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/*
* (C) Copyright 2001
* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch
*
* 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
*
* hacked for evb440spe
*/
#include <common.h>
#include <command.h>
#include "yucca.h"
#include <i2c.h>
#include <asm/byteorder.h>
extern void print_evb440spe_info(void);
static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag,
int flag, int argc, char *argv[]);
/* ------------------------------------------------------------------------- */
int do_evb440spe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
return setBootStrapClock (cmdtp, 1, flag, argc, argv);
}
/* ------------------------------------------------------------------------- */
/* Modify memory.
*
* Syntax:
* evb440spe wrclk prom0,prom1
*/
static int setBootStrapClock(cmd_tbl_t *cmdtp, int incrflag, int flag,
int argc, char *argv[])
{
uchar chip;
ulong data;
int nbytes;
extern char console_buffer[];
char sysClock[4];
char cpuClock[4];
char plbClock[4];
char pcixClock[4];
if (argc < 3) {
printf ("Usage:\n%s\n", cmdtp->usage);
return 1;
}
if (strcmp(argv[2], "prom0") == 0)
chip = IIC0_BOOTPROM_ADDR;
else
chip = IIC0_ALT_BOOTPROM_ADDR;
do {
printf("enter sys clock frequency 33 or 66 MHz or quit to abort\n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if ((strcmp(console_buffer, "33") != 0) &
(strcmp(console_buffer, "66") != 0))
nbytes=0;
strcpy(sysClock, console_buffer);
} while (nbytes == 0);
do {
if (strcmp(sysClock, "66") == 0) {
printf("enter cpu clock frequency 400, 533 MHz or quit to abort\n");
} else {
#ifdef CONFIG_STRESS
printf("enter cpu clock frequency 400, 500, 533, 667 MHz or quit to abort\n");
#else
printf("enter cpu clock frequency 400, 500, 533 MHz or quit to abort\n");
#endif
}
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if (strcmp(sysClock, "66") == 0) {
if ((strcmp(console_buffer, "400") != 0) &
(strcmp(console_buffer, "533") != 0)
#ifdef CONFIG_STRESS
& (strcmp(console_buffer, "667") != 0)
#endif
) {
nbytes = 0;
}
} else {
if ((strcmp(console_buffer, "400") != 0) &
(strcmp(console_buffer, "500") != 0) &
(strcmp(console_buffer, "533") != 0)
#ifdef CONFIG_STRESS
& (strcmp(console_buffer, "667") != 0)
#endif
) {
nbytes = 0;
}
}
strcpy(cpuClock, console_buffer);
} while (nbytes == 0);
if (strcmp(cpuClock, "500") == 0){
strcpy(plbClock, "166");
} else if (strcmp(cpuClock, "533") == 0){
strcpy(plbClock, "133");
} else {
do {
if (strcmp(cpuClock, "400") == 0)
printf("enter plb clock frequency 100, 133 MHz or quit to abort\n");
#ifdef CONFIG_STRESS
if (strcmp(cpuClock, "667") == 0)
printf("enter plb clock frequency 133, 166 MHz or quit to abort\n");
#endif
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if (strcmp(cpuClock, "400") == 0) {
if ((strcmp(console_buffer, "100") != 0) &
(strcmp(console_buffer, "133") != 0))
nbytes = 0;
}
#ifdef CONFIG_STRESS
if (strcmp(cpuClock, "667") == 0) {
if ((strcmp(console_buffer, "133") != 0) &
(strcmp(console_buffer, "166") != 0))
nbytes = 0;
}
#endif
strcpy(plbClock, console_buffer);
} while (nbytes == 0);
}
do {
printf("enter Pci-X clock frequency 33, 66, 100 or 133 MHz or quit to abort\n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "quit") == 0)
return 0;
if ((strcmp(console_buffer, "33") != 0) &
(strcmp(console_buffer, "66") != 0) &
(strcmp(console_buffer, "100") != 0) &
(strcmp(console_buffer, "133") != 0)) {
nbytes = 0;
}
strcpy(pcixClock, console_buffer);
} while (nbytes == 0);
printf("\nsys clk = %s MHz\n", sysClock);
printf("cpu clk = %s MHz\n", cpuClock);
printf("plb clk = %s MHz\n", plbClock);
printf("Pci-X clk = %s MHz\n", pcixClock);
do {
printf("\npress [y] to write I2C bootstrap \n");
printf("or [n] to abort. \n");
printf("Don't forget to set board switches \n");
printf("according to your choice before re-starting \n");
printf("(refer to 440spe_uboot_kit_um_1_01.pdf) \n");
nbytes = readline (" ? ");
if (strcmp(console_buffer, "n") == 0)
return 0;
} while (nbytes == 0);
if (strcmp(sysClock, "33") == 0) {
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "100") == 0))
data = 0x8678c206;
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x8678c2c6;
if ((strcmp(cpuClock, "500") == 0))
data = 0x8778f2c6;
if ((strcmp(cpuClock, "533") == 0))
data = 0x87790252;
#ifdef CONFIG_STRESS
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x87794256;
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "166") == 0))
data = 0x87794206;
#endif
}
if (strcmp(sysClock, "66") == 0) {
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "100") == 0))
data = 0x84706206;
if ((strcmp(cpuClock, "400") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x847062c6;
if ((strcmp(cpuClock, "533") == 0))
data = 0x85708206;
#ifdef CONFIG_STRESS
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "133") == 0))
data = 0x8570a256;
if ((strcmp(cpuClock, "667") == 0) &
(strcmp(plbClock, "166") == 0))
data = 0x8570a206;
#endif
}
#ifdef DEBUG
printf(" pin strap0 to write in i2c = %x\n", data);
#endif /* DEBUG */
if (i2c_write(chip, 0, 1, (uchar *)&data, 4) != 0)
printf("Error writing strap0 in %s\n", argv[2]);
if (strcmp(pcixClock, "33") == 0)
data = 0x00000701;
if (strcmp(pcixClock, "66") == 0)
data = 0x00000601;
if (strcmp(pcixClock, "100") == 0)
data = 0x00000501;
if (strcmp(pcixClock, "133") == 0)
data = 0x00000401;
if (strcmp(plbClock, "166") == 0)
data = data | 0x05950000;
else
data = data | 0x05A50000;
#ifdef DEBUG
printf(" pin strap1 to write in i2c = %x\n", data);
#endif /* DEBUG */
udelay(1000);
if (i2c_write(chip, 4, 1, (uchar *)&data, 4) != 0)
printf("Error writing strap1 in %s\n", argv[2]);
return 0;
}
U_BOOT_CMD(
evb440spe, 3, 1, do_evb440spe,
"evb440spe - program the serial device strap\n",
"wrclk [prom0|prom1] - program the serial device strap\n"
);
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