[src/netbsd-9]: src/sys/arch Pull up following revision(s) (requested by rin ...

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

details:   https://anonhg.NetBSD.org/src/rev/831e41d84b01
branches:  netbsd-9
changeset: 931077:831e41d84b01
user:      martin <martin%NetBSD.org@localhost>
date:      Tue Apr 21 16:54:51 2020 +0000

description:
Pull up following revision(s) (requested by rin in ticket #837):

        sys/arch/macppc/stand/ofwboot/Locore.c: revision 1.34
        sys/arch/powerpc/oea/ofw_consinit.c: revision 1.18

When boot up with auto-boot? == true, some systems do not provide stdout
if the normal output is screen.

Open screen explicitly as stdout in this case, both for ofwboot and kernel,
which fixes problems with auto-boot? == true for Mac mini G4:
- messages from ofwboot do not appear
- kernel freeze during early boot stage

Taken from OpenBSD:
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/macppc/macppc/ofw_machdep.c#rev1.3
http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/sys/arch/macppc/stand/Locore.c#rev1.3

XXX
pullup to netbsd-9 and -8

diffstat:

 sys/arch/macppc/stand/ofwboot/Locore.c |  7 ++++++-
 sys/arch/powerpc/oea/ofw_consinit.c    |  8 ++++++--
 2 files changed, 12 insertions(+), 3 deletions(-)

diffs (50 lines):

diff -r 74514c46009a -r 831e41d84b01 sys/arch/macppc/stand/ofwboot/Locore.c
--- a/sys/arch/macppc/stand/ofwboot/Locore.c    Thu Apr 16 14:03:24 2020 +0000
+++ b/sys/arch/macppc/stand/ofwboot/Locore.c    Tue Apr 21 16:54:51 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: Locore.c,v 1.33 2018/11/12 20:00:46 scole Exp $        */
+/*     $NetBSD: Locore.c,v 1.33.4.1 2020/04/21 16:54:51 martin Exp $   */
 
 /*
  * Copyright (C) 1995, 1996 Wolfgang Solfrank.
@@ -680,6 +680,11 @@
            sizeof(stdout))
                OF_exit();
 
+       if (stdout == 0) {
+               /* screen should be console, but it is not open */
+               stdout = OF_open("screen");
+       }
+
 #ifdef HEAP_VARIABLE
        uint32_t pvr, vers, hsize = HEAP_SIZE;
 
diff -r 74514c46009a -r 831e41d84b01 sys/arch/powerpc/oea/ofw_consinit.c
--- a/sys/arch/powerpc/oea/ofw_consinit.c       Thu Apr 16 14:03:24 2020 +0000
+++ b/sys/arch/powerpc/oea/ofw_consinit.c       Tue Apr 21 16:54:51 2020 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ofw_consinit.c,v 1.17 2016/02/14 18:12:30 dholland Exp $ */
+/* $NetBSD: ofw_consinit.c,v 1.17.22.1 2020/04/21 16:54:52 martin Exp $ */
 
 /*-
  * Copyright (c) 2007 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ofw_consinit.c,v 1.17 2016/02/14 18:12:30 dholland Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ofw_consinit.c,v 1.17.22.1 2020/04/21 16:54:52 martin Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -458,6 +458,10 @@
        if (OF_getprop(chosen, "stdin", &stdin,
            sizeof(stdin)) != sizeof(stdin))
                goto nocons;
+       if (stdout == 0) {
+                /* screen should be console, but it is not open */
+                stdout = OF_open("screen");
+       }
        node = OF_instance_to_package(stdout);
        console_node = node;
        console_instance = stdout;