Hi Simon,
I do see only first warning on all the devices and rest of the warnings
on a few mass storage device.
My patch fixing these warnings is not accepted. Please see below link
for further info -
http://lists.denx.de/pipermail/u-boot/2012-March/119404.html
IMO, these warnings spew when we expects some info e.g. device
descriptor, manf id, prod id... from the device.
The root cause of the issue is some race condition in H/w due to which,
even though we receive "STD_ASS"(Async sequence status) as 0
still transfer descriptor token is not updated.
Thanx & Regards,
Puneet
On Monday 05 March 2012 11:48 PM, Simon Glass wrote:
Hi Puneet,
On Mon, Mar 5, 2012 at 6:46 AM, Puneet Saxena<pune...@nvidia.com> wrote:
As DMA expects the buffers to be equal and larger then
cache lines, This aligns buffers at cacheline.
Signed-off-by: Puneet Saxena<pune...@nvidia.com>
Tested on Seaboard:
Tested-by: Simon Glass<s...@chromium.org>
Acked-by: Simon Glass<s...@chromium.org>
I do still see a few alignment warnings, but only a tidy fraction of
what we had. Do you see these?
Tegra2 (SeaBoard) # usb start
(Re)start USB...
USB: Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... ERROR: v7_dcache_inval_range - start
address is not aligned - 0x3fbed6f2
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x3fbed732
ERROR: v7_dcache_inval_range - start address is not aligned - 0x3fbed484
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x3fbed584
ERROR: v7_dcache_inval_range - start address is not aligned - 0x3fbed492
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x3fbed592
ERROR: v7_dcache_inval_range - start address is not aligned - 0x3fbed49e
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x3fbed59e
ERROR: v7_dcache_inval_range - start address is not aligned - 0x3fbed4a2
ERROR: v7_dcache_inval_range - stop address is not aligned - 0x3fbed582
2 USB Device(s) found
scanning bus for storage devices... 1 Storage Device(s) found
Regards,
Simon
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