11/750 fixes:
- Set the correct adapter address in RPB for Unibus devices. - Repair the disk read routines for HP disks. ROM routines do not work on HP disks, therefore use a small home-written routine.
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ragge
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f7b7cabc0b
commit
93753c91c0
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@ -1,4 +1,4 @@
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/* $NetBSD: bootxx.c,v 1.6 2000/05/20 13:21:29 ragge Exp $ */
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/* $NetBSD: bootxx.c,v 1.7 2000/05/21 09:44:16 ragge Exp $ */
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/*-
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* Copyright (c) 1982, 1986 The Regents of the University of California.
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* All rights reserved.
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@ -64,7 +64,7 @@
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void Xmain(void);
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void hoppabort(int);
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void romread_uvax(int lbn, int size, void *buf, struct rpb *rpb);
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int hpread(int block, int size, char *buf);
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void hpread(int block);
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int read750(int block, int *regs);
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int unit_init(int, struct rpb *, int);
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@ -113,6 +113,9 @@ Xmain()
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rpb->rpb_bootr5 = bootregs[5];
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rpb->csrphy = bootregs[2];
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rpb->adpphy = bootregs[1]; /* BI node on 8200 */
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if (rpb->devtyp != BDEV_HP && vax_cputype == VAX_TYP_750)
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rpb->adpphy =
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(bootregs[1] == 0xffe000 ? 0xf30000 : 0xf32000);
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}
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rpb->rpb_base = rpb;
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rpb->iovec = (int)bqo;
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@ -172,11 +175,6 @@ tar_read(f, buf, size, resid)
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}
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#endif
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volatile struct uda {
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struct mscp_1ca uda_ca; /* communications area */
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struct mscp uda_rsp; /* response packets */
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struct mscp uda_cmd; /* command packets */
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} uda;
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int
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devopen(f, fname, file)
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@ -196,18 +194,24 @@ devopen(f, fname, file)
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initfn = rpb->iovec + bqo->unit_init;
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if (rpb->devtyp == BDEV_UDA || rpb->devtyp == BDEV_TK) {
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/*
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* This reset do not seem to be done in the
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* ROM routines, so we have to do it manually.
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*/
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csr = (struct udadevice *)rpb->csrphy;
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csr->udaip = 0;
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while ((csr->udasa & MP_STEP1) == 0)
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;
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}
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/*
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* AP (R12) have a pointer to the VMB argument list,
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* wanted by bqo->unit_init.
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*/
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unit_init(initfn, rpb, bootregs[12]);
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}
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return 0;
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}
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int curblock = 0;
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int
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romstrategy(sc, func, dblk, size, buf, rsize)
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void *sc;
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@ -223,17 +227,16 @@ romstrategy(sc, func, dblk, size, buf, rsize)
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if (from == FROMMV) {
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romread_uvax(block, size, buf, rpb);
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} else /* if (from == FROM750) */ {
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if (rpb->devtyp == BDEV_HP) {
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hpread(block, size, buf);
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} else
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while (size > 0) {
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while ((read750(block, bootregs) & 0x01) == 0){
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}
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bcopy(0, buf, 512);
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size -= 512;
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(char *)buf += 512;
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block++;
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}
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while (size > 0) {
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if (rpb->devtyp == BDEV_HP)
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hpread(block);
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else
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read750(block, bootregs);
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bcopy(0, buf, 512);
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size -= 512;
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(char *)buf += 512;
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block++;
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}
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}
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if (rsize)
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@ -241,35 +244,47 @@ romstrategy(sc, func, dblk, size, buf, rsize)
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return 0;
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}
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int
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hpread(int block, int size, char *buf)
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/*
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* The 11/750 boot ROM for Massbus disks doesn't seen to have layout info
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* for all RP disks (not RP07 at least) so therefore a very small and dumb
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* device driver is used. It assumes that there is a label on the disk
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* already that has valid layout info. If there is no label, we can't boot
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* anyway.
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*/
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void
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hpread(int bn)
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{
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volatile struct mba_regs *mr = (void *) bootregs[1];
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volatile struct hp_drv *hd = (void*)&mr->mba_md[bootregs[3]];
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u_int pfnum, nsize, mapnr, bn, cn, sn, tn;
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u_int cn, sn, tn;
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struct disklabel *dp;
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extern char start;
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dp = (struct disklabel *)(LABELOFFSET + &start);
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pfnum = (u_int) buf >> PGSHIFT;
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*(int *)&mr->mba_map[0] = PG_V;
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for (mapnr = 0, nsize = size; (nsize + NBPG) > 0; nsize -= NBPG)
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*(int *)&mr->mba_map[mapnr++] = PG_V | pfnum++;
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mr->mba_var = ((u_int) buf & PGOFSET);
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mr->mba_bc = (~size) + 1;
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bn = block;
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mr->mba_var = 0;
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mr->mba_bc = (~512) + 1;
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#ifdef __GNUC__
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/*
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* Avoid four subroutine calls by using hardware division.
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*/
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asm("clrl r1;ediv %4,%3,%0,%1;movl %1,r0;ediv %5,r0,%2,%1"
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: "=g"(cn),"=g"(sn),"=g"(tn)
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: "g"(bn),"g"(dp->d_secpercyl),"g"(dp->d_nsectors)
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: "r0","r1","cc");
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#else
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cn = bn / dp->d_secpercyl;
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sn = bn % dp->d_secpercyl;
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tn = sn / dp->d_nsectors;
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sn = sn % dp->d_nsectors;
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#endif
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hd->hp_dc = cn;
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hd->hp_da = (tn << 8) | sn;
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hd->hp_cs1 = HPCS_READ;
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while (mr->mba_sr & MBASR_DTBUSY);
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if (mr->mba_sr & MBACR_ABORT){
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return 1;
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}
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return 0;
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while (mr->mba_sr & MBASR_DTBUSY)
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;
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return;
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}
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extern char end[];
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