diff --git a/flashchips.c b/flashchips.c
index c5e3d9e..dd937a7 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -52,8 +52,12 @@
 	 probe_jedec,	erase_chip_jedec, write_jedec,	NULL},
 	{"SST28SF040A", SST_ID,		SST_28SF040,	NULL, 512, 256,
 	 probe_28sf040, erase_28sf040, write_28sf040,	NULL},
+	{"SST39SF010A", SST_ID,		SST_39SF010,	NULL, 128, 4096,
+	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 	{"SST39SF020A", SST_ID,		SST_39SF020,	NULL, 256, 4096,
 	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
+	{"SST39SF040",  SST_ID,		SST_39SF040,	NULL, 512, 4096,
+	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 	{"SST39VF020",	SST_ID,		SST_39VF020,	NULL, 256, 4096,
 	 probe_jedec,	erase_chip_jedec, write_39sf020,NULL},
 // assume similar to 004B, ignoring data sheet
@@ -88,6 +92,8 @@
 	 probe_jedec,	erase_chip_jedec, write_49f002, NULL},
 	{"W39V040A", 	WINBOND_ID, 	W_39V040A,	NULL, 512, 64*1024,
 	 probe_jedec,	erase_chip_jedec, write_39sf020, NULL},
+	{"W39V040B",    WINBOND_ID,     W_39V040B,      NULL, 512, 64*1024,
+	 probe_jedec,   erase_chip_jedec, write_39sf020, NULL},
 	{"M29F040B",	ST_ID, 		ST_M29F040B,	NULL, 512, 64 * 1024,
 	 probe_29f040b, erase_29f040b,	write_29f040b,	NULL},
 	{"M29F400BT",	ST_ID,		ST_M29F400BT,	NULL, 512, 64 * 1024,