From: Elliott Partridge Date: Wed, 28 May 2014 16:20:44 +0000 (-0400) Subject: STM32F2x: Don't clear FLASH_OPTCR bits when locking register X-Git-Tag: v0.9.0-rc1~393 X-Git-Url: https://review.openocd.org/gitweb?a=commitdiff_plain;h=7bcf1d838dc2b007598df9594725d17e918c75e2;hp=7bcf1d838dc2b007598df9594725d17e918c75e2;p=openocd.git STM32F2x: Don't clear FLASH_OPTCR bits when locking register stm32x_write_options is locking the FLASH_OPTCR register by writing 0x00000001 to it, which clears the other bits. This causes problems with subsequent flash operations; the hardware is probably seeing the write protection bits in the register set to '0' (protect), causing a WRPERR. This patch ORs the value of the register with 0x00000001, so that the only change is the lock bit itself. Change-Id: I0e3ca9aa6563ce1b57a01fc0faf7563b6b85f620 Signed-off-by: Elliott Partridge Reviewed-on: http://openocd.zylin.com/2155 Tested-by: jenkins Reviewed-by: Spencer Oliver ---