[PATCH] Fix non-FWH chips with FWH-like commands

[Michael Karcher]

Flash registers are not mapped on these chips, but the unprotection
code in erase_82802ab_block tried to access them.

Signed-off-by: Michael Karcher 
---
 82802ab.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/82802ab.c b/82802ab.c
index e63dc10..e0c0ba5 100644
--- a/82802ab.c
+++ b/82802ab.c
@@ -101,7 +101,10 @@ int erase_82802ab_block(struct flashchip *flash, unsigned int page, unsigned int
    chip_writeb(0x50, bios + page);

// clear write protect
-	chip_writeb(0, wrprotect);
+	// FIXME: remove second part when FWH uses feature bits 
+	if (flash->feature_bits & FEATURE_REGISTERMAP || 
+	    flash->bustype == CHIP_BUSTYPE_FWH)
+        	chip_writeb(0, wrprotect);

// now start it
    chip_writeb(0x20, bios + page);