/* * (C) Copyright 2001 * 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 <cmd_boot.h>#include <malloc.h>#include <pci.h>#include <405gp_pci.h>/* ------------------------------------------------------------------------- */#if 0#define FPGA_DEBUG#endif#define PCI_RECONFIG_MAGIC       0x07081967struct pci_config_regs {	unsigned short  command;	unsigned char   latency_timer;	unsigned char   int_line;	unsigned long   bar1;	unsigned long   bar2;	unsigned long   magic;};/* fpga configuration data - generated by bin2cc */const unsigned char fpgadata[] ={#include "fpgadata.c"};/* * include common fpga code (for esd boards) */#include "../common/fpga.c"/* Prototypes */int gunzip(void *, int, unsigned char *, int *);int board_pre_init (void){	unsigned long cntrl0Reg;	/*	 * 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; active low; level sensitive	 * IRQ 27 (EXT IRQ 2) CAN2; active low; level sensitive	 * IRQ 28 (EXT IRQ 3) CAN3; active low; level sensitive	 * IRQ 29 (EXT IRQ 4) unused; active low; level sensitive	 * IRQ 30 (EXT IRQ 5) FPGA Timestamp; active low; level sensitive	 * IRQ 31 (EXT IRQ 6) PCI Reset; active low; 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, 0xFFFFFF80);        /* 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 */	/*	 * Setup GPIO pins (IRQ4/GPIO21 as GPIO)	 */	cntrl0Reg = mfdcr(cntrl0);	mtdcr(cntrl0, cntrl0Reg | 0x00008000);	return 0;}/* ------------------------------------------------------------------------- */int misc_init_f (void){	return 0;  /* dummy implementation */}int misc_init_r (void){	unsigned char *dst;	ulong len = sizeof(fpgadata);	int status;	int index;	int i;	struct pci_config_regs *pci_regs;	/*	 * On PCI-405 the environment is saved in eeprom!	 * FPGA can be gzip compressed (malloc) and booted this late.	 */	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);	}	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');	/*	 * Rewrite pci config regs (only after soft-reset with magic set)	 */	pci_regs = (struct pci_config_regs *)0x10;	if (pci_regs->magic == PCI_RECONFIG_MAGIC) {		puts("PCI:   Found magic, rewriting config regs...\n");		pci_write_config_word(PCIDEVID_405GP, PCI_COMMAND,				      pci_regs->command);		pci_write_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER,				      pci_regs->latency_timer);		pci_write_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE,				      pci_regs->int_line);		pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1,				       pci_regs->bar1);		pci_write_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2,				       pci_regs->bar2);	}	pci_regs->magic = 0; /* clear magic again */#if 0 /* test-only */	pci_read_config_word(PCIDEVID_405GP, PCI_COMMAND, &(pci_regs->command));	pci_read_config_byte(PCIDEVID_405GP, PCI_LATENCY_TIMER, &(pci_regs->latency_timer));	pci_read_config_byte(PCIDEVID_405GP, PCI_INTERRUPT_LINE, &(pci_regs->int_line));	pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_1, &(pci_regs->bar1));	pci_read_config_dword(PCIDEVID_405GP, PCI_BASE_ADDRESS_2, &(pci_regs->bar2));	pci_regs->magic = PCI_RECONFIG_MAGIC; /* set magic */#endif	free(dst);	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 CPCI405");	} else {		puts (str);	}	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);}/* ------------------------------------------------------------------------- */