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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/mips/sgi-ip22/ip22-setup.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/mips/sgi-ip22/ip22-setup.c')
-rw-r--r--arch/mips/sgi-ip22/ip22-setup.c144
1 files changed, 144 insertions, 0 deletions
diff --git a/arch/mips/sgi-ip22/ip22-setup.c b/arch/mips/sgi-ip22/ip22-setup.c
new file mode 100644
index 00000000000..0e96a5d6799
--- /dev/null
+++ b/arch/mips/sgi-ip22/ip22-setup.c
@@ -0,0 +1,144 @@
+/*
+ * 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/config.h>
+#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;
+
+/*
+ * 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;
+extern void ip22_time_init(void) __init;
+
+static int __init ip22_setup(void)
+{
+ char *ctype;
+
+ board_be_init = ip22_be_init;
+ ip22_time_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.
+ */
+ ctype = ArcGetEnvironmentVariable("console");
+ if (ctype && *ctype == 'd') {
+ 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 Newport ('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
+
+ return 0;
+}
+
+early_initcall(ip22_setup);