Emulation/switch-coreboot
1
0
Fork 0
mirror of https://github.com/fail0verflow/switch-coreboot.git synced 2025-05-04 01:39:18 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

Read actual memory size in qemu-i386

Browse source 
Signed-Off-By: Patrick Georgi <patrick@georgi-clan.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>

git-svn-id: svn://coreboot.org/repository/coreboot-v3@947 f3766cd6-281f-0410-b1cd-43a5c92072e9
This commit is contained in:
Patrick Georgi 2008-10-23 12:56:34 +00:00
parent 932667384b
commit e0ab3a5564
2 changed files with 15 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
northbridge/intel/i440bxemulation/domain
View file

@ -19,6 +19,5 @@
*/
{
ramsize = "128";
device_operations = "i440bx_domain";
};

18
northbridge/intel/i440bxemulation/i440bx.c
View file

@ -3,6 +3,7 @@
*
* Copyright (C) 2000 Ron Minnich, Advanced Computing Lab, LANL
* Copyright (C) 2007 Ronald G. Minnich <rminnich@gmail.com>
* Copyright (C) 2008 Patrick Georgi <patrick@georgi-clan.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -43,19 +44,30 @@
#include <device/device.h>
#include <device/pci.h>
#include <string.h>
#include <io.h>
#include "i440bx.h"
#include <statictree.h>
/* Here are the ops for 440BX as a PCI domain. */
static int inb_cmos(int port)
{
outb(port, 0x70);
return inb(0x71);
}
static void pci_domain_set_resources(struct device *dev)
{
struct device *mc_dev;
u32 tolmk; /* Top of low mem, Kbytes. */
int idx;
struct northbridge_intel_i440bxemulation_domain_config *device_configuration =
dev->device_configuration;
tolmk = device_configuration->ramsize * 1024;
/* read large mem memory descriptor
for <16 MB read the more detailed small mem descriptor
all values in kbytes */
tolmk = ((inb_cmos(0x35)<<8) |inb_cmos(0x34)) * 64;
if (tolmk <= 16 * 1024) {
tolmk = (inb_cmos(0x31)<<8) |inb_cmos(0x30);
}
printk(BIOS_WARNING, "Ignoring chipset specified RAM size. Using dts "
"settings of %d kB instead.\n", tolmk);
mc_dev = dev->link[0].children;