374 (MIPS 24Kc)
[   12.613500] Modules linked in: ath9k(+) ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80
211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_raw iptable
_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbdev ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_t
ables x_tables ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   12.681800] Process kmodloader (pid: 615, threadinfo=81bc6000, task=81998000, tls=77a72614)
[   12.690123] Stack : 00000000 00000000 00000000 0000000a 0000786c 0094128d 00007854 00000800
          00007820 f75ff6fc 00007824 00040000 00007868 0501e200 0000783c 54214514
          00007838 0e4548d8 00000000 8185e010 0001c000 8185e010 8185e300 00009860
          0000a2c4 80e613e8 81800964 00000001 00000000 80e0efb4 00000160 80e04ee8
          8185e22c 80e1c2f8 000186a0 00000000 8185e010 8185e300 00000000 00000000
          ...
[   12.725870] Call Trace:
[   12.728325] [<80e0e238>] ar5008_hw_attach_phy_ops+0xe9c/0x1dc4 [ath9k_hw]
[   12.735100]
[   12.736585]
Code: 3c050800  8e030008  34069808 <00452825> 0060f809  02002021  3c070080  8e020014  3c060080
[   12.746601] ---[ end trace 18cfdcc7e141f5dc ]---

fix folloing kernel Oops:

[   13.112479] cfg80211: World regulatory domain updated:
[   13.117691] cfg80211:  DFS Master region: unset
[   13.122033] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[   13.131761] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   13.139750] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[   13.147741] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[   13.155735] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[   13.165194] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[   13.174663] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[   13.182741] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[   13.190733] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[   13.252893] PPP generic driver version 2.4.2
[   13.259810] NET: Registered protocol family 24
[   13.302326] PCI: Enabling device 0000:00:11.0 (0000 -> 0002)
[   13.321186] Data bus error, epc == 80ce151c, ra == 80ce1518
[   13.326756] Oops[lede-project#1]:
[   13.329028] CPU: 0 PID: 615 Comm: kmodloader Not tainted 4.1.13 lede-project#1
[   13.335200] task: 81998000 ti: 81be8000 task.ti: 81be8000
[   13.340578] $ 0   : 00000000 00000001 deadc0de 80cc1400
[   13.345825] $ 4   : b0008048 b0000000 02000020 00000000
[   13.351072] $ 8   : 80ce14e0 00000000 00000000 00000000
[   13.356320] $12   : 00000000 00000013 00000000 32206265
[   13.361567] $16   : 02000020 ffffffff 00008048 80cc1400
[   13.366814] $20   : 00000002 00000002 00000000 00000002
[   13.372061] $24   : 00000001 00000000
[   13.377309] $28   : 81be8000 81be9950 00007894 80ce1518
[   13.382557] Hi    : 00000000
[   13.385432] Lo    : 19d60000
[   13.388393] epc   : 80ce151c ath_start_rfkill_poll+0x2dc/0x434 [ath9k]
[   13.394934] ra    : 80ce1518 ath_start_rfkill_poll+0x2d8/0x434 [ath9k]
[   13.401441] Status: 1000fc03 KERNEL EXL IE
[   13.405641] Cause : 1080001c
[   13.408509] PrId  : 00019374 (MIPS 24Kc)
[   13.412420] Modules linked in: ath9k(+) ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath pppox ppp_generic nf_nat_ipv4 nf_conntrack_ipv6 nf_conntrack_ipv4 mac80
211 ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_id xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG
 xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_nat nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_raw iptable
_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbdev ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_raw ip6table_mangle ip6table_filter ip6_t
ables x_tables ohci_platform ohci_hcd ehci_platform ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[   13.480719] Process kmodloader (pid: 615, threadinfo=81be8000, task=81998000, tls=77c70614)
[   13.489042] Stack : 803b0000 00000006 00020002 8185e010 00000004 8185e010 00000004 0000016d
          8185e300 80e0be54 00000001 00000000 00001720 80e03b40 8185e038 000002c7
          8185e010 8185e300 00000000 00000000 00000000 00001720 8185e038 00000000
          00000003 80e06994 1a000001 b8222222 220102d0 00000000 00360000 00000001
          20000000 00000000 00000003 17a0027e 00000000 00caa7f0 8185e010 803b0000
          ...
[   13.524788] Call Trace:
[   13.527263] [<80ce151c>] ath_start_rfkill_poll+0x2dc/0x434 [ath9k]
[   13.533486] [<80ce1518>] ath_start_rfkill_poll+0x2d8/0x434 [ath9k]
[   13.539668]
[   13.541150]
Code: 0c06f176  00852021  8e6509bc <02221024> 00508025  02002021  0c06f173  00b22821  02001021
[   13.551172] ---[ end trace e0dd66f5b661442b ]---

This reverts commit 7af1fb9.

With the RPS balancer patch, both my APU2s are crashing, sometimes just
after a few minutes of uptime.

