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/*
* (C) Copyright 2001-2003
* Stefan Roese, esd gmbh germany, stefan.roese@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 <command.h>
#include <malloc.h>
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, 0xFFFFFF9F); /* 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 (epcr, 0xa8400000); /* ebc always driven */
return 0;
}
int misc_init_f (void)
{
return 0; /* dummy implementation */
}
int misc_init_r (void)
{
volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);
volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);
volatile unsigned char *duart2_mcr = (unsigned char *)((ulong)DUART2_BA + 4);
volatile unsigned char *duart3_mcr = (unsigned char *)((ulong)DUART3_BA + 4);
volatile unsigned char *led_reg = (unsigned char *)((ulong)DUART0_BA + 0x20);
unsigned long val;
int delay, flashcnt;
char *str;
/*
* Enable interrupts in exar duart mcr[3]
*/
*duart0_mcr = 0x08;
*duart1_mcr = 0x08;
*duart2_mcr = 0x08;
*duart3_mcr = 0x08;
/*
* Set RS232/RS422 control (RS232 = high on GPIO)
*/
val = in32(GPIO0_OR);
val &= ~(CFG_UART2_RS232 | CFG_UART3_RS232 | CFG_UART4_RS232 | CFG_UART5_RS232);
str = getenv("phys0");
if (!str || (str && (str[0] == '0')))
val |= CFG_UART2_RS232;
str = getenv("phys1");
if (!str || (str && (str[0] == '0')))
val |= CFG_UART3_RS232;
str = getenv("phys2");
if (!str || (str && (str[0] == '0')))
val |= CFG_UART4_RS232;
str = getenv("phys3");
if (!str || (str && (str[0] == '0')))
val |= CFG_UART5_RS232;
out32(GPIO0_OR, val);
/*
* Set NAND-FLASH GPIO signals to default
*/
out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));
out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);
/*
* check board type and setup AP power
*/
str = getenv("bd_type"); /* this is only set on non prototype hardware */
if (str != NULL) {
if ((strcmp(str, "swch405") == 0) || (strcmp(str, "hub405") == 0)) {
unsigned char led_reg_default = 0;
str = getenv("ap_pwr");
if (!str || (str && (str[0] == '1')))
led_reg_default = 0x04 | 0x02 ; /* U2_LED | AP_PWR */
/*
* Flash LEDs on SWCH405
*/
for (flashcnt = 0; flashcnt < 3; flashcnt++) {
*led_reg = led_reg_default; /* LED_A..D off */
for (delay = 0; delay < 100; delay++)
udelay(1000);
*led_reg = led_reg_default | 0xf0; /* LED_A..D on */
for (delay = 0; delay < 50; delay++)
udelay(1000);
}
*led_reg = led_reg_default;
}
}
/*
* Reset external DUARTs
*/
out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */
udelay(10); /* wait 10us */
out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */
udelay(1000); /* wait 1ms */
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
unsigned char str[64];
int i = getenv_r ("serial#", str, sizeof(str));
puts ("Board: ");
if (i == -1) {
puts ("### No HW ID - assuming HUB405");
} else {
puts(str);
}
putc ('\n');
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
return 0;
}
long int initdram (int board_type)
{
unsigned long val;
mtdcr(memcfga, mem_mb0cf);
val = mfdcr(memcfgd);
#if 0
printf("\nmb0cf=%x\n", val); /* test-only */
printf("strap=%x\n", mfdcr(strap)); /* test-only */
#endif
return (4*1024*1024 << ((val & 0x000e0000) >> 17));
}
int testdram (void)
{
/* TODO: XXX XXX XXX */
printf ("test: 16 MB - ok\n");
return (0);
}
#if (CONFIG_COMMANDS & CFG_CMD_NAND)
#include <linux/mtd/nand.h>
extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];
void nand_init(void)
{
nand_probe(CFG_NAND_BASE);
if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
print_size(nand_dev_desc[0].totlen, "\n");
}
}
#endif
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