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Patch by Greg Ungerer, 19 May 2005:

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add support for the OpenGear CM4008 board
This commit is contained in:
wdenk 2005-05-19 22:46:33 +00:00
parent 3a574cbe72
commit 121fc64022
1 changed files with 101 additions and 0 deletions
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101
board/cm4008/cm4008.c Normal file
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/*
* (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>
/* ------------------------------------------------------------------------- */
#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=16M initrd=0x400000,6M 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)
{
DECLARE_GLOBAL_DATA_PTR;
/* arch number of CM4008 */
gd->bd->bi_arch_number = 624;
/* 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)
{
DECLARE_GLOBAL_DATA_PTR;
gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
return (0);
}