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authorHenrik Nilsson <henrik.nilsson@bytequest.se>2013-02-27 19:16:47 +0100
committerSpencer Oliver <spen@spen-soft.co.uk>2013-04-02 15:11:02 +0000
commit70fb53f90b4134cf10de3b504f56ec7c4a248b63 (patch)
treecf9b4986b74ac6930fb319454d6af860e34721f4 /contrib/loaders
parent704fc7eb3dea26308a0af09c2f4a35b64ad3346f (diff)
Added support for ARMv7-M in arm io.
Added support for ARMv7-M targets in arm_nandwrite and arm_nandread. Change-Id: Iab1d78d401f735e191c6a8519f3619035a300fae Signed-off-by: Henrik Nilsson <henrik.nilsson@bytequest.se> Reviewed-on: http://openocd.zylin.com/1188 Tested-by: jenkins Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>
Diffstat (limited to 'contrib/loaders')
-rw-r--r--contrib/loaders/flash/armv7m_io.s60
1 files changed, 60 insertions, 0 deletions
diff --git a/contrib/loaders/flash/armv7m_io.s b/contrib/loaders/flash/armv7m_io.s
new file mode 100644
index 00000000..3bd90ca6
--- /dev/null
+++ b/contrib/loaders/flash/armv7m_io.s
@@ -0,0 +1,60 @@
+/***************************************************************************
+ * Copyright (C) 2013 by Henrik Nilsson *
+ * henrik.nilsson@bytequest.se *
+ * *
+ * 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
+ .arch armv7-m
+ .thumb
+ .thumb_func
+
+ .align 4
+
+/* Inputs:
+ * r0 buffer address
+ * r1 NAND data address (byte wide)
+ * r2 buffer length
+ */
+read:
+ ldrb r3, [r1]
+ strb r3, [r0], #1
+ subs r2, r2, #1
+ bne read
+
+done_read:
+ bkpt #0
+
+ .align 4
+
+/* Inputs:
+ * r0 NAND data address (byte wide)
+ * r1 buffer address
+ * r2 buffer length
+ */
+write:
+ ldrb r3, [r1], #1
+ strb r3, [r0]
+ subs r2, r2, #1
+ bne write
+
+done_write:
+ bkpt #0
+
+ .end
+