3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/processor.h>
33 #define L1_MEMSIZE (32*1024*1024)
35 /* the std. DHCP stufff */
37 #define DHCP_NETMASK 1
38 #define DHCP_BOOTFILE 67
39 #define DHCP_ROOTPATH 17
40 #define DHCP_HOSTNAME 12
42 /* some extras used by CRAY
44 * on the server this looks like:
46 * option L1-initrd-image code 224 = string;
47 * option L1-initrd-image "/opt/craysv2/craymcu/l1/flash/initrd.image"
49 #define DHCP_L1_INITRD 224
51 /* new, [better?] way via official vendor-extensions, defining an option
53 * on the server this looks like:
55 * option space CRAYL1;
56 * option CRAYL1.initrd code 3 = string;
59 #define DHCP_VENDOR_SPECX 43
60 #define DHCP_VX_INITRD 3
61 #define DHCP_VX_BOOTCMD 4
62 #define DHCP_VX_BOOTARGS 5
63 #define DHCP_VX_ROOTDEV 6
64 #define DHCP_VX_FROMFLASH 7
65 #define DHCP_VX_BOOTSCRIPT 8
66 #define DHCP_VX_RCFILE 9
67 #define DHCP_VX_MAGIC 10
69 /* Things DHCP server can tellme about. If there's no flash address, then
70 * they dont participate in 'update' to flash, and we force their values
71 * back to '0' every boot to be sure to get them fresh from DHCP. Yes, I
72 * know this is a pain...
74 * If I get no bootfile, boot from flash. If rootpath, use that. If no
75 * rootpath use initrd in flash.
77 typedef struct dhcp_item_s {
79 u8 dhcp_vendor_option;
83 static dhcp_item_t Things[] = {
84 {DHCP_ROUTER, 0, NULL, "gateway"},
85 {DHCP_NETMASK, 0, NULL, "netmask"},
86 {DHCP_BOOTFILE, 0, NULL, "bootfile"},
87 {DHCP_ROOTPATH, 0, NULL, "rootpath"},
88 {DHCP_HOSTNAME, 0, NULL, "hostname"},
89 {DHCP_L1_INITRD, 0, NULL, "initrd"},
90 /* and the other way.. */
91 {DHCP_VENDOR_SPECX, DHCP_VX_INITRD, NULL, "initrd"},
92 {DHCP_VENDOR_SPECX, DHCP_VX_BOOTCMD, NULL, "bootcmd"},
93 {DHCP_VENDOR_SPECX, DHCP_VX_FROMFLASH, NULL, "fromflash"},
94 {DHCP_VENDOR_SPECX, DHCP_VX_BOOTSCRIPT, NULL, "bootscript"},
95 {DHCP_VENDOR_SPECX, DHCP_VX_RCFILE, NULL, "rcfile"},
96 {DHCP_VENDOR_SPECX, DHCP_VX_BOOTARGS, NULL, "xbootargs"},
97 {DHCP_VENDOR_SPECX, DHCP_VX_ROOTDEV, NULL, NULL},
98 {DHCP_VENDOR_SPECX, DHCP_VX_MAGIC, NULL, NULL}
101 #define N_THINGS ((sizeof(Things))/(sizeof(dhcp_item_t)))
103 extern char bootscript[];
105 /* Here is the boot logic as HUSH script. Overridden by any TFP provided
109 static void init_sdram (void);
111 /* ------------------------------------------------------------------------- */
112 int board_early_init_f (void)
114 /* Running from ROM: global data is still READONLY */
116 mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
117 mtdcr (uicer, 0x00000000); /* disable all ints */
118 mtdcr (uiccr, 0x00000020); /* set all but FPGA SMI to be non-critical */
119 mtdcr (uicpr, 0xFFFFFFE0); /* set int polarities */
120 mtdcr (uictr, 0x10000000); /* set int trigger levels */
121 mtdcr (uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
122 mtdcr (uicsr, 0xFFFFFFFF); /* clear all ints */
126 /* ------------------------------------------------------------------------- */
127 int checkboard (void)
131 /* ------------------------------------------------------------------------- */
133 /* ------------------------------------------------------------------------- */
134 int misc_init_r (void)
142 hdr = (image_header_t *) (CFG_MONITOR_BASE - sizeof (image_header_t));
143 timestamp = (time_t) hdr->ih_time;
144 to_tm (timestamp, &tm);
145 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);
147 #define FACTORY_SETTINGS 0xFFFC0000
148 if ((s = getenv ("ethaddr")) == NULL) {
149 e = (char *) (FACTORY_SETTINGS);
153 || *(e + 3) != '4' || *(e + 4) != '0' || *(e + 17) != '\0') {
154 printf ("No valid MAC address in flash location 0x3C0000!\n");
156 printf ("Factory MAC: %s\n", e);
157 setenv ("ethaddr", e);
160 sprintf (bootcmd,"autoscript %X",(unsigned)bootscript);
161 setenv ("bootcmd", bootcmd);
165 /* ------------------------------------------------------------------------- */
166 long int initdram (int board_type)
171 /* ------------------------------------------------------------------------- */
172 /* stubs so we can print dates w/o any nvram RTC.*/
173 int rtc_get (struct rtc_time *tmp)
177 void rtc_set (struct rtc_time *tmp)
181 void rtc_reset (void)
186 /* ------------------------------------------------------------------------- */
187 /* Do sdram bank init in C so I can read it..no console to print to yet!
