tree 9ad4fa71b14e654efae15af1ec00768a1ec37ea9
parent 530cb2d4f16c110d12852ecbb0d48860eb99bf5e
author Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1242348982 +0000
committer Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1242348982 +0000

Additionally to WREN also handle WRSR failures gracefully for ICHSPI

Until the ICH SPI driver can handle preopcodes as standalone opcodes,
we should handle such special opcode failure gracefully on ICH and
compatible chipsets.

This fixes status register writes on almost all ICH+VIA SPI masters.

The fix is almost identical to r484, but this time it affects the EWSR
(Enable Write Status Register) opcode instead of the WREN (Write Enable)
opcode.

With the differentiated return codes introduced in r500, the workaround
is more precise this time. The old WREN workaround was updated as well.

Corresponding to flashrom svn r514.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: FENG Yu Ning <fengyuning1984@gmail.com>
Acked-by: Cristi Magherusan <cristi.magherusan@net.utcluj.ro>