Edward O'Callaghan uploaded patch set #2 to this change.

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realtek_mst_i2c_spi.c: Fix _spi_write256() as documented

Turns out broken erasures highlighted some of the issues
in the write256 implementation. After a fair amount of
time deciphering scarce documention details a correct
implementation was finally derived.

V.2: Rename 'start_program() -> execute_write()' to
  clarify the intention and not to overload the term
  'program' since the MST actually runs a 'program'
  itself.

BUG=b:152558985,b:148745673
BRANCH=none
TEST=flashrom -p realtek_mst_i2c_spi:bus=8 -E &&
  flashrom -p realtek_mst_i2c_spi:bus=8 -w foo &&
  flashrom -p realtek_mst_i2c_spi:bus=8 -r foo &&
  hexdump -C foo

Change-Id: If61ff95697f886d3301a907b76283322c39ef5c7
Signed-off-by: Edward O'Callaghan <quasisec@google.com>
---
M realtek_mst_i2c_spi.c
1 file changed, 51 insertions(+), 22 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/80/41080/2

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