Merge branch 'wip-2.6.34' into old-private-masterarchived-private-master

1 files changed, 45 insertions, 0 deletions

diff --git a/arch/mips/loongson/common/uart_base.c b/arch/mips/loongson/common/uart_base.c
new file mode 100644
index 000000000000..d69ea54bc3d1
--- /dev/null
+++ b/arch/mips/loongson/common/uart_base.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2009 Lemote Inc.
+ * Author: Wu Zhangjin, wuzhangjin@gmail.com
+ *
+ * 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/module.h>
+#include <asm/bootinfo.h>
+
+#include <loongson.h>
+
+/* ioremapped */
+unsigned long _loongson_uart_base;
+EXPORT_SYMBOL(_loongson_uart_base);
+/* raw */
+unsigned long loongson_uart_base;
+EXPORT_SYMBOL(loongson_uart_base);
+
+void prom_init_loongson_uart_base(void)
+{
+        switch (mips_machtype) {
+        case MACH_LEMOTE_FL2E:
+                loongson_uart_base = LOONGSON_PCIIO_BASE + 0x3f8;
+                break;
+        case MACH_LEMOTE_FL2F:
+        case MACH_LEMOTE_LL2F:
+                loongson_uart_base = LOONGSON_PCIIO_BASE + 0x2f8;
+                break;
+        case MACH_LEMOTE_ML2F7:
+        case MACH_LEMOTE_YL2F89:
+        case MACH_DEXXON_GDIUM2F10:
+        case MACH_LEMOTE_NAS:
+        default:
+                /* The CPU provided serial port */
+                loongson_uart_base = LOONGSON_LIO1_BASE + 0x3f8;
+                break;
+        }
+
+        _loongson_uart_base =
+                (unsigned long)ioremap_nocache(loongson_uart_base, 8);
+}