flash/nor: add flash mdw/h/b commands

Some flash banks are not mapped in the target memory
(e.g. SPI flash, some special pages).

Add flash version of mdw/h/b which reads data using
the flash driver.

Change-Id: I66910e0a69cf523fe5ca1ed6ce7b9e8e176aef4a
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4776
Tested-by: jenkins
Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/doc/openocd.texi b/doc/openocd.texi
index 35a41d4..2dbe770 100644
--- a/doc/openocd.texi
+++ b/doc/openocd.texi
@@ -5121,6 +5121,19 @@ each block, and the specified length must stay within that bank.
 @end deffn
 @comment no current checks for errors if fill blocks touch multiple banks!
 
+@deffn Command {flash mdw} addr [count]
+@deffnx Command {flash mdh} addr [count]
+@deffnx Command {flash mdb} addr [count]
+Display contents of address @var{addr}, as
+32-bit words (@command{mdw}), 16-bit halfwords (@command{mdh}),
+or 8-bit bytes (@command{mdb}).
+If @var{count} is specified, displays that many units.
+Reads from flash using the flash driver, therefore it enables reading
+from a bank not mapped in target address space.
+The flash bank to use is inferred from the @var{address} of
+each block, and the specified length must stay within that bank.
+@end deffn
+
 @deffn Command {flash write_bank} num filename [offset]
 Write the binary @file{filename} to flash bank @var{num},
 starting at @var{offset} bytes from the beginning of the bank. If @var{offset}