linux/drivers/net
Gabor Juhos add295a4af ath9k: use correct OTP register offsets for AR9550
Accessing the OTP memory on AR9950 causes a data bus
like this:

  Data bus error, epc == 801f7774, ra == 801f7774
  Oops[#1]:
  CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.0-rc3 #592
  task: 87c28000 ti: 87c22000 task.ti: 87c22000
  $ 0   : 00000000 00000061 deadc0de 00000000
  $ 4   : b8115f18 00015f18 00000007 00000004
  $ 8   : 00000001 7c7c3c7c 7c7c7c7c 7c7c7c7c
  $12   : 7c7c3c7c 80320a68 00000000 7c7c7c3c
  $16   : 87cd8010 00015f18 00000007 00000000
  $20   : 00000064 00000004 87c23c7c 8035210c
  $24   : 00000000 801f3674
  $28   : 87c22000 87c23b48 00000001 801f7774
  Hi    : 00000000
  Lo    : 00000064
  epc   : 801f7774 ath9k_hw_wait+0x58/0xb0
      Not tainted
  ra    : 801f7774 ath9k_hw_wait+0x58/0xb0
  Status: 1000cc03 KERNEL EXL IE
  Cause : 4080801c
  PrId  : 00019750 (MIPS 74Kc)
  Modules linked in:
  Process swapper (pid: 1, threadinfo=87c22000, task=87c28000, ts=00000000)
  Stack : 0000000f 00000061 00002710 8006240c 00000001 87cd8010 87c23bb0 87cd8010
          00000000 00000004 00000003 80210c7c 000000b3 67fa8000 0000032a 000006fe
          000003e8 00000002 00000028 87c23bf0 000003ff 80210d24 803e5630 80210e28
          00000000 00000007 87cd8010 00007044 00000004 00000061 000003ff 000001ff
          87c26000 87cd8010 00000220 87cd8bb8 80210000 8020fcf4 87c22000 87c23c08
          ...
  Call Trace:
  [<801f7774>] ath9k_hw_wait+0x58/0xb0
  [<80210c7c>] ar9300_otp_read_word+0x80/0xd4
  [<80210d24>] ar9300_read_otp+0x54/0xb0
  [<8020fcf4>] ar9300_check_eeprom_header+0x1c/0x40
  [<80210fe4>] ath9k_hw_ar9300_fill_eeprom+0x118/0x39c
  [<80206650>] ath9k_hw_eeprom_init+0x74/0xb4
  [<801f96d0>] ath9k_hw_init+0x7ec/0x96c
  [<801e65ec>] ath9k_init_device+0x340/0x758
  [<801f35d0>] ath_ahb_probe+0x21c/0x2c0
  [<801c041c>] driver_probe_device+0xc0/0x1e4
  [<801c05ac>] __driver_attach+0x6c/0xa4
  [<801bea08>] bus_for_each_dev+0x64/0xa8
  [<801bfa40>] bus_add_driver+0xcc/0x24c
  [<801c0954>] driver_register+0xbc/0x17c
  [<803f8fc0>] ath9k_init+0x5c/0x88
  [<800608fc>] do_one_initcall+0xec/0x1a0
  [<803e6a68>] kernel_init_freeable+0x13c/0x200
  [<80309cdc>] kernel_init+0x1c/0xe4
  [<80062450>] ret_from_kernel_thread+0x10/0x18

On the AR9550, the OTP registers are located at
the same address as on the AR9340. Use the correct
values to avoid the error.

Cc: stable@vger.kernel.org  # 3.6+
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
2013-05-28 13:43:10 -04:00
..
appletalk
arcnet
bonding Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
caif Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
can Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
cris
dsa
ethernet Merge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile 2013-05-09 14:34:58 -07:00
fddi
hamradio drivers/net: rename random32() to prandom_u32() 2013-05-07 18:38:27 -07:00
hippi
hyperv hyperv: Fix a compiler warning in netvsc_send() 2013-04-29 14:06:32 -04:00
ieee802154 at86rf230: change irq handling to prevent lockups with edge type irq 2013-04-16 16:34:08 -04:00
irda net/irda: fix error return code in bfin_sir_open() 2013-05-08 13:13:29 -07:00
phy Removal of GENERIC_GPIO for v3.10 2013-05-09 09:59:16 -07:00
plip net: add ETH_P_802_3_MIN 2013-03-28 01:20:42 -04:00
ppp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
slip
team drivers/net: rename random32() to prandom_u32() 2013-05-07 18:38:27 -07:00
usb sierra_net: keep status interrupt URB active 2013-05-08 13:13:29 -07:00
vmxnet3 net: vlan: add protocol argument to packet tagging functions 2013-04-19 14:46:06 -04:00
wan
wimax
wireless ath9k: use correct OTP register offsets for AR9550 2013-05-28 13:43:10 -04:00
xen-netback xen-netback: better names for thresholds 2013-05-02 16:50:08 -04:00
dummy.c
eql.c
ifb.c net: vlan: announce STAG offload capability in some drivers 2013-04-19 14:46:06 -04:00
Kconfig VXLAN: Fix vxlan stats handling. 2013-03-26 12:27:18 -04:00
LICENSE.SRC
loopback.c
macvlan.c net: vlan: announce STAG offload capability in some drivers 2013-04-19 14:46:06 -04:00
macvtap.c net: switch to use skb_probe_transport_header() 2013-03-27 12:48:31 -04:00
Makefile
mdio.c
mii.c
netconsole.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tun.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2013-04-30 03:55:20 -04:00
veth.c net: vlan: announce STAG offload capability in some drivers 2013-04-19 14:46:06 -04:00
virtio_net.c Lots of virtio work which wasn't quite ready for last merge window. Plus 2013-05-02 14:14:04 -07:00
vxlan.c vxlan: do not set SKB_GSO_UDP 2013-04-29 15:27:47 -04:00
xen-netfront.c xen-netfront: reduce gso_max_size to account for max TCP header 2013-04-22 15:37:01 -04:00