debuggers: import openocd-0.7.0
Initial check-in of openocd-0.7.0 as it can be downloaded from http://sourceforge.net/projects/openocd/files/openocd/0.7.0/ Any modifications will follow. Change-Id: I6949beaefd589e046395ea0cb80f4e1ab1654d55
This commit is contained in:
78
debuggers/openocd/contrib/loaders/flash/stellaris.s
Normal file
78
debuggers/openocd/contrib/loaders/flash/stellaris.s
Normal file
@ -0,0 +1,78 @@
|
||||
/***************************************************************************
|
||||
* Copyright (C) 2006 by Magnus Lundin *
|
||||
* lundin@mlu.mine.nu *
|
||||
* *
|
||||
* Copyright (C) 2008 by Spencer Oliver *
|
||||
* spen@spen-soft.co.uk *
|
||||
* *
|
||||
* 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., *
|
||||
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
|
||||
***************************************************************************/
|
||||
|
||||
.text
|
||||
.syntax unified
|
||||
.cpu cortex-m3
|
||||
.thumb
|
||||
.thumb_func
|
||||
|
||||
/*
|
||||
* Params :
|
||||
* r0 = workarea start
|
||||
* r1 = workarea end
|
||||
* r2 = target address
|
||||
* r3 = count (32bit words)
|
||||
*
|
||||
* Clobbered:
|
||||
* r4 = pFLASH_CTRL_BASE
|
||||
* r5 = FLASHWRITECMD
|
||||
* r7 - rp
|
||||
* r8 - wp, tmp
|
||||
*/
|
||||
|
||||
write:
|
||||
ldr r4, pFLASH_CTRL_BASE
|
||||
ldr r5, FLASHWRITECMD
|
||||
|
||||
wait_fifo:
|
||||
ldr r8, [r0, #0] /* read wp */
|
||||
cmp r8, #0 /* abort if wp == 0 */
|
||||
beq exit
|
||||
ldr r7, [r0, #4] /* read rp */
|
||||
cmp r7, r8 /* wait until rp != wp */
|
||||
beq wait_fifo
|
||||
|
||||
mainloop:
|
||||
str r2, [r4, #0] /* FMA - write address */
|
||||
add r2, r2, #4 /* increment target address */
|
||||
ldr r8, [r7], #4
|
||||
str r8, [r4, #4] /* FMD - write data */
|
||||
str r5, [r4, #8] /* FMC - enable write */
|
||||
busy:
|
||||
ldr r8, [r4, #8]
|
||||
tst r8, #1
|
||||
bne busy
|
||||
|
||||
cmp r7, r1 /* wrap rp at end of buffer */
|
||||
it cs
|
||||
addcs r7, r0, #8 /* skip loader args */
|
||||
str r7, [r0, #4] /* store rp */
|
||||
subs r3, r3, #1 /* decrement word count */
|
||||
cbz r3, exit /* loop if not done */
|
||||
b wait_fifo
|
||||
exit:
|
||||
bkpt #0
|
||||
|
||||
pFLASH_CTRL_BASE: .word 0x400FD000
|
||||
FLASHWRITECMD: .word 0xA4420001
|
||||
Reference in New Issue
Block a user