From: Paul Fertser <fercerpav@gmail.com>
Date: Thu, 3 Nov 2016 14:31:33 +0000 (+0300)
Subject: flash: nor: mdr: do not mass erase when clearing INFO memory
X-Git-Tag: v0.10.0-rc1~64
X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=commitdiff_plain;h=607edefb53ae5ca4120a7967c4cfed3184bb09d2

flash: nor: mdr: do not mass erase when clearing INFO memory

The MDR parts have two kinds of memory: main (regular memory-mapped
memory for code and data) and "info" (not memory-mapped). When OpenOCD
is requested to erase the info memory block, it should do just that,
instead of erasing everything including main memory.

Change-Id: I498142ca50d4a7b669b7776180b0dbcea63a5328
Reported-by: Eldar Khayrullin <eldar.khayrullin@mail.ru>
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Reviewed-on: http://openocd.zylin.com/3853
Tested-by: jenkins
Reviewed-by: Eldar Khayrullin <eldar.khayrullin@mail.ru>
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
---

diff --git a/src/flash/nor/mdr.c b/src/flash/nor/mdr.c
index 374cb6f297..8ceb1bf465 100644
--- a/src/flash/nor/mdr.c
+++ b/src/flash/nor/mdr.c
@@ -171,7 +171,8 @@ static int mdr_erase(struct flash_bank *bank, int first, int last)
 	if (retval != ERROR_OK)
 		goto reset_pg_and_lock;
 
-	if ((first == 0) && (last == (bank->num_sectors - 1))) {
+	if ((first == 0) && (last == (bank->num_sectors - 1)) &&
+		!mdr_info->mem_type) {
 		retval = mdr_mass_erase(bank);
 		goto reset_pg_and_lock;
 	}