Dear Kyle Moffett,
In message 1324487292-7299-4-git-send-email-Kyle.D.Moffett@boeing.com you wrote:
When performing large bulk reads from a CD or DVD using the U-Boot usb_storage driver, it generates requests of up to 20 blocks at a time.
With a standard 512-byte block size, that is 10240 bytes and within the limit of U-Boot's EHCI driver (maximum 5 pages at 4k per page).
Unfortunately CD-ROM media has a 2048-byte blocksize, resulting in a maximum transfer size of 40960 bytes, which does not fit.
Since the EHCI specification is impossibly obtuse and far beyond my comprehension, I chose to dynamically compute the limit based on the blocksize.
Signed-off-by: Kyle Moffett Kyle.D.Moffett@boeing.com
--
v2: Minor whitespace fixes
common/usb_storage.c | 45 +++++++++++++++++++++++++-------------------- 1 files changed, 25 insertions(+), 20 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk