tree 507387aa6b99ba2538d054a6662233927750ba19
parent b4dcb7188ff557c6722f862a61e806f901c17889
author Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1242214808 +0000
committer Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net> 1242214808 +0000

There are various reasons why a SPI command can fail

Among others, I have seen the following problems: - The SPI opcode is
not supported by the controller. ICH-style controllers exhibit this if
SPI config is locked down. - The address in in a prohibited area. This
can happen on ICH for any access (BBAR) and for writes in chipset write
protected areas. - There is no SPI controller.

Introduce separate error codes for unsupported opcode and prohibited
address.

Add the ability to adjust REMS and RES addresses to the minium supported
read address with the help of spi_get_valid_read_addr(). That function
needs to call SPI controller specific functions like reading BBAR on
ICH.

Corresponding to flashrom svn r500.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>