mb.c

U BOOT源码

/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, [e-mail].
 *
 * 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 <board/cogent/dipsw.h>
#include <board/cogent/lcd.h>
#include <board/cogent/rtc.h>
#include <board/cogent/par.h>
#include <board/cogent/pci.h>

/* ------------------------------------------------------------------------- */

#if defined(CONFIG_8260)

#include <ioports.h>

/*
 * I/O Port configuration table
 *
 * if conf is 1, then that port pin will be configured at boot time
 * according to the five values podr/pdir/ppar/psor/pdat for that entry
 */

const iop_conf_t iop_conf_tab[4][32] = {

    /* Port A configuration */
    {	/*	      conf ppar psor pdir podr pdat */
	/* PA31 */ {   0,   0,   0,   0,   0,   0   },
	/* PA30 */ {   0,   0,   0,   0,   0,   0   },
	/* PA29 */ {   0,   0,   0,   0,   0,   0   },
	/* PA28 */ {   0,   0,   0,   0,   0,   0   },
	/* PA27 */ {   0,   0,   0,   0,   0,   0   },
	/* PA26 */ {   0,   0,   0,   0,   0,   0   },
	/* PA25 */ {   0,   0,   0,   0,   0,   0   },
	/* PA24 */ {   0,   0,   0,   0,   0,   0   },
	/* PA23 */ {   0,   0,   0,   0,   0,   0   },
	/* PA22 */ {   0,   0,   0,   0,   0,   0   },
	/* PA21 */ {   0,   0,   0,   0,   0,   0   },
	/* PA20 */ {   0,   0,   0,   0,   0,   0   },
	/* PA19 */ {   0,   0,   0,   0,   0,   0   },
	/* PA18 */ {   0,   0,   0,   0,   0,   0   },
	/* PA17 */ {   0,   0,   0,   0,   0,   0   },
	/* PA16 */ {   0,   0,   0,   0,   0,   0   },
	/* PA15 */ {   0,   0,   0,   0,   0,   0   },
	/* PA14 */ {   0,   0,   0,   0,   0,   0   },
	/* PA13 */ {   0,   0,   0,   0,   0,   0   },
	/* PA12 */ {   0,   0,   0,   0,   0,   0   },
	/* PA11 */ {   0,   0,   0,   0,   0,   0   },
	/* PA10 */ {   0,   0,   0,   0,   0,   0   },
	/* PA9  */ {   1,   1,   0,   1,   0,   0   },	/* SMC2 TXD */
	/* PA8  */ {   1,   1,   0,   0,   0,   0   },	/* SMC2 RXD */
	/* PA7  */ {   0,   0,   0,   0,   0,   0   },
	/* PA6  */ {   0,   0,   0,   0,   0,   0   },
	/* PA5  */ {   0,   0,   0,   0,   0,   0   },
	/* PA4  */ {   0,   0,   0,   0,   0,   0   },
	/* PA3  */ {   0,   0,   0,   0,   0,   0   },
	/* PA2  */ {   0,   0,   0,   0,   0,   0   },
	/* PA1  */ {   0,   0,   0,   0,   0,   0   },
	/* PA0  */ {   0,   0,   0,   0,   0,   0   }
    },


