]>
git.ipfire.org Git - people/ms/u-boot.git/blob - lib/addr_map.c
2 * Copyright 2008 Freescale Semiconductor, Inc.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * Version 2 as published by the Free Software Foundation.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 } address_map
[CONFIG_SYS_NUM_ADDR_MAP
];
28 phys_addr_t
addrmap_virt_to_phys(void * vaddr
)
32 for (i
= 0; i
< CONFIG_SYS_NUM_ADDR_MAP
; i
++) {
33 u64 base
, upper
, addr
;
35 if (address_map
[i
].size
== 0)
38 addr
= (u64
)((u32
)vaddr
);
39 base
= (u64
)(address_map
[i
].vaddr
);
40 upper
= (u64
)(address_map
[i
].size
) + base
- 1;
42 if (addr
>= base
&& addr
<= upper
) {
43 return addr
- address_map
[i
].vaddr
+ address_map
[i
].paddr
;
47 return (phys_addr_t
)(~0);
50 void *addrmap_phys_to_virt(phys_addr_t paddr
)
54 for (i
= 0; i
< CONFIG_SYS_NUM_ADDR_MAP
; i
++) {
55 phys_addr_t base
, upper
;
57 if (address_map
[i
].size
== 0)
60 base
= address_map
[i
].paddr
;
61 upper
= address_map
[i
].size
+ base
- 1;
63 if (paddr
>= base
&& paddr
<= upper
) {
66 offset
= address_map
[i
].paddr
- address_map
[i
].vaddr
;
68 return (void *)(unsigned long)(paddr
- offset
);
75 void addrmap_set_entry(unsigned long vaddr
, phys_addr_t paddr
,
76 phys_size_t size
, int idx
)
78 if (idx
> CONFIG_SYS_NUM_ADDR_MAP
)
81 address_map
[idx
].vaddr
= vaddr
;
82 address_map
[idx
].paddr
= paddr
;
83 address_map
[idx
].size
= size
;