From: Karl Palsson <karlp@tweak.net.au>
Date: Wed, 9 Aug 2017 17:11:29 +0000 (+0000)
Subject: stm32l1: Devid 0x429 only has 8bit flash size register
X-Git-Tag: v0.11.0-rc1~1359
X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=commitdiff_plain;h=04b23ef5022bd0ebbcac7ceed5112d822bbd966d

stm32l1: Devid 0x429 only has 8bit flash size register

A footnote in RM0038r14.

Change-Id: Ic31894d846fbbe917a7290b2b7ff8fb582bb65da
Signed-off-by: Karl Palsson <karlp@tweak.net.au>
Reviewed-on: http://openocd.zylin.com/4198
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-by: Spencer Oliver <spen@spen-soft.co.uk>
---

diff --git a/src/flash/nor/stm32lx.c b/src/flash/nor/stm32lx.c
index e4f499d3cb..0c2fddc920 100644
--- a/src/flash/nor/stm32lx.c
+++ b/src/flash/nor/stm32lx.c
@@ -790,6 +790,11 @@ static int stm32lx_probe(struct flash_bank *bank)
 			flash_size_in_kb = 256;
 	}
 
+	/* 0x429 devices only use the lowest 8 bits of the flash size register */
+	if (retval == ERROR_OK && (device_id & 0xfff) == 0x429) {
+		flash_size_in_kb &= 0xff;
+	}
+
 	/* Failed reading flash size or flash size invalid (early silicon),
 	 * default to max target family */
 	if (retval != ERROR_OK || flash_size_in_kb == 0xffff || flash_size_in_kb == 0) {