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openwrt-xburst/target/linux/ramips/files/arch/mips/ralink/common/setup.c
juhosg a43a8c9864 [ramips] share memory size detection code
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17454 3c298f89-4303-0410-b956-a3cf2f4a3e73
2009-08-31 18:53:26 +00:00

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939 B
C

/*
* Ralink SoC common setup
*
* Copyright (C) 2008-2009 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/mach-ralink/common.h>
#include <ralink_soc.h>
static void __init detect_mem_size(void)
{
unsigned long size;
for (size = RALINK_SOC_MEM_SIZE_MIN; size < RALINK_SOC_MEM_SIZE_MAX;
size <<= 1 ) {
if (!memcmp(detect_mem_size,
detect_mem_size + size, 1024))
break;
}
add_memory_region(RALINK_SOC_SDRAM_BASE, size, BOOT_MEM_RAM);
}
void __init plat_mem_setup(void)
{
set_io_port_base(KSEG1);
detect_mem_size();
ramips_soc_setup();
}