[ 6241.170132] BUG: unable to handle kernel paging request at ffffffffa20a75a8
[ 6241.177248] IP: get_rps_cpu+0x41c/0x440
[ 6241.181140] PGD 2012067 P4D 2012067 PUD 2013063 PMD 0
[ 6241.186370] Oops: 0000 [#1] SMP NOPTI
[ 6241.190080] Modules linked in: pppoe ppp_async pptp pppox ppp_mppe ppp_generic nf_nat_pptp nf_flow_table_ipv6 nf_flow_table_ipv4 nf_flow_table_inet nf_conntrack_pptp lzo iptable_nat ipt_REJECT ipt_MASQUERADE ftdi_sio xt_time xt_tcpudp xt_tcpmss xt_string xt_statistic xt_state xt_recent xt_quota xt_policy xt_pkttype xt_owner xt_nat xt_multiport xt_mark xt_mac xt_limit xt_length xt_hl xt_helper xt_esp xt_ecn xt_dscp xt_conntrack xt_connmark xt_connlimit xt_connbytes xt_comment xt_bpf xt_addrtype xt_TCPMSS xt_REDIRECT xt_NFQUEUE xt_LOG xt_HL xt_FLOWOFFLOAD xt_DSCP xt_CT xt_CLASSIFY wireguard usbserial ts_fsm ts_bm spidev slhc rfcomm nft_set_rbtree nft_set_hash nft_reject_ipv6 nft_reject_ipv4 nft_reject_inet nft_reject nft_redir_ipv4 nft_redir nft_quota nft_numgen nft_nat nft_meta nft_masq_ipv4 nft_masq
[ 6241.261735]  nft_log nft_limit nft_flow_offload nft_exthdr nft_ct nft_counter nft_chain_route_ipv6 nft_chain_route_ipv4 nft_chain_nat_ipv4 nfnetlink_queue nf_tables_ipv6 nf_tables_ipv4 nf_tables_inet nf_tables nf_reject_ipv4 nf_nat_tftp nf_nat_snmp_basic nf_nat_sip nf_nat_redirect nf_nat_proto_gre nf_nat_masquerade_ipv6 nf_nat_masquerade_ipv4 nf_nat_irc nf_conntrack_ipv6 nf_nat_ipv6 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat_h323 nf_nat_ftp nf_nat_amanda nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_tftp nf_conntrack_snmp nf_conntrack_sip nf_conntrack_rtcache nf_conntrack_proto_gre nf_conntrack_netlink nf_conntrack_irc nf_conntrack_h323 nf_conntrack_ftp nf_conntrack_broadcast ts_kmp nf_conntrack_amanda macvlan lzo_decompress lzo_compress libcrc32c kvm irqbypass
[ 6241.333427]  iptable_raw iptable_mangle iptable_filter ipt_ah ipt_ECN ip_tables hidp hci_uart crc_ccitt cdc_acm btusb btintel br_netfilter bnep bluetooth sch_cake tcp_bbr sch_teql em_nbyte sch_codel sch_prio sch_pie act_ipt em_meta sch_gred sch_dsmark cls_basic em_cmp em_text act_police sch_sfq sch_fq sch_multiq sch_red act_connmark nf_conntrack act_skbedit act_mirred em_u32 cls_u32 cls_tcindex cls_flow cls_route cls_fw sch_tbf sch_htb sch_hfsc sch_ingress configs evdev i2c_piix4 kfifo_buf industrialio i2c_dev xt_set ip_set_list_set ip_set_hash_netiface ip_set_hash_netport ip_set_hash_netnet ip_set_hash_net ip_set_hash_netportnet ip_set_hash_mac ip_set_hash_ipportnet ip_set_hash_ipportip ip_set_hash_ipport ip_set_hash_ipmark ip_set_hash_ip ip_set_bitmap_port ip_set_bitmap_ipmac ip_set_bitmap_ip ip_set
[ 6241.405252]  nfnetlink ip6t_REJECT nf_reject_ipv6 nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables x_tables ip_gre gre igb i2c_algo_bit ifb ip6_vti ip_vti sit l2tp_netlink l2tp_core ipcomp6 xfrm6_tunnel xfrm6_mode_tunnel xfrm6_mode_transport xfrm6_mode_beet esp6 ah6 ipcomp xfrm4_tunnel xfrm4_mode_tunnel xfrm4_mode_transport xfrm4_mode_beet esp4 ah4 ip6_tunnel tunnel6 tunnel4 ip_tunnel veth snd_compress snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_rawmidi snd_seq_device snd_hwdep snd soundcore mpls_gso mpls_iptunnel mpls_router af_key xfrm_user xfrm_ipcomp xfrm_algo br2684 atm regmap_mmio vxlan udp_tunnel ip6_udp_tunnel ecdh_generic sha512_ssse3 sha512_generic sha256_ssse3 sha1_ssse3 seqiv jitterentropy_rng drbg md5 kpp ccp_crypto rsa_generic mpi asn1_decoder akcipher ccp sha256_generic
[ 6241.477726]  sha1_generic hmac ghash_generic gcm echainiv des_generic deflate zlib_deflate ctr cmac ccm cbc authenc crypto_acompress sdhci_pltfm pf_ring sp5100_tco leds_apu2 gpio_nct5104d button_hotplug ptp pps_core
[ 6241.497122] CPU: 3 PID: 0 Comm: swapper/3 Not tainted 4.14.73 #0
[ 6241.503198] Hardware name: PC Engines apu2/apu2, BIOS v4.8.0.2 20180705
[ 6241.509858] task: ffff88012a0d8000 task.stack: ffffc90000070000
[ 6241.515841] RIP: 0010:get_rps_cpu+0x41c/0x440
[ 6241.520246] RSP: 0018:ffff88012ed83db0 EFLAGS: 00010286
[ 6241.525511] RAX: 00000000ffffffff RBX: 0000000000011ae8 RCX: 0000000000000001
[ 6241.532737] RDX: 00000000ffffffff RSI: ffff88012a0d8788 RDI: 0000000000000282
[ 6241.539956] RBP: ffff88012ed83e00 R08: 0000000000000001 R09: 0000000000000000
[ 6241.547183] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff82dae2e0
[ 6241.554403] R13: ffff880124de4480 R14: 0000000000000000 R15: ffff880128120000
[ 6241.561625] FS:  0000000000000000(0000) GS:ffff88012ed80000(0000) knlGS:0000000000000000
[ 6241.569820] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 6241.575651] CR2: ffffffffa20a75a8 CR3: 00000001251da000 CR4: 00000000000406e0
[ 6241.582830] Call Trace:
[ 6241.585322]  <IRQ>
[ 6241.587372]  ? lock_acquire+0x59/0x80
[ 6241.591102]  netif_receive_skb_internal+0x1e4/0x2d0
[ 6241.596037]  napi_gro_receive+0x48/0x90
[ 6241.599948]  igb_alloc_rx_buffers+0xc97/0x1b60 [igb]
[ 6241.604981]  ? note_gp_changes+0x76/0xc0
[ 6241.608963]  net_rx_action+0x10c/0x280
[ 6241.612752]  __do_softirq+0xf0/0x22d
[ 6241.616375]  irq_exit+0x5e/0xa0
[ 6241.619573]  do_IRQ+0xee/0x110
[ 6241.622682]  common_interrupt+0x8b/0x8b
[ 6241.626556]  </IRQ>
[ 6241.628699] RIP: 0010:native_safe_halt+0x6/0x10
[ 6241.633260] RSP: 0018:ffffc90000073e10 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff3d
[ 6241.640910] RAX: ffff88012a0d8000 RBX: ffff88012a190c00 RCX: 0000000000000000
[ 6241.648110] RDX: ffff88012a0d8000 RSI: 0000000000000001 RDI: ffff88012a0d8000
[ 6241.655354] RBP: ffffc90000073e10 R08: 0000000000000006 R09: 0000000000000000
[ 6241.662554] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88012a190c64
[ 6241.669791] R13: 0000000000000001 R14: 0000000000000001 R15: 0000000000000001
[ 6241.676986]  acpi_safe_halt.part.9+0xe/0x20
[ 6241.681226]  acpi_idle_do_entry+0x2c/0x40
[ 6241.685325]  acpi_idle_enter+0x1ee/0x2b0
[ 6241.689298]  ? sched_clock+0x9/0x10
[ 6241.692839]  cpuidle_enter_state+0x1f2/0x230
[ 6241.697162]  cpuidle_enter+0x12/0x20
[ 6241.700803]  call_cpuidle+0x38/0x40
[ 6241.704335]  do_idle+0xed/0x160
[ 6241.707557]  cpu_startup_entry+0x6e/0x70
[ 6241.711557]  start_secondary+0x1b4/0x1d0
[ 6241.715536]  secondary_startup_64+0xa5/0xb0
[ 6241.719777] Code: d4 48 8d 04 9b 48 8b 35 53 a7 ac 00 48 8d 1c 43 48 83 c6 64 48 c1 e3 03 48 8d bb e8 e2 da 82 e8 cb a9 ba ff 41 8b 14 1c 48 89 d0 <48> 0f a3 15 dc dc b6 00 0f 83 46 fc ff ff 48 83 c4 28 5b 41 5c
[ 6241.739100] RIP: get_rps_cpu+0x41c/0x440 RSP: ffff88012ed83db0
[ 6241.744993] CR2: ffffffffa20a75a8
[ 6241.748373] ---[ end trace 77367d9f9830d5bc ]---

