Add support for DDB5477.

1 files changed, 58 insertions, 0 deletions

diff --git a/arch/mips/ddb5xxx/common/prom.c b/arch/mips/ddb5xxx/common/prom.c
new file mode 100644
index 000000000..9333b5278
--- /dev/null
+++ b/arch/mips/ddb5xxx/common/prom.c
@@ -0,0 +1,58 @@
+/***********************************************************************
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * arch/mips/ddb5xxx/common/prom.c
+ *     prom.c file.
+ *
+ * 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/config.h>
+#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/ddb5xxx/ddb5xxx.h>
+
+char arcs_cmdline[COMMAND_LINE_SIZE];
+
+/* [jsun@junsun.net] PMON passes arguments in C main() style */
+void __init prom_init(int argc, const char **arg)
+{
+	int i;
+
+	/* 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_NEC_DDB;
+
+#if defined(CONFIG_DDB5074)
+	mips_machtype = MACH_NEC_DDB5074;
+#elif defined(CONFIG_DDB5476)
+	mips_machtype = MACH_NEC_DDB5476;
+#elif defined(CONFIG_DDB5477)
+	mips_machtype = MACH_NEC_DDB5477;
+#endif
+
+	add_memory_region(0, DDB_SDRAM_SIZE, BOOT_MEM_RAM);
+}
+
+void __init prom_free_prom_memory(void)
+{
+}