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flash/nor: consolidate flash protect/protect_check

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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>
This commit is contained in:
Tomas Vanek
2018-11-15 12:19:25 +01:00
parent ff555afc02
commit 9542cb7c3d
21 changed files with 31 additions and 213 deletions
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20
src/flash/nor/lpc2900.c
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@@ -1035,18 +1035,13 @@ static int lpc2900_erase(struct flash_bank *bank, int first, int last)
return ERROR_OK;
}
static int lpc2900_protect(struct flash_bank *bank, int set, int first, int last)
{
/* This command is not supported.
* "Protection" in LPC2900 terms is handled transparently. Sectors will
* automatically be unprotected as needed.
* Instead we use the concept of sector security. A secured sector is shown
* as "protected" in OpenOCD. Sector security is a permanent feature, and
* cannot be disabled once activated.
*/
return ERROR_OK;
}
/* lpc2900_protect command is not supported.
* "Protection" in LPC2900 terms is handled transparently. Sectors will
* automatically be unprotected as needed.
* Instead we use the concept of sector security. A secured sector is shown
* as "protected" in OpenOCD. Sector security is a permanent feature, and
* cannot be disabled once activated.
*/
/**
* Write data to flash.
@@ -1591,7 +1586,6 @@ struct flash_driver lpc2900_flash = {
.commands = lpc2900_command_handlers,
.flash_bank_command = lpc2900_flash_bank_command,
.erase = lpc2900_erase,
.protect = lpc2900_protect,
.write = lpc2900_write,
.read = default_flash_read,
.probe = lpc2900_probe,