/* * (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 int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);       /*cmd_boot.c*/#if 0#define FPGA_DEBUG#endif/* fpga configuration data - generated by bin2cc */const unsigned char fpgadata[] ={#ifdef CONFIG_CPCI405_VER2# ifdef CONFIG_CPCI405AB#  include "fpgadata_cpci405ab.c"# else#  include "fpgadata_cpci4052.c"# endif#else# include "fpgadata_cpci405.c"#endif};/* * include common fpga code (for esd boards) */#include "../common/fpga.c"/* Prototypes */int cpci405_version(void);int gunzip(void *, int, unsigned char *, int *);int board_pre_init (void){#ifndef CONFIG_CPCI405_VER2	int index, len, i;	int status;#endif#ifdef FPGA_DEBUG	DECLARE_GLOBAL_DATA_PTR;	/* set up serial port with default baudrate */	(void) get_clocks ();	gd->baudrate = CONFIG_BAUDRATE;	serial_init ();	console_init_f();#endif	/*	 * First pull fpga-prg pin low, to disable fpga logic (on version 2 board)	 */	out32(GPIO0_ODR, 0x00000000);        /* no open drain pins      */	out32(GPIO0_TCR, CFG_FPGA_PRG);      /* setup for output        */	out32(GPIO0_OR,  CFG_FPGA_PRG);      /* set output pins to high */	out32(GPIO0_OR, 0);                  /* pull prg low            */	/*	 * Boot onboard FPGA	 */#ifndef CONFIG_CPCI405_VER2	if (cpci405_version() == 1) {		status = fpga_boot((unsigned char *)fpgadata, sizeof(fpgadata));		if (status != 0) {			/* booting FPGA failed */#ifndef FPGA_DEBUG			DECLARE_GLOBAL_DATA_PTR;			/* set up serial port with default baudrate */			(void) get_clocks ();			gd->baudrate = CONFIG_BAUDRATE;			serial_init ();			console_init_f();#endif			printf("\nFPGA: Booting failed ");			switch (status) {			case ERROR_FPGA_PRG_INIT_LOW:				printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");				break;			case ERROR_FPGA_PRG_INIT_HIGH:				printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");				break;			case ERROR_FPGA_PRG_DONE:				printf("(Timeout: DONE not high after programming FPGA)\n ");				break;			}			/* display infos on fpgaimage */			index = 15;			for (i=0; i<4; i++) {				len = fpgadata[index];				printf("FPGA: %s\n", &(fpgadata[index+1]));				index += len+3;			}			putc ('\n');			/* delayed reboot */			for (i=20; i>0; i--) {				printf("Rebooting in %2d seconds \r",i);				for (index=0;index<1000;index++)					udelay(1000);			}			putc ('\n');			do_reset(NULL, 0, 0, NULL);		}	}#endif /* !CONFIG_CPCI405_VER2 */	/*	 * 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) CAN1 (+FPGA on CPCI4052) ; active low; level sensitive	 * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive	 * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive	 * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive	 * IRQ 30 (EXT IRQ 5) PCI SLOT 3; 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*/	if (cpci405_version() == 3) {		mtdcr(uicpr, 0xFFFFFF99);       /* set int polarities */	} else {		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 */	return 0;}/* ------------------------------------------------------------------------- */int