Signed-off-by: Stijn Tintel <[email protected]>

When enabling atomic-sleep-debugging options in the kernel,
following splat is seen when disabling the interface (which happens on boot):

[   10.892878] eth0: link down
[   10.896788] BUG: sleeping function called from invalid context at net/core/dev.c:5563
[   10.904730] in_atomic(): 1, irqs_disabled(): 1, pid: 425, name: ip
[   10.911004] 2 locks held by ip/425:
[   10.914539]  #0:  (rtnl_mutex){....}, at: [<80377474>] rtnetlink_rcv_msg+0x2d8/0x380
[   10.922441]  #1:  (&(&ag->lock)->rlock){....}, at: [<80330158>] ag71xx_hw_disable+0x24/0x94
[   10.930976] CPU: 0 PID: 425 Comm: ip Not tainted 4.14.136 #0
[   10.936716] Stack : 805e0000 80589228 80557404 876998ec 80610000 80610000 87cdcafc 805b5327
[   10.945233]         80551534 000001a9 8061386c 87699ccc 87cfb180 00000001 876998a0 84f70903
[   10.953751]         00000000 00000000 80b00000 8769979c 6a7407fa 00000000 00000007 00000000
[   10.962270]         000000b7 16d0954a 000000b6 00000000 80000000 87cb658c 87cb65b0 00000001
[   10.970787]         8046f97c 87699ccc 87cfb180 87ff2810 00000003 802ce724 0806e098 80610000
[   10.979306]         ...
[   10.981797] Call Trace:
[   10.984287] [<8006cb0c>] show_stack+0x58/0x100
[   10.988814] [<800aab34>] ___might_sleep+0x100/0x120
[   10.993774] [<8035c434>] napi_disable+0x30/0xd8
[   10.998377] [<80330198>] ag71xx_hw_disable+0x64/0x94
[   11.003418] [<8033069c>] ag71xx_stop+0x24/0x38
[   11.007959] [<80359e30>] __dev_close_many+0xcc/0x104
[   11.013009] [<80362eac>] __dev_change_flags+0xc8/0x1ac
[   11.018227] [<80362fb8>] dev_change_flags+0x28/0x70
[   11.023182] [<80376890>] do_setlink+0x31c/0x91c
[   11.027786] [<80379360>] rtnl_newlink+0x3ec/0x7f8
[   11.032563] [<80377498>] rtnetlink_rcv_msg+0x2fc/0x380
[   11.037799] [<8039a734>] netlink_rcv_skb+0xd4/0x178
[   11.042754] [<80399d10>] netlink_unicast+0x168/0x250
[   11.047796] [<8039a2d4>] netlink_sendmsg+0x3d8/0x434
[   11.052841] [<8033f0e4>] ___sys_sendmsg+0x1dc/0x290
[   11.057794] [<80340140>] __sys_sendmsg+0x54/0x84
[   11.062495] [<8007212c>] syscall_common+0x34/0x58

This is caused by calling napi_disable() while holding the spinlock.

Fix it by omitting the spinlock, which is not required here
Extensively tested on GL-MiFi, RB-912 and RB-922 hardware

Signed-off-by: Koen Vandeputte <[email protected]>

When enabling atomic-sleep-debugging options in the kernel,
following splat is seen when disabling the interface (which happens on boot):

[   10.892878] eth0: link down
[   10.896788] BUG: sleeping function called from invalid context at net/core/dev.c:5563
[   10.904730] in_atomic(): 1, irqs_disabled(): 1, pid: 425, name: ip
[   10.911004] 2 locks held by ip/425:
[   10.914539]  #0:  (rtnl_mutex){....}, at: [<80377474>] rtnetlink_rcv_msg+0x2d8/0x380
[   10.922441]  #1:  (&(&ag->lock)->rlock){....}, at: [<80330158>] ag71xx_hw_disable+0x24/0x94
[   10.930976] CPU: 0 PID: 425 Comm: ip Not tainted 4.14.136 #0
[   10.936716] Stack : 805e0000 80589228 80557404 876998ec 80610000 80610000 87cdcafc 805b5327
[   10.945233]         80551534 000001a9 8061386c 87699ccc 87cfb180 00000001 876998a0 84f70903
[   10.953751]         00000000 00000000 80b00000 8769979c 6a7407fa 00000000 00000007 00000000
[   10.962270]         000000b7 16d0954a 000000b6 00000000 80000000 87cb658c 87cb65b0 00000001
[   10.970787]         8046f97c 87699ccc 87cfb180 87ff2810 00000003 802ce724 0806e098 80610000
[   10.979306]         ...
[   10.981797] Call Trace:
[   10.984287] [<8006cb0c>] show_stack+0x58/0x100
[   10.988814] [<800aab34>] ___might_sleep+0x100/0x120
[   10.993774] [<8035c434>] napi_disable+0x30/0xd8
[   10.998377] [<80330198>] ag71xx_hw_disable+0x64/0x94
[   11.003418] [<8033069c>] ag71xx_stop+0x24/0x38
[   11.007959] [<80359e30>] __dev_close_many+0xcc/0x104
[   11.013009] [<80362eac>] __dev_change_flags+0xc8/0x1ac
[   11.018227] [<80362fb8>] dev_change_flags+0x28/0x70
[   11.023182] [<80376890>] do_setlink+0x31c/0x91c
[   11.027786] [<80379360>] rtnl_newlink+0x3ec/0x7f8
[   11.032563] [<80377498>] rtnetlink_rcv_msg+0x2fc/0x380
[   11.037799] [<8039a734>] netlink_rcv_skb+0xd4/0x178
[   11.042754] [<80399d10>] netlink_unicast+0x168/0x250
[   11.047796] [<8039a2d4>] netlink_sendmsg+0x3d8/0x434
[   11.052841] [<8033f0e4>] ___sys_sendmsg+0x1dc/0x290
[   11.057794] [<80340140>] __sys_sendmsg+0x54/0x84
[   11.062495] [<8007212c>] syscall_common+0x34/0x58

This is caused by calling napi_disable() while holding the spinlock.

