303c486f4f
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30920 a1c6a512-1295-4272-9138-f99709370657
39 lines
1.4 KiB
ArmAsm
39 lines
1.4 KiB
ArmAsm
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2011 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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.text
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.global start
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@ int start(uint32_t arg, uint32_t *result_id)
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start:
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#if defined(SANSA_FUZEPLUS)
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/* If volume down key is hold, return so that the OF can boot */
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ldr r2, =0x80018610 @ HW_PINCTRL_DIN1
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ldr r2, [r2]
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tst r2, #0x40000000 @ bit 30, active low
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moveq r0, #0 @ return 0, continue boot
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bxeq lr
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/* otherwise jump to section given as argument */
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str r0, [r1]
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mov r0, #1
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bx lr
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#else
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#error No target defined !
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#endif
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