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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 <asm/io.h>
#include <command.h>
#include <malloc.h>
DECLARE_GLOBAL_DATA_PTR;
extern void lxt971_no_sleep(void);
int board_revision(void)
{
unsigned long osrl_reg;
unsigned long isr1l_reg;
unsigned long tcr_reg;
unsigned long value;
/*
* Get version of HUB405 board from GPIO's
*/
/*
* Setup GPIO pin(s) (IRQ6/GPIO23)
*/
osrl_reg = in_be32((void *)GPIO0_OSRH);
isr1l_reg = in_be32((void *)GPIO0_ISR1H);
tcr_reg = in_be32((void *)GPIO0_TCR);
out_be32((void *)GPIO0_OSRH, osrl_reg & ~0x00030000); /* output select */
out_be32((void *)GPIO0_ISR1H, isr1l_reg | 0x00030000); /* input select */
out_be32((void *)GPIO0_TCR, tcr_reg & ~0x00000100); /* select input */
udelay(1000); /* wait some time before reading input */
value = in_be32((void *)GPIO0_IR) & 0x00000100; /* get config bits */
/*
* Restore GPIO settings
*/
out_be32((void *)GPIO0_OSRH, osrl_reg); /* output select */
out_be32((void *)GPIO0_ISR1H, isr1l_reg); /* input select */
out_be32((void *)GPIO0_TCR, tcr_reg); /* enable output driver for outputs */
if (value & 0x00000100) {
/* Revision 1.1 or 1.2 detected */
return 1;
}
/* Revision 1.0 */
return 0;
}
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 (EBC0_CFG, 0xa8400000); /* ebc always driven */
return 0;
}
#define LED_REG (DUART0_BA + 0x20)
int misc_init_r (void)
{
unsigned long val;
int delay, flashcnt;
char *str;
char hw_rev[4];
/*
* Enable interrupts in exar duart mcr[3]
*/
out_8((void *)(DUART0_BA + 4), 0x08);
out_8((void *)(DUART1_BA + 4), 0x08);
out_8((void *)(DUART2_BA + 4), 0x08);
out_8((void *)(DUART3_BA + 4), 0x08);
/*
* Set RS232/RS422 control (RS232 = high on GPIO)
*/
val = in_be32((void *)GPIO0_OR);
val &= ~(CONFIG_SYS_UART2_RS232 | CONFIG_SYS_UART3_RS232 |
CONFIG_SYS_UART4_RS232 | CONFIG_SYS_UART5_RS232);
str = getenv("phys0");
if (!str || (str && (str[0] == '0')))
val |= CONFIG_SYS_UART2_RS232;
str = getenv("phys1");
if (!str || (str && (str[0] == '0')))
val |= CONFIG_SYS_UART3_RS232;
str = getenv("phys2");
if (!str || (str && (str[0] == '0')))
val |= CONFIG_SYS_UART4_RS232;
str = getenv("phys3");
if (!str || (str && (str[0] == '0')))
val |= CONFIG_SYS_UART5_RS232;
out_be32((void *)GPIO0_OR, val);
/*
* 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") && (gd->board_type >= 1)))) {
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
*/
for (flashcnt = 0; flashcnt < 3; flashcnt++) {
/* LED_A..D off */
out_8((void *)LED_REG, led_reg_default);
for (delay = 0; delay < 100; delay++)
udelay(1000);
/* LED_A..D on */
out_8((void *)LED_REG, led_reg_default | 0xf0);
for (delay = 0; delay < 50; delay++)
udelay(1000);
}
out_8((void *)LED_REG, led_reg_default);
}
}
/*
* Reset external DUARTs
*/
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) | CONFIG_SYS_DUART_RST); /* set reset to high */
udelay(10); /* wait 10us */
out_be32((void *)GPIO0_OR,
in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); /* set reset to low */
udelay(1000); /* wait 1ms */
/*
* Store hardware revision in environment for further processing
*/
sprintf(hw_rev, "1.%ld", gd->board_type);
setenv("hw_rev", hw_rev);
return (0);
}
/*
* Check Board Identity:
*/
int checkboard (void)
{
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);
}
if (getenv_r("bd_type", str, sizeof(str)) != -1) {
printf(" (%s", str);
} else {
puts(" (Missing bd_type!");
}
gd->board_type = board_revision();
printf(", Rev 1.%ld)\n", gd->board_type);
/*
* Disable sleep mode in LXT971
*/
lxt971_no_sleep();
return 0;
}
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