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 000000000000..0e96a5d67993
--- /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);