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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)
*/
/*
* bootup setup stuff..
*/
#include <linux/config.h>
#include <linux/module.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 <linux/console.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/cache.h>
#if defined(CONFIG_SOUND) || defined(CONFIG_SOUND_MODULE)
#include <../drivers/sound/sound_config.h>
#include <../drivers/sound/dev_table.h>
#endif
/* for the mac fs */
kdev_t boot_dev;
/* used in nasty hack for sound - see prep_setup_arch() -- Cort */
long ppc_cs4232_dma, ppc_cs4232_dma2;
unsigned long empty_zero_page[1024];
extern PTE *Hash, *Hash_end;
extern unsigned long Hash_size, Hash_mask;
extern int probingmem;
extern unsigned long loops_per_sec;
extern unsigned char aux_device_present;
#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
__prep
int
prep_get_cpuinfo(char *buffer)
{
extern char *Motherboard_map_name;
int len, i;
#ifdef __SMP__
#define CD(X) (cpu_data[n].X)
#else
#define CD(X) (X)
#endif
len = sprintf(buffer,"machine\t\t: PReP %s\n",Motherboard_map_name);
switch ( _prep_type )
{
case _PREP_IBM:
if ((*(unsigned char *)0x8000080c) & (1<<6))
len += sprintf(buffer+len,"Upgrade CPU\n");
len += sprintf(buffer+len,"L2\t\t: ");
if ((*(unsigned char *)0x8000080c) & (1<<7))
{
len += sprintf(buffer+len,"not present\n");
goto no_l2;
}
len += sprintf(buffer+len,"%sKb,",
(((*(unsigned char *)0x8000080d)>>2)&1)?"512":"256");
len += sprintf(buffer+len,"%sync\n",
((*(unsigned char *)0x8000080d)>>7) ? "":"a");
break;
case _PREP_Motorola:
len += sprintf(buffer+len,"L2\t\t: ");
switch(*((unsigned char *)CACHECRBA) & L2CACHE_MASK)
{
case L2CACHE_512KB:
len += sprintf(buffer+len,"512Kb");
break;
case L2CACHE_256KB:
len += sprintf(buffer+len,"256Kb");
break;
case L2CACHE_1MB:
len += sprintf(buffer+len,"1MB");
break;
case L2CACHE_NONE:
len += sprintf(buffer+len,"none\n");
goto no_l2;
break;
default:
len += sprintf(buffer+len, "%x\n",
*((unsigned char *)CACHECRBA));
}
len += sprintf(buffer+len,",parity %s",
(*((unsigned char *)CACHECRBA) & L2CACHE_PARITY) ?
"enabled" : "disabled");
len += sprintf(buffer+len, " SRAM:");
switch ( ((*((unsigned char *)CACHECRBA) & 0xf0) >> 4) & ~(0x3) )
{
case 1: len += sprintf(buffer+len,
"synchronous,parity,flow-through\n");
break;
case 2: len += sprintf(buffer+len,"asynchronous,no parity\n");
break;
case 3: len += sprintf(buffer+len,"asynchronous,parity\n");
break;
default:len += sprintf(buffer+len,
"synchronous,pipelined,no parity\n");
break;
}
break;
}
no_l2:
if ( res->ResidualLength == 0 )
return len;
/* print info about SIMMs */
len += sprintf(buffer+len,"simms\t\t: ");
for ( i = 0 ; (res->ActualNumMemories) && (i < MAX_MEMS) ; i++ )
{
if ( res->Memories[i].SIMMSize != 0 )
len += sprintf(buffer+len,"%d:%ldM ",i,
(res->Memories[i].SIMMSize > 1024) ?
res->Memories[i].SIMMSize>>20 :
res->Memories[i].SIMMSize);
}
len += sprintf(buffer+len,"\n");
return len;
}
__initfunc(void
prep_setup_arch(unsigned long * memory_start_p, unsigned long * memory_end_p))
{
extern char cmd_line[];
unsigned char reg;
/* init to some ~sane value until calibrate_delay() runs */
loops_per_sec = 50000000;
aux_device_present = 0xaa;
/* Set up floppy in PS/2 mode */
outb(0x09, SIO_CONFIG_RA);
reg = inb(SIO_CONFIG_RD);
reg = (reg & 0x3F) | 0x40;
outb(reg, SIO_CONFIG_RD);
outb(reg, SIO_CONFIG_RD); /* Have to write twice to change! */
/* we should determine this according to what we find! -- Cort */
switch ( _prep_type )
{
case _PREP_IBM:
ROOT_DEV = to_kdev_t(0x0301); /* hda1 */
break;
case _PREP_Motorola:
ROOT_DEV = to_kdev_t(0x0801); /* sda1 */
break;
}
/* Enable L2. Assume we don't need to flush -- Cort*/
*(unsigned char *)(0x8000081c) = *(unsigned char *)(0x8000081c)|3;
/* make the serial port the console */
/* strcat(cmd_line,"console=ttyS0,9600n8"); */
/* use the normal console but send output to the serial port, too */
/*strcat(cmd_line,"console=tty0 console=ttyS0,9600n8");*/
sprintf(cmd_line,"%s console=tty0 console=ttyS0,9600n8", cmd_line);
printk("Boot arguments: %s\n", cmd_line);
#ifdef CONFIG_SOUND_CS4232
/*
* setup proper values for the cs4232 driver so we don't have
* to recompile for the motorola or ibm workstations sound systems.
* This is a really nasty hack, but unless we change the driver
* it's the only way to support both addrs from one binary.
* -- Cort
*/
if ( is_prep )
{
extern struct card_info snd_installed_cards[];
struct card_info *snd_ptr;
for ( snd_ptr = snd_installed_cards;
snd_ptr < &snd_installed_cards[num_sound_cards];
snd_ptr++ )
{
if ( snd_ptr->card_type == SNDCARD_CS4232 )
{
if ( _prep_type == _PREP_Motorola )
{
snd_ptr->config.io_base = 0x830;
snd_ptr->config.irq = 10;
snd_ptr->config.dma = ppc_cs4232_dma = 6;
snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
}
if ( _prep_type == _PREP_IBM )
{
snd_ptr->config.io_base = 0x530;
snd_ptr->config.irq = 5;
snd_ptr->config.dma = ppc_cs4232_dma = 1;
/* this is wrong - but leave it for now */
snd_ptr->config.dma2 = ppc_cs4232_dma2 = 7;
}
}
}
}
#endif /* CONFIG_SOUND_CS4232 */
/*print_residual_device_info();*/
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");
#ifdef CONFIG_VGA_CONSOLE
conswitchp = &vga_con;
#endif
}
__initfunc(void prep_ide_init_hwif_ports (ide_ioreg_t *p, ide_ioreg_t base, int *irq))
{
ide_ioreg_t port = base;
int i = 8;
while (i--)
*p++ = port++;
*p++ = base + 0x206;
if (irq != NULL)
*irq = 0;
}
#ifdef CONFIG_SOUND_MODULE
EXPORT_SYMBOL(ppc_cs4232_dma);
EXPORT_SYMBOL(ppc_cs4232_dma2);
#endif
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