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/*
* Copyright (c) 2011 Aeroflex Gaisler
*
* BSD license:
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <asm-leon/head.h>
.section .text
/* ------- */
.weak _hardreset_svt
.set _hardreset_svt, __hardreset_svt
/* ------- */
.global _hardreset, _hardreset_svt_real
! reset entry point for single vector trapping. Try enable svt
_hardreset_svt_real:
nop
__hardreset_svt:
mov %psr, %l3
srl %l3, 24, %g5
and %g5, 3, %g5
subcc %g5, 3, %g0 ! leon2: 0 or 2, leon3: 3
bne .L2
nop
mov %asr17, %g5 ! set svt
set 1<<13,%g1
or %g5,%g1,%g5
mov %g5, %asr17
nop; nop; nop
mov %asr17,%g5 ! check svt
andcc %g5, %g1, %g0
beq .L2
nop
set _hardreset,%l3
jmp %l3
nop
.L2: ta 0x0 ! no svt implemented (ether leon2 or svt != 1)
nop
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