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/* optimsoc.S -- Support for OpTiMSoC systems.
*
* Copyright (c) 2014 Authors
*
* Contributor Stefan Wallentowitz <stefan.wallentowitz@saunalahti.fi>
*
* The authors hereby grant permission to use, copy, modify, distribute,
* and license this software and its documentation for any purpose, provided
* that existing copyright notices are retained in all copies and that this
* notice is included verbatim in any distributions. No written agreement,
* license, or royalty fee is required for any of the authorized uses.
* Modifications to this software may be copyrighted by their authors
* and need not follow the licensing terms described here, provided that
* the new terms are clearly indicated on the first page of each file where
* they apply.
*/
#include "../include/or1k-asm.h"
#include "../include/or1k-nop.h"
#define OPTIMSOC_NA_BASE 0xe0000000
#define OPTIMSOC_NA_REGS OPTIMSOC_NA_BASE + 0x00000
#define OPTIMSOC_NA_LMEM_SIZE OPTIMSOC_NA_REGS + 0x24
/*
* Define symbols to be used during startup - file is linked at compile time
*
*/
.weak _or1k_board_mem_base
.weak _or1k_board_mem_size
.weak _or1k_board_clk_freq
_or1k_board_mem_base: .long 0x0
_or1k_board_mem_size: .long 0x0
_or1k_board_clk_freq: .long 50000000
.weak _or1k_board_uart_base
.weak _or1k_board_uart_baud
.weak _or1k_board_uart_IRQ
_or1k_board_uart_base: .long 0x0
_or1k_board_uart_baud: .long 0
_or1k_board_uart_IRQ: .long 0
.weak _or1k_board_exit
_or1k_board_exit:
l.nop OR1K_NOP_K_EXIT
.Lexitloop:
OR1K_DELAYED_NOP(l.j .Lexitloop)
.global _or1k_board_init_early
_or1k_board_init_early:
#ifndef __OR1K_MULTICORE__
l.nop 0x1
.die:
OR1K_DELAYED_NOP(l.j die)
#endif
l.movhi r1,hi(OPTIMSOC_NA_LMEM_SIZE)
l.ori r1,r1,lo(OPTIMSOC_NA_LMEM_SIZE)
l.lwz r1,0(r1)
l.movhi r2,hi(_or1k_board_mem_size)
l.ori r2,r2,lo(_or1k_board_mem_size)
l.sw 0(r2),r1
.weak _or1k_board_init
_or1k_board_init:
OR1K_DELAYED_NOP(l.jr r9)
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