    {   /*	      conf ppar psor pdir podr pdat */
	/* PB31 */ {   0,   0,   0,   0,   0,   0   },
	/* PB30 */ {   0,   0,   0,   0,   0,   0   },
	/* PB29 */ {   0,   0,   0,   0,   0,   0   },
	/* PB28 */ {   0,   0,   0,   0,   0,   0   },
	/* PB27 */ {   0,   0,   0,   0,   0,   0   },
	/* PB26 */ {   0,   0,   0,   0,   0,   0   },
	/* PB25 */ {   0,   0,   0,   0,   0,   0   },
	/* PB24 */ {   0,   0,   0,   0,   0,   0   },
	/* PB23 */ {   0,   0,   0,   0,   0,   0   },
	/* PB22 */ {   0,   0,   0,   0,   0,   0   },
	/* PB21 */ {   0,   0,   0,   0,   0,   0   },
	/* PB20 */ {   0,   0,   0,   0,   0,   0   },
	/* PB19 */ {   0,   0,   0,   0,   0,   0   },
	/* PB18 */ {   0,   0,   0,   0,   0,   0   },
	/* PB17 */ {   0,   0,   0,   0,   0,   0   },
	/* PB16 */ {   0,   0,   0,   0,   0,   0   },
	/* PB15 */ {   0,   0,   0,   0,   0,   0   },
	/* PB14 */ {   0,   0,   0,   0,   0,   0   },
	/* PB13 */ {   0,   0,   0,   0,   0,   0   },
	/* PB12 */ {   0,   0,   0,   0,   0,   0   },
	/* PB11 */ {   0,   0,   0,   0,   0,   0   },
	/* PB10 */ {   0,   0,   0,   0,   0,   0   },
	/* PB9  */ {   0,   0,   0,   0,   0,   0   },
	/* PB8  */ {   0,   0,   0,   0,   0,   0   },
	/* PB7  */ {   0,   0,   0,   0,   0,   0   },
	/* PB6  */ {   0,   0,   0,   0,   0,   0   },
	/* PB5  */ {   0,   0,   0,   0,   0,   0   },
	/* PB4  */ {   0,   0,   0,   0,   0,   0   },
	/* PB3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PB2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PB1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PB0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
    },


    {   /*	      conf ppar psor pdir podr pdat */
	/* PC31 */ {   0,   0,   0,   0,   0,   0   },
	/* PC30 */ {   0,   0,   0,   0,   0,   0   },
	/* PC29 */ {   0,   0,   0,   0,   0,   0   },
	/* PC28 */ {   0,   0,   0,   0,   0,   0   },
	/* PC27 */ {   0,   0,   0,   0,   0,   0   },
	/* PC26 */ {   0,   0,   0,   0,   0,   0   },
	/* PC25 */ {   0,   0,   0,   0,   0,   0   },
	/* PC24 */ {   0,   0,   0,   0,   0,   0   },
	/* PC23 */ {   0,   0,   0,   0,   0,   0   },
	/* PC22 */ {   0,   0,   0,   0,   0,   0   },
	/* PC21 */ {   0,   0,   0,   0,   0,   0   },
	/* PC20 */ {   0,   0,   0,   0,   0,   0   },
	/* PC19 */ {   0,   0,   0,   0,   0,   0   },
	/* PC18 */ {   0,   0,   0,   0,   0,   0   },
	/* PC17 */ {   0,   0,   0,   0,   0,   0   },
	/* PC16 */ {   0,   0,   0,   0,   0,   0   },
	/* PC15 */ {   0,   0,   0,   0,   0,   0   },
	/* PC14 */ {   0,   0,   0,   0,   0,   0   },
	/* PC13 */ {   0,   0,   0,   0,   0,   0   },
	/* PC12 */ {   0,   0,   0,   0,   0,   0   },
	/* PC11 */ {   0,   0,   0,   0,   0,   0   },
	/* PC10 */ {   0,   0,   0,   0,   0,   0   },
	/* PC9  */ {   0,   0,   0,   0,   0,   0   },
	/* PC8  */ {   0,   0,   0,   0,   0,   0   },
	/* PC7  */ {   0,   0,   0,   0,   0,   0   },
	/* PC6  */ {   0,   0,   0,   0,   0,   0   },
	/* PC5  */ {   0,   0,   0,   0,   0,   0   },
	/* PC4  */ {   0,   0,   0,   0,   0,   0   },
	/* PC3  */ {   0,   0,   0,   0,   0,   0   },
	/* PC2  */ {   0,   0,   0,   0,   0,   0   },
	/* PC1  */ {   0,   0,   0,   0,   0,   0   },
	/* PC0  */ {   0,   0,   0,   0,   0,   0   }
    },


