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From: Larry Finger <Larry.Finger@lwfinger•net>
To: Linus Torvalds <torvalds@linux-foundation•org>
Cc: "Arend van Spriel" <arend@broadcom•com>,
	"John W. Linville" <linville@tuxdriver•com>,
	"Network Development" <netdev@vger•kernel.org>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom•com>,
	"Rafał Miłecki" <zajec5@gmail•com>
Subject: Re: brcm80211 breakage..
Date: Wed, 11 Jan 2012 22:15:19 -0600	[thread overview]
Message-ID: <4F0E5E57.9060204@lwfinger.net> (raw)
In-Reply-To: <CA+55aFyR9C8GjhKb8orr1kgd_G23=-mcmT-uz9zJd6wk7rYDPA@mail.gmail.com>

On 01/11/2012 08:11 PM, Linus Torvalds wrote:
> On Wed, Jan 11, 2012 at 5:46 PM, Larry Finger<Larry.Finger@lwfinger•net>  wrote:
>>
>> OK. The SPROM issue is not completely irrelevant as that has to be correct,
>> but obviously not sufficient.
>
> Hmm. Having dug a bit deeper, I do think it's kind of related.
>
> I get -ENODATA form sprom_read_pci(), but that function actually seems
> to get the offset *right*.
>
> Some printout shows that for that chip, I have
>
>   - ai_get_ccrev(sih) = 34
>   - sprom_offset = 0x800
>
> but then it apparently reads all ones anyway. At least in the first
> word. So then I get that -ENODATA error.
>
> So once more, it's somehow related to the sprom, just in a new place:
> sprom_read_pci() in brcmsmac/srom.c instead of drivers/bcma/sprom.c.
>
> Does that give people any new ideas to try out?

Things are getting curious. I have a 14e4:4353 device, which works with both b43 
and brcmsmac using mainline v3.2-6271-g925b5d2. The output of

dmesg | egrep "bcma|brcm"

with some extra debugging added yields:

bcma-pci-bridge 0000:06:00.0: PCI INT A -> Link[LK1E] -> GSI 22 (level, low) -> 
IRQ 22
bcma-pci-bridge 0000:06:00.0: setting latency timer to 64
bcma: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x22, class 0x0)
bcma: Core 1 found: IEEE 802.11 (manuf 0x4BF, id 0x812, rev 0x17, class 0x0)
bcma: Core 2 found: PCIe (manuf 0x4BF, id 0x820, rev 0x0F, class 0x0)
bcma: Found rev 6 PMU (capabilities 0x108C2606)
bcma: SPROM offset 0x830
bcma: Found SPROM Revision 8
bcma: Bus registered
brcmsmac bcma0:0: mfg 4bf core 812 rev 23 class 0 irq 22
brcmsmac: Found chip type AI (0x1381a8d8)
brcmsmac: Applying 43224B0+ WARs
bcma: Switched to core: 0x812
brcms_module_init: register returned 0

I see no difference in the core revisions, etc. to explain why mine should work, 
and yours fail.

Arend: Any particular place we should look?

