diff options
Diffstat (limited to 'arch/mips/mti-sead3/sead3-memory.c')
| -rw-r--r-- | arch/mips/mti-sead3/sead3-memory.c | 138 | 
1 files changed, 0 insertions, 138 deletions
diff --git a/arch/mips/mti-sead3/sead3-memory.c b/arch/mips/mti-sead3/sead3-memory.c deleted file mode 100644 index da9244106f8..00000000000 --- a/arch/mips/mti-sead3/sead3-memory.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * 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) 2012 MIPS Technologies, Inc.  All rights reserved. - */ -#include <linux/bootmem.h> - -#include <asm/bootinfo.h> -#include <asm/sections.h> -#include <asm/mips-boards/prom.h> - -enum yamon_memtypes { -	yamon_dontuse, -	yamon_prom, -	yamon_free, -}; - -static struct prom_pmemblock mdesc[PROM_MAX_PMEMBLOCKS]; - -/* determined physical memory size, not overridden by command line args  */ -unsigned long physical_memsize = 0L; - -struct prom_pmemblock * __init prom_getmdesc(void) -{ -	char *memsize_str, *ptr; -	unsigned int memsize; -	static char cmdline[COMMAND_LINE_SIZE] __initdata; -	long val; -	int tmp; - -	/* otherwise look in the environment */ -	memsize_str = prom_getenv("memsize"); -	if (!memsize_str) { -		pr_warn("memsize not set in boot prom, set to default 32Mb\n"); -		physical_memsize = 0x02000000; -	} else { -		tmp = kstrtol(memsize_str, 0, &val); -		physical_memsize = (unsigned long)val; -	} - -#ifdef CONFIG_CPU_BIG_ENDIAN -	/* SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last -	   word of physical memory */ -	physical_memsize -= PAGE_SIZE; -#endif - -	/* Check the command line for a memsize directive that overrides -	   the physical/default amount */ -	strcpy(cmdline, arcs_cmdline); -	ptr = strstr(cmdline, "memsize="); -	if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' ')) -		ptr = strstr(ptr, " memsize="); - -	if (ptr) -		memsize = memparse(ptr + 8, &ptr); -	else -		memsize = physical_memsize; - -	memset(mdesc, 0, sizeof(mdesc)); - -	mdesc[0].type = yamon_dontuse; -	mdesc[0].base = 0x00000000; -	mdesc[0].size = 0x00001000; - -	mdesc[1].type = yamon_prom; -	mdesc[1].base = 0x00001000; -	mdesc[1].size = 0x000ef000; - -	/* -	 * The area 0x000f0000-0x000fffff is allocated for BIOS memory by the -	 * south bridge and PCI access always forwarded to the ISA Bus and -	 * BIOSCS# is always generated. -	 * This mean that this area can't be used as DMA memory for PCI -	 * devices. -	 */ -	mdesc[2].type = yamon_dontuse; -	mdesc[2].base = 0x000f0000; -	mdesc[2].size = 0x00010000; - -	mdesc[3].type = yamon_dontuse; -	mdesc[3].base = 0x00100000; -	mdesc[3].size = CPHYSADDR(PFN_ALIGN((unsigned long)&_end)) - -		mdesc[3].base; - -	mdesc[4].type = yamon_free; -	mdesc[4].base = CPHYSADDR(PFN_ALIGN(&_end)); -	mdesc[4].size = memsize - mdesc[4].base; - -	return &mdesc[0]; -} - -static int __init prom_memtype_classify(unsigned int type) -{ -	switch (type) { -	case yamon_free: -		return BOOT_MEM_RAM; -	case yamon_prom: -		return BOOT_MEM_ROM_DATA; -	default: -		return BOOT_MEM_RESERVED; -	} -} - -void __init prom_meminit(void) -{ -	struct prom_pmemblock *p; - -	p = prom_getmdesc(); - -	while (p->size) { -		long type; -		unsigned long base, size; - -		type = prom_memtype_classify(p->type); -		base = p->base; -		size = p->size; - -		add_memory_region(base, size, type); -		p++; -	} -} - -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("prom memory", -				addr, addr + boot_mem_map.map[i].size); -	} -}  |