commit 262e1eaafabf32d33a9fa0b03b3c8ea426c5ae1b
author Aurelien Jarno <aurelien@aurel32.net> Mon Sep 03 22:47:03 2012 +0200
committer Aurelien Jarno <aurelien@aurel32.net> Wed Sep 19 21:40:47 2012 +0200
tree 4b98711fad6ae90c9666f35b0deb104c0287e165
parent d104bebd073cc05a1a572529a060857a377be6aa

pflash_cfi01: fix vendor specific extended query

pflash_cfi01 announces a version number of 1.1, which implies
"Protection Register Information" and "Burst Read information"
sections, which are not provided.

Decrease the version number to 1.0 so that only the "Protection
Register Information" section is needed.

Set the number of protection fields (0x3f) to 0x01, as 0x00 means 256
protections field, which makes the CFI table bigger than the current
implementation, causing some kernels to fail to read it.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

hw/pflash_cfi01.c

diff --git a/hw/pflash_cfi01.c b/hw/pflash_cfi01.c
index d1c7423..d56b51a 100644
--- a/hw/pflash_cfi01.c
+++ b/hw/pflash_cfi01.c
@@ -711,7 +711,7 @@
     pfl->cfi_table[0x33] = 'I';
 
     pfl->cfi_table[0x34] = '1';
-    pfl->cfi_table[0x35] = '1';
+    pfl->cfi_table[0x35] = '0';
 
     pfl->cfi_table[0x36] = 0x00;
     pfl->cfi_table[0x37] = 0x00;
@@ -723,6 +723,8 @@
     pfl->cfi_table[0x3b] = 0x00;
     pfl->cfi_table[0x3c] = 0x00;
 
+    pfl->cfi_table[0x3f] = 0x01; /* Number of protection fields */
+
     return pfl;
 }