/*
* (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);
}
