switch-coreboot/lib/tables.c
Ronald G. Minnich cd4625560e add tables support to LinuxBIOS.
We have merged the plethora of include files into one. A given linuxbios
target architecture must support all the functions described therein. 
All the structs etc. in include/tables.h are known to be
architecture-independent. 

We hope this new layout is easier to folow than the old one. 

Todo: Remove the LGDT code from tables writing (how did THAT get in
there ;-) and put it somewhere sane; add OFW table support. We are going
to need some nice OFW table code. 

Also, the license headers should be correct in this commit. 

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@128 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-02-26 09:43:12 +00:00

47 lines
1.5 KiB
C

/*
* table management code for Linux BIOS
* This is the architecture-independent driver; it has a hook to architecture-dependent code.
*
* Copright (C) 2002 Eric Biederman, Linux NetworX
*
* 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
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
*
*/
#include <console/console.h>
#include <cpu.h>
#include <tables.h>
#include <boot/linuxbios_tables.h>
struct lb_memory *
write_tables(void)
{
unsigned long low_table_start, low_table_end;
unsigned long rom_table_start, rom_table_end;
rom_table_start = 0xf0000;
rom_table_end = 0xf0000;
/* Start low addr at 16 bytes instead of 0 because of a buglet
* in the generic linux unzip code, as it tests for the a20 line.
*/
low_table_start = 0;
low_table_end = 16;
/* The linuxbios table must be in 0-4K or 960K-1M */
write_linuxbios_table(
low_table_start, low_table_end,
rom_table_start, rom_table_end);
return get_lb_mem();
}