Fixed pre-MMU rom console printing.
Fixed probing of the segment list on color NeXT's. Added some debug messages on console as it reads the hardware config.
This commit is contained in:
dbj
parent
795a3913c8
commit
0a1e71abf1
@ -1,4 +1,4 @@
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/* $NetBSD: nextrom.c,v 1.2 1998/07/01 22:23:40 dbj Exp $ */
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/* $NetBSD: nextrom.c,v 1.3 1998/07/04 05:36:05 dbj Exp $ */
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/*
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* Copyright (c) 1998 Darrin B. Jewell
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* All rights reserved.
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@ -37,152 +37,46 @@
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#include <next68k/next68k/nextrom.h>
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void next68k_bootargs __P((unsigned char *args[]));
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void dbj_message __P((char * s));
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int mon_getc(void);
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int mon_putc(int c);
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#if 0
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struct mon_global *mg;
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#else
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char *mg;
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#endif
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#if 0
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#define MON(type, off) (*(type *)((u_int) (mg) + off))
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#define RELOC(v, t) *((t *)((u_int)&(v) + NEXT_RAMBASE))
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#define RELOC(v, t) (*((t *)((u_int)&(v) + NEXT_RAMBASE)))
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#define MONRELOC(type, off) \
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(*(type *)((u_int) RELOC(mg,struct mon_global *) + off))
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#define MONRELOC(type, off) (*(type *)((u_int) RELOC(mg,char *) + off))
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typedef int (*getcptr)(void);
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typedef int (*putcptr)(int);
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void
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dbj_message(char *s)
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{
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MONRELOC(putcptr,MG_putc)('D');
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MONRELOC(putcptr,MG_putc)('B');
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MONRELOC(putcptr,MG_putc)('J');
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MONRELOC(putcptr,MG_putc)(':');
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while (s && *s) {
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MONRELOC(putcptr,MG_putc)(*s++);
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}
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MONRELOC(putcptr,MG_putc)('\r');
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MONRELOC(putcptr,MG_putc)('\n');
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};
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void
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dbj_message(char *s)
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{
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char *vector = (u_int)&mg + NEXT_RAMBASE;
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putcptr func = (putcptr)(*(int *)(vector + MG_putc));
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(*func)('D');
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(*func)('B');
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(*func)('J');
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(*func)(':');
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while (s && *s) {
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(*func)(*s++);
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}
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(*func)('\r');
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(*func)('\n');
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}
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void
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dbj_check()
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{
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MONRELOC(putcptr,MG_putc)('*');
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MONRELOC(putcptr,MG_putc)('\r');
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MONRELOC(putcptr,MG_putc)('\n');
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}
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struct dbj_trapframe {
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int dregs[8];
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int aregs[8];
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short sr;
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int pc;
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short frame;
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char info[0];
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};
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void
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dbj_hex(v)
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unsigned long v;
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{
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int i;
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MONRELOC(putcptr,MG_putc)('0');
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MONRELOC(putcptr,MG_putc)('x');
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for(i=0;i<8;i++) {
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if ((v&0xf0000000) == 0x00000000) MONRELOC(putcptr,MG_putc)('0');
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if ((v&0xf0000000) == 0x10000000) MONRELOC(putcptr,MG_putc)('1');
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if ((v&0xf0000000) == 0x20000000) MONRELOC(putcptr,MG_putc)('2');
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if ((v&0xf0000000) == 0x30000000) MONRELOC(putcptr,MG_putc)('3');
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if ((v&0xf0000000) == 0x40000000) MONRELOC(putcptr,MG_putc)('4');
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if ((v&0xf0000000) == 0x50000000) MONRELOC(putcptr,MG_putc)('5');
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if ((v&0xf0000000) == 0x60000000) MONRELOC(putcptr,MG_putc)('6');
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if ((v&0xf0000000) == 0x70000000) MONRELOC(putcptr,MG_putc)('7');
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if ((v&0xf0000000) == 0x80000000) MONRELOC(putcptr,MG_putc)('8');
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if ((v&0xf0000000) == 0x90000000) MONRELOC(putcptr,MG_putc)('9');
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if ((v&0xf0000000) == 0xa0000000) MONRELOC(putcptr,MG_putc)('a');
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if ((v&0xf0000000) == 0xb0000000) MONRELOC(putcptr,MG_putc)('b');
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if ((v&0xf0000000) == 0xc0000000) MONRELOC(putcptr,MG_putc)('c');
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if ((v&0xf0000000) == 0xd0000000) MONRELOC(putcptr,MG_putc)('d');
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if ((v&0xf0000000) == 0xe0000000) MONRELOC(putcptr,MG_putc)('e');
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if ((v&0xf0000000) == 0xf0000000) MONRELOC(putcptr,MG_putc)('f');
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v=v<<4;
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}
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MONRELOC(putcptr,MG_putc)('\r');
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MONRELOC(putcptr,MG_putc)('\n');
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}
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void
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dbj_print(char *s)
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{
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mon_putc('D');
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mon_putc('B');
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mon_putc('J');
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mon_putc(':');
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if (s) while(*s) {
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mon_putc(*s++);
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}
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mon_putc('\r');
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mon_putc('\n');
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}
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int
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mon_getc()
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{
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return(MON(getcptr,MG_getc)());
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}
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int
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mon_putc(c)
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int c;
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{
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return(MON(putcptr,MG_putc)(c));
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}
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#endif
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void next68k_bootargs __P((unsigned char *args[]));
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/*
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* Very early initialization, before we do much.
