[src/uebayasi-xip]: src/sys/arch/evbppc/obs405 Map the NOR FlashROM region in...

[uebayasi <uebayasi%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/7d9c0a19682d
branches:  uebayasi-xip
changeset: 751768:7d9c0a19682d
user:      uebayasi <uebayasi%NetBSD.org@localhost>
date:      Wed Aug 11 14:02:45 2010 +0000

description:
Map the NOR FlashROM region into kernel using a reserved TLB.  This is
touched to synchronize I-cache an executable page by pmap_enter().

diffstat:

 sys/arch/evbppc/obs405/obs266_machdep.c |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (36 lines):

diff -r 3ef523fa4dcc -r 7d9c0a19682d sys/arch/evbppc/obs405/obs266_machdep.c
--- a/sys/arch/evbppc/obs405/obs266_machdep.c   Wed Aug 11 13:56:27 2010 +0000
+++ b/sys/arch/evbppc/obs405/obs266_machdep.c   Wed Aug 11 14:02:45 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: obs266_machdep.c,v 1.10.2.1 2010/04/30 14:39:18 uebayasi Exp $ */
+/*     $NetBSD: obs266_machdep.c,v 1.10.2.2 2010/08/11 14:02:45 uebayasi Exp $ */
 /*     Original: md_machdep.c,v 1.3 2005/01/24 18:47:37 shige Exp $    */
 
 /*
@@ -68,12 +68,13 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: obs266_machdep.c,v 1.10.2.1 2010/04/30 14:39:18 uebayasi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: obs266_machdep.c,v 1.10.2.2 2010/08/11 14:02:45 uebayasi Exp $");
 
 #include "opt_compat_netbsd.h"
 #include "opt_ddb.h"
 #include "opt_ipkdb.h"
 #include "opt_modular.h"
+#include "opt_xip.h"
 
 #include <sys/param.h>
 #include <sys/kernel.h>
@@ -149,6 +150,11 @@
        for (va = 0; va < endkernel; va += TLB_PG_SIZE)
                ppc4xx_tlb_reserve(va, va, TLB_PG_SIZE, TLB_EX);
 
+#ifdef XIP
+       /* Map NOR FlashROM as managed. */
+       ppc4xx_tlb_reserve(0xff000000, 0xff000000, TLB_PG_SIZE, TLB_I);
+#endif
+
        /* Map console after RAM (see pmap_tlbmiss()) */
        ppc4xx_tlb_reserve(CONADDR, roundup(memsize, TLB_PG_SIZE), TLB_PG_SIZE,
            TLB_I | TLB_G);