u-boot/board/qemu-mips/qemu-mips.c
Becky Bruce 9973e3c614 Change initdram() return type to phys_size_t
This patch changes the return type of initdram() from long int to phys_size_t.
This is required for a couple of reasons: long int limits the amount of dram
to 2GB, and u-boot in general is moving over to phys_size_t to represent the
size of physical memory.  phys_size_t is defined as an unsigned long on almost
all current platforms.

This patch *only* changes the return type of the initdram function (in
include/common.h, as well as in each board's implementation of initdram).  It
does not actually modify the code inside the function on any of the platforms;
platforms which wish to support more than 2GB of DRAM will need to modify
their initdram() function code.

Build tested with MAKEALL for ppc, arm, mips, mips-el. Booted on powerpc
MPC8641HPCN.

Signed-off-by: Becky Bruce <becky.bruce@freescale.com>
2008-06-12 08:50:18 +02:00

90 lines
1.9 KiB
C

/*
* (C) Copyright 2007
* Vlad Lungu vlad.lungu@windriver.com
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <command.h>
#include <asm/mipsregs.h>
#include <asm/io.h>
phys_size_t initdram(int board_type)
{
/* Sdram is setup by assembler code */
/* If memory could be changed, we should return the true value here */
return MEM_SIZE*1024*1024;
}
int checkboard(void)
{
u32 proc_id;
u32 config1;
proc_id = read_c0_prid();
printf("Board: Qemu -M mips CPU: ");
switch (proc_id) {
case 0x00018000:
printf("4Kc");
break;
case 0x00018400:
printf("4KEcR1");
break;
case 0x00019000:
printf("4KEc");
break;
case 0x00019300:
config1 = read_c0_config1();
if (config1 & 1)
printf("24Kf");
else
printf("24Kc");
break;
case 0x00019500:
printf("34Kf");
break;
case 0x00000400:
printf("R4000");
break;
case 0x00018100:
config1 = read_c0_config1();
if (config1 & 1)
printf("5Kf");
else
printf("5Kc");
break;
case 0x000182a0:
printf("20Kc");
break;
default:
printf("unknown");
}
printf(" proc_id=0x%x\n", proc_id);
return 0;
}
int misc_init_r(void)
{
set_io_port_base(0);
return 0;
}