/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * 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 <405gp_i2c.h>#include <command.h>#include <rtc.h>#include <post.h>#include <net.h>#include <malloc.h>#define L1_MEMSIZE (32*1024*1024)/* the std. DHCP stufff */#define DHCP_ROUTER       3#define DHCP_NETMASK      1#define DHCP_BOOTFILE     67#define DHCP_ROOTPATH     17#define DHCP_HOSTNAME     12/* some extras used by CRAY * * on the server this looks like: * * option L1-initrd-image code 224 = string; * option L1-initrd-image "/opt/craysv2/craymcu/l1/flash/initrd.image" */#define DHCP_L1_INITRD  224/* new, [better?] way via official vendor-extensions, defining an option * space. * on the server this looks like: * * option space CRAYL1; * option CRAYL1.initrd     code 3 = string; * ..etc... */#define DHCP_VENDOR_SPECX   43#define DHCP_VX_INITRD       3#define DHCP_VX_BOOTCMD      4#define DHCP_VX_BOOTARGS     5#define DHCP_VX_ROOTDEV      6#define DHCP_VX_FROMFLASH    7#define DHCP_VX_BOOTSCRIPT   8#define DHCP_VX_RCFILE	     9#define DHCP_VX_MAGIC        10/* Things DHCP server can tellme about.  If there's no flash address, then * they dont participate in 'update' to flash, and we force their values * back to '0' every boot to be sure to get them fresh from DHCP.  Yes, I * know this is a pain... * * If I get no bootfile, boot from flash.  If rootpath, use that.  If no * rootpath use initrd in flash. */typedef struct dhcp_item_s {	u8 dhcp_option;	u8 dhcp_vendor_option;	char *dhcpvalue;	char *envname;} dhcp_item_t;static dhcp_item_t Things[] = {	{DHCP_ROUTER, 0, NULL, "gateway"},	{DHCP_NETMASK, 0, NULL, "netmask"},	{DHCP_BOOTFILE, 0, NULL, "bootfile"},	{DHCP_ROOTPATH, 0, NULL, "rootpath"},	{DHCP_HOSTNAME, 0, NULL, "hostname"},	{DHCP_L1_INITRD, 0, NULL, "initrd"},/* and the other way.. */	{DHCP_VENDOR_SPECX, DHCP_VX_INITRD, NULL, "initrd"},	{DHCP_VENDOR_SPECX, DHCP_VX_BOOTCMD, NULL, "bootcmd"},	{DHCP_VENDOR_SPECX, DHCP_VX_FROMFLASH, NULL, "fromflash"},	{DHCP_VENDOR_SPECX, DHCP_VX_BOOTSCRIPT, NULL, "bootscript"},	{DHCP_VENDOR_SPECX, DHCP_VX_RCFILE, NULL, "rcfile"},	{DHCP_VENDOR_SPECX, DHCP_VX_BOOTARGS, NULL, "xbootargs"},	{DHCP_VENDOR_SPECX, DHCP_VX_ROOTDEV, NULL, NULL},	{DHCP_VENDOR_SPECX, DHCP_VX_MAGIC, NULL, NULL}};#define N_THINGS ((sizeof(Things))/(sizeof(dhcp_item_t)))extern char bootscript[];/* Here is the boot logic as HUSH script. Overridden by any TFP provided * bootscript file. */static void init_sdram (void);/* ------------------------------------------------------------------------- */int board_pre_init (void){	/* Running from ROM: global data is still READONLY */	init_sdram ();	mtdcr (uicsr, 0xFFFFFFFF);	/* clear all ints */	mtdcr (uicer, 0x00000000);	/* disable all ints */	mtdcr (uiccr, 0x00000020);	/* set all but FPGA SMI to be non-critical */	mtdcr (uicpr, 0xFFFFFFE0);	/* 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 checkboard (void){	return (0);}/* ------------------------------------------------------------------------- *//* ------------------------------------------------------------------------- */int misc_init_r (void){	unsigned char *s, *e;	image_header_t *hdr;	time_t timestamp;	struct rtc_time tm;	char bootcmd[32];	hdr = (image_header_t *) (CFG_MONITOR_BASE - sizeof (image_header_t));	timestamp = (time_t) hdr->ih_time;	to_tm (timestamp, &tm);	printf ("Welcome to U-Boot on Cray L1. Compiled %4d-%02d-%02d  %2d:%02d:%02d (UTC)\n", tm.tm_year, tm.tm_mon, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);#define FACTORY_SETTINGS 0xFFFC0000	if ((s = getenv ("ethaddr")) == NULL) {		e = (unsigned char *) (FACTORY_SETTINGS);		if (*(e + 0) != '0'			|| *(e + 1) != '0'			|| *(e + 2) != ':'			|| *(e + 3) != '4' || *(e + 4) != '0' || *(e + 17) != '\0') {			printf ("No valid MAC address in flash location 0x3C0000!\n");		} else {			printf ("Factory MAC: %s\n", e);			setenv ("ethaddr", e);		}	}	sprintf (bootcmd,"autoscript %X",(unsigned)bootscript);	setenv ("bootcmd", bootcmd);	return (0);}/* ------------------------------------------------------------------------- */long int initdram (int board_type){	return (L1_MEMSIZE);}/* ------------------------------------------------------------------------- *//* stubs so we can print dates w/o any nvram RTC.