1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * Copyright (C) 2009 Lemote, Inc.
4  * Author: Wu Zhangjin <wuzhangjin@gmail.com>
5  */
6 
7 #ifndef __ASM_MACH_LOONGSON2EF_MEM_H
8 #define __ASM_MACH_LOONGSON2EF_MEM_H
9 
10 /*
11  * high memory space
12  *
13  * in loongson2e, starts from 512M
14  * in loongson2f, starts from 2G 256M
15  */
16 #ifdef CONFIG_CPU_LOONGSON2E
17 #define LOONGSON_HIGHMEM_START	0x20000000
18 #else
19 #define LOONGSON_HIGHMEM_START	0x90000000
20 #endif
21 
22 /*
23  * the peripheral registers(MMIO):
24  *
25  * On the Lemote Loongson 2e system, reside between 0x1000:0000 and 0x2000:0000.
26  * On the Lemote Loongson 2f system, reside between 0x1000:0000 and 0x8000:0000.
27  */
28 
29 #define LOONGSON_MMIO_MEM_START 0x10000000
30 
31 #ifdef CONFIG_CPU_LOONGSON2E
32 #define LOONGSON_MMIO_MEM_END	0x20000000
33 #else
34 #define LOONGSON_MMIO_MEM_END	0x80000000
35 #endif
36 
37 #endif /* __ASM_MACH_LOONGSON2EF_MEM_H */
38