1 /* tmpl.S -- Template for new boards.
3 * Copyright (c) 2014 Authors
5 * Contributor Stefan Wallentowitz <stefan.wallentowitz@saunalahti.fi>
7 * The authors hereby grant permission to use, copy, modify, distribute,
8 * and license this software and its documentation for any purpose, provided
9 * that existing copyright notices are retained in all copies and that this
10 * notice is included verbatim in any distributions. No written agreement,
11 * license, or royalty fee is required for any of the authorized uses.
12 * Modifications to this software may be copyrighted by their authors
13 * and need not follow the licensing terms described here, provided that
14 * the new terms are clearly indicated on the first page of each file where
18 #include "../include/or1k-asm.h"
19 #include "../include/or1k-nop.h"
22 * Define symbols to be used during startup - file is linked at compile time
25 .weak _or1k_board_mem_base
26 .weak _or1k_board_mem_size
27 .weak _or1k_board_clk_freq
29 // TODO: set memory base here
30 _or1k_board_mem_base: .long 0x0
31 // TODO: set memory size here
32 _or1k_board_mem_size: .long 0x0
34 // TODO: set board clock frequency here
35 _or1k_board_clk_freq: .long 50000000
37 // TODO: UART configuration
38 .weak _or1k_board_uart_base
39 .weak _or1k_board_uart_baud
40 .weak _or1k_board_uart_IRQ
41 _or1k_board_uart_base: .long 0x0
42 _or1k_board_uart_baud: .long 0
43 _or1k_board_uart_IRQ: .long 0
45 // TODO: Board exit function, default: loop
46 .weak _or1k_board_exit
48 l.nop OR1K_NOP_EXIT_SILENT
50 OR1K_DELAYED_NOP(l.j .Lexitloop)
52 // TODO: Early initialization (if really needed!)
53 .global _or1k_board_init_early
54 _or1k_board_init_early:
55 OR1K_DELAYED_NOP(l.jr r9)
57 // TODO: Board initialization
58 .weak _or1k_board_init
60 OR1K_DELAYED_NOP(l.jr r9)