Larry

  reply	other threads:[~2012-01-12  4:15 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-01-10 20:15 brcm80211 breakage Linus Torvalds
2012-01-11 10:44 ` Arend van Spriel
2012-01-11 15:05   ` Linus Torvalds
2012-01-11 16:04     ` Linus Torvalds
2012-01-11 17:00       ` Larry Finger
2012-01-12  1:06         ` Linus Torvalds
2012-01-12  1:46           ` Larry Finger
2012-01-12  1:58             ` Linus Torvalds
2012-01-12  2:11             ` Linus Torvalds
2012-01-12  4:15               ` Larry Finger [this message]
2012-01-12  5:20                 ` Linus Torvalds
2012-01-12  5:30                   ` Linus Torvalds
2012-01-12  7:08                     ` Rafał Miłecki
2012-01-12  7:10                       ` Rafał Miłecki
2012-01-12  7:18                       ` Linus Torvalds
2012-01-12 15:39                       ` Larry Finger
2012-01-12 15:46                         ` Rafał Miłecki
2012-01-12  7:13                     ` Linus Torvalds
2012-01-12  7:18                       ` Rafał Miłecki
2012-01-12  7:22                         ` Linus Torvalds
2012-01-12 10:03                       ` Arend van Spriel
2012-01-12 15:51                         ` Linus Torvalds
2012-01-12 19:00                       ` Linus Torvalds
2012-01-12 19:08                         ` Linus Torvalds
2012-01-12 20:09                           ` Arend van Spriel
2012-01-12 20:27                             ` Linus Torvalds
2012-01-12 20:36                               ` Arend van Spriel
2012-01-12 22:38                               ` Linus Torvalds
2012-01-12 22:42                                 ` Rafał Miłecki
2012-01-12 22:45                                   ` Linus Torvalds
2012-01-12 23:04                                     ` Rafał Miłecki
2012-01-13  0:13                                       ` Linus Torvalds
2012-01-13  2:30                                         ` Linus Torvalds
2012-01-13  5:34                                           ` Linus Torvalds
2012-01-13  6:50                                             ` Rafał Miłecki
2012-01-13  6:57                                               ` Rafał Miłecki
2012-01-13  7:17                                                 ` Linus Torvalds
2012-01-13  7:41                                                   ` [PATCH] bcma: s&r: NULL mapped core Rafał Miłecki
2012-01-13  7:53                                                     ` Linus Torvalds
2012-01-13  7:59                                                     ` [0/5] bcma/brcmsmac suspend/resume cleanups and fixes Linus Torvalds
2012-01-13  8:00                                                       ` [PATCH 1/5] bcma: convert suspend/resume to pm_ops Linus Torvalds
2012-01-13  9:58                                                         ` Arend van Spriel
2012-01-13 10:01                                                           ` Rafał Miłecki
2012-01-13  8:00                                                       ` [PATCH 2/5] bcma: add stub for bcma_bus suspend() Linus Torvalds
2012-01-13  8:01                                                       ` [PATCH 3/5] bcma: connect the bcma bus suspend/resume to the bcma driver suspend/resume Linus Torvalds
2012-01-13  8:01                                                       ` [PATCH 4/5] brcmsmac: remove PCI suspend/resume from bcma driver Linus Torvalds
2012-01-13  9:59                                                         ` Arend van Spriel
2012-01-13  8:02                                                       ` [PATCH 5/5] bcma: invalidate the mapped window over suspend/resume Linus Torvalds
2012-01-13 10:03                                                       ` [0/5] bcma/brcmsmac suspend/resume cleanups and fixes Rafał Miłecki
2012-01-13 16:15                                                         ` Linus Torvalds
2012-01-13 11:06                                                       ` Arend van Spriel
2012-01-13 16:23                                                         ` Linus Torvalds
2012-01-14  3:50                                                         ` Linus Torvalds
2012-01-14 12:22                                                           ` Dominique Martinet
2012-01-14 14:34                                                             ` Rafał Miłecki
2012-01-14 15:07                                                               ` Dominique Martinet
2012-01-14 19:15                                                             ` Linus Torvalds
2012-01-14 23:08                                                               ` Dominique Martinet
2012-01-14 23:28                                                                 ` Linus Torvalds
2012-01-14 17:36                                                           ` Arend van Spriel
2012-01-16 14:00                                                           ` Arend van Spriel
2012-01-16 17:33                                                             ` Arend van Spriel
2012-01-17  1:12                                                               ` Linus Torvalds
2012-01-17 10:37                                                                 ` Arend van Spriel
2012-01-19  9:42                                                                 ` Arend van Spriel
2012-01-19 12:12                                                                 ` Arend van Spriel
2012-01-19 16:15                                                                   ` Linus Torvalds
2012-01-13  7:13                                               ` brcm80211 breakage Linus Torvalds
2012-01-12 19:46                         ` Arend van Spriel
2012-01-13  1:53                         ` Larry Finger
2012-01-31 12:08                         ` Henrik Rydberg
2012-01-31 17:02                           ` Linus Torvalds
2012-01-31 19:08                             ` Arend van Spriel
2012-01-31 19:25                               ` John W. Linville
2012-01-31 19:35                                 ` Arend van Spriel
2012-01-31 19:58                                 ` Henrik Rydberg
2012-01-31 20:21                                   ` Arend van Spriel
2012-01-31 22:23                                     ` Henrik Rydberg
2012-01-31 19:36                               ` Henrik Rydberg
2012-01-31 19:49                                 ` Arend van Spriel
2012-01-12 13:13                 ` Arend van Spriel
2012-01-12 16:22                   ` Larry Finger
2012-01-12 17:18                   ` Larry Finger
2012-01-12 17:31                     ` Linus Torvalds
2012-01-12 17:44                       ` Larry Finger
2012-01-11 21:01       ` Arend van Spriel
2012-01-12  0:07         ` Linus Torvalds
2012-01-11 17:15   ` Ben Hutchings
2012-01-12  0:10     ` Linus Torvalds

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