From e5e36306a9a5bf96ab8cc990d93bbd62030e635f Mon Sep 17 00:00:00 2001 From: Aaron Durbin Date: Thu, 25 Sep 2014 10:05:15 -0500 Subject: timer: Add generic udelay() implementation Add GENERIC_UDELAY Kconfig option so that a generic udelay() implementation is provided utilizing the monotonic timer. That way each board/chipset doesn't need to duplicate the same udelay(). Additionally, assