diff options
| author |   Harro Haan <hrhaan@gmail.com> | 2012-10-31 23:24:26 +0100 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2012-11-14 14:55:34 -0500 |
| commit | 73e6991ad3e5d528b7947b20708a5d67d833e27c (patch) | |
| tree | 15e0933171e032db7b52be01a42d9051f84cd33e /drivers/net/wireless/libertas/if_sdio.c | |
| parent | carl9170: kill MODULE_VERSION (diff) | |
| download | linux-dev-73e6991ad3e5d528b7947b20708a5d67d833e27c.tar.xz linux-dev-73e6991ad3e5d528b7947b20708a5d67d833e27c.zip | |
add Marvell 88W8688 support to libertas_sdio
This chip is for example used in the GuruPlug.
This patch avoids the following error:
libertas_sdio: failed to load firmware
libertas_sdio: probe of mmc0:0001:1 failed with error -5
The fix is based on code in:
drivers/net/wireless/libertas_uap/uap_sdio_mmc.c
This file can for example be found on the following links:
http://www.xilka.com/sheeva/2.6/2.6.36/2.6.36.2/source/0002-Driver-for-Marvell-Libertas-8688-SDIO-micro-AP-suppo-2.6.35.patch
http://www.downloadsnewit.co.uk/kernel-v3.0.7/
I followed the following wiki to setup a working WiFi client mode
connection on the GuruPlug:
http://wiki.debian.org/libertas
Signed-off-by: Harro Haan <hrhaan@gmail.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas/if_sdio.c')
| -rw-r--r-- | drivers/net/wireless/libertas/if_sdio.c | 39 |
1 files changed, 30 insertions, 9 deletions
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c index 4cb234349fbf..739309e70d8b 100644 --- a/drivers/net/wireless/libertas/if_sdio.c +++ b/drivers/net/wireless/libertas/if_sdio.c @@ -588,17 +588,38 @@ static int if_sdio_prog_real(struct if_sdio_card *card, size = fw->size; while (size) { - ret = if_sdio_wait_status(card, FW_DL_READY_STATUS); - if (ret) - goto release; + timeout = jiffies + HZ; + while (1) { + ret = if_sdio_wait_status(card, FW_DL_READY_STATUS); + if (ret) + goto release; - req_size = sdio_readb(card->func, IF_SDIO_RD_BASE, &ret); - if (ret) - goto release; + req_size = sdio_readb(card->func, IF_SDIO_RD_BASE, + &ret); + if (ret) + goto release; + + req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1, + &ret) << 8; + if (ret) + goto release; + + /* + * For SD8688 wait until the length is not 0, 1 or 2 + * before downloading the first FW block, + * since BOOT code writes the register to indicate the + * helper/FW download winner, + * the value could be 1 or 2 (Func1 or Func2). + */ + if ((size != fw->size) || (req_size > 2)) + break; + if (time_after(jiffies, timeout)) { + ret = -ETIMEDOUT; + goto release; + } + mdelay(1); + } - req_size |= sdio_readb(card->func, IF_SDIO_RD_BASE + 1, &ret) << 8; - if (ret) - goto release; /* lbs_deb_sdio("firmware wants %d bytes\n", (int)req_size); */ |