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// SPDX-License-Identifier: GPL-2.0
/*
* ip22-setup.c: SGI specific setup, including init of the feature struct.
*
* Copyright (C) 1996 David S. Miller (davem@davemloft.net)
* Copyright (C) 1997, 1998 Ralf Baechle (ralf@gnu.org)
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/kdev_t.h>
#include <linux/types.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/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>
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] __initdata;
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);
}
}
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