Add support for SFDP (JESD216)
Similar to modules using the opaque programmer framework (e.g. ICH Hardware
Sequencing) this uses a template struct flashchip element in flashchips.c with
a special probe function that fills the obtained values into that struct.
This allows yet unknown SPI chips to be supported (read, erase, write) almost
as if it was already added to flashchips.c.
Documentation used:
http://www.jedec.org/standards-documents/docs/jesd216 (2011-04)
W25Q32BV data sheet Revision F (2011-04-01)
EN25QH16 data sheet Revision F (2011-06-01)
MX25L6436E data sheet Revision 1.8 (2011-12-26)
Tested-by: David Hendricks <dhendrix@google.com>
on W25Q64CV + dediprog
Tested-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
on a 2010 MX25L6436E with preliminary (i.e. incorrect) SFDP implementation + serprog
Thanks also to Michael Karcher for his comments and preliminary review!
Corresponding to flashrom svn r1500.
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
diff --git a/flashchips.h b/flashchips.h
index 8587ce9..de3c79d 100644
--- a/flashchips.h
+++ b/flashchips.h
@@ -34,8 +34,11 @@
* SPI parts have 16-bit device IDs if they support RDID.
*/
-#define GENERIC_MANUF_ID 0xffff /* Check if there is a vendor ID */
-#define GENERIC_DEVICE_ID 0xffff /* Only match the vendor ID */
+#define GENERIC_MANUF_ID 0xFFFF /* Check if there is a vendor ID */
+#define GENERIC_DEVICE_ID 0xFFFF /* Only match the vendor ID */
+#define SFDP_DEVICE_ID 0xFFFE
+#define PROGMANUF_ID 0xFFFE /* dummy ID for opaque chips behind a programmer */
+#define PROGDEV_ID 0x01 /* dummy ID for opaque chips behind a programmer */
#define ALLIANCE_ID 0x52 /* Alliance Semiconductor */
#define ALLIANCE_AS29F002B 0x34
@@ -646,7 +649,4 @@
#define WINBOND_W49V002A 0xB0
#define WINBOND_W49V002FA 0x32
-#define PROGMANUF_ID 0xFFFE /* dummy ID for opaque chips behind a programmer */
-#define PROGDEV_ID 0x01 /* dummy ID for opaque chips behind a programmer */
-
#endif /* !FLASHCHIPS_H */