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>
26 #include <asm/ppc4xx-i2c.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 (UIC0SR, 0xFFFFFFFF); /* clear all ints */
117 mtdcr (UIC0ER, 0x00000000); /* disable all ints */
118 mtdcr (UIC0CR, 0x00000020); /* set all but FPGA SMI to be non-critical */
119 mtdcr (UIC0PR, 0xFFFFFFE0); /* set int polarities */
120 mtdcr (UIC0TR, 0x10000000); /* set int trigger levels */
121 mtdcr (UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
122 mtdcr (UIC0SR, 0xFFFFFFFF); /* clear all ints */
126 /* ------------------------------------------------------------------------- */
127 int checkboard (void)
131 /* ------------------------------------------------------------------------- */
133 /* ------------------------------------------------------------------------- */
134 int misc_init_r (void)
142 hdr = (image_header_t *) (CONFIG_SYS_MONITOR_BASE - image_get_header_size ());
143 #if defined(CONFIG_FIT)
144 if (genimg_get_format ((void *)hdr) != IMAGE_FORMAT_LEGACY) {
145 puts ("Non legacy image format not supported\n");
150 timestamp = (time_t)image_get_time (hdr);
151 to_tm (timestamp, &tm);
152 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);
154 #define FACTORY_SETTINGS 0xFFFC0000
155 if ((s = getenv ("ethaddr")) == NULL) {
156 e = (char *) (FACTORY_SETTINGS);
160 || *(e + 3) != '4' || *(e + 4) != '0' || *(e + 17) != '\0') {
161 printf ("No valid MAC address in flash location 0x3C0000!\n");
163 printf ("Factory MAC: %s\n", e);
164 setenv ("ethaddr", e);
167 sprintf (bootcmd,"source %X",(unsigned)bootscript);
168 setenv ("bootcmd", bootcmd);
172 /* ------------------------------------------------------------------------- */
173 phys_size_t initdram (int board_type)
178 /* ------------------------------------------------------------------------- */
179 /* stubs so we can print dates w/o any nvram RTC.*/
180 int rtc_get (struct rtc_time *tmp)
184 int rtc_set (struct rtc_time *tmp)
188 void rtc_reset (void)
193 /* ------------------------------------------------------------------------- */
194 /* Do sdram bank init in C so I can read it..no console to print to yet!
196 static void init_sdram (void)
200 /* write SDRAM bank 0 register */
201 mtdcr (SDRAM0_CFGADDR, SDRAM0_B0CR);
202 mtdcr (SDRAM0_CFGDATA, 0x00062001);
204 /* Set the SDRAM Timing reg, SDTR1 and the refresh timer reg, RTR. */
205 /* To set the appropriate timings, we need to know the SDRAM speed. */
206 /* We can use the PLB speed since the SDRAM speed is the same as */
207 /* the PLB speed. The PLB speed is the FBK divider times the */
208 /* 405GP reference clock, which on the L1 is 25MHz. */
209 /* Thus, if FBK div is 2, SDRAM is 50MHz; if FBK div is 3, SDRAM is */
210 /* 150MHz; if FBK is 3, SDRAM is 150MHz. */
212 /* divisor = ((mfdcr(strap)>> 28) & 0x3); */
214 /* write SDRAM timing for 100MHz. */
215 mtdcr (SDRAM0_CFGADDR, SDRAM0_TR);
216 mtdcr (SDRAM0_CFGDATA, 0x0086400D);
218 /* write SDRAM refresh interval register */
219 mtdcr (SDRAM0_CFGADDR, SDRAM0_RTR);
220 mtdcr (SDRAM0_CFGDATA, 0x05F00000);
223 /* sdram controller.*/
224 mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
225 mtdcr (SDRAM0_CFGDATA, 0x90800000);
228 /* initially, disable ECC on all banks */
230 mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
231 tmp = mfdcr (SDRAM0_CFGDATA);
233 mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
234 mtdcr (SDRAM0_CFGDATA, tmp);
239 extern int memory_post_test (int flags);
244 uint *pstart = (uint *) 0x00000000;
245 uint *pend = (uint *) L1_MEMSIZE;
248 if (getenv_f("booted",NULL,0) <= 0)
250 printf ("testdram..");
252 for (p = pstart; p < pend; p++)
254 for (p = pstart; p < pend; p++) {
255 if (*p != 0xaaaaaaaa) {
256 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
257 (uint) p, *p, 0xaaaaaaaa);
262 for (p = pstart; p < pend; p++)
264 for (p = pstart; p < pend; p++) {
265 if (*p != 0x55555555) {
266 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
267 (uint) p, *p, 0x55555555);
272 for (p = pstart; p < pend; p++)
274 for (p = pstart; p < pend; p++) {
275 if (*p != (unsigned)p) {
276 printf ("SDRAM test fails at: %08x, was %08x expected %08x\n",
277 (uint) p, *p, (uint)p);
281 printf ("Success. ");
283 printf ("Enable ECC..");
285 mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
286 tmp = (mfdcr (SDRAM0_CFGDATA) & ~0xFFE00000) | 0x90800000;
287 mtdcr (SDRAM0_CFGADDR, SDRAM0_CFG);
288 mtdcr (SDRAM0_CFGDATA, tmp);
290 for (p = (unsigned long) 0; ((unsigned long) p < L1_MEMSIZE); *p++ = 0L)
293 mtdcr (SDRAM0_CFGADDR, SDRAM0_ECCCFG);
294 tmp = mfdcr (SDRAM0_CFGDATA);
296 mtdcr (SDRAM0_CFGDATA, tmp);
298 printf ("enabled.\n");
302 /* ------------------------------------------------------------------------- */
303 static u8 *dhcp_env_update (u8 thing, u8 * pop)
309 if ((Things[thing].dhcpvalue = malloc (oplen)) == NULL) {
310 printf ("Whoops! failed to malloc space for DHCP thing %s\n",
311 Things[thing].envname);
314 for (i = 0; (i < oplen); i++)
315 if ((*(Things[thing].dhcpvalue + i) = *(pop + 2 + i)) == ' ')
317 *(Things[thing].dhcpvalue + i) = '\0';
320 if (Things[thing].envname)
322 setenv (Things[thing].envname, Things[thing].dhcpvalue);
324 return ((u8 *)(Things[thing].dhcpvalue));
327 /* ------------------------------------------------------------------------- */
328 u8 *dhcp_vendorex_prep (u8 * e)
332 /* ask for the things I want. */
333 *e++ = 55; /* Parameter Request List */
335 for (thing = 0; thing < N_THINGS; thing++)
336 *e++ = Things[thing].dhcp_option;
342 /* ------------------------------------------------------------------------- */
343 /* .. return NULL means it wasnt mine, non-null means I got it..*/
344 u8 *dhcp_vendorex_proc (u8 * pop)
346 u8 oplen, *sub_op, sub_oplen, *retval;
351 /* if pop is vender spec indicator, there are sub-options. */
352 if (*pop == DHCP_VENDOR_SPECX) {
353 for (sub_op = pop + 2;
354 oplen && (sub_oplen = *(sub_op + 1));
355 oplen -= sub_oplen, sub_op += (sub_oplen + 2)) {
356 for (thing = 0; thing < N_THINGS; thing++) {
357 if (*sub_op == Things[thing].dhcp_vendor_option) {
358 if (!(retval = dhcp_env_update (thing, sub_op))) {
365 for (thing = 0; thing < N_THINGS; thing++) {
366 if (*pop == Things[thing].dhcp_option)
367 if (!(retval = dhcp_env_update (thing, pop)))