1 files changed, 62 insertions, 0 deletions
diff --git a/arch/mips/loongson2ef/common/machtype.c b/arch/mips/loongson2ef/common/machtype.c
new file mode 100644
index 000000000000..82f6de49f20f
--- /dev/null
+++ b/arch/mips/loongson2ef/common/machtype.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin, wuzhangjin@gmail.com
+ *
+ * Copyright (c) 2009 Zhang Le <r0bertz@gentoo.org>
+ */
+#include <linux/errno.h>
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+#include <machine.h>
+
+/* please ensure the length of the machtype string is less than 50 */
+#define MACHTYPE_LEN 50
+
+static const char *system_types[] = {
+	[MACH_LOONGSON_UNKNOWN]	= "unknown loongson machine",
+	[MACH_LEMOTE_FL2E]	= "lemote-fuloong-2e-box",
+	[MACH_LEMOTE_FL2F]	= "lemote-fuloong-2f-box",
+	[MACH_LEMOTE_ML2F7]	= "lemote-mengloong-2f-7inches",
+	[MACH_LEMOTE_YL2F89]	= "lemote-yeeloong-2f-8.9inches",
+	[MACH_DEXXON_GDIUM2F10]	= "dexxon-gdium-2f",
+	[MACH_LEMOTE_NAS]	= "lemote-nas-2f",
+	[MACH_LEMOTE_LL2F]	= "lemote-lynloong-2f",
+	[MACH_LOONGSON_END]	= NULL,
+};
+
+const char *get_system_type(void)
+{
+	return system_types[mips_machtype];
+}
+
+void __weak __init mach_prom_init_machtype(void)
+{
+}
+
+void __init prom_init_machtype(void)
+{
+	char *p, str[MACHTYPE_LEN + 1];
+	int machtype = MACH_LEMOTE_FL2E;
+
+	mips_machtype = LOONGSON_MACHTYPE;
+
+	p = strstr(arcs_cmdline, "machtype=");
+	if (!p) {
+		mach_prom_init_machtype();
+		return;
+	}
+	p += strlen("machtype=");
+	strncpy(str, p, MACHTYPE_LEN);
+	str[MACHTYPE_LEN] = '\0';
+	p = strstr(str, " ");
+	if (p)
+		*p = '\0';
+
+	for (; system_types[machtype]; machtype++)
+		if (strstr(system_types[machtype], str)) {
+			mips_machtype = machtype;
+			break;
+		}
+}