tree 4def083a94436d9a9f1ed9108836b7792d0fbea8
parent 3dad5753e850e5dff45b60ce6ce516f052cab054
author Paweł Anikiel <pan@semihalf.com> 1655462844 +0200
committer Tien Fong Chee <tien.fong.chee@intel.com> 1656658634 +0800

socfpga: arria10: Improve bitstream loading speed

Apply some optimizations to speed up bitstream loading
(both for full and split periph/core bitstreams):

 * Change the size of the first fs read, so that all the subsequent
   reads are aligned to a specific value (called MAX_FIRST_LOAD_SIZE).
   This value was chosen so that in subsequent reads the fat fs driver
   doesn't have to allocate a temporary buffer in get_contents
   (assuming 8KiB clusters).

 * Change the buffer size to a larger value when reading to ddr
   (but not too large, because large transfers cause a stack overflow
   in the dwmmc driver).

Signed-off-by: Paweł Anikiel <pan@semihalf.com>
Reviewed-by: Simon Glass <sjg@chromium.org>