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/*
* linux/arch/ppc/kernel/setup.c
*
* Copyright (C) 1995 Linus Torvalds
* Adapted from 'alpha' version by Gary Thomas
* Modified by Cort Dougan (cort@cs.nmt.edu)
* Modified for MBX using prep/chrp/pmac functions by Dan (dmalek@jlc.net)
*/
/*
* bootup setup stuff..
*/
#include <linux/config.h>
#include <linux/errno.h>
#include <linux/sched.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/stddef.h>
#include <linux/unistd.h>
#include <linux/ptrace.h>
#include <linux/malloc.h>
#include <linux/user.h>
#include <linux/a.out.h>
#include <linux/tty.h>
#include <linux/major.h>
#include <linux/interrupt.h>
#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/blk.h>
#include <linux/ioport.h>
#include <asm/mmu.h>
#include <asm/processor.h>
#include <asm/residual.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/ide.h>
#include <asm/mbx.h>
extern unsigned long loops_per_sec;
unsigned long empty_zero_page[1024];
#ifdef CONFIG_BLK_DEV_RAM
extern int rd_doload; /* 1 = load ramdisk, 0 = don't load */
extern int rd_prompt; /* 1 = prompt for ramdisk, 0 = don't prompt */
extern int rd_image_start; /* starting block # of image */
#endif
extern char saved_command_line[256];
extern unsigned long find_available_memory(void);
extern void mbx_cpm_reset(uint);
void mbx_ide_init_hwif_ports(ide_ioreg_t *p, ide_ioreg_t base, int *irq)
{
*p = 0;
*irq = 0;
if (base != 0) /* Only map the first ATA flash drive */
return;
#ifdef ATA_FLASH
base = (unsigned long) ioremap(PCMCIA_MEM_ADDR, 0x200);
for (i = 0; i < 8; ++i)
*p++ = base++;
*p = ++base; /* Does not matter */
if (irq)
*irq = 13;
#endif
}
__initfunc(void
mbx_setup_arch(unsigned long * memory_start_p, unsigned long * memory_end_p))
{
int cpm_page;
extern char cmd_line[];
cpm_page = *memory_start_p;
*memory_start_p += PAGE_SIZE;
sprintf(cmd_line,
"%s root=/dev/nfs nfsroot=/sys/mbxroot",
cmd_line);
printk("Boot arguments: %s\n", cmd_line);
/* Reset the Communication Processor Module.
*/
mbx_cpm_reset(cpm_page);
#ifdef notdef
ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
#endif
#ifdef CONFIG_BLK_DEV_INITRD
#if 0
ROOT_DEV = to_kdev_t(0x0200); /* floppy */
rd_prompt = 1;
rd_doload = 1;
rd_image_start = 0;
#endif
/* initrd_start and size are setup by boot/head.S and kernel/head.S */
if ( initrd_start )
{
if (initrd_end > *memory_end_p)
{
printk("initrd extends beyond end of memory "
"(0x%08lx > 0x%08lx)\ndisabling initrd\n",
initrd_end,*memory_end_p);
initrd_start = 0;
}
}
#endif
#ifdef notdef
request_region(0x20,0x20,"pic1");
request_region(0xa0,0x20,"pic2");
request_region(0x00,0x20,"dma1");
request_region(0x40,0x20,"timer");
request_region(0x80,0x10,"dma page reg");
request_region(0xc0,0x20,"dma2");
#endif
}
void
abort(void)
{
#ifdef CONFIG_XMON
extern void xmon(void *);
xmon(0);
#endif
machine_restart(NULL);
}
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