Add support for more atmel chips

AT49F002
AT49F002N
AT49F002T
AT49F002NT

Only tested the read function on AT49F002T.
datasheet @ http://www.atmel.com/atmel/acrobat/doc1017.pdf



Corresponding to flashrom svn r163 and coreboot v2 svn r3003.
Signed-off-by: Frederico Silva <frederico.silva@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>

flash.h

@@ -74,6 +74,8 @@ extern struct flashchip flashchips[];
 #define ATMEL_ID		0x1F	/* Atmel */
 #define AT_29C040A		0xA4
 #define AT_29C020		0xDA
+#define AT_49F002N		0x07	/* for AT49F002(N)  */
+#define AT_49F002NT		0x08	/* for AT49F002(N)T */
 
 #define CATALYST_ID		0x31	/* Catalyst */
 

flashchips.c

@@ -38,6 +38,10 @@ struct flashchip flashchips[] = {
 	 probe_jedec,	erase_chip_jedec, write_jedec},
 	{"At29C020",	ATMEL_ID,	AT_29C020,	256, 256,
 	 probe_jedec,	erase_chip_jedec, write_jedec},
+	{"At49F002(N)",	ATMEL_ID,	AT_49F002N,	256, 256,
+	 probe_jedec,	erase_chip_jedec, write_jedec},
+	{"At49F002(N)T",ATMEL_ID,	AT_49F002NT,	256, 256,
+	 probe_jedec,	erase_chip_jedec, write_jedec},
 	{"MBM29F400TC",	FUJITSU_ID,	MBM29F400TC,	512, 64 * 1024,
 	 probe_m29f400bt, erase_m29f400bt, write_linuxbios_m29f400bt},
 	{"MX29F002",	MX_ID,		MX_29F002,	256, 64 * 1024,