cm41xx.c
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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>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/arch/platform.h>
#include <netdev.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)
{
char *sp = (char *) 0x0201c020;
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_eth_init(bd_t *bis)
{
return ks8695_eth_initialize();
}
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);
}