*/void rtc_get (struct rtc_time *tmp){	return;}void rtc_set (struct rtc_time *tmp){	return;}void rtc_reset (void){	return;}/* ------------------------------------------------------------------------- *//*  Do sdram bank init in C so I can read it..no console to print to yet! */static void init_sdram (void){ unsigned long tmp;	/* write SDRAM bank 0 register */	mtdcr (memcfga, mem_mb0cf);	mtdcr (memcfgd, 0x00062001);/* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR.	*//* To set the appropriate timings, we need to know the SDRAM speed.	*//* We can use the PLB speed since the SDRAM speed is the same as	*//* the PLB speed. The PLB speed is the FBK divider times the		*//* 405GP reference clock, which on the L1 is 25Mhz.			*//* Thus, if FBK div is 2, SDRAM is 50Mhz; if FBK div is 3, SDRAM is	*//* 150Mhz; if FBK is 3, SDRAM is 150Mhz.				*/	/* divisor = ((mfdcr(strap)>> 28) & 0x3); *//* write SDRAM timing for 100Mhz. */	mtdcr (memcfga, mem_sdtr1);	mtdcr (memcfgd, 0x0086400D);/* write SDRAM refresh interval register */	mtdcr (memcfga, mem_rtr);	mtdcr (memcfgd, 0x05F00000);	udelay (200);/* sdram controller.*/	mtdcr (memcfga, mem_mcopt1);	mtdcr (memcfgd, 0x90800000);	udelay (200);/* initially, disable ECC on all banks */	udelay (200);	mtdcr (memcfga, mem_ecccf);	tmp = mfdcr (memcfgd);	tmp &= 0xff0fffff;	mtdcr (memcfga, mem_ecccf);	mtdcr (memcfgd, tmp);	return;}extern int memory_post_test (int flags);int testdram (void){ unsigned long tmp;	uint *pstart = (uint *) 0x00000000;	uint *pend = (uint *) L1_MEMSIZE;	uint *p;	if (getenv_r("booted",NULL,0) <= 0)	{		printf ("testdram..");	/*AA*/		for (p = pstart; p < pend; p++)			*p = 0xaaaaaaaa;		for (p = pstart; p < pend; p++) {			if (*p != 0xaaaaaaaa) {				printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",						(uint) p, *p, 0xaaaaaaaa);				return 1;			}		}	/*55*/		for (p = pstart; p < pend; p++)			*p = 0x55555555;		for (p = pstart; p < pend; p++) {			if (*p != 0x55555555) {				printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",						(uint) p, *p, 0x55555555);				return 1;			}		}	/*addr*/		for (p = pstart; p < pend; p++)			*p = (unsigned)p;		for (p = pstart; p < pend; p++) {			if (*p != (unsigned)p) {				printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",						(uint) p, *p, (uint)p);				return 1;			}		}		printf ("Success. ");	}	printf ("Enable ECC..");	mtdcr (memcfga, mem_mcopt1);	tmp = (mfdcr (memcfgd) & ~0xFFE00000) | 0x90800000;	mtdcr (memcfga, mem_mcopt1);	mtdcr (memcfgd, tmp);	udelay (600);	for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L)		;	udelay (400);	mtdcr (memcfga, mem_ecccf);	tmp = mfdcr (memcfgd);	tmp |= 0x00800000;	mtdcr (memcfgd, tmp);	udelay (400);	printf ("enabled.\n");	return (0);}/* ------------------------------------------------------------------------- */static u8 *dhcp_env_update (u8 thing, u8 * pop){	u8 i, oplen;	oplen = *(pop + 1);	if ((Things[thing].dhcpvalue = malloc (oplen)) == NULL) {		printf ("Whoops! failed to malloc space for DHCP thing %s\n",				Things[thing].envname);		return NULL;	}	for (i = 0; (i < oplen); i++)		if ((*(Things[thing].dhcpvalue + i) = *(pop + 2 + i)) == ' ')			break;	*(Things[thing].dhcpvalue + i) = '\0';/* set env. */	if (Things[thing].envname)	{		setenv (Things[thing].envname, Things[thing].dhcpvalue);	}	return (Things[thing].dhcpvalue);}/* ------------------------------------------------------------------------- */u8 *dhcp_vendorex_prep (u8 * e){	u8 thing;/* ask for the things I want. */	*e++ = 55;					/* Parameter Request List */	*e++ = N_THINGS;	for (thing = 0; thing < N_THINGS; thing++)		*e++ = Things[thing].dhcp_option;	*e++ = 255;	return e;}/* ------------------------------------------------------------------------- *//* .. return NULL means it wasnt mine, non-null means I got it..*/u8 *dhcp_vendorex_proc (u8 * pop){	u8 oplen, *sub_op, sub_oplen, *retval;	u8 thing = 0;	retval = NULL;	oplen = *(pop + 1);/* if pop is vender spec indicator, there are sub-options. */	if (*pop == DHCP_VENDOR_SPECX) {		for (sub_op = pop + 2;		     oplen && (sub_oplen = *(sub_op + 1));		     oplen -= sub_oplen, sub_op += (sub_oplen + 2)) {			for (thing = 0; thing < N_THINGS; thing++) {			    if (*sub_op == Things[thing].dhcp_vendor_option) {					if (!(retval = dhcp_env_update (thing, sub_op))) {						return NULL;					}			    }			}		}	} else {		for (thing = 0; thing < N_THINGS; thing++) {			if (*pop == Things[thing].dhcp_option)				if (!(retval = dhcp_env_update (thing, pop)))					return NULL;		}	}	return (pop);}