Make flash_driver methods protect() and protect_check()
optional.
Remove dummy definitions of these methods from the drivers
which do not implement protection handling.
Some drivers did not define protect method. It raised segfault
before this change and now it is handled properly.
Lot of drivers returned ERROR_OK from dummy protect()
- now flash_driver_protect() returns an error if not handled by the driver.
Change-Id: I2d4a0da316bf03c6379791b1b1c6198fbf22e66c
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4765
Tested-by: jenkins
Reviewed-by: Andreas Bolsch <hyphen0break@gmail.com>
Reviewed-by: Christopher Head <chead@zaber.com>
some chips unprotect more than the range asked for. The
protect fn, must unprotect/protect minimally the range given.
Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
Final target is to force bus_width size during CFI flash
read.
In this first step I need to replace default flash read
with flash specific implementation.
This patch introduces:
- flash_driver_read() layer;
- default_flash_read(), backward compatible;
- read() callback in struct flash_driver;
- proper initialization in every flash_driver instance.
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Move the bulk of the flash.h file into flash/nor/core.h, leaving an
empty husk that will be removed in the next patch.
The NOR driver structure is an implementation detail, so move it into
its own private header file <flash/nor/driver.h> along with helper
declaration for finding them by name.