ctermm2(void){#ifdef CONFIG_CPCI405_VER2	return 0;                       /* no, board is cpci405 */#else	if ((*(unsigned char *)0xf0000400 == 0x00) &&	    (*(unsigned char *)0xf0000401 == 0x01))		return 0;               /* no, board is cpci405 */	else		return -1;              /* yes, board is cterm-m2 */#endif}int cpci405_host(void){	if (mfdcr(strap) & PSR_PCI_ARBIT_EN)		return -1;              /* yes, board is cpci405 host */	else		return 0;               /* no, board is cpci405 adapter */}int cpci405_version(void){	unsigned long cntrl0Reg;	unsigned long value;	/*	 * Setup GPIO pins (CS2/GPIO11 and CS3/GPIO12 as GPIO)	 */	cntrl0Reg = mfdcr(cntrl0);	mtdcr(cntrl0, cntrl0Reg | 0x03000000);	out32(GPIO0_ODR, in32(GPIO0_ODR) & ~0x00180000);	out32(GPIO0_TCR, in32(GPIO0_TCR) & ~0x00180000);	udelay(1000);                   /* wait some time before reading input */	value = in32(GPIO0_IR) & 0x00180000;       /* get config bits */	/*	 * Restore GPIO settings	 */	mtdcr(cntrl0, cntrl0Reg);	switch (value) {	case 0x00180000:		/* CS2==1 && CS3==1 -> version 1 */		return 1;	case 0x00080000:		/* CS2==0 && CS3==1 -> version 2 */		return 2;	case 0x00100000:		/* CS2==1 && CS3==0 -> version 3 */		return 3;	case 0x00000000:		/* CS2==0 && CS3==0 -> version 4 */		return 4;	default:		/* should not be reached! */		return 2;	}}int misc_init_f (void){	return 0;  /* dummy implementation */}int misc_init_r (void){	DECLARE_GLOBAL_DATA_PTR;	bd_t *bd = gd->bd;	char *	tmp;                    /* Temporary char pointer      */	unsigned long cntrl0Reg;#ifdef CONFIG_CPCI405_VER2	unsigned char *dst;	ulong len = sizeof(fpgadata);	int status;	int index;	int i;	/*	 * On CPCI-405 version 2 the environment is saved in eeprom!	 * FPGA can be gzip compressed (malloc) and booted this late.	 */	if (cpci405_version() >= 2) {		/*		 * Setup GPIO pins (CS6+CS7 as GPIO)		 */		cntrl0Reg = mfdcr(cntrl0);		mtdcr(cntrl0, cntrl0Reg | 0x00300000);		dst = malloc(CFG_FPGA_MAX_SIZE);		if (gunzip (dst, CFG_FPGA_MAX_SIZE, (uchar *)fpgadata, (int *)&len) != 0) {			printf ("GUNZIP ERROR - must RESET board to recover\n");			do_reset (NULL, 0, 0, NULL);		}		status = fpga_boot(dst, len);		if (status != 0) {			printf("\nFPGA: Booting failed ");			switch (status) {			case ERROR_FPGA_PRG_INIT_LOW:				printf("(Timeout: INIT not low after asserting PROGRAM*)\n ");				break;			case ERROR_FPGA_PRG_INIT_HIGH:				printf("(Timeout: INIT not high after deasserting PROGRAM*)\n ");				break;			case ERROR_FPGA_PRG_DONE:				printf("(Timeout: DONE not high after programming FPGA)\n ");				break;			}			/* display infos on fpgaimage */			index = 15;			for (i=0; i<4; i++) {				len = dst[index];				printf("FPGA: %s\n", &(dst[index+1]));				index += len+3;			}			putc ('\n');			/* delayed reboot */			for (i=20; i>0; i--) {				printf("Rebooting in %2d seconds \r",i);				for (index=0;index<1000;index++)					udelay(1000);			}			putc ('\n');			do_reset(NULL, 0, 0, NULL);		}		/* restore gpio/cs settings */		mtdcr(cntrl0, cntrl0Reg);		