/* * (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>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 = in32(GPIO0_OSRH);	isr1l_reg = in32(GPIO0_ISR1H);	tcr_reg = in32(GPIO0_TCR);	out32(GPIO0_OSRH, osrl_reg & ~0x00030000);     /* output select */	out32(GPIO0_ISR1H, isr1l_reg | 0x00030000);    /* input select  */	out32(GPIO0_TCR, tcr_reg & ~0x00000100);       /* select input  */	udelay(1000);            /* wait some time before reading input */	value = in32(GPIO0_IR) & 0x00000100;         /* get config bits */	/*	 * Restore GPIO settings	 */	out32(GPIO0_OSRH, osrl_reg);                   /* output select */	out32(GPIO0_ISR1H, isr1l_reg);                 /* input select  */	out32(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 (epcr, 0xa8400000); /* ebc always driven */	return 0;}int misc_init_f (void){	return 0;  /* dummy implementation */}int misc_init_r (void){	volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4);	volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4);	volatile unsigned char *duart2_mcr = (unsigned char *)((ulong)DUART2_BA + 4);	volatile unsigned char *duart3_mcr = (unsigned char *)((ulong)DUART3_BA + 4);	volatile unsigned char *led_reg    = (unsigned char *)((ulong)DUART0_BA + 0x20);	unsigned long val;	int delay, flashcnt;	char *str;	char hw_rev[4];	/*	 * Enable interrupts in exar duart mcr[3]	 */	*duart0_mcr = 0x08;	*duart1_mcr = 0x08;	*duart2_mcr = 0x08;	*duart3_mcr = 0x08;	/*	 * Set RS232/RS422 control (RS232 = high on GPIO)	 */	val = in32(GPIO0_OR);	val &= ~(CFG_UART2_RS232 | CFG_UART3_RS232 | CFG_UART4_RS232 | CFG_UART5_RS232);	str = getenv("phys0");	if (!str || (str && (str[0] == '0')))		val |= CFG_UART2_RS232;	str = getenv("phys1");	if (!str || (str && (str[0] == '0')))		val |= CFG_UART3_RS232;	str = getenv("phys2");	if (!str || (str && (str[0] == '0')))		val |= CFG_UART4_RS232;	str = getenv("phys3");	if (!str || (str && (str[0] == '0')))		val |= CFG_UART5_RS232;	out32(GPIO0_OR, val);	/*	 * Set NAND-FLASH GPIO signals to default	 */	out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE));	out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE);	/*	 * 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_reg = led_reg_default;        /* LED_A..D off */				for (delay = 0; delay < 100; delay++)					udelay(1000);				*led_reg = led_reg_default | 0xf0; /* LED_A..D on */				for (delay = 0; delay < 50; delay++)					udelay(1000);			}			*led_reg = led_reg_default;		}	}	/*	 * Reset external DUARTs	 */	out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */	udelay(10); /* wait 10us */	out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_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;}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);}#if (CONFIG_COMMANDS & CFG_CMD_NAND)#include <linux/mtd/nand_legacy.h>extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE];void nand_init(void){	nand_probe(CFG_NAND_BASE);	if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {		print_size(nand_dev_desc[0].totlen, "\n");	}}#endif