1 /*
2 * Copyright 2010 Wolfgang Grandegger <wg@denx.de>
3 *
4 * Copyright 2003, 2008 MontaVista Software Inc.
5 * Author: MontaVista Software, Inc. <source@mvista.com>
6 *
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
11 *
12 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
13 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
14 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
15 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
16 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
18 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
19 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
20 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22 *
23 * You should have received a copy of the GNU General Public License along
24 * with this program; if not, write to the Free Software Foundation, Inc.,
25 * 675 Mass Ave, Cambridge, MA 02139, USA.
26 */
27
28 #include <linux/init.h>
29 #include <linux/kernel.h>
30
31 #include <asm/bootinfo.h>
32 #include <asm/mach-au1x00/au1000.h>
33
34 #include <prom.h>
35
get_system_type(void)36 const char *get_system_type(void)
37 {
38 return "GPR";
39 }
40
prom_init(void)41 void __init prom_init(void)
42 {
43 unsigned char *memsize_str;
44 unsigned long memsize;
45
46 prom_argc = fw_arg0;
47 prom_argv = (char **)fw_arg1;
48 prom_envp = (char **)fw_arg2;
49
50 prom_init_cmdline();
51
52 memsize_str = prom_getenv("memsize");
53 if (!memsize_str)
54 memsize = 0x04000000;
55 else
56 strict_strtoul(memsize_str, 0, &memsize);
57 add_memory_region(0, memsize, BOOT_MEM_RAM);
58 }
59
prom_putchar(unsigned char c)60 void prom_putchar(unsigned char c)
61 {
62 alchemy_uart_putchar(UART0_PHYS_ADDR, c);
63 }
64