2 * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2007 Eugene Konev <ejka@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 #include <linux/bootmem.h>
20 #include <linux/init.h>
22 #include <linux/module.h>
23 #include <linux/pfn.h>
24 #include <linux/proc_fs.h>
25 #include <linux/string.h>
26 #include <linux/swap.h>
28 #include <asm/bootinfo.h>
30 #include <asm/sections.h>
32 #include <asm/mach-ar7/ar7.h>
33 #include <asm/mips-boards/prom.h>
35 static int __init
memsize(void)
37 u32 size
= (64 << 20);
38 u32
*addr
= (u32
*)KSEG1ADDR(AR7_SDRAM_BASE
+ size
- 4);
39 u32
*kernel_end
= (u32
*)KSEG1ADDR(CPHYSADDR((u32
)&_end
));
42 while (tmpaddr
> kernel_end
) {
43 *tmpaddr
= (u32
)tmpaddr
;
50 if (*tmpaddr
!= (u32
)tmpaddr
)
53 } while (size
< (64 << 20));
55 writel((u32
)tmpaddr
, &addr
);
60 void __init
prom_meminit(void)
64 pages
= memsize() >> PAGE_SHIFT
;
65 add_memory_region(PHYS_OFFSET
, pages
<< PAGE_SHIFT
, BOOT_MEM_RAM
);
68 void __init
prom_free_prom_memory(void)
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