[coreboot-gerrit] New patch to review for coreboot: bec2642 Exynos5420: invoke the cooperative threading in udelay
Isaac Christensen (isaac.christensen@se-eng.com)
gerrit at coreboot.org
Wed Aug 6 23:06:10 CEST 2014
Isaac Christensen (isaac.christensen at se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6510
-gerrit
commit bec264203778168f41b9a178a9fcb61d63bed02d
Author: Ronald G. Minnich <rminnich at gmail.com>
Date: Sun Aug 18 20:01:07 2013 -0700
Exynos5420: invoke the cooperative threading in udelay
Call thread_yield_microseconds in udelay. This works with and without
COOP_MULTITASKING enabled.
Change-Id: Ib3eab00d1630dc4daada850e7458ab89702d1864
Signed-off-by: Ronald G. Minnich <rminnich at gmail.com>
Reviewed-on: https://gerrit.chromium.org/gerrit/66327
Reviewed-by: Aaron Durbin <adurbin at chromium.org>
Reviewed-by: Vincent Palatin <vpalatin at chromium.org>
Commit-Queue: Ronald G. Minnich <rminnich at chromium.org>
Tested-by: Ronald G. Minnich <rminnich at chromium.org>
(cherry picked from commit 12e55ba8a68e5d40e08ad169848bdf274887ce0b)
Signed-off-by: Isaac Christensen <isaac.christensen at se-eng.com>
---
src/cpu/samsung/exynos5420/timer.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/cpu/samsung/exynos5420/timer.c b/src/cpu/samsung/exynos5420/timer.c
index 88e1f3e..f8d3110 100644
--- a/src/cpu/samsung/exynos5420/timer.c
+++ b/src/cpu/samsung/exynos5420/timer.c
@@ -20,7 +20,7 @@
#include <console/console.h>
#include <timer.h>
#include <delay.h>
-
+#include <thread.h>
#include "clk.h"
void init_timer(void)
@@ -33,6 +33,9 @@ void udelay(unsigned usec)
{
struct mono_time current, end;
+ if (!thread_yield_microseconds(usec))
+ return;
+
timer_monotonic_get(¤t);
end = current;
mono_time_add_usecs(&end, usec);
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