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| author | Simon Buhrow <simon.buhrow@sieb-meyer.de> | 2021-04-09 14:48:39 +0200 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2021-06-25 12:47:47 +0000 |
| commit | 4d5a3b5eb03ad73d7eab16cf158513c1ed013c14 (patch) | |
| tree | 25e53c4c2baee8b61703628a748fc20c49c45bc5 /w39.c | |
| parent | d3e778f8ab1694d9c93c2c290fdcd8929c7151f9 (diff) | |
| download | flashrom-4d5a3b5eb03ad73d7eab16cf158513c1ed013c14.tar.gz flashrom-4d5a3b5eb03ad73d7eab16cf158513c1ed013c14.tar.bz2 flashrom-4d5a3b5eb03ad73d7eab16cf158513c1ed013c14.zip | |
ft2232_spi.c: Implement spi_send_multicommand()
Every ftdi_write_data() call is quite time consuming as the ftdi-chips
seems to take always 2-3ms to respond. This leads to what the comment
already says: Minimize USB transfers by packing as many commands as
possible together. So I packed the WREN command together with the
following operation which can be program or erase operation.
This saves about 1 minute when programming a 128MBit Flash within a
virtualized setup.
Signed-off-by: Simon Buhrow <simon.buhrow@posteo.de>
Change-Id: Ie4a07499ec5ef0af23818593f45dc427285a9e8a
Reviewed-on: https://review.coreboot.org/c/flashrom/+/40477
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Diffstat (limited to 'w39.c')
0 files changed, 0 insertions, 0 deletions