[coreboot] [PATCH] flashrom: add SST49LF020 support

Sven Schnelle svens at stackframe.org
Sun Jan 4 20:11:57 CET 2009


Hi List,

i've added support for the SST 49LF020 Flash chip to flashrom. Basically
only the device Id differs, the programming algorithm seems to be the
same as for SST 49LF020A.

I've only tested read so far, i'm a bit reluctant to test
erase/programming without a backup BIOS chip :)

Index: flash.h
===================================================================
--- flash.h	(revision 3845)
+++ flash.h	(working copy)
@@ -356,6 +356,7 @@
 #define SST_39VF040		0xD7
 #define SST_49LF040B		0x50
 #define SST_49LF040		0x51
+#define SST_49LF020            0x61
 #define SST_49LF020A		0x52
 #define SST_49LF080A		0x5B
 #define SST_49LF002A		0x57
Index: flashchips.c
===================================================================
--- flashchips.c	(revision 3845)
+++ flashchips.c	(working copy)
@@ -626,6 +626,12 @@
 	 probe_49lfxxxc, erase_49lfxxxc, write_49lfxxxc
 	},
 
+	{"SST", "SST49LF020", SST_ID, SST_49LF020,
+	 256, 16 * 1024,
+	 TEST_UNTESTED,
+	 probe_jedec, erase_49lf040, write_49lf040
+	},
+
 	{"SST", "SST49LF020A", SST_ID, SST_49LF020A,
 	 256, 16 * 1024,
 	 TEST_UNTESTED,





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