Fix it by omitting the spinlock, which is not required here
Extensively tested on GL-MiFi, RB-912 and RB-922 hardware

Signed-off-by: Koen Vandeputte <[email protected]>

Fixes a build error seen when applying the kernel patches.

Applying patch generic/435-mtd-add-routerbootpart-parser-config.patch
patching file drivers/mtd/parsers/Kconfig
Hunk #1 FAILED at 160.
1 out of 1 hunk FAILED -- rejects in file drivers/mtd/parsers/Kconfig
patching file drivers/mtd/parsers/Makefile
Hunk #1 FAILED at 10.
1 out of 1 hunk FAILED -- rejects in file drivers/mtd/parsers/Makefile

This was missed as 5.4 is currently set as testing kernel
while the main kernel being used is 4.19

Fixes: 2976e42 ("generic: routerboot partition build bits")
Signed-off-by: Koen Vandeputte <[email protected]>

The Ubiquiti Network airCube AC is a cube shaped device supporting
2.4 GHz and 5 GHz with internal 2x2 MIMO antennas.
It can be powered with either one of:
 - 24v power supply with 3.0mm x 1.0mm barrel plug
 - 24v passive PoE on first LAN port
There are four 10/100/1000 Mbps ports (1 * WAN + 3 * LAN).
First LAN port have optional PoE passthrough to the WAN port.

SoC:       Qualcomm / Atheros AR9342
RAM:       64 MB DDR2
Flash:     16 MB SPI NOR
Ethernet:  4x 10/100/1000 Mbps (1 WAN + 3 LAN)
LEDS:      1x via a SPI controller (not yet supported)
Buttons:   1x Reset
Serial:    1x (only RX and TX); 115200 baud, 8N1

Missing features:
 - LED control is not supported

Physical to internal switch port mapping:
 - physical port #1 (poe in) = switchport 2
 - physical port #2 = switchport 3
 - physical port #3 = switchport 5
 - physical port #4 (wan/poe out) = switchport 4

Factory update is tested and is the same as for Ubiquiti AirCube ISP
hence the shared configuration between that devices.

Signed-off-by: Roman Kuzmitskii <[email protected]>

SMP isn't supported on BCM6358 since it has a shared TLB. Some boards boot
with CPU #1 instead of CPU #0, and this is currently not supported do to a
smp-bmips bug.

Signed-off-by: Álvaro Fernández Rojas <[email protected]>

The code uses get_mtd_device_nm() which must be followed by a call to
put_mtd_device() once the handle is no longer used.

This fixes spurious shutdown console messages such as:
[   83.099037] Removing MTD device #1 (hard_config) with use count 1

Reported-by: Koen Vandeputte <[email protected]>
Tested-by: Koen Vandeputte <[email protected]>
Signed-off-by: Thibaut VARÈNE <[email protected]>
[Backported from master]
Signed-off-by: Koen Vandeputte <[email protected]>

ag71xx_probe is registering ag71xx_interrupt as handler for the gmac0/gmac1
interrupts. The handler is trying to use napi_schedule to handle the
processing of packets. But the netif_napi_add for this device is
called a lot later in ag71xx_probe.

It can therefore happen that a still running gmac0/gmac1 is triggering the
interrupt handler with a bit from AG71XX_INT_POLL set in
AG71XX_REG_INT_STATUS. The handler will then call napi_schedule and the
napi code will crash the system because the ag->napi is not yet
initialized:

  libphy: Fixed MDIO Bus: probed
  CPU 0 Unable to handle kernel paging request at virtual address 00000000, epc == 00000000, ra == 81373408
  Oops[#1]:
  CPU: 0 PID: 1 Comm: swapper Not tainted 5.4.152 #0
  $ 0   : 00000000 00000001 00000000 8280bf28
  $ 4   : 82a98cb0 00000000 81620000 00200140
  $ 8   : 00000000 00000000 74657272 7570743a
  $12   : 0000005b 8280bdb9 ffffffff ffffffff
  $16   : 00000001 82a98cb0 00000000 8280bf27
  $20   : 8280bf28 81620000 ffff8b00 8280bf30
  $24   : 00000000 8125af9c
  $28   : 82828000 8280bed8 81610000 81373408
  Hi    : 00005fff
  Lo    : 2e48f657
  epc   : 00000000 0x0
  ra    : 81373408 __napi_poll+0x3c/0x11c
  Status: 1100dc03 KERNEL EXL IE
  Cause : 00800008 (ExcCode 02)
  BadVA : 00000000
  PrId  : 00019750 (MIPS 74Kc)
  Modules linked in:
  Process swapper (pid: 1, threadinfo=(ptrval), task=(ptrval), tls=00000000)
  Stack : ffff8afb ffff8afa 81620000 00200140 00000000 82a98cb0 00000008 0000012c
          81625620 81373684 ffffffff ffffffff ffffffef 00000008 816153d8 81620000
          815b0d60 815bbd54 00000000 81753700 8280bf28 8280bf28 8280bf30 8280bf30
          81753748 00000008 00000003 00000004 0000000c 00000100 3fffffff 8175373c
          816059f0 814ddb48 00000001 8160ab30 81615488 810618bc 00000006 00000000
          ...
  Call Trace:

  [<81373684>] net_rx_action+0xfc/0x26c
  [<814ddb48>] __do_softirq+0x118/0x2ec
  [<810618bc>] handle_percpu_irq+0x50/0x80
  [<8125ab8c>] plat_irq_dispatch+0x94/0xc8
  [<81004e98>] handle_int+0x138/0x144

  Code: (Bad address in epc)

  ---[ end trace a60d797432b656b2 ]---

The gmcc0/gmac1 must be brought in a state in which it doesn't signal a
AG71XX_INT_POLL related status bits as interrupt before registering the
interrupt handler. ag71xx_hw_start will take care of re-initializing the
AG71XX_REG_INT_ENABLE.

