4b550488f8
Hard to follow who is pointing what to where and why so it's simply getting in the way of the time code renovation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/*
|
|
* ip22-setup.c: SGI specific setup, including init of the feature struct.
|
|
*
|
|
* Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
|
|
* Copyright (C) 1997, 1998 Ralf Baechle (ralf@gnu.org)
|
|
*/
|
|
#include <linux/ds1286.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/kdev_t.h>
|
|
#include <linux/types.h>
|
|
#include <linux/module.h>
|
|
#include <linux/console.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/tty.h>
|
|
|
|
#include <asm/addrspace.h>
|
|
#include <asm/bcache.h>
|
|
#include <asm/bootinfo.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/reboot.h>
|
|
#include <asm/time.h>
|
|
#include <asm/gdb-stub.h>
|
|
#include <asm/io.h>
|
|
#include <asm/traps.h>
|
|
#include <asm/sgialib.h>
|
|
#include <asm/sgi/mc.h>
|
|
#include <asm/sgi/hpc3.h>
|
|
#include <asm/sgi/ip22.h>
|
|
|
|
unsigned long sgi_gfxaddr;
|
|
EXPORT_SYMBOL_GPL(sgi_gfxaddr);
|
|
|
|
/*
|
|
* Stop-A is originally a Sun thing that isn't standard on IP22 so to avoid
|
|
* accidents it's disabled by default on IP22.
|
|
*
|
|
* FIXME: provide a mechanism to change the value of stop_a_enabled.
|
|
*/
|
|
int stop_a_enabled;
|
|
|
|
void ip22_do_break(void)
|
|
{
|
|
if (!stop_a_enabled)
|
|
return;
|
|
|
|
printk("\n");
|
|
ArcEnterInteractiveMode();
|
|
}
|
|
|
|
EXPORT_SYMBOL(ip22_do_break);
|
|
|
|
extern void ip22_be_init(void) __init;
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
char *ctype;
|
|
char *cserial;
|
|
|
|
board_be_init = ip22_be_init;
|
|
|
|
/* Init the INDY HPC I/O controller. Need to call this before
|
|
* fucking with the memory controller because it needs to know the
|
|
* boardID and whether this is a Guiness or a FullHouse machine.
|
|
*/
|
|
sgihpc_init();
|
|
|
|
/* Init INDY memory controller. */
|
|
sgimc_init();
|
|
|
|
#ifdef CONFIG_BOARD_SCACHE
|
|
/* Now enable boardcaches, if any. */
|
|
indy_sc_init();
|
|
#endif
|
|
|
|
/* Set EISA IO port base for Indigo2
|
|
* ioremap cannot fail */
|
|
set_io_port_base((unsigned long)ioremap(0x00080000,
|
|
0x1fffffff - 0x00080000));
|
|
/* ARCS console environment variable is set to "g?" for
|
|
* graphics console, it is set to "d" for the first serial
|
|
* line and "d2" for the second serial line.
|
|
*
|
|
* Need to check if the case is 'g' but no keyboard:
|
|
* (ConsoleIn/Out = serial)
|
|
*/
|
|
ctype = ArcGetEnvironmentVariable("console");
|
|
cserial = ArcGetEnvironmentVariable("ConsoleOut");
|
|
|
|
if ((ctype && *ctype == 'd') || (cserial && *cserial == 's')) {
|
|
static char options[8];
|
|
char *baud = ArcGetEnvironmentVariable("dbaud");
|
|
if (baud)
|
|
strcpy(options, baud);
|
|
add_preferred_console("ttyS", *(ctype + 1) == '2' ? 1 : 0,
|
|
baud ? options : NULL);
|
|
} else if (!ctype || *ctype != 'g') {
|
|
/* Use ARC if we don't want serial ('d') or graphics ('g'). */
|
|
prom_flags |= PROM_FLAG_USE_AS_CONSOLE;
|
|
add_preferred_console("arc", 0, NULL);
|
|
}
|
|
|
|
#ifdef CONFIG_KGDB
|
|
{
|
|
char *kgdb_ttyd = prom_getcmdline();
|
|
|
|
if ((kgdb_ttyd = strstr(kgdb_ttyd, "kgdb=ttyd")) != NULL) {
|
|
int line;
|
|
kgdb_ttyd += strlen("kgdb=ttyd");
|
|
if (*kgdb_ttyd != '1' && *kgdb_ttyd != '2')
|
|
printk(KERN_INFO "KGDB: Uknown serial line /dev/ttyd%c"
|
|
", falling back to /dev/ttyd1\n", *kgdb_ttyd);
|
|
line = *kgdb_ttyd == '2' ? 0 : 1;
|
|
printk(KERN_INFO "KGDB: Using serial line /dev/ttyd%d for "
|
|
"session\n", line ? 1 : 2);
|
|
rs_kgdb_hook(line);
|
|
|
|
printk(KERN_INFO "KGDB: Using serial line /dev/ttyd%d for "
|
|
"session, please connect your debugger\n", line ? 1:2);
|
|
|
|
kgdb_enabled = 1;
|
|
/* Breakpoints and stuff are in sgi_irq_setup() */
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(CONFIG_VT) && defined(CONFIG_SGI_NEWPORT_CONSOLE)
|
|
{
|
|
ULONG *gfxinfo;
|
|
ULONG * (*__vec)(void) = (void *) (long)
|
|
*((_PULONG *)(long)((PROMBLOCK)->pvector + 0x20));
|
|
|
|
gfxinfo = __vec();
|
|
sgi_gfxaddr = ((gfxinfo[1] >= 0xa0000000
|
|
&& gfxinfo[1] <= 0xc0000000)
|
|
? gfxinfo[1] - 0xa0000000 : 0);
|
|
|
|
/* newport addresses? */
|
|
if (sgi_gfxaddr == 0x1f0f0000 || sgi_gfxaddr == 0x1f4f0000) {
|
|
conswitchp = &newport_con;
|
|
}
|
|
}
|
|
#endif
|
|
}
|