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/*
*
* BRIEF MODULE DESCRIPTION
* Cogent CSB250 board setup
*
* Copyright 2002 Cogent Computer Systems, Inc.
* dan@embeddededge.com
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/bootmem.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
#include <linux/string.h>
#include <linux/kernel.h>
int prom_argc;
char **prom_argv, **prom_envp;
extern void __init prom_init_cmdline(void);
extern char *prom_getenv(char *envname);
/* When we get initrd working someday.........
*/
int my_initrd_start, my_initrd_size;
/* Start arguments and environment.
*/
static char *csb_env[2];
static char *csb_arg[4];
static char *arg1 = "console=ttyS3,38400";
static char *arg2 = "root=/dev/nfs rw ip=any";
static char *env1 = "ethaddr=00:30:23:50:00:00";
const char *get_system_type(void)
{
return "Cogent CSB250";
}
int __init prom_init(int argc, char **argv, char **envp, int *prom_vec)
{
unsigned char *memsize_str;
unsigned long memsize;
/* We use a0 and a1 to pass initrd start and size.
*/
if (((uint) argc > 0) && ((uint)argv > 0)) {
my_initrd_start = (uint)argc;
my_initrd_size = (uint)argv;
}
/* First argv is ignored.
*/
prom_argc = 3;
prom_argv = csb_arg;
prom_envp = csb_env;
csb_arg[1] = arg1;
csb_arg[2] = arg2;
csb_env[0] = env1;
mips_machgroup = MACH_GROUP_ALCHEMY;
mips_machtype = MACH_CSB250;
prom_init_cmdline();
memsize_str = prom_getenv("memsize");
if (!memsize_str) {
memsize = 0x02000000;
} else {
memsize = simple_strtol(memsize_str, NULL, 0);
}
add_memory_region(0, memsize, BOOT_MEM_RAM);
return 0;
}
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