puts("FPGA:  ");		/* display infos on fpgaimage */		index = 15;		for (i=0; i<4; i++) {			len = dst[index];			printf("%s ", &(dst[index+1]));			index += len+3;		}		putc ('\n');		free(dst);		/*		 * Reset FPGA via FPGA_DATA pin		 */		SET_FPGA(FPGA_PRG | FPGA_CLK);		udelay(1000); /* wait 1ms */		SET_FPGA(FPGA_PRG | FPGA_CLK | FPGA_DATA);		udelay(1000); /* wait 1ms */		if (cpci405_version() == 3) {			volatile unsigned short *fpga_mode = (unsigned short *)CFG_FPGA_BASE_ADDR;			volatile unsigned char *leds = (unsigned char *)CFG_LED_ADDR;			/*			 * Enable outputs in fpga on version 3 board			 */			*fpga_mode |= CFG_FPGA_MODE_ENABLE_OUTPUT;			/*			 * Set outputs to 0			 */			*leds = 0x00;			/*			 * Reset external DUART			 */			*fpga_mode |= CFG_FPGA_MODE_DUART_RESET;			udelay(100);			*fpga_mode &= ~(CFG_FPGA_MODE_DUART_RESET);		}	}	else {		puts("\n*** U-Boot Version does not match Board Version!\n");		puts("*** CPCI-405 Version 1.x detected!\n");		puts("*** Please use correct U-Boot version (CPCI405 instead of CPCI4052)!\n\n");	}#else /* CONFIG_CPCI405_VER2 */	/*	 * Generate last byte of ip-addr from code-plug @ 0xf0000400	 */	if (ctermm2()) {		char str[32];		unsigned char ipbyte = *(unsigned char *)0xf0000400;		/*		 * Only overwrite ip-addr with allowed values		 */		if ((ipbyte != 0x00) && (ipbyte != 0xff)) {			bd->bi_ip_addr = (bd->bi_ip_addr & 0xffffff00) | ipbyte;			sprintf(str, "%ld.%ld.%ld.%ld",				(bd->bi_ip_addr & 0xff000000) >> 24,				(bd->bi_ip_addr & 0x00ff0000) >> 16,				(bd->bi_ip_addr & 0x0000ff00) >> 8,				(bd->bi_ip_addr & 0x000000ff));			setenv("ipaddr", str);		}	}	if (cpci405_version() >= 2) {		puts("\n*** U-Boot Version does not match Board Version!\n");		puts("*** CPCI-405 Board Version 2.x detected!\n");		puts("*** Please use correct U-Boot version (CPCI4052 instead of CPCI405)!\n\n");	}#endif /* CONFIG_CPCI405_VER2 */	/*	 * Select cts (and not dsr) on uart1	 */	cntrl0Reg = mfdcr(cntrl0);	mtdcr(cntrl0, cntrl0Reg | 0x00001000);	/*	 * Write ethernet addr in NVRAM for VxWorks	 */	tmp = (char *)CFG_NVRAM_BASE_ADDR + CFG_NVRAM_VXWORKS_OFFS;	memcpy( (char *)tmp, (char *)&bd->bi_enetaddr[0], 6 );	return (0);}/* * Check Board Identity: */int checkboard (void){#ifndef CONFIG_CPCI405_VER2	int index;	int len;#endif	unsigned char str[64];	int i = getenv_r ("serial#", str, sizeof(str));	unsigned short ver;	puts ("Board: ");	if (i == -1) {		puts ("### No HW ID - assuming CPCI405");	} else {		puts(str);	}	ver = cpci405_version();	printf(" (Ver %d.x, ", ver);#if 0 /* test-only */	if (ver >= 2) {		volatile u16 *fpga_status = (u16 *)CFG_FPGA_BASE_ADDR + 1;		if (*fpga_status & CFG_FPGA_STATUS_FLASH) {			puts ("FLASH Bank B, ");		} else {			puts ("FLASH Bank A, ");		}	}#endif	if (ctermm2()) {		unsigned char str[4];		/*		 * Read board-id and save in env-variable		 */		sprintf(str, "%d", *(unsigned char *)0xf0000400);		setenv("boardid", str);		printf("CTERM-M2 - Id=%s)", str);	} else {		if (cpci405_host()) {			puts ("PCI Host Version)");		} else {			puts ("PCI