1 files changed, 73 insertions, 0 deletions

diff --git a/arch/mips/gt64120/momenco_ocelot/prom.c b/arch/mips/gt64120/momenco_ocelot/prom.c
new file mode 100644
index 000000000000..8677b6d3ada7
--- /dev/null
+++ b/arch/mips/gt64120/momenco_ocelot/prom.c
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+#include <linux/init.h>
+#include <linux/mm.h>
+#include <linux/sched.h>
+#include <linux/bootmem.h>
+
+#include <asm/addrspace.h>
+#include <asm/bootinfo.h>
+#include <asm/pmon.h>
+
+struct callvectors* debug_vectors;
+
+extern unsigned long gt64120_base;
+
+const char *get_system_type(void)
+{
+        return "Momentum Ocelot";
+}
+
+/* [jsun@junsun.net] PMON passes arguments in C main() style */
+void __init prom_init(void)
+{
+        int argc = fw_arg0;
+        char **arg = (char **) fw_arg1;
+        char **env = (char **) fw_arg2;
+        struct callvectors *cv = (struct callvectors *) fw_arg3;
+        uint32_t tmp;
+        int i;
+
+        /* save the PROM vectors for debugging use */
+        debug_vectors = cv;
+
+        /* arg[0] is "g", the rest is boot parameters */
+        arcs_cmdline[0] = '\0';
+        for (i = 1; i < argc; i++) {
+                if (strlen(arcs_cmdline) + strlen(arg[i] + 1)
+                    >= sizeof(arcs_cmdline))
+                        break;
+                strcat(arcs_cmdline, arg[i]);
+                strcat(arcs_cmdline, " ");
+        }
+
+        mips_machgroup = MACH_GROUP_MOMENCO;
+        mips_machtype = MACH_MOMENCO_OCELOT;
+
+        while (*env) {
+                if (strncmp("gtbase", *env, 6) == 0) {
+                        gt64120_base = simple_strtol(*env + strlen("gtbase="),
+                                                        NULL, 16);
+                        break;
+                }
+                *env++;
+        }
+
+        debug_vectors->printf("Booting Linux kernel...\n");
+
+        /* All the boards have at least 64MiB. If there's more, we
+           detect and register it later */
+        add_memory_region(0, 64 << 20, BOOT_MEM_RAM);
+}
+
+unsigned long __init prom_free_prom_memory(void)
+{
+        return 0;
+}