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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* BSP specific initialization for Sparc64 RTEMS -- sun4u BSP
*
* This code defines start code specific to the sun4u BSP
*/
/*
* COPYRIGHT (c) 2010 Gedare Bloom.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <rtems/asm.h>
#include <rtems/score/cpu.h>
#include <traptable.h>
#define LSU_CR_IM_MASK (0x0004) /* bit 2 */
#define LSU_CR_DM_MASK (0x0008) /* bit 3 */
#define STACK_WINDOW_SAVE_AREA_SIZE (16*8)
.register %g2, #scratch
.register %g3, #scratch
.section .text
PUBLIC(_BSP_init)
.global _BSP_init
SYM(_BSP_init):
save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp
! copy the tba
sethi %hi(real_trap_table), %o0
rdpr %tba, %o2
stx %o2, [%o0 + %lo(real_trap_table)]
! /* copy firmware trap table so that RTEMS can install ISR handlers */
! setx SYM(trap_table), %l0, %o0
! rdpr %tba, %o1
! set TABLE_SIZE, %o2
! call memcpy
! nop
mov %g0, %o0
call _take_mmu
nop
ret
restore
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