stm32f3: flash: add clear write protect flag

Could actually move to flash_common_f, but they have different names for
the same bit at present.

2 files changed, 7 insertions, 0 deletions

diff --git a/include/libopencm3/stm32/f3/flash.h b/include/libopencm3/stm32/f3/flash.h
index 3de23cd6..ca561efb 100644
--- a/include/libopencm3/stm32/f3/flash.h
+++ b/include/libopencm3/stm32/f3/flash.h
@@ -98,6 +98,7 @@
 BEGIN_DECLS
 
 void flash_clear_pgerr_flag(void);
+void flash_clear_wrprterr_flag(void);
 
 END_DECLS
 
diff --git a/lib/stm32/f3/flash.c b/lib/stm32/f3/flash.c
index f8aba91b..ffd03c30 100644
--- a/lib/stm32/f3/flash.c
+++ b/lib/stm32/f3/flash.c
@@ -51,6 +51,11 @@ void flash_clear_pgerr_flag(void)
 	FLASH_SR |= FLASH_SR_PGERR;
 }
 
+void flash_clear_wrprterr_flag(void)
+{
+	FLASH_SR |= FLASH_SR_WRPRTERR;
+}
+
 /*---------------------------------------------------------------------------*/
 /** @brief Clear All Status Flags
 
@@ -60,6 +65,7 @@ Clears program error, end of operation, busy flags.
 void flash_clear_status_flags(void)
 {
 	flash_clear_pgerr_flag();
+	flash_clear_wrprterr_flag();
 	flash_clear_eop_flag();
 }