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authorCástor Muñoz <cmvidal@gmail.com>2016-02-04 23:05:17 +0100
committerCástor Muñoz <cmvidal@gmail.com>2017-04-14 00:03:42 +0200
commit346423c040fe4ac31dae7c1afcb1d853cc80635c (patch)
treebd8dd4c55f083a1162f7019188977213a20dc41c /rbutil/mks5lboot/dualboot/init.S
parenteefc7c73e2495decdc6f242515696fe0e3f85609 (diff)
downloadrockbox-mks5lboot_1.0.tar.gz
rockbox-mks5lboot_1.0.zip
mks5lboot v1.0 - dualboot installer for s5l8702 targetsmks5lboot_1.0
A tool to install/uninstall a bootloader into a s5l8702 based device: - iPod Classic 6G - iPod Nano 3G (TODO) See mks5lboot/README for detailed info. Change-Id: I451d2aaff34509ebd356e4660647e5222c5d3409
Diffstat (limited to 'rbutil/mks5lboot/dualboot/init.S')
-rw-r--r--rbutil/mks5lboot/dualboot/init.S43
1 files changed, 43 insertions, 0 deletions
diff --git a/rbutil/mks5lboot/dualboot/init.S b/rbutil/mks5lboot/dualboot/init.S
new file mode 100644
index 0000000000..bd049515f4
--- /dev/null
+++ b/rbutil/mks5lboot/dualboot/init.S
@@ -0,0 +1,43 @@
+/***************************************************************************
+ * __________ __ ___.
+ * Open \______ \ ____ ____ | | _\_ |__ _______ ___
+ * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
+ * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
+ * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
+ * \/ \/ \/ \/ \/
+ * $Id:
+ *
+ * Copyright © 2009 Michael Sparmann
+ *
+ * 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+ .section .init.text, "ax", %progbits
+ .global _start
+
+_start:
+ mov r0, #0xD7
+ msr CPSR_c, r0 @ Abort mode, IRQs/FIQs disabled
+ ldr sp, =_exception_stack
+
+ mov r0, #0xDB
+ msr CPSR_c, r0 @ Undefined Instruction mode, IRQs/FIQs disabled
+ ldr sp, =_exception_stack
+
+ mov r0, #0xD3
+ msr CPSR_c, r0 @ Supervisor mode, IRQs/FIQs disabled
+ ldr sp, =_supervisor_stack
+
+ MOV R0, #0x00050000
+ ORR R0, #0x00000078
+ MCR p15, 0, R0, c1, c0, 0 @ Get rid of some CPU "features" likely to cause trouble
+
+ bl main
+ .ltorg