[src/trunk]: src/sys/arch/arm/samsung Exynos5 needs the MCT running to have t...

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

details:   https://anonhg.NetBSD.org/src/rev/a8517943ca36
branches:  trunk
changeset: 796583:a8517943ca36
user:      matt <matt%NetBSD.org@localhost>
date:      Wed Jun 11 05:43:39 2014 +0000

description:
Exynos5 needs the MCT running to have the Global Timer operate.

diffstat:

 sys/arch/arm/samsung/exynos_soc.c |  14 ++++++++++++--
 1 files changed, 12 insertions(+), 2 deletions(-)

diffs (35 lines):

diff -r d7b7d8784b70 -r a8517943ca36 sys/arch/arm/samsung/exynos_soc.c
--- a/sys/arch/arm/samsung/exynos_soc.c Tue Jun 10 22:02:58 2014 +0000
+++ b/sys/arch/arm/samsung/exynos_soc.c Wed Jun 11 05:43:39 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: exynos_soc.c,v 1.12 2014/05/21 12:16:17 reinoud Exp $  */
+/*     $NetBSD: exynos_soc.c,v 1.13 2014/06/11 05:43:39 matt Exp $     */
 /*-
  * Copyright (c) 2014 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -33,7 +33,7 @@
 #define        _ARM32_BUS_DMA_PRIVATE
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(1, "$NetBSD: exynos_soc.c,v 1.12 2014/05/21 12:16:17 reinoud Exp $");
+__KERNEL_RCSID(1, "$NetBSD: exynos_soc.c,v 1.13 2014/06/11 05:43:39 matt Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -311,6 +311,16 @@
                return;
        }
        if (device_is_a(self, "armgtmr") || device_is_a(self, "mct")) {
+#ifdef EXONYS5
+               /*
+                * The global timer is dependent on the MCT running.
+                */
+               bus_size_t o = EXYNOS5_MCT_OFFSET + MCT_G_TCON;
+               uint32_t v = bus_space_read_4(&exynos_bs_tag, exynos_core_bsh,
+                    p);
+               v |= G_TCON_START;
+               bus_space_write_4(&exynos_bs_tag, exynos_core_bsh, o, v);
+#endif
                /*
                 * The frequencies of the timers are the reference
                 * frequency.