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/*
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2000 Silicon Graphics, Inc.
* Copyright (C) 2000 by Jack Steiner (steiner@sgi.com)
*/
#include <linux/types.h>
#include <asm/bitops.h>
void bedrock_init(int);
void synergy_init(int, int);
void sys_fw_init (const char *args, int arglen, int bsp);
volatile int bootmaster=0; /* Used to pick bootmaster */
volatile int nasidmaster[128]={0}; /* Used to pick node/synergy masters */
int init_done=0;
extern int bsp_lid;
#define get_bit(b,p) (((*p)>>(b))&1)
int
fmain(int lid, int bsp) {
int syn, nasid, cpu;
/*
* First lets figure out who we are. This is done from the
* LID passed to us.
*/
nasid = (lid>>24);
syn = (lid>>17)&1;
cpu = (lid>>16)&1;
/*
* Now pick a synergy master to initialize synergy registers.
*/
if (test_and_set_bit(syn, &nasidmaster[nasid]) == 0) {
synergy_init(nasid, syn);
test_and_set_bit(syn+2, &nasidmaster[nasid]);
} else
while (get_bit(syn+2, &nasidmaster[nasid]) == 0);
/*
* Now pick a nasid master to initialize Bedrock registers.
*/
if (test_and_set_bit(8, &nasidmaster[nasid]) == 0) {
bedrock_init(nasid);
test_and_set_bit(9, &nasidmaster[nasid]);
} else
while (get_bit(9, &nasidmaster[nasid]) == 0);
/*
* Now pick a BSP & finish init.
*/
if (test_and_set_bit(0, &bootmaster) == 0) {
sys_fw_init(0, 0, bsp);
test_and_set_bit(1, &bootmaster);
} else
while (get_bit(1, &bootmaster) == 0);
return (lid == bsp_lid);
}
void
bedrock_init(int nasid)
{
nasid = nasid; /* to quiet gcc */
}
void
synergy_init(int nasid, int syn)
{
long *base;
long off;
/*
* Enable all FSB flashed interrupts.
* ZZZ - I'd really like defines for this......
*/
base = (long*)0x80000e0000000000LL; /* base of synergy regs */
for (off = 0x2a0; off < 0x2e0; off+=8) /* offset for VEC_MASK_{0-3}_A/B */
*(base+off/8) = -1LL;
/*
* Set the NASID in the FSB_CONFIG register.
*/
base = (long*)0x80000e0000000450LL;
*base = (long)((nasid<<16)|(syn<<9));
}
/* Why isnt there a bcopy/memcpy in lib64.a */
void*
memcpy(void * dest, const void *src, size_t count)
{
char *s, *se, *d;
for(d=dest, s=(char*)src, se=s+count; s<se; s++, d++)
*d = *s;
return dest;
}
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