Bug in am29f040b.c causes flash device not to be recognised

[Peter Fox]

The following patch needs to be applied to am29f040b.c in the
utils/flash_and_burn directory:

----------------------
--- am29f040b-nv.c	Wed Nov  5 14:33:34 2003
+++ am29f040b.c	Wed Nov  5 14:20:26 2003
@@ -76,8 +76,8 @@
 	*(bios + 0x2AA) = 0x55;
 	*(bios + 0x555) = 0x90;
 
-	id1 = *(unsigned char *) bios;
-	id2 = *(unsigned char *) (bios + 0x01);
+	id1 = *(volatile unsigned char *) bios;
+	id2 = *(volatile unsigned char *) (bios + 0x01);
 
 	*bios = 0xF0;

----------------------

My C compiler was reordering the writes and reads, so that
the flash wasn't ready to give an id when the reads occurred.

I notice that all the other flash devices already seem to have
this correct.

-- 
Peter Fox <peter.fox at aeroflex.com>     Aeroflex Test Solutions
Principal Design Engineer                            Stevenage
Any opinions expressed above are      http://www.aeroflex.com/
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