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/*
* (C) Copyright 2001-2003
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* (C) Copyright 2005-2009
* Matthias Fuchs, esd gmbh germany, matthias.fuchs@esd-electronics.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 <asm/processor.h>
#include <asm/io.h>
#include <command.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
extern void lxt971_no_sleep(void);
int board_early_init_f (void)
{
/*
* IRQ 0-15 405GP internally generated; active high; level sensitive
* IRQ 16 405GP internally generated; active low; level sensitive
* IRQ 17-24 RESERVED
* IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
* IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
* IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
* IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
* IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
* IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
* IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
*/
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
mtdcr(uicer, 0x00000000); /* disable all ints */
mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
mtdcr(uicpr, 0xFFFFFF81); /* set int polarities */
mtdcr(uictr, 0x10000000); /* set int trigger levels */
mtdcr(uicvcr, 0x00000001); /* set vect base=0, INT0 highest priority */
mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
/*
* EBC Configuration Register:
* set ready timeout to 512 ebc-clks -> ca. 15 us
*/
mtebc (EBC0_CFG, 0xa8400000);
/*
* Setup GPIO pins
*/
mtdcr(CPC0_CR0, mfdcr(CPC0_CR0) | ((CONFIG_SYS_FPGA_INIT |
CONFIG_SYS_FPGA_DONE |
CONFIG_SYS_XEREADY |
CONFIG_SYS_NONMONARCH |
CONFIG_SYS_REV1_2) << 5));
if (!(in_be32((void *)GPIO0_IR) & CONFIG_SYS_REV1_2)) {
/* rev 1.2 boards */
mtdcr(CPC0_CR0, mfdcr(CPC0_CR0) | ((CONFIG_SYS_INTA_FAKE |
CONFIG_SYS_SELF_RST) << 5));
}
out_be32((void *)GPIO0_OR, CONFIG_SYS_VPEN);
/* setup for output */
out_be32((void *)GPIO0_TCR, CONFIG_SYS_FPGA_PRG | CONFIG_SYS_FPGA_CLK |
CONFIG_SYS_FPGA_DATA | CONFIG_SYS_XEREADY | CONFIG_SYS_VPEN);
/*
* - check if rev1_2 is low, then:
* - set/reset CONFIG_SYS_INTA_FAKE/CONFIG_SYS_SELF_RST
* in TCR to assert INTA# or SELFRST#
*/
return 0;
}
int misc_init_r (void)
{
/* adjust flash start and offset */
gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
gd->bd->bi_flashoffset = 0;
/* deassert EREADY# */
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | CONFIG_SYS_XEREADY);
return (0);
}
ushort pmc405_pci_subsys_deviceid(void)
{
ulong val;
val = in_be32((void *)GPIO0_IR);
if (!(val & CONFIG_SYS_REV1_2)) { /* low=rev1.2 */
/* check monarch# signal */
if (val & CONFIG_SYS_NONMONARCH)
return CONFIG_SYS_PCI_SUBSYS_DEVICEID_NONMONARCH;
return CONFIG_SYS_PCI_SUBSYS_DEVICEID_MONARCH;
}
return CONFIG_SYS_PCI_SUBSYS_DEVICEID_NONMONARCH;
}
/*
* Check Board Identity
*/
int checkboard (void)
{
ulong val;
char str[64];
int i = getenv_r("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1)
puts ("### No HW ID - assuming PMC405");
else
puts(str);
val = in_be32((void *)GPIO0_IR);
if (!(val & CONFIG_SYS_REV1_2)) { /* low=rev1.2 */
puts(" rev1.2 (");
if (val & CONFIG_SYS_NONMONARCH) /* monarch# signal */
puts("non-");
puts("monarch)");
} else
puts(" <=rev1.1");
putc ('\n');
return 0;
}
void reset_phy(void)
{
#ifdef CONFIG_LXT971_NO_SLEEP
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
#endif
}
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