xref: /OK3568_Linux_fs/kernel/arch/mips/sgi-ip32/ip32-memory.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * This file is subject to the terms and conditions of the GNU General Public
3*4882a593Smuzhiyun  * License.  See the file "COPYING" in the main directory of this archive
4*4882a593Smuzhiyun  * for more details.
5*4882a593Smuzhiyun  *
6*4882a593Smuzhiyun  * Copyright (C) 2003 Keith M Wesolowski
7*4882a593Smuzhiyun  * Copyright (C) 2005 Ilya A. Volynets (Total Knowledge)
8*4882a593Smuzhiyun  */
9*4882a593Smuzhiyun #include <linux/types.h>
10*4882a593Smuzhiyun #include <linux/init.h>
11*4882a593Smuzhiyun #include <linux/kernel.h>
12*4882a593Smuzhiyun #include <linux/memblock.h>
13*4882a593Smuzhiyun #include <linux/mm.h>
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun #include <asm/ip32/crime.h>
16*4882a593Smuzhiyun #include <asm/bootinfo.h>
17*4882a593Smuzhiyun #include <asm/page.h>
18*4882a593Smuzhiyun 
19*4882a593Smuzhiyun extern void crime_init(void);
20*4882a593Smuzhiyun 
prom_meminit(void)21*4882a593Smuzhiyun void __init prom_meminit(void)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun 	u64 base, size;
24*4882a593Smuzhiyun 	int bank;
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun 	crime_init();
27*4882a593Smuzhiyun 
28*4882a593Smuzhiyun 	for (bank=0; bank < CRIME_MAXBANKS; bank++) {
29*4882a593Smuzhiyun 		u64 bankctl = crime->bank_ctrl[bank];
30*4882a593Smuzhiyun 		base = (bankctl & CRIME_MEM_BANK_CONTROL_ADDR) << 25;
31*4882a593Smuzhiyun 		if (bank != 0 && base == 0)
32*4882a593Smuzhiyun 			continue;
33*4882a593Smuzhiyun 		size = (bankctl & CRIME_MEM_BANK_CONTROL_SDRAM_SIZE) ? 128 : 32;
34*4882a593Smuzhiyun 		size <<= 20;
35*4882a593Smuzhiyun 		if (base + size > (256 << 20))
36*4882a593Smuzhiyun 			base += CRIME_HI_MEM_BASE;
37*4882a593Smuzhiyun 
38*4882a593Smuzhiyun 		printk("CRIME MC: bank %u base 0x%016Lx size %LuMiB\n",
39*4882a593Smuzhiyun 			bank, base, size >> 20);
40*4882a593Smuzhiyun 		memblock_add(base, size);
41*4882a593Smuzhiyun 	}
42*4882a593Smuzhiyun }
43*4882a593Smuzhiyun 
44*4882a593Smuzhiyun 
prom_free_prom_memory(void)45*4882a593Smuzhiyun void __init prom_free_prom_memory(void)
46*4882a593Smuzhiyun {
47*4882a593Smuzhiyun }
48