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 0000000..8677b6d
--- /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;
+}