/* * (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 <asm/ppc4xx-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_early_init_f (void) { /* Running from ROM: global data is still READONLY */ init_sdram (); mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ mtdcr (UIC0ER, 0x00000000); /* disable all ints */ mtdcr (UIC0CR, 0x00000020); /* set all but FPGA SMI to be non-critical */ mtdcr (UIC0PR, 0xFFFFFFE0); /* set int polarities */ mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */ mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */ mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */ return 0; } /* ------------------------------------------------------------------------- */ int checkboard (void) { return (0); } /* ------------------------------------------------------------------------- */ /* ------------------------------------------------------------------------- */ int misc_init_r (void) { char *s, *e; image_header_t *hdr; time_t timestamp; struct rtc_time tm; char bootcmd[32]; hdr = (image_header_t *) (CONFIG_SYS_MONITOR_BASE - image_get_header_size ()); #if defined(CONFIG_FIT) if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) { puts ("Non legacy image format not supported\n"); return -1; } #endif timestamp = (time_t)image_get_time (hdr); 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 = (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,"source %X",(unsigned)bootscript); setenv ("bootcmd", bootcmd); return (0); } /* ------------------------------------------------------------------------- */ /* stubs so we can print dates w/o any nvram RTC.*/ int rtc_get (struct rtc_time *tmp) { return 0; } int rtc_set (struct rtc_time *tmp) { return 0; } 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 (SDRAM0_CFGADDR, SDRAM0_B0CR); mtdcr (SDRAM0_CFGDATA, 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 (SDRAM0_CFGADDR, SDRAM0_TR); mtdcr (SDRAM0_CFGDATA, 0x0086400D); /* write SDRAM refresh interval register */ mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR); mtdcr (SDRAM0_CFGDATA, 0x05F00000); udelay (200); /* sdram controller.*/ mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG); mtdcr (SDRAM0_CFGDATA, 0x90800000); udelay (200); /* initially, disable ECC on all banks */ udelay (200); mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG); tmp = mfdcr (SDRAM0_CFGDATA); tmp &= 0xff0fffff; mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG); mtdcr (SDRAM0_CFGDATA, 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_f("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 (SDRAM0_CFGADDR, SDRAM0_CFG); tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x90800000; mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG); mtdcr (SDRAM0_CFGDATA, tmp); udelay (600); for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L) ; udelay (400); mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG); tmp = mfdcr (SDRAM0_CFGDATA); tmp |= 0x00800000; mtdcr (SDRAM0_CFGDATA, 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 ((u8 *)(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); }