189 static void init_sdram (void)
193 /* write SDRAM bank 0 register */
194 mtdcr (memcfga, mem_mb0cf);
195 mtdcr (memcfgd, 0x00062001);
197 /* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR. */
198 /* To set the appropriate timings, we need to know the SDRAM speed. */
199 /* We can use the PLB speed since the SDRAM speed is the same as */
200 /* the PLB speed. The PLB speed is the FBK divider times the */
201 /* 405GP reference clock, which on the L1 is 25Mhz. */
202 /* Thus, if FBK div is 2, SDRAM is 50Mhz; if FBK div is 3, SDRAM is */
203 /* 150Mhz; if FBK is 3, SDRAM is 150Mhz. */
205 /* divisor = ((mfdcr(strap)>> 28) & 0x3); */
207 /* write SDRAM timing for 100Mhz. */
208 mtdcr (memcfga, mem_sdtr1);
209 mtdcr (memcfgd, 0x0086400D);
211 /* write SDRAM refresh interval register */
212 mtdcr (memcfga, mem_rtr);
213 mtdcr (memcfgd, 0x05F00000);
216 /* sdram controller.*/
217 mtdcr (memcfga, mem_mcopt1);
218 mtdcr (memcfgd, 0x90800000);
221 /* initially, disable ECC on all banks */
223 mtdcr (memcfga, mem_ecccf);
224 tmp = mfdcr (memcfgd);
226 mtdcr (memcfga, mem_ecccf);
227 mtdcr (memcfgd, tmp);
232 extern int memory_post_test (int flags);
237 uint *pstart = (uint *) 0x00000000;
238 uint *pend = (uint *) L1_MEMSIZE;
241 if (getenv_r("booted",NULL,0) <= 0)
243 printf ("testdram..");
245 for (p = pstart; p < pend; p++)
247 for (p = pstart; p < pend; p++) {
248 if (*p != 0xaaaaaaaa) {
249 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
250 (uint) p, *p, 0xaaaaaaaa);
255 for (p = pstart; p < pend; p++)
257 for (p = pstart; p < pend; p++) {
258 if (*p != 0x55555555) {
259 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
260 (uint) p, *p, 0x55555555);
265 for (p = pstart; p < pend; p++)
267 for (p = pstart; p < pend; p++) {
268 if (*p != (unsigned)p) {
269 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
270 (uint) p, *p, (uint)p);
274 printf ("Success. ");
276 printf ("Enable ECC..");
278 mtdcr (memcfga, mem_mcopt1);
279 tmp = (mfdcr (memcfgd) & ~0xFFE00000) | 0x90800000;
280 mtdcr (memcfga, mem_mcopt1);
281 mtdcr (memcfgd, tmp);
283 for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L)
286 mtdcr (memcfga, mem_ecccf);
287 tmp = mfdcr (memcfgd);
289 mtdcr (memcfgd, tmp);
291 printf ("enabled.\n");
295 /* ------------------------------------------------------------------------- */
296 static u8 *dhcp_env_update (u8 thing, u8 * pop)
302 if ((Things[thing].dhcpvalue = malloc (oplen)) == NULL) {
303 printf ("Whoops! failed to malloc space for DHCP thing %s\n",
304 Things[thing].envname);
307 for (i = 0; (i < oplen); i++)
308 if ((*(Things[thing].dhcpvalue + i) = *(pop + 2 + i)) == ' ')
310 *(Things[thing].dhcpvalue + i) = '\0';
313 if (Things[thing].envname)
315 setenv (Things[thing].envname, Things[thing].dhcpvalue);
317 return ((u8 *)(Things[thing].dhcpvalue));
320 /* ------------------------------------------------------------------------- */
321 u8 *dhcp_vendorex_prep (u8 * e)
325 /* ask for the things I want. */
326 *e++ = 55; /* Parameter Request List */
328 for (thing = 0; thing < N_THINGS; thing++)
329 *e++ = Things[thing].dhcp_option;
335 /* ------------------------------------------------------------------------- */
336 /* .. return NULL means it wasnt mine, non-null means I got it..*/
337 u8 *dhcp_vendorex_proc (u8 * pop)
339 u8 oplen, *sub_op, sub_oplen, *retval;
344 /* if pop is vender spec indicator, there are sub-options. */
345 if (*pop == DHCP_VENDOR_SPECX) {
346 for (sub_op = pop + 2;
347 oplen && (sub_oplen = *(sub_op + 1));
348 oplen -= sub_oplen, sub_op += (sub_oplen + 2)) {
349 for (thing = 0; thing < N_THINGS; thing++) {
350 if (*sub_op == Things[thing].dhcp_vendor_option) {
351 if (!(retval = dhcp_env_update (thing, sub_op))) {
358 for (thing = 0; thing < N_THINGS; thing++) {
359 if (*pop == Things[thing].dhcp_option)
360 if (!(retval = dhcp_env_update (thing, pop)))