1 files changed, 54 insertions, 0 deletions

diff --git a/arch/mips/lantiq/xway/prom-xway.c b/arch/mips/lantiq/xway/prom-xway.c
new file mode 100644
index 000000000000..1686692ac24d
--- /dev/null
+++ b/arch/mips/lantiq/xway/prom-xway.c
@@ -0,0 +1,54 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2010 John Crispin <blogic@openwrt.org>
+ */
+
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <asm/bootinfo.h>
+#include <asm/time.h>
+
+#include <lantiq_soc.h>
+
+#include "../prom.h"
+
+#define SOC_DANUBE      "Danube"
+#define SOC_TWINPASS    "Twinpass"
+#define SOC_AR9         "AR9"
+
+#define PART_SHIFT      12
+#define PART_MASK       0x0FFFFFFF
+#define REV_SHIFT       28
+#define REV_MASK        0xF0000000
+
+void __init ltq_soc_detect(struct ltq_soc_info *i)
+{
+        i->partnum = (ltq_r32(LTQ_MPS_CHIPID) & PART_MASK) >> PART_SHIFT;
+        i->rev = (ltq_r32(LTQ_MPS_CHIPID) & REV_MASK) >> REV_SHIFT;
+        switch (i->partnum) {
+        case SOC_ID_DANUBE1:
+        case SOC_ID_DANUBE2:
+                i->name = SOC_DANUBE;
+                i->type = SOC_TYPE_DANUBE;
+                break;
+
+        case SOC_ID_TWINPASS:
+                i->name = SOC_TWINPASS;
+                i->type = SOC_TYPE_DANUBE;
+                break;
+
+        case SOC_ID_ARX188:
+        case SOC_ID_ARX168:
+        case SOC_ID_ARX182:
+                i->name = SOC_AR9;
+                i->type = SOC_TYPE_AR9;
+                break;
+
+        default:
+                unreachable();
+                break;
+        }
+}