linux-sg2042/arch/mips/sgi-ip32/ip32-memory.c

50 lines
1.1 KiB
C

/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2003 Keith M Wesolowski
* Copyright (C) 2005 Ilya A. Volynets (Total Knowledge)
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/ip32/crime.h>
#include <asm/bootinfo.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
extern void crime_init(void);
void __init prom_meminit (void)
{
u64 base, size;
int bank;
crime_init();
for (bank=0; bank < CRIME_MAXBANKS; bank++) {
u64 bankctl = crime->bank_ctrl[bank];
base = (bankctl & CRIME_MEM_BANK_CONTROL_ADDR) << 25;
if (bank != 0 && base == 0)
continue;
size = (bankctl & CRIME_MEM_BANK_CONTROL_SDRAM_SIZE) ? 128 : 32;
size <<= 20;
if (base + size > (256 << 20))
base += CRIME_HI_MEM_BASE;
printk("CRIME MC: bank %u base 0x%016lx size %luMiB\n",
bank, base, size >> 20);
add_memory_region (base, size, BOOT_MEM_RAM);
}
}
unsigned long __init prom_free_prom_memory (void)
{
return 0;
}