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flash/nor/stm32f1x: Use of protection blocks, improved option bytes handling

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Handle write protection status in blocks instead of sectors, removing
unnecessary complexity in the process. Now closer to stm32f2x.
Support sequential modification of option bytes by read/modify/write
directly to option bytes area instead of always starting with the
currently loaded bytes from FLASH_OBR/WRPR registers.
Added new command 'options_load' to force re-load of option bytes w/o
having to power cycle target.

Change-Id: I5c76191e29c17a1e11482df06379d10ca8d6d04d
Signed-off-by: Dominik Peklo <dom.peklo@gmail.com>
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: http://openocd.zylin.com/4576
Tested-by: jenkins
Reviewed-by: Jan Vojtěch <honza.vojtech@gmail.com>
This commit is contained in:
Dominik Peklo
2018-07-12 20:44:28 +10:00
committed by Matthias Welwarsky
parent 1e3ba2046c
commit cea40152f8
2 changed files with 196 additions and 227 deletions
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18
doc/openocd.texi
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@@ -6429,23 +6429,24 @@ flash bank $_FLASHNAME stm32f1x 0x08080000 0 0 0 $_TARGETNAME
Some stm32f1x-specific commands are defined:
@deffn Command {stm32f1x lock} num
Locks the entire stm32 device.
Locks the entire stm32 device against reading.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@deffn Command {stm32f1x unlock} num
Unlocks the entire stm32 device.
Unlocks the entire stm32 device for reading. This command will cause
a mass erase of the entire stm32 device if previously locked.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@deffn Command {stm32f1x mass_erase} num
Mass erases the entire stm32f1x device.
Mass erases the entire stm32 device.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@deffn Command {stm32f1x options_read} num
Read and display the stm32 option bytes written by
the @command{stm32f1x options_write} command.
Reads and displays active stm32 option bytes loaded during POR
or upon executing the @command{stm32f1x options_load} command.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@@ -6453,6 +6454,13 @@ The @var{num} parameter is a value shown by @command{flash banks}.
Writes the stm32 option byte with the specified values.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@deffn Command {stm32f1x options_load} num
Generates a special kind of reset to re-load the stm32 option bytes written
by the @command{stm32f1x options_write} or @command{flash protect} commands
without having to power cycle the target. Not applicable to stm32f1x devices.
The @var{num} parameter is a value shown by @command{flash banks}.
@end deffn
@end deffn
@deffn {Flash Driver} stm32f2x

405
src/flash/nor/stm32f1x.c
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