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/*
* 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.
*
* PROM library functions for acquiring/using memory descriptors given to
* us from the YAMON.
*
* Copyright (C) 1999,2000,2012 MIPS Technologies, Inc.
* All rights reserved.
* Authors: Carsten Langgaard <carstenl@mips.com>
* Steven J. Hill <sjhill@mips.com>
*/
#include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
#include <asm/cdmm.h>
#include <asm/maar.h>
#include <asm/sections.h>
#include <asm/fw/fw.h>
/* determined physical memory size, not overridden by command line args */
unsigned long physical_memsize = 0L;
static void free_init_pages_eva_malta(void *begin, void *end)
{
free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
__pa_symbol((unsigned long *)end));
}
void __init fw_meminit(void)
{
bool eva = IS_ENABLED(CONFIG_EVA);
free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
}
void __init prom_free_prom_memory(void)
{
unsigned long addr;
int i;
for (i = 0; i < boot_mem_map.nr_map; i++) {
if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
continue;
addr = boot_mem_map.map[i].addr;
free_init_pages("YAMON memory",
addr, addr + boot_mem_map.map[i].size);
}
}
phys_addr_t mips_cdmm_phys_base(void)
{
/* This address is "typically unused" */
return 0x1fc10000;
}
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