Fixes: f529a37 ("surprise :p")
Signed-off-by: Sven Eckelmann <[email protected]>

Martin Kennedy reported:
|Presently, I get this kernel panic on mpc85xx (Aerohive HiveAP 370)
|on OpenWrt 'master' which occurs right as the second processor is
|initialized:
|
|[    0.478804] rcu: Hierarchical SRCU implementation.
|[    0.535569] dyndbg: Ignore empty _ddebug table in a CONFIG_DYNAMIC_DEBUG_CORE build
|[    0.627233] smp: Bringing up secondary CPUs ...
|[    0.681659] kernel tried to execute user page (0) - exploit attempt? (uid: 0)
|[    0.766618] BUG: Unable to handle kernel instruction fetch (NULL pointer?)
|[    0.848899] Faulting instruction address: 0x00000000
|[    0.908273] Oops: Kernel access of bad area, sig: 11 [#1]
|[    0.972851] BE PAGE_SIZE=4K SMP NR_CPUS=2 P1020 RDB
|[    1.031179] Modules linked in:
|[    1.067640] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.80 #0
|[    1.139507] NIP:  00000000 LR: c0021d2c CTR: 00000000
|[    1.199921] REGS: c1051cf0 TRAP: 0400   Not tainted  (5.10.80)
|[...]
|[    1.758220] NIP [00000000] 0x0
|[    1.794688] LR [c0021d2c] smp_85xx_kick_cpu+0xe8/0x568
|[    1.856126] Call Trace:
|[    1.885295] [c1051da8] [c0021cb8] smp_85xx_kick_cpu+0x74/0x568 (unreliable)
|[    1.968633] [c1051de8] [c0011460] __cpu_up+0xc0/0x228
|[    2.029038] [c1051e18] [c0031bbc] bringup_cpu+0x30/0x224
|[    2.092572] [c1051e48] [c0031f3c] cpu_up.constprop.0+0x180/0x33c
|[..]
|[    2.727952] ---[ end trace 9b796a4bafb6bc14 ]---
|[    3.800879] Kernel panic - not syncing: Fatal exception
|[    3.862353] Rebooting in 1 seconds..
|[    5.905097] System Halted, OK to turn off power
|
|I bisected this down to commit 3ae5da5 ("kernel: bump 5.10 to 5.10.80");
|that is, I don't get the panic right before this commit, but I do after.

He reported the issue upstream and Xiaoming Ni from huawei came up with
the patch (that is on it's way to upstream). While the AP370 is not in
Openwrt, this will likely affect other SMP P1020 devices OpenWrt ships
with: like the AP330, Enterasys WS-AP3710i, etc.

Reported-by: Martin Kennedy <[email protected]>
Tested-by: Martin Kennedy <[email protected]>
Signed-off-by: Christian Lamparter <[email protected]>

Zbtlink ZBT-WG1602 is a Wi-Fi router intendent to use with WWAN
(UMTS/LTE/3G/4G) modems. The router board offsers a couple of miniPCIe
slots with USB and SIM only and another one pure miniPCIe slot as well
as five Gigabit Ethernet ports (4xLAN + WAN).

Specification:

* SoC: MT7621A
* RAM: 256/512 MiB
* Flash: 16/32 MiB (SPI NOR)
* external watchdog (looks like Torexsemi XC6131B)
* Eth: 10/100/1000 Mbps Ethernet x5 ports (4xLAN + WAN)
* WLAN 2GHz: MT7603EN (.11n, MIMO 2x2)
* WLAN 5GHz: MT7612EN (.11ac, MIMO 2x2)
* WLAN Ants: detachable x2, shared by 2GHz & 5GHz radios
* miniPCIe: 2x slots with USB&SIM + 1x slot with regular PCIe bus
* WWAN Ants: detachable x4
* External storage: microSD (SDXC) slot
* USB: 2.0 Type-A port
* LED: 11 (5 per Eth phy, 3 SoC controlled, 2 WLAN 2/5 controlled, 1
       power indicator)
* Button: 1 (reset)
* UART: console (115200 baud)
* Power: DC jack (12 V / 2.5 A)

Additional HW information:

* SoC USB port #1 is shared by internal miniPCIe slot and external
  Type-A USB port, USB D+/D- lines are toggled between ports using a
  GPIO controlled DPDT switch.
* Power of the USB enabled miniPCIe slots can be individually controlled
  using dedicated GPIO lines.
* Vendor firmware feeds the external watchdog with 1s pulses. GPIO
  watchdog driver is able to either generate a 1us pulses or toggle the
  output line. 1us is not enough for the external watchod timer, so
  the line toggling driver mode is utilized.

Installation:

Vendor's firmware is OpenWrt (LEDE) based, so the sysupgrade image can
be directly used to install OpenWrt. Firmware must be upgraded using the
'force' and 'do not save configuration' command line options (or
correspondig web interface checkboxes) since the vendor firmware is from
the pre-DSA era.

Signed-off-by: Sergey Ryazanov <[email protected]>

Ticerex on the OpenWrt Forum reported a gnarly crash when
he was using Samsung 840 and 850 EVOs with his MyBook Live:

| BUG: Kernel NULL pointer dereference at 0x00000000
| Faulting instruction address: 0xc03ed4b8
| Oops: Kernel access of bad area, sig: 11 [#1]
| BE PAGE_SIZE=4K PowerPC 44x Platform
| CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0
| NIP:  c03ed4b8 LR: c03d27e8 CTR: c03ed36c
| REGS: cfa59950 TRAP: 0300   Not tainted  (5.4.163)
| MSR:  00021000 <CE,ME>  CR: 42000222  XER: 00000000
| DEAR: 00000000 ESR: 00000000
| GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...]
| [..]
| NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254
| LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| Call Trace:
| [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable)
| [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524
| [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0
| [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204
| [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130
| [...]

This turned out this is an issue with upstream changing
ATA_TAG_INTERNAL's value from 31 to 32 during 4.18 release.
Update "SATA_DWC_QCMD_MAX" to account for that.

Link: https://forum.openwrt.org/t/my-book-live-duo-reboot-loop/122464
Signed-off-by: Christian Lamparter <[email protected]>

Ticerex on the OpenWrt Forum reported a gnarly crash when
he was using Samsung 840 and 850 EVOs with his MyBook Live:

| BUG: Kernel NULL pointer dereference at 0x00000000
| Faulting instruction address: 0xc03ed4b8
| Oops: Kernel access of bad area, sig: 11 [#1]
| BE PAGE_SIZE=4K PowerPC 44x Platform
| CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0
| NIP:  c03ed4b8 LR: c03d27e8 CTR: c03ed36c
| REGS: cfa59950 TRAP: 0300   Not tainted  (5.4.163)
| MSR:  00021000 <CE,ME>  CR: 42000222  XER: 00000000
| DEAR: 00000000 ESR: 00000000
| GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...]
| [..]
| NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254
| LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| Call Trace:
| [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable)
| [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524
| [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0
| [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204
| [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130
| [...]

This turned out this is an issue with upstream changing
ATA_TAG_INTERNAL's value from 31 to 32 during 4.18 release.
Update "SATA_DWC_QCMD_MAX" to account for that.

