Handle (un)locking of SST FWH chips

Add lock bit handling (printing, setting and checking) to SST FWH chips
and abort any writes to locked sectors. Verbose mode gives you all the
info. Normal mode only tells you of unlocking failed, but gives enough
details to debug.

Add a comment about flash register placement to flashrom.c.

Thanks to Uwe for testing multiple iterations of this patch.

Corresponding to flashrom svn r492.

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

1 files changed, 1 insertions, 0 deletions

diff --git a/flashrom.c b/flashrom.c
index d7f4479..981d835 100644
--- a/flashrom.c
+++ b/flashrom.c
@@ -65,6 +65,7 @@ const struct programmer_entry programmer_table[] = {
 void map_flash_registers(struct flashchip *flash)
 {
 	size_t size = flash->total_size * 1024;
+	/* Flash registers live 4 MByte below the flash. */
 	flash->virtual_registers = physmap("flash chip registers", (0xFFFFFFFF - 0x400000 - size + 1), size);
 }