sdio 8686 firmware load problem.

[Jonathan Cameron]

Jonathan Cameron wrote:
>> Jonathan Cameron wrote:
>>> V8 and V9 firmware's from git repository are both giving the following debug.
>>>
>>> libertas enter: lbs_init_module()
>>> libertas leave: lbs_init_module()
>>> libertas enter: if_sdio_init_module()
>>> libertas_sdio: Libertas SDIO driver
>>> libertas_sdio: Copyright Pierre Ossman
>>> libertas enter: if_sdio_probe()
>>> libertas sdio: class = 0x7, vendor = 0x2DF, device = 0x9103, model = 0xB, ioport = 0x10000
>>> libertas enter: if_sdio_prog_firmware()
>>> libertas sdio: firmware status = 0x0
>>> into sdio firmware load
>>> libertas enter: if_sdio_prog_helper()
>>> libertas_sdio mmc0:0001:1: firmware: requesting sd8686_helper.bin
>>> libertas sdio: waiting for helper to boot...
>>> libertas leave: if_sdio_prog_helper(), ret 0
>>> libertas enter: if_sdio_prog_real()
>>> libertas_sdio mmc0:0001:1: firmware: requesting sd8686.bin
>>> libertas sdio: firmware wants 16 bytes
>>> libertas sdio: firmware wants 17 bytes
>>> libertas sdio: firmware helper signalled error
>>> libertas: failed to load firmware
>>> libertas leave: if_sdio_prog_real(), ret -5
>>> libertas leave: if_sdio_prog_firmware(), ret -5
>>> libertas leave: if_sdio_probe(), ret -5
>>> libertas_sdio: probe of mmc0:0001:1 failed with error -5
>>> libertas leave: if_sdio_init_module(), ret 0
>>>
>>> This was previously working with this board and the same kernel setup
>>> prior to switching from a scratch built filesystem etc to using openembedded.
>>>
>>> Anyone have any suggestions on what might be happening?
>>>
>>> Thanks,
>>>
>>> Jonathan
>> Forgot to mention this is with 2.6.31-rc5
> Ok, bit more info.
> 
> Uncommenting out the line in the helper firmware load that makes it log
> how much data is being sent makes everything work.
> 
> Looks like something racy is going on. Will poke further.
> 
> For more info, this on a pxa271 board. The only non libertas change
> recently that might effect it was a fix to the pxamci dma code, will try
> reverting that.
Revert the pxamci fix doesn't help.

Have reduced things to a single msleep(1) before

		ret = sdio_writesb(card->func, card->ioport,
				chunk_buffer, 64);

in: static int if_sdio_prog_helper(struct if_sdio_card *card)

+ sticking a large sleep at the end of the firmware load doesn't seem to help.

Has anyone seen anything similar?