Gabor Juhos 6015a856f1 MIPS: ath79: add a workaround for a PCI controller bug in AR7240 SoCs ... The PCI controller of the AR724X SoCs has a hardware bag. If the BAR0 register of the PCI device is set to the proper base address, the memory address space of the device is not accessible. When the device driver tries to access the memory address space of the PCI device, it leads to data bus error, similiar to this: Data bus error, epc == 801f69a0, ra == 801f698c Oops[#1]: Cpu 0 $ 0 : 00000000 00000061 deadbeef 000000ff $ 4 : 00000000 000000ff 00000014 00000000 $ 8 : ff000000 fffffffc 00000000 00000000 $12 : 000001f5 00000006 00000000 6e637920 $16 : 81ca4000 81ca0260 81ca4000 804d70f0 $20 : fffffff4 0000002b 803ad4c4 00000000 $24 : 00000003 00000000 $28 : 81c20000 81c21c60 00000000 801f698c Hi : 00000000 Lo : 00000000 epc : 801f69a0 ath9k_hw_init+0xd0/0xa70 Not tainted ra : 801f698c ath9k_hw_init+0xbc/0xa70 Status: 1000c103 KERNEL EXL IE Cause : 1080001c PrId : 00019374 (MIPS 24Kc) Modules linked in: Process swapper (pid: 1, threadinfo=81c20000, task=81c18000, tls=00000000) Stack : 00000000 00000000 00000000 00000000 81c21c78 81ca0260 00000000 804d70f0 81ca0260 81c21cc0 81ca0e80 81ca0260 81ca4000 804d70f0 fffffff4 0000002b 803ad4c4 00000000 00000000 801e3ae8 81c9d080 81ca0e80 b0000000 800b9b9c 00000008 81c9d000 8031aeb0 802d38a0 00000000 81c14c00 81c14c60 00000000 81ca0e80 81ca0260 b0000000 801f08a4 81c9c820 81c21d48 81c9c820 80144320 ... Call Trace: [<801f69a0>] ath9k_hw_init+0xd0/0xa70 [<801e3ae8>] ath9k_init_device+0x174/0x680 [<801f08a4>] ath_pci_probe+0x27c/0x380 [<8019e490>] pci_device_probe+0x74/0x9c [<801bfadc>] driver_probe_device+0x9c/0x1b4 [<801bfcb0>] __driver_attach+0xbc/0xc4 [<801bea0c>] bus_for_each_dev+0x5c/0x98 [<801bf394>] bus_add_driver+0x1d0/0x2a4 [<801c0364>] driver_register+0x8c/0x16c [<8019e72c>] __pci_register_driver+0x4c/0xe4 [<803d3d40>] ath9k_init+0x3c/0x88 [<80060930>] do_one_initcall+0x3c/0x1cc [<803c297c>] kernel_init+0xa4/0x138 [<80063c04>] kernel_thread_helper+0x10/0x18 Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3494/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>		2012-05-15 17:49:03 +02:00
..
alchemy	MIPS: Alchemy: Increase minimum timeout for 32kHz timer.	2012-02-20 18:33:18 +01:00
ar7	Merge branches 'next/ar7', 'next/ath79', 'next/bcm63xx', 'next/bmips', 'next/cavium', 'next/generic', 'next/kprobes', 'next/lantiq', 'next/perf' and 'next/raza' into mips-for-linux-next	2012-01-11 15:42:31 +01:00
ath79	MIPS: ath79: replace ath724x to ar724x	2012-05-15 17:49:02 +02:00
bcm47xx	MIPS: BCM47XX: provide sprom to bcma bus	2012-03-05 15:20:51 -05:00
bcm63xx	mips: Fix typo in bcm63xx/setup.c	2012-02-05 17:14:47 +01:00
boot	MIPS: Alchemy: Basic support for the DB1300 board.	2011-12-07 22:02:06 +00:00
cavium-octeon	Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2012-04-04 17:13:43 -07:00
cobalt	MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD	2011-09-21 17:52:15 +02:00
configs	locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage	2012-03-23 13:18:57 +01:00
dec	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
emma	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
fw	Disintegrate and delete asm/system.h	2012-03-28 15:58:21 -07:00
include/asm	MIPS: ath79: replace ath724x to ar724x	2012-05-15 17:49:02 +02:00
jazz	Merge branch 'next/generic' into mips-for-linux-next	2012-01-11 15:41:47 +01:00
jz4740	ASoC: jz4740: Convert qi_lb60 to use snd_soc_register_card()	2012-01-20 13:58:29 +00:00
kernel	MIPS: Use set_current_blocked() and block_sigmask()	2012-04-27 00:12:47 +01:00
lantiq	Merge branch 'next/generic' into mips-for-linux-next	2012-01-11 15:41:47 +01:00
lasat	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
lib	mips: use the the PCI controller's io_map_base	2012-01-31 23:20:30 +02:00
loongson	MIPS: irq: Remove IRQF_DISABLED	2011-12-07 22:03:45 +00:00
math-emu	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
mipssim	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
mm	Merge branch 'for-linus' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2012-04-04 17:13:43 -07:00
mti-malta	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
netlogic	remove references to cpu_*_map in arch/	2012-03-29 15:38:30 +10:30
oprofile	MIPS: oprofile: Add callgraph support	2011-06-15 14:35:34 +02:00
pci	MIPS: ath79: add a workaround for a PCI controller bug in AR7240 SoCs	2012-05-15 17:49:03 +02:00
pmc-sierra	documentation: remove references to cpu_*_map.	2012-03-29 15:38:31 +10:30
pnx833x	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
pnx8550	MIPS: irq: Remove IRQF_DISABLED	2011-12-07 22:03:45 +00:00
power	MIPS: Hibernation: Fixes for PAGE_SIZE >= 64kb	2011-05-10 18:15:26 +01:00
powertv	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
rb532	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
sgi-ip22	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
sgi-ip27	remove references to cpu_*_map in arch/	2012-03-29 15:38:30 +10:30
sgi-ip32	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
sibyte	documentation: remove references to cpu_*_map.	2012-03-29 15:38:31 +10:30
sni	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
txx9	MIPS: txx9 7segled fix struct device has no member	2012-02-20 18:33:18 +01:00
vr41xx	Disintegrate asm/system.h for MIPS	2012-03-28 18:30:02 +01:00
wrppmc	MIPS: WRPPMC: Migrate to new platform makefile style.	2010-08-05 13:25:51 +01:00
Kbuild	MIPS: Repair Kbuild make clean breakage.	2010-10-19 18:32:39 +01:00
Kbuild.platforms	MIPS: XLR, XLS: Move makefile bits to were they belong.	2011-07-20 23:12:11 +01:00
Kconfig	Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile	2012-03-29 14:49:45 -07:00
Kconfig.debug	lib: consolidate DEBUG_STACK_USAGE option	2011-05-25 08:39:54 -07:00
Makefile	MIPS: BMIPS: Add CFLAGS, Makefile entries for BMIPS	2011-12-07 22:03:17 +00:00