[flashrom-gerrit] Change in flashrom[master]: spi25: Use common code for nbyte read/write and block erase

[Nico Huber (Code Review)]

Hello David Hendricks, Paul Menzel, build bot (Jenkins),

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

https://review.coreboot.org/22383

to look at the new patch set (#2).

Change subject: spi25: Use common code for nbyte read/write and block erase
......................................................................

spi25: Use common code for nbyte read/write and block erase

Introduce spi_prepare_address() and spi_write_cmd() and use them in
nbyte_program, nbyte_read and block-erase procedures. The former
abstracts over the address part of a SPI command to make it exten-
sible for 4-byte adressing. spi_write_cmd() implements a WREN + write
operation with address and optionally up to 256 bytes of data. It
provides a common path to reduce overall redundancy.

Also, reduce the polling delay in spi_block_erase_c4() from 500s to
500ms as the comment suggests.

Change-Id: Ibc1ae48acbfbd427a30bcd64bdc080dc3dc20503
Signed-off-by: Nico Huber 
---
M chipdrivers.h
M spi.h
M spi25.c
3 files changed, 105 insertions(+), 429 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/83/22383/2