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Fix the ranges_bitmap function so it correctly finds the various ranges

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on OFW, and passes them on to ofwoea_batmap correctly.  With this fix,
ofppc now properly initializes all of it's batmappings.

Kept the macppc specific override of the bitmap, but surrounded it with
an #ifdef macppc.  It would probably be worth testing macppc without this
ifdef to see if it works there as well.
This commit is contained in:
garbled 2007-10-26 08:41:24 +00:00
parent b9c06c9fc0
commit 670c8a4f93
1 changed files with 17 additions and 12 deletions
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29
sys/arch/powerpc/oea/ofwoea_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: ofwoea_machdep.c,v 1.3 2007/10/25 16:55:50 garbled Exp $ */
/* $NetBSD: ofwoea_machdep.c,v 1.4 2007/10/26 08:41:24 garbled Exp $ */
/*-
* Copyright (c) 2007 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ofwoea_machdep.c,v 1.3 2007/10/25 16:55:50 garbled Exp $");
__KERNEL_RCSID(0, "$NetBSD: ofwoea_machdep.c,v 1.4 2007/10/26 08:41:24 garbled Exp $");
#include "opt_compat_netbsd.h"
@ -308,32 +308,33 @@ restore_ofmap(struct ofw_translations *map, int len)
static u_int16_t
ranges_bitmap(int node, u_int16_t bitmap)
{
int child, mlen, len, acells, scells, reclen, i, addr, j;
u_int32_t map[160];
int child, mlen, acells, scells, reclen, i, j;
u_int32_t addr, len, map[160];
for (child = OF_child(node); child; child = OF_peer(child)) {
mlen = OF_getprop(child, "ranges", map, sizeof(map));
if (mlen == -1)
goto noranges;
len = OF_getprop(child, "#address-cells", &acells,
j = OF_getprop(child, "#address-cells", &acells,
sizeof(acells));
if (len == -1)
if (j == -1)
goto noranges;
len = OF_getprop(child, "#size-cells", &scells,
j = OF_getprop(child, "#size-cells", &scells,
sizeof(scells));
if (len == -1)
if (j == -1)
goto noranges;
reclen = acells + 1 + scells;
for (i=0; i < reclen/(mlen/4); i++) {
addr = map[reclen * i + acells + 1];
for (i=0; i < (mlen/4)/reclen; i++) {
addr = map[reclen * i + acells];
len = map[reclen * i + reclen - 1];
for (j = 0; j < len / 0x10000000; j++)
bitmap |= 1 << ((addr+j*0x10000000) >>28);
bitmap |= 1 << (addr >> 28);
}
noranges:
bitmap |= ranges_bitmap(child, bitmap);
continue;
@ -357,11 +358,15 @@ ofwoea_batinit(void)
bitmap = ranges_bitmap(node, 0);
oea_batinit(0);
#ifdef macppc
/* XXX this is a macppc-specific hack */
bitmap = 0x8f00;
#endif
for (i=1; i < 0x10; i++)
if (bitmap & (1 << i))
if (bitmap & (1 << i)) {
oea_iobat_add(0x10000000 * i, BAT_BL_256M);
DPRINTF("Batmapped 256M at 0x%x\n", 0x10000000 * i);
}
#endif
}