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* Memory isn't even mapped here.
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* Print a string on the rom console before the MMU is turned on
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*/
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#include <next68k/next68k/nextrom.h>
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extern char *mg;
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#define MON(type, off) (*(type *)((u_int) (mg) + off))
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#define RELOC(v, t) *((t *)((u_int)&(v) + NEXT_RAMBASE))
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#define MONRELOC(type, off) (*(type *)((u_int) RELOC(mg,char *) + off))
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extern void dbj_message(char * s);
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#define DBJ_DEBUG(xs) \
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((*((void (*)(char *))(((void *)&dbj_message)+NEXT_RAMBASE))) \
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((xs)+NEXT_RAMBASE))
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#define ROM_PUTS(xs) \
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do { char *_s = xs + NEXT_RAMBASE; \
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while(_s && *_s) (*MONRELOC(putcptr,MG_putc))(*_s++); \
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} while(0)
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/* Print a hex byte on the rom console */
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char romprint_hextable[] = "0123456789abcdef";
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#define ROM_PUTX(v) \
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do { \
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(*MONRELOC(putcptr,MG_putc)) \
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((romprint_hextable+NEXT_RAMBASE)[((v)>>4)&0xf]); \
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(*MONRELOC(putcptr,MG_putc)) \
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((romprint_hextable+NEXT_RAMBASE)[(v)&0xf]); \
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} while(0);
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u_char rom_enetaddr[6];
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@ -192,40 +86,70 @@ next68k_bootargs(args)
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{
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RELOC(mg,char *) = args[1];
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#if 0
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DBJ_DEBUG("Check serial port A for console");
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ROM_PUTS("Welcome to NetBSD/next68k\r\n");
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ROM_PUTS("Constructing the segment list...\r\n");
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ROM_PUTS("machine type = 0x");
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ROM_PUTX(MONRELOC(char,MG_machine_type));
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ROM_PUTS("\r\nboard rev = 0x");
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ROM_PUTX(MONRELOC(char,MG_board_rev));
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ROM_PUTS("\r\n");
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/* If we continue, we will die because the compiler
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* generates global symbols
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*/
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#endif
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/* Construct the segment list */
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{
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{
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u_int msize16;
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u_int msize4;
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u_int msize1;
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int i;
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int j = 0;
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if (MONRELOC(char,MG_machine_type) == NeXT_X15) {
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msize16 = 0x1000000;
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msize4 = 0x400000;
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msize1 = 0x100000;
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ROM_PUTS("Looks like a NeXT_X15\r\n");
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} else if (MONRELOC(char,MG_machine_type) == NeXT_WARP9C) {
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msize16 = 0x800000;
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msize4 = 0x200000;
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msize1 = 0x80000; /* ? */
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ROM_PUTS("Looks like a NeXT_WARP9C\r\n");
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} else {
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msize16 = 0x100000;
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msize4 = 0x100000;
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msize1 = 0x100000;
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ROM_PUTS("Unrecognized machine_type\r\n");
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}
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for (i=0;i<N_SIMM;i++) {
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if ((MONRELOC(char,MG_simm+i) & SIMM_SIZE) == SIMM_SIZE_EMPTY) {
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} else {
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ROM_PUTS("Memory bank 0x");
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ROM_PUTX(i);
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ROM_PUTS(" has value 0x");
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ROM_PUTX(MONRELOC(char,MG_simm+i))
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ROM_PUTS("\r\n");
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if ((MONRELOC(char,MG_simm+i) & SIMM_SIZE) != SIMM_SIZE_EMPTY) {
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RELOC(phys_seg_list[j].ps_start, vm_offset_t)
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= NEXT_RAMBASE+(i*NEXT_BANKSIZE);
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= NEXT_RAMBASE+(i*msize16);
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}
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if ((MONRELOC(char,MG_simm+i) & SIMM_SIZE) == SIMM_SIZE_16MB) {
