Add detailed status register printing and unlocking for all ATMEL AT25* chips

Add support for Atmel AT25DF081A and AT25DQ161.

Some chips require EWSR before WRSR, others require WREN before WRSR,
and some support both variants. Add feature_bits to select the correct
SPI command, and default to EWSR.

Corresponding to flashrom svn r1115.

Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Tested-by: Steven Rosario
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/flash.h b/flash.h
index ff84602..6f0d7c0 100644
--- a/flash.h
+++ b/flash.h
@@ -69,8 +69,9 @@ enum chipbustype {
 
 /*
  * How many different erase functions do we have per chip?
+ * Atmel AT25FS010 has 6 different functions.
  */
-#define NUM_ERASEFUNCTIONS 5
+#define NUM_ERASEFUNCTIONS 6
 
 #define FEATURE_REGISTERMAP	(1 << 0)
 #define FEATURE_BYTEWRITES	(1 << 1)
@@ -82,6 +83,9 @@ enum chipbustype {
 #define FEATURE_ADDR_2AA	(1 << 2)
 #define FEATURE_ADDR_AAA	(2 << 2)
 #define FEATURE_ADDR_SHIFTED	(1 << 5)
+#define FEATURE_WRSR_EWSR	(1 << 6)
+#define FEATURE_WRSR_WREN	(1 << 7)
+#define FEATURE_WRSR_EITHER	(FEATURE_WRSR_EWSR | FEATURE_WRSR_WREN)
 
 struct flashchip {
 	const char *vendor;