Link: https://forum.openwrt.org/t/my-book-live-duo-reboot-loop/122464
Signed-off-by: Christian Lamparter <[email protected]>
(cherry picked from commit 5ac672cfab60e90ab8a0bf3491fa2a27619d22d6)

Ticerex on the OpenWrt Forum reported a gnarly crash when
he was using Samsung 840 and 850 EVOs with his MyBook Live:

| BUG: Kernel NULL pointer dereference at 0x00000000
| Faulting instruction address: 0xc03ed4b8
| Oops: Kernel access of bad area, sig: 11 [#1]
| BE PAGE_SIZE=4K PowerPC 44x Platform
| CPU: 0 PID: 362 Comm: scsi_eh_1 Not tainted 5.4.163 #0
| NIP:  c03ed4b8 LR: c03d27e8 CTR: c03ed36c
| REGS: cfa59950 TRAP: 0300   Not tainted  (5.4.163)
| MSR:  00021000 <CE,ME>  CR: 42000222  XER: 00000000
| DEAR: 00000000 ESR: 00000000
| GPR00: c03d27e8 cfa59a08 cfa55fe0 00000000 0fa46bc0 [...]
| [..]
| NIP [c03ed4b8] sata_dwc_qc_issue+0x14c/0x254
| LR [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| Call Trace:
| [cfa59a08] [c003f4e0] __cancel_work_timer+0x124/0x194 (unreliable)
| [cfa59a78] [c03d27e8] ata_qc_issue+0x1c8/0x2dc
| [cfa59a98] [c03d2b3c] ata_exec_internal_sg+0x240/0x524
| [cfa59b08] [c03d2e98] ata_exec_internal+0x78/0xe0
| [cfa59b58] [c03d30fc] ata_read_log_page.part.38+0x1dc/0x204
| [cfa59bc8] [c03d324c] ata_identify_page_supported+0x68/0x130
| [...]

This turned out this is an issue with upstream changing
ATA_TAG_INTERNAL's value from 31 to 32 during 4.18 release.
Update "SATA_DWC_QCMD_MAX" to account for that.

Link: https://forum.openwrt.org/t/my-book-live-duo-reboot-loop/122464
Signed-off-by: Christian Lamparter <[email protected]>
(cherry picked from commit e95dec8)

Original patch: cifsd-team/ksmbd-tools#227
adapted for ksmbd kernel module v3.4.3 by me.
Fixes crash in v3.4.3 only. Use original patch when updating to v3.4.4
as this one will fail hunk #1.

Signed-off-by: Marius Dinu <[email protected]>

Turris MOX randomly crashes up, when there is connected miniPCIe card
MediaTek MT7915 with the following output:

[   71.457007] Internal error: synchronous external abort: 96000210 [#1] SMP
[   71.464021] Modules linked in: xt_connlimit pppoe ppp_async nf_conncount iptable_nat ath9k xt_state xt_nat xt_helper xt_conntrack xt_connmark xt_connbytes xt_REDIREl
[   71.464187]  btintel br_netfilter bnep bluetooth ath9k_hw ath10k_pci ath10k_core ath sch_tbf sch_ingress sch_htb sch_hfsc em_u32 cls_u32 cls_tcindex cls_route cls_mg
[   71.629589] CPU: 0 PID: 1298 Comm: kworker/u5:3 Not tainted 5.4.114 #0
[   71.636319] Hardware name: CZ.NIC Turris Mox Board (DT)
[   71.641725] Workqueue: napi_workq napi_workfn
[   71.646221] pstate: 80400085 (Nzcv daIf +PAN -UAO)
[   71.651169] pc : mt76_set_irq_mask+0x118/0x150 [mt76]
[   71.656385] lr : mt7915_init_debugfs+0x358/0x368 [mt7915e]
[   71.662038] sp : ffffffc010003cd0
[   71.665451] x29: ffffffc010003cd0 x28: 0000000000000060
[   71.670929] x27: ffffffc010a56f98 x26: ffffffc010c0fa9a
[   71.676407] x25: ffffffc010ba8788 x24: ffffff803e01fe00
[   71.681885] x23: 0000000000000030 x22: ffffffc010003dc4
[   71.687361] x21: 0000000000000000 x20: ffffff803e01fea4
[   71.692839] x19: ffffff803cb725c0 x18: 000000002d660780
[   71.698317] x17: 0000000000000000 x16: 0000000000000001
[   71.703795] x15: 0000000000005ee0 x14: ffffffc010d1d000
[   71.709272] x13: 0000000000002f70 x12: 0000000000000000
[   71.714749] x11: 0000000000000000 x10: 0000000000000040
[   71.720226] x9 : ffffffc010bbe980 x8 : ffffffc010bbe978
[   71.725704] x7 : ffffff803e4003f0 x6 : 0000000000000000
[   71.731181] x5 : ffffffc02f240000 x4 : ffffffc010003e00
[   71.736658] x3 : 0000000000000000 x2 : ffffffc008e3f230
[   71.742135] x1 : 00000000000d7010 x0 : ffffffc0114d7010
[   71.747613] Call trace:
[   71.750137]  mt76_set_irq_mask+0x118/0x150 [mt76]
[   71.754990]  mt7915_dual_hif_set_irq_mask+0x108/0xdc0 [mt7915e]
[   71.761098]  __handle_irq_event_percpu+0x6c/0x170
[   71.765950]  handle_irq_event_percpu+0x34/0x88
[   71.770531]  handle_irq_event+0x40/0xb0
[   71.774486]  handle_level_irq+0xe0/0x170
[   71.778530]  generic_handle_irq+0x24/0x38
[   71.782667]  advk_pcie_irq_handler+0x11c/0x238
[   71.787249]  __handle_irq_event_percpu+0x6c/0x170
[   71.792099]  handle_irq_event_percpu+0x34/0x88
[   71.796680]  handle_irq_event+0x40/0xb0
[   71.800633]  handle_fasteoi_irq+0xdc/0x190
[   71.804855]  generic_handle_irq+0x24/0x38
[   71.808988]  __handle_domain_irq+0x60/0xb8
[   71.813213]  gic_handle_irq+0x8c/0x198
[   71.817077]  el1_irq+0xf0/0x1c0
[   71.820314]  el1_da+0xc/0xc0
[   71.823288]  mt76_set_irq_mask+0x118/0x150 [mt76]
[   71.828141]  mt7915_mac_tx_free+0x4c4/0x828 [mt7915e]
[   71.833352]  mt7915_queue_rx_skb+0x5c/0xa8 [mt7915e]
[   71.838473]  mt76_dma_cleanup+0x89c/0x1248 [mt76]
[   71.843329]  __napi_poll+0x38/0xf8
[   71.846835]  napi_workfn+0x58/0xb0
[   71.850342]  process_one_work+0x1fc/0x390
[   71.854475]  worker_thread+0x48/0x4d0
[   71.858252]  kthread+0x120/0x128
[   71.861581]  ret_from_fork+0x10/0x1c
[   71.865273] Code: 52800000 d65f03c0 f9562c00 8b214000 (b9400000)
[   71.871560] ---[ end trace 1d4e29987011411b ]---
[   71.876320] Kernel panic - not syncing: Fatal exception in interrupt
[   71.882875] SMP: stopping secondary CPUs
[   71.886923] Kernel Offset: disabled
[   71.890519] CPU features: 0x0002,00002008
[   71.894649] Memory Limit: none
[   71.897799] Rebooting in 3 seconds..

