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From: Steve deRosier <>
To:, Dan Williams <>
Subject: libertas sdio broken on XO-1.5s
Date: Tue, 27 Apr 2010 12:35:48 -0700	[thread overview]
Message-ID: <> (raw)


A change made by you on April 15th breaks firmware downloading to an
sdio connected 8686 on the OLPC's XO-1.5s.  I reverted it and was able
to get firmware to load just fine, with it in, the firmware fails to

commit 96021f096e5178582af296a2fbb6df7dbd6b695c
Author: Dan Williams <>
Date:   Thu Apr 15 13:27:44 2010 -0700

    libertas: consolidate SDIO firmware wait code

    Consolidate a bunch of C&P code that waits for the firmware to be ready.

    Signed-off-by: Dan Williams <>
    Signed-off-by: John W. Linville <>

[   15.391242] libertas_sdio: Libertas SDIO driver
[   15.391255] libertas_sdio: Copyright Pierre Ossman
[   15.539475] libertas_sdio mmc0:0001:1: firmware: requesting sd8686_helper.bin
[   17.540214] libertas: failed to load helper firmware
[   17.541054] libertas_sdio: probe of mmc0:0001:1 failed with error -110

dmesg with it reverted:
[   15.141728] libertas_sdio: Libertas SDIO driver
[   15.141741] libertas_sdio: Copyright Pierre Ossman
[   15.275322] libertas_sdio mmc0:0001:1: firmware: requesting sd8686_helper.bin
[   16.430223] libertas_sdio mmc0:0001:1: firmware: requesting sd8686.bin
[   17.172443] libertas: 00:50:43:28:26:40, fw 9.70.7p0, cap 0x00000303
[   17.179552] libertas: wlan0: Marvell WLAN 802.11 adapter

I don't know if there's something unique with this device where
libertas_sdio works everywhere else and not with the XO-1.5, but I
suspect we'll encounter this issue with other libertas devices.

I apologize for not sending a patch, but I don't have time right now
to get to it.  Perhaps you can get to it quicker, if so, I'll be happy
to test anything you come up with.

- Steve

             reply	other threads:[~2010-04-27 19:35 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-04-27 19:35 Steve deRosier [this message]
2010-04-28  0:14 ` Dan Williams
2010-04-28 19:37   ` [PATCH] libertas: fix 8686 firmware loading regression in 96021f096e5178582af296a2fbb6df7dbd6b695c Dan Williams
2010-04-28 23:33     ` Steve deRosier

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