Change in flashrom[master]: ft2232_spi.c: Implement spi_send_multicommand()

[Simon Buhrow (Code Review)]

Attention is currently required from: Simon Buhrow, Alan Green, Edward O'Callaghan, Samir Ibradžić.
Hello build bot (Jenkins), Alan Green, Edward O'Callaghan, Angel Pons, Anastasia Klimchuk, Samir Ibradžić,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/40477

to look at the new patch set (#29).

Change subject: ft2232_spi.c: Implement spi_send_multicommand()
......................................................................

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 with my
config!

Signed-off-by: Simon Buhrow 
Change-Id: Ie4a07499ec5ef0af23818593f45dc427285a9e8a
---
M ft2232_spi.c
1 file changed, 87 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/77/40477/29