Patch is awaiting upstream merge:
https://lore.kernel.org/linux-pci/[email protected]/T/#u

There was also discussion about it in the linux-pci mailing list, where can
be found response from Marvell's employee regarding A3720 PCIe erratum 3.12, which seems to provide further details which help this issue:
https://lore.kernel.org/linux-pci/BN9PR18MB425154FE5019DCAF2028A1D5DB8D9@BN9PR18MB4251.namprd18.prod.outlook.com/t/#u

Reported-by: Ondřej Caletka <[email protected]> [Turris MOX]
Signed-off-by: Josef Schlehofer <[email protected]>
Reviewed-by: Robert Marko <[email protected]>

This showed up in the log:
|Hunk #1 succeeded at 555 (offset -83 lines).

Signed-off-by: Christian Lamparter <[email protected]>

Removed upstreamed:
  pending-5.15/101-Use-stddefs.h-instead-of-compiler.h.patch[1]
  ipq806x/patches-5.15/122-01-clk-qcom-clk-krait-fix-wrong-div2-functions.patch[2]
  bcm27xx/patches-5.15/950-0198-drm-fourcc-Add-packed-10bit-YUV-4-2-0-format.patch[3]

Manually rebased:
  ramips/patches-5.15/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch[4]

Added patch/backported:
  ramips/patches-5.15/107-PCI-mt7621-Add-sentinel-to-quirks-table.patch[5]

All other patches automatically rebased.

1. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.86&id=c160505c9b574b346031fdf2c649d19e7939ca11
2. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.86&id=a051e10bfc6906d29dae7a31f0773f2702edfe1b
3. https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.86&id=ec1727f89ecd6f2252c0c75e200058819f7ce47a
4. Quilt gave this output when I applied the patch to rebase it:
% quilt push -f
Applying patch platform/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch
patching file arch/mips/ralink/Kconfig
patching file drivers/pci/controller/Kconfig
patching file drivers/pci/controller/Makefile
patching file drivers/staging/Kconfig
patching file drivers/staging/Makefile
patching file drivers/staging/mt7621-pci/Kconfig
patching file drivers/staging/mt7621-pci/Makefile
patching file drivers/staging/mt7621-pci/TODO
patching file drivers/staging/mt7621-pci/mediatek,mt7621-pci.txt
patching file drivers/staging/mt7621-pci/pci-mt7621.c
Hunk #1 FAILED at 1.
Not deleting file drivers/staging/mt7621-pci/pci-mt7621.c as content differs from patch
1 out of 1 hunk FAILED -- saving rejects to file drivers/staging/mt7621-pci/pci-mt7621.c.rej
patching file drivers/pci/controller/pcie-mt7621.c
Applied patch platform/100-PCI-mt7621-Add-MediaTek-MT7621-PCIe-host-controller-.patch (forced; needs refresh)

Upon inspecting drivers/staging/mt7621-pci/pci-mt7621.c.rej, it seems that
the original patch wants to delete drivers/staging/mt7621-pci/pci-mt7621.c
but upstream's version was not an exact match.  I opted to delete that
file.

5. Suggestion by hauke: torvalds/linux@1909893
"This patch is in upstream kernel, but it was backported to the old
staging driver in kernel 5.15."

Build system: x86_64
Build-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod
Run-tested: bcm2711/RPi4B, filogic/xiaomi_redmi-router-ax6000-ubootmod

Signed-off-by: John Audia <[email protected]>

mt7622/whitebox-v9plus: add factory ip 10.98.11.62/24

Iomega Storcenter ix4-200d is a four-bay SATA NAS powered by a Marvell
Kirkwood SoC clocked at 1.2GHz. It has 512MB of RAM and 32MB of
flash memory, 3x USB 2.0 and 2x 1Gbit/s NIC

Specification:
- SoC: Marvell Kirkwood 88F6281
- CPU/Speed: 1200Mhz
- Flash size: 32 MiB
- RAM: 512MB
- LAN: 2x 1Gbit/s
- 3x USB 2.0

Notes:
- The blue drive LED is triggered by HDD activity, it can not be controlled
  via GPIO.
- The LCD screen requires proprietary code and does not function at this time.
- Due to a kernel-related issue with the Marvell 88SE6121 SATA controller,
  currently only trays numbered #3 and #4 work, #1 and #2 do not. [1]

Serial pinout:

    CN4
    --------------
    | 10 8 6 4 2 |
    |  9 7 5 3 1 |
    -------------- PIN 1 Mark (fat line)

     1 = RXD
     4 = TXD
     6 = GND
     9 = 3.3V (not necessary to connect)

Installation instructions:
1. download initramfs-uImage and copy into tftp server
2. connect the tftp server to network port #1
3. access uboot environment with serial cable and run

    setenv mainlineLinux yes
    setenv arcNumber 1682
    setenv console 'console=ttyS0,115200n8'
    setenv mtdparts 'mtdparts=orion_nand:0x100000@0x000000(u-boot)ro,0x20000@0xA0000(u-boot environment)ro,0x300000@0x100000(kernel),0x1C00000@0x400000(ubi)'
    setenv bootargs_root 'root='
    setenv bootcmd 'setenv bootargs ${console} ${mtdparts} ${bootargs_root}; nand read.e 0x800000 0x100000 0x300000; bootm 0x00800000'
    saveenv
    setenv serverip 192.168.1.1
    setenv ipaddr 192.168.1.2
    tftpboot 0x00800000 [initramfs-uImage filename]
    bootm 0x00800000

4. connect to LAN on network port #2, log into openwrt and sysupgrade to install into flash

[1] https://bugzilla.kernel.org/show_bug.cgi?id=216094

Signed-off-by: Sander van Deijck <[email protected]>
(aligned FROM from signed-off. LED+key rename, whitespace removal)
Signed-off-by: Christian Lamparter <[email protected]>

Hardware specification:
  SoC: MediaTek MT7981B 2x A53
  Flash: 16MB NOR
  RAM: 256MB
  Ethernet: 2x 10/100/1000 Mbps
  Switch: MediaTek MT7531AE
  WiFi: MediaTek MT7976C
  Button: Reset
  Power: DC 12V 1A, PoE 802.3af 48V

Flash instructions:

Option #1 - SSH

  I was able to SSH into the stock firmware of my device.