Adapter Version)");		}	}#ifndef CONFIG_CPCI405_VER2	puts ("\nFPGA:  ");	/* display infos on fpgaimage */	index = 15;	for (i=0; i<4; i++) {		len = fpgadata[index];		printf("%s ", &(fpgadata[index+1]));		index += len+3;	}#endif	putc ('\n');	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);}/* ------------------------------------------------------------------------- */#ifdef CONFIG_CPCI405_VER2#ifdef CONFIG_IDE_RESETvoid ide_set_reset(int on){	volatile unsigned short *fpga_mode = (unsigned short *)CFG_FPGA_BASE_ADDR;	/*	 * Assert or deassert CompactFlash Reset Pin	 */	if (on) {		/* assert RESET */		*fpga_mode &= ~(CFG_FPGA_MODE_CF_RESET);	} else {		/* release RESET */		*fpga_mode |= CFG_FPGA_MODE_CF_RESET;	}}#endif /* CONFIG_IDE_RESET */#endif /* CONFIG_CPCI405_VER2 */#ifdef CONFIG_CPCI405AB#define ONE_WIRE_CLEAR   (*(volatile unsigned short *)0xf0400000 |= 0x0100)#define ONE_WIRE_SET     (*(volatile unsigned short *)0xf0400000 &= ~0x0100)#define ONE_WIRE_GET     (*(volatile unsigned short *)0xf0400002 & 0x1000)/* * Generate a 1-wire reset, return 1 if no presence detect was found, * return 0 otherwise. * (NOTE: Does not handle alarm presence from DS2404/DS1994) */int OWTouchReset(void){	int result;	ONE_WIRE_CLEAR;	udelay(480);	ONE_WIRE_SET;	udelay(70);	result = ONE_WIRE_GET;	udelay(410);	return result;}/* * Send 1 a 1-wire write bit. * Provide 10us recovery time. */void OWWriteBit(int bit){	if (bit) {		/*		 * write '1' bit		 */		ONE_WIRE_CLEAR;		udelay(6);		ONE_WIRE_SET;		udelay(64);	} else {		/*		 * write '0' bit		 */		ONE_WIRE_CLEAR;		udelay(60);		ONE_WIRE_SET;		udelay(10);	}}/* * Read a bit from the 1-wire bus and return it. * Provide 10us recovery time. */int OWReadBit(void){	int result;	ONE_WIRE_CLEAR;	udelay(6);	ONE_WIRE_SET;	udelay(9);	result = ONE_WIRE_GET;	udelay(55);	return result;}void OWWriteByte(int data){	int loop;	for (loop=0; loop<8; loop++) {		OWWriteBit(data & 0x01);		data >>= 1;	}}int OWReadByte(void){	int loop, result = 0;	for (loop=0; loop<8; loop++) {		result >>= 1;		if (OWReadBit()) {			result |= 0x80;		}	}	return result;}int do_onewire(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]){	volatile unsigned short val;	int result;	int i;	unsigned char ow_id[6];	unsigned char str[32];	unsigned char ow_crc;	/*	 * Clear 1-wire bit (open drain with pull-up)	 */	val = *(volatile unsigned short *)0xf0400000;	val &= ~0x1000; /* clear 1-wire bit */	*(volatile unsigned short *)0xf0400000 = val;	result = OWTouchReset();	if (result != 0) {		puts("No 1-wire device detected!\n");	}	OWWriteByte(0x33); /* send read rom command */	OWReadByte(); /* skip family code ( == 0x01) */	for (i=0; i<6; i++) {		ow_id[i] = OWReadByte();	}	ow_crc = OWReadByte(); /* read crc */	sprintf(str, "%08X%04X", *(unsigned int *)&ow_id[0], *(unsigned short *)&ow_id[4]);	printf("Setting environment variable 'ow_id' to %s\n", str);	setenv("ow_id", str);	return 0;}U_BOOT_CMD(	onewire,	1,	1,	do_onewire,	"onewire - Read 1-write ID\n",	NULL	);#endif /* CONFIG_CPCI405AB */