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/*
* 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 program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright 2007 John Crispin <blogic@openwrt.org>
*/
#include <linux/init.h>
#include <linux/string.h>
#include <linux/ctype.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/ioport.h>
#include <asm/bootinfo.h>
#include <asm/amazon/amazon.h>
#include <asm/amazon/irq.h>
#include <asm/amazon/model.h>
#include <asm/cpu.h>
void prom_putchar(char c)
{
/* Wait for FIFO to empty */
while ((amazon_readl(AMAZON_ASC_FSTAT) >> 8) != 0x00) ;
/* Crude cr/nl handling is better than none */
if(c == '\n')
amazon_writel('\r', AMAZON_ASC_TBUF);
amazon_writel(c, AMAZON_ASC_TBUF);
}
void __init prom_init(void)
{
char **envp = (char **) fw_arg2;
int memsize = 16; /* assume 16M as default */
envp = (char **)KSEG1ADDR((unsigned long)envp);
while (*envp) {
char *e = (char *)KSEG1ADDR(*envp);
if (!strncmp(e, "memsize=", 8)) {
e += 8;
memsize = simple_strtoul(e, NULL, 10);
}
envp++;
}
memsize *= 1024 * 1024;
strcpy(&(arcs_cmdline[0]), "console=ttyS0,115200 rootfstype=squashfs,jffs2");
add_memory_region(0x00000000, memsize, BOOT_MEM_RAM);
}
void prom_free_prom_memory(void)
{
}
const char *get_system_type(void)
{
return BOARD_SYSTEM_TYPE;
}
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