    {   /*	      conf ppar psor pdir podr pdat */
	/* PD31 */ {   0,   0,   0,   0,   0,   0   },
	/* PD30 */ {   0,   0,   0,   0,   0,   0   },
	/* PD29 */ {   0,   0,   0,   0,   0,   0   },
	/* PD28 */ {   0,   0,   0,   0,   0,   0   },
	/* PD27 */ {   0,   0,   0,   0,   0,   0   },
	/* PD26 */ {   0,   0,   0,   0,   0,   0   },
	/* PD25 */ {   0,   0,   0,   0,   0,   0   },
	/* PD24 */ {   0,   0,   0,   0,   0,   0   },
	/* PD23 */ {   0,   0,   0,   0,   0,   0   },
	/* PD22 */ {   0,   0,   0,   0,   0,   0   },
	/* PD21 */ {   0,   0,   0,   0,   0,   0   },
	/* PD20 */ {   0,   0,   0,   0,   0,   0   },
	/* PD19 */ {   0,   0,   0,   0,   0,   0   },
	/* PD18 */ {   0,   0,   0,   0,   0,   0   },
	/* PD17 */ {   0,   0,   0,   0,   0,   0   },
	/* PD16 */ {   0,   0,   0,   0,   0,   0   },
	/* PD15 */ {   1,   1,   1,   0,   0,   0   },	/* I2C SDA */
	/* PD14 */ {   1,   1,   1,   0,   0,   0   },	/* I2C SCL */
	/* PD13 */ {   0,   0,   0,   0,   0,   0   },
	/* PD12 */ {   0,   0,   0,   0,   0,   0   },
	/* PD11 */ {   0,   0,   0,   0,   0,   0   },
	/* PD10 */ {   0,   0,   0,   0,   0,   0   },
	/* PD9  */ {   1,   1,   0,   1,   0,   0   },	/* SMC1 TXD */
	/* PD8  */ {   1,   1,   0,   0,   0,   0   },	/* SMC1 RXD */
	/* PD7  */ {   0,   0,   0,   0,   0,   0   },
	/* PD6  */ {   0,   0,   0,   0,   0,   0   },
	/* PD5  */ {   0,   0,   0,   0,   0,   0   },
	/* PD4  */ {   0,   0,   0,   0,   0,   0   },
	/* PD3  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PD2  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PD1  */ {   0,   0,   0,   0,   0,   0   }, /* pin doesn't exist */
	/* PD0  */ {   0,   0,   0,   0,   0,   0   }  /* pin doesn't exist */
    }
};

#endif	/* CONFIG_8260 */

/* ------------------------------------------------------------------------- */

/*
 * Check Board Identity:
 */

int
checkboard(void)
{
    puts ("Board: Cogent " COGENT_MOTHERBOARD " motherboard with a "
	COGENT_CPU_MODULE " CPU Module\n");
    return (0);
}

/* ------------------------------------------------------------------------- */

/*
 * Miscelaneous platform dependent initialisations while still
 * running in flash
 */

int misc_init_f (void)
{
    printf ("DIPSW: ");
    dipsw_init();
    return (0);
}

/* ------------------------------------------------------------------------- */

long int
initdram(int board_type)
{
#if CONFIG_CMA111
    return (32L * 1024L * 1024L);
#else
    unsigned char dipsw_val;
    int dual, size0, size1;
    long int memsize;

    dipsw_val = dipsw_cooked();

    dual = dipsw_val & 0x01;
    size0 = (dipsw_val & 0x08) >> 3;
    size1 = (dipsw_val & 0x04) >> 2;

    if (size0)
	if (size1)
	    memsize = 16L * 1024L * 1024L;
	else
	    memsize =  1L * 1024L * 1024L;
    else
	if (size1)
	    memsize =  4L * 1024L * 1024L;
	else {
	    printf("[Illegal dip switch settings - assuming 16Mbyte SIMMs] ");
	    memsize = 16L * 1024L * 1024L; /* shouldn't happen - guess 16M */
	}

    if (dual)
	memsize *= 2L;

    return (memsize);
#endif
}

/* ------------------------------------------------------------------------- */

/*
 * Miscelaneous platform dependent initialisations after monitor
 * has been relocated into ram
 */

int misc_init_r (void)
{
    printf ("LCD:   ");
    lcd_init();

#if 0
    printf ("RTC:   ");
    rtc_init();

    printf ("PAR:   ");
    par_init();

    printf ("KBM:   ");
    kbm_init();

    printf ("PCI:   ");
    pci_init();
#endif
    return (0);
}