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_LOONGSON64_MEM_H 8 #define __ASM_MACH_LOONGSON64_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_LOONGSON64_MEM_H */