newlib-cygwin/libgloss/or1k/boards/tmpl.S

61 lines
1.8 KiB
ArmAsm

/* tmpl.S -- Template for new boards.
*
* 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 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
// TODO: set memory base here
_or1k_board_mem_base: .long 0x0
// TODO: set memory size here
_or1k_board_mem_size: .long 0x0
// TODO: set board clock frequency here
_or1k_board_clk_freq: .long 50000000
// TODO: UART configuration
.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
// TODO: Board exit function, default: loop
.weak _or1k_board_exit
_or1k_board_exit:
l.nop OR1K_NOP_EXIT_SILENT
.Lexitloop:
OR1K_DELAYED_NOP(l.j .Lexitloop)
// TODO: Early initialization (if really needed!)
.global _or1k_board_init_early
_or1k_board_init_early:
OR1K_DELAYED_NOP(l.jr r9)
// TODO: Board initialization
.weak _or1k_board_init
_or1k_board_init:
OR1K_DELAYED_NOP(l.jr r9)