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RELOC(phys_seg_list[j].ps_end, vm_offset_t) =
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RELOC(phys_seg_list[j].ps_start, vm_offset_t) +
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(0x1000000);
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msize16;
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j++;
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}
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if ((MONRELOC(char,MG_simm+i) & SIMM_SIZE) == SIMM_SIZE_4MB) {
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RELOC(phys_seg_list[j].ps_end, vm_offset_t) =
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RELOC(phys_seg_list[j].ps_start, vm_offset_t) +
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(0x400000);
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msize4;
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j++;
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}
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if ((MONRELOC(char,MG_simm+i) & SIMM_SIZE) == SIMM_SIZE_1MB) {
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RELOC(phys_seg_list[j].ps_end, vm_offset_t) =
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RELOC(phys_seg_list[j].ps_start, vm_offset_t) +
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(0x100000);
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msize1;
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j++;
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}
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}
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@ -236,13 +160,39 @@ next68k_bootargs(args)
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}
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}
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{
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int i;
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ROM_PUTS("Memory segments found:\r\n");
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for (i=0;RELOC(phys_seg_list[i].ps_start, vm_offset_t);i++) {
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ROM_PUTS("\t0x");
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ROM_PUTX((RELOC(phys_seg_list[i].ps_start, vm_offset_t)>>24)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_start, vm_offset_t)>>16)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_start, vm_offset_t)>>8)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_start, vm_offset_t)>>0)&0xff);
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ROM_PUTS(" - 0x");
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ROM_PUTX((RELOC(phys_seg_list[i].ps_end, vm_offset_t)>>24)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_end, vm_offset_t)>>16)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_end, vm_offset_t)>>8)&0xff);
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ROM_PUTX((RELOC(phys_seg_list[i].ps_end, vm_offset_t)>>0)&0xff);
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ROM_PUTS("\r\n");
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}
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}
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/* Read the ethernet address from rom, this should be done later
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* in device driver somehow.
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*/
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{
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int i;
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ROM_PUTS("Ethernet address: ");
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for(i=0;i<6;i++) {
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RELOC(rom_enetaddr[i], u_char) = MONRELOC(u_char *, MG_clientetheraddr)[i];
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ROM_PUTX(RELOC(rom_enetaddr[i],u_char));
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if (i < 5) ROM_PUTS(":");
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}
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ROM_PUTS("\r\n");
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}
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ROM_PUTS("Check serial port A for console.\r\n");
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: nextrom.h,v 1.1.1.1 1998/06/09 07:53:06 dbj Exp $ */
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/* $NetBSD: nextrom.h,v 1.2 1998/07/04 05:36:06 dbj Exp $ */
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/*
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* Copyright (c) 1998 Darrin B. Jewell
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* All rights reserved.
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@ -104,6 +104,8 @@
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* I made up these:
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*/
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#define MG_clientetheraddr 788
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#define MG_machine_type 936
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#define MG_board_rev 937
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#if 0
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@ -1,4 +1,4 @@
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/* $NetBSD: seglist.h,v 1.1.1.1 1998/06/09 07:53:06 dbj Exp $ */
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/* $NetBSD: seglist.h,v 1.2 1998/07/04 05:36:06 dbj Exp $ */
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/*
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* Copyright (c) 1997 The Steve Woodford
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@ -62,6 +62,12 @@ struct phys_seg_list_t {
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*/
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#define MAX_PHYS_SEGS N_SIMM+1
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/* Machine types, used in both assembler and C sources. */
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#define NeXT_CUBE 0
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#define NeXT_WARP9 1
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#define NeXT_X15 2
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#define NeXT_WARP9C 3
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/* Instantiated in pmap.c */
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/* size +1 is for list termination */
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extern struct phys_seg_list_t phys_seg_list[MAX_PHYS_SEGS];
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