blob: 5e6621349471daf28b2c65eeff0941257d69df59 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * ip22-setup.c: SGI specific setup, including init of the feature struct.
3 *
Justin P. Mattock79add622011-04-04 14:15:29 -07004 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 * Copyright (C) 1997, 1998 Ralf Baechle (ralf@gnu.org)
6 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07007#include <linux/init.h>
8#include <linux/kernel.h>
9#include <linux/kdev_t.h>
10#include <linux/types.h>
11#include <linux/module.h>
12#include <linux/console.h>
13#include <linux/sched.h>
14#include <linux/tty.h>
15
16#include <asm/addrspace.h>
17#include <asm/bcache.h>
18#include <asm/bootinfo.h>
19#include <asm/irq.h>
20#include <asm/reboot.h>
21#include <asm/time.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022#include <asm/io.h>
23#include <asm/traps.h>
24#include <asm/sgialib.h>
25#include <asm/sgi/mc.h>
26#include <asm/sgi/hpc3.h>
27#include <asm/sgi/ip22.h>
28
29unsigned long sgi_gfxaddr;
Ralf Baechle88eb4132007-08-22 16:29:56 +010030EXPORT_SYMBOL_GPL(sgi_gfxaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -070031
Linus Torvalds1da177e2005-04-16 15:20:36 -070032extern void ip22_be_init(void) __init;
Linus Torvalds1da177e2005-04-16 15:20:36 -070033
Ralf Baechle2925aba2006-06-18 01:32:22 +010034void __init plat_mem_setup(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -070035{
36 char *ctype;
Ralf Baechlee9feeb22006-01-30 17:48:27 +000037 char *cserial;
Linus Torvalds1da177e2005-04-16 15:20:36 -070038
39 board_be_init = ip22_be_init;
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
41 /* Init the INDY HPC I/O controller. Need to call this before
42 * fucking with the memory controller because it needs to know the
43 * boardID and whether this is a Guiness or a FullHouse machine.
44 */
45 sgihpc_init();
46
47 /* Init INDY memory controller. */
48 sgimc_init();
49
50#ifdef CONFIG_BOARD_SCACHE
51 /* Now enable boardcaches, if any. */
52 indy_sc_init();
53#endif
54
55 /* Set EISA IO port base for Indigo2
56 * ioremap cannot fail */
57 set_io_port_base((unsigned long)ioremap(0x00080000,
58 0x1fffffff - 0x00080000));
59 /* ARCS console environment variable is set to "g?" for
60 * graphics console, it is set to "d" for the first serial
61 * line and "d2" for the second serial line.
Ralf Baechlee9feeb22006-01-30 17:48:27 +000062 *
63 * Need to check if the case is 'g' but no keyboard:
64 * (ConsoleIn/Out = serial)
Linus Torvalds1da177e2005-04-16 15:20:36 -070065 */
66 ctype = ArcGetEnvironmentVariable("console");
Ralf Baechlee9feeb22006-01-30 17:48:27 +000067 cserial = ArcGetEnvironmentVariable("ConsoleOut");
68
69 if ((ctype && *ctype == 'd') || (cserial && *cserial == 's')) {
Dmitri Vorobiev599a8942009-11-23 13:53:37 +020070 static char options[8] __initdata;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071 char *baud = ArcGetEnvironmentVariable("dbaud");
72 if (baud)
73 strcpy(options, baud);
74 add_preferred_console("ttyS", *(ctype + 1) == '2' ? 1 : 0,
75 baud ? options : NULL);
76 } else if (!ctype || *ctype != 'g') {
Ralf Baechlee9feeb22006-01-30 17:48:27 +000077 /* Use ARC if we don't want serial ('d') or graphics ('g'). */
Linus Torvalds1da177e2005-04-16 15:20:36 -070078 prom_flags |= PROM_FLAG_USE_AS_CONSOLE;
79 add_preferred_console("arc", 0, NULL);
80 }
81
Linus Torvalds1da177e2005-04-16 15:20:36 -070082#if defined(CONFIG_VT) && defined(CONFIG_SGI_NEWPORT_CONSOLE)
83 {
84 ULONG *gfxinfo;
85 ULONG * (*__vec)(void) = (void *) (long)
86 *((_PULONG *)(long)((PROMBLOCK)->pvector + 0x20));
87
88 gfxinfo = __vec();
89 sgi_gfxaddr = ((gfxinfo[1] >= 0xa0000000
90 && gfxinfo[1] <= 0xc0000000)
91 ? gfxinfo[1] - 0xa0000000 : 0);
92
93 /* newport addresses? */
94 if (sgi_gfxaddr == 0x1f0f0000 || sgi_gfxaddr == 0x1f4f0000) {
95 conswitchp = &newport_con;
96 }
97 }
98#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -070099}