flash/nor, contrib/loaders: add stm32 loaders Makefile and generated .inc

[openocd] / contrib / loaders / flash / stm32 / stm32lx.S

diff --git a/contrib/loaders/flash/stm32/stm32lx.S b/contrib/loaders/flash/stm32/stm32lx.S
new file mode 100644 (file)
index 0000000..bcae7a4
--- /dev/null
+++ b/contrib/loaders/flash/stm32/stm32lx.S
@@ -0,0 +1,63 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Spencer Oliver                                  *
+ *   spen@spen-soft.co.uk                                                  *
+ *                                                                         *
+ *   Copyright (C) 2011 Øyvind Harboe                                      *
+ *   oyvind.harboe@zylin.com                                               *
+ *                                                                         *
+ *   Copyright (C) 2011 Clement Burin des Roziers                          *
+ *   clement.burin-des-roziers@hikob.com                                   *
+ *                                                                         *
+ *   Copyright (C) 2017 Armin van der Togt                                 *
+ *   armin@otheruse.nl                                                     *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
+ ***************************************************************************/
+
+
+       .text
+       .syntax unified
+       .cpu cortex-m0
+       .thumb
+
+/*
+       r0 - destination address
+       r1 - source address
+       r2 - count
+*/
+
+       .thumb_func
+       .global _start
+_start:
+       // r2 = source + count * 4
+       lsls    r2, r2, #2
+       adds    r2, r1, r2
+       // Go to compare
+       b       test_done
+write_word:
+       // load word from address in r1 and increase r1 by 4
+       ldmia r1!, {r3}
+       // store word to address in r0 and increase r0 by 4
+       stmia r0!, {r3}
+test_done:
+       // compare r1 and r2
+       cmp     r1, r2
+       // loop if not equal
+       bne     write_word
+
+       // Set breakpoint to exit
+       bkpt    #0x00
+