1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 * Copyright (C) 2014 Imagination Technologies Ltd.
 7 */
 8
 9#ifndef _ASM_MALTA_SPACES_H
10#define _ASM_MALTA_SPACES_H
11
12#ifdef CONFIG_EVA
13
14/*
15 * Traditional Malta Board Memory Map for EVA
16 *
17 * 0x00000000 - 0x0fffffff: 1st RAM region, 256MB
18 * 0x10000000 - 0x1bffffff: GIC and CPC Control Registers
19 * 0x1c000000 - 0x1fffffff: I/O And Flash
20 * 0x20000000 - 0x7fffffff: 2nd RAM region, 1.5GB
21 * 0x80000000 - 0xffffffff: Physical memory aliases to 0x0 (2GB)
22 *
23 * The kernel is still located in 0x80000000(kseg0). However,
24 * the physical mask has been shifted to 0x80000000 which exploits the alias
25 * on the Malta board. As a result of which, we override the __pa_symbol
26 * to perform direct mapping from virtual to physical addresses. In other
27 * words, the 0x80000000 virtual address maps to 0x80000000 physical address
28 * which in turn aliases to 0x0. We do this in order to be able to use a flat
29 * 2GB of memory (0x80000000 - 0xffffffff) so we can avoid the I/O hole in
30 * 0x10000000 - 0x1fffffff.
31 * The last 64KB of physical memory are reserved for correct HIGHMEM
32 * macros arithmetic.
33 *
34 */
35
36#define PAGE_OFFSET	_AC(0x0, UL)
37#define PHYS_OFFSET	_AC(0x80000000, UL)
38#define HIGHMEM_START	_AC(0xffff0000, UL)
39
40#define __pa_symbol(x)	(RELOC_HIDE((unsigned long)(x), 0))
41
42#endif /* CONFIG_EVA */
43
44#include <asm/mach-generic/spaces.h>
45
46#endif /* _ASM_MALTA_SPACES_H */

 1/*
 2 * This file is subject to the terms and conditions of the GNU General Public
 3 * License.  See the file "COPYING" in the main directory of this archive
 4 * for more details.
 5 *
 6 * Copyright (C) 2014 Imagination Technologies Ltd.
 7 */
 8
 9#ifndef _ASM_MALTA_SPACES_H
10#define _ASM_MALTA_SPACES_H
11
12#ifdef CONFIG_EVA
13
14/*
15 * Traditional Malta Board Memory Map for EVA
16 *
17 * 0x00000000 - 0x0fffffff: 1st RAM region, 256MB
18 * 0x10000000 - 0x1bffffff: GIC and CPC Control Registers
19 * 0x1c000000 - 0x1fffffff: I/O And Flash
20 * 0x20000000 - 0x7fffffff: 2nd RAM region, 1.5GB
21 * 0x80000000 - 0xffffffff: Physical memory aliases to 0x0 (2GB)
22 *
23 * The kernel is still located in 0x80000000(kseg0). However,
24 * the physical mask has been shifted to 0x80000000 which exploits the alias
25 * on the Malta board. As a result of which, we override the __pa_symbol
26 * to peform direct mapping from virtual to physical addresses. In other
27 * words, the 0x80000000 virtual address maps to 0x80000000 physical address
28 * which in turn aliases to 0x0. We do this in order to be able to use a flat
29 * 2GB of memory (0x80000000 - 0xffffffff) so we can avoid the I/O hole in
30 * 0x10000000 - 0x1fffffff.
31 * The last 64KB of physical memory are reserved for correct HIGHMEM
32 * macros arithmetics.
33 *
34 */
35
36#define PAGE_OFFSET	_AC(0x0, UL)
37#define PHYS_OFFSET	_AC(0x80000000, UL)
38#define HIGHMEM_START	_AC(0xffff0000, UL)
39
40#define __pa_symbol(x)	(RELOC_HIDE((unsigned long)(x), 0))
41
42#endif /* CONFIG_EVA */
43
44#include <asm/mach-generic/spaces.h>
45
46#endif /* _ASM_MALTA_SPACES_H */