  1. Attach the router to the network
  2. Use scp (-O) to copy the sysupgrade image
  3. Connect using SSH and run `sysupgrade -n`

Option #2 - U-Boot

  One way to use the bootloader for flashing is using TFTP:

  1. Connect to the router using an ethernet cable
  2  Spin up a TFTP server serving the sysupgrade file
  3. Open the case and attach a UART
  4. Attach power to the router and interrupt the countdown by pressing
     any key
  5. Select option #2 (Upgrade firmware)
  6. Enter IP address information and image name
  7. Wait patiently

Co-Authored-By: Enrique Rodríguez Valencia <[email protected]>
Co-Authored-By: Hauke Mehrtens <[email protected]>
Signed-off-by: Leon M. Busch-George <[email protected]>

Currently, the existing uncompressed kallsym support is causing qualcommax
boards to hang on boot, and only after earlycon and verbose BUG() prints
are enabled the trace is visible:
[    0.000000] ------------[ cut here ]------------
[    0.000000] kernel BUG at kernel/kallsyms.c:340!
[    0.000000] Internal error: Oops - BUG: 00000000f2000800 [#1] SMP

Felix has fixed up the uncompressed kallsyms support so modify the current
patch with the fix.
All credits for the code go to Felix.

Signed-off-by: Robert Marko <[email protected]>

Don't add KERNEL_TESTING_PATCHVER yet as there are some issues with it.

On TP-Link Archer C2300 serial console seems to stop working after
preinit:
> Press the [f] key and hit [enter] to enter failsafe mode
> Press the [1], [2], [3] or [4] key and hit [enter] to select the de�

On Netgear R8000P XHCI causes external abort:
[    2.139586] Internal error: synchronous external abort: 0000000096000210 [#1] SMP
[    2.147212] Modules linked in: xhci_plat_hcd(+) xhci_hcd ohci_platform ohci_hcd fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug(O) usbcore nls_base usb_common crc32c_generic
[    2.164774] CPU: 0 PID: 358 Comm: kmodloader Tainted: G           O       6.6.22 #0
[    2.172658] Hardware name: Netgear R8000P (DT)
[    2.177229] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    2.184395] pc : xhci_gen_setup+0x80/0x34c [xhci_hcd]
[    2.189591] lr : xhci_gen_setup+0x74/0x34c [xhci_hcd]
[    2.194788] sp : ffffffc0815d37b0
[    2.198194] x29: ffffffc0815d37b0 x28: ffffff8002000000 x27: ffffff8001172d88
[    2.205540] x26: ffffff8002000000 x25: 0000000000000000 x24: ffffffc078b603c0
[    2.212888] x23: ffffffc078b2a008 x22: ffffff8001172c10 x21: ffffff8002000000
[    2.220235] x20: ffffff8002000000 x19: ffffff8002000250 x18: 0000000000000000
[    2.227582] x17: 626d756e20737562 x16: 2064656e67697373 x15: ffffffffffffffff
[    2.234929] x14: ffffff80019e9915 x13: ffffff80019e9913 x12: 00000000ffffffea
[    2.242276] x11: 00000000ffffefff x10: 0000000000000062 x9 : 00000000ffffffd0
[    2.246760] bcm63138_nand ff801800.nand-controller: timeout waiting for command 0x4
[    2.249623] x8 : 0000000000000073 x7 : ffffffc0815d37c0 x6 : 0000000000000075
[    2.257513] bcm63138_nand ff801800.nand-controller: intfc status c00000e0
[    2.264855] x5 : 0000000000000081 x4 : 0000000000000000 x3 : ffffff8001b61800
[    2.279193] x2 : ffffffc080b5d000 x1 : ffffff80020003a8 x0 : ffffff8002000398
[    2.286540] Call trace:
[    2.289048]  xhci_gen_setup+0x80/0x34c [xhci_hcd]

Signed-off-by: Rafał Miłecki <[email protected]>

If this function is marked as __init, kernel will splat when driver is
(re)bind
echo "c080000.ethernet">/sys/bus/platform/drivers/ipqess-edma/unbind
echo "c080000.ethernet">/sys/bus/platform/drivers/ipqess-edma/bind

Example with additional print messages, functions at boot:
[    2.039468] ipqess-edma c080000.ethernet: ipqess_axi_probe pre register_netdev
[    2.039530] ipqess-edma c080000.ethernet: *netdev: c27d2000
[    2.045609] ipqess-edma c080000.ethernet: &ipqess_init: c0d1e28c
[    2.051122] ipqess_init
[    2.057338] netdev: c27d2000
[    2.059492] ess = netdev_priv: c27d2500
[    2.062615] ess->pdev: c2138c00
[    2.066174] ess->pdev->dev: c2138c10
[    2.069314] ess->pdev->dev.of_node: ef6f6368
[    2.073120] ess->pdev->dev.of_node: /soc/ethernet@c080000

fails (bind) after unbind:
[   34.987948] ipqess-edma c080000.ethernet: ipqess_axi_probe pre register_netdev
[   34.988012] ipqess-edma c080000.ethernet: *netdev: c27d6000
[   34.994088] ipqess-edma c080000.ethernet: &ipqess_init: c0d1e28c
[   34.999652] 8<--- cut here ---
[   35.005802] Unable to handle kernel paging request at virtual address c0d1e28c when execute
[   35.008676] [c0d1e28c] *pgd=80c1941e(bad)
[   35.016918] Internal error: Oops: 8000000d [#1] SMP ARM

Signed-off-by: John Thomson <[email protected]>
Link: openwrt/openwrt#15831
Signed-off-by: Robert Marko <[email protected]>

Hardware specification:
  SoC: MediaTek MT7981B 2x A53
  Flash: 16MB NOR
  RAM: 256MB
  Ethernet: 2x 10/100/1000 Mbps
  Switch: MediaTek MT7531AE
  WiFi: MediaTek MT7976C
  Button: Reset
  Power: DC 12V 1A, PoE 802.3af 48V

Flash instructions:

Option #1 - SSH

  I was able to SSH into the stock firmware of my device.

  1. Attach the router to the network
  2. Use scp (-O) to copy the sysupgrade image
  3. Connect using SSH and run `sysupgrade -n`

Option #2 - U-Boot

  One way to use the bootloader for flashing is using TFTP:

  1. Connect to the router using an ethernet cable
  2  Spin up a TFTP server serving the sysupgrade file
  3. Open the case and attach a UART
  4. Attach power to the router and interrupt the countdown by pressing
     any key
  5. Select option #2 (Upgrade firmware)
  6. Enter IP address information and image name
  7. Wait patiently

Co-Authored-By: Enrique Rodríguez Valencia <[email protected]>
Co-Authored-By: Hauke Mehrtens <[email protected]>
Signed-off-by: Leon M. Busch-George <[email protected]>
(cherry picked from commit b4086f4)