1 files changed, 78 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 000000000..b69daa024
--- /dev/null
+++ b/arch/mips/sgi-ip22/ip22-setup.c
@@ -0,0 +1,78 @@
+// 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);
+        }
+}