mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 03:58:17 +00:00
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
/*
|
|
* (C) Copyright 2005
|
|
* Greg Ungerer, OpenGear Inc, <greg.ungerer@opengear.com>
|
|
*
|
|
* (C) Copyright 2002
|
|
* Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
|
|
*
|
|
* (C) Copyright 2002
|
|
* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
|
|
* Marius Groeger <mgroeger@sysgo.de>
|
|
*
|
|
* 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 <asm/arch/platform.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
#define ks8695_read(a) *((volatile unsigned int *) (KS8695_IO_BASE+(a)))
|
|
#define ks8695_write(a,b) *((volatile unsigned int *) (KS8695_IO_BASE+(a))) = (b)
|
|
|
|
/* ------------------------------------------------------------------------- */
|
|
|
|
|
|
/*
|
|
* Miscelaneous platform dependent initialisations
|
|
*/
|
|
int env_flash_cmdline (void)
|
|
{
|
|
unsigned char *sp = (unsigned char *) 0x0201c020;
|
|
unsigned char *ep;
|
|
int len;
|
|
|
|
/* Check if "erase" push button is depressed */
|
|
if ((ks8695_read(KS8695_GPIO_DATA) & 0x8) == 0) {
|
|
printf("### Entering network recovery mode...\n");
|
|
setenv("bootargs", "console=ttyAM0,115200 mem=32M initrd=0x400000,8M root=/dev/ram0");
|
|
setenv("bootcmd", "bootp 0x400000; gofsk 0x400000");
|
|
setenv("bootdelay", "2");
|
|
return 0;
|
|
}
|
|
|
|
/* Check for flash based kernel boot args to use as default */
|
|
for (ep = sp, len = 0; ((len < 1024) && (*ep != 0)); ep++, len++)
|
|
;
|
|
|
|
if ((len > 0) && (len <1024))
|
|
setenv("bootargs", sp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int board_late_init (void)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
|
|
int board_init (void)
|
|
{
|
|
/* arch number of CM41xx */
|
|
gd->bd->bi_arch_number = 672;
|
|
|
|
/* adress of boot parameters */
|
|
gd->bd->bi_boot_params = 0x00000100;
|
|
|
|
/* power down all but port 0 on the switch */
|
|
ks8695_write(KS8695_SWITCH_LPPM12, 0x00000005);
|
|
ks8695_write(KS8695_SWITCH_LPPM34, 0x00050005);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int dram_init (void)
|
|
{
|
|
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
|
|
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
|
|
|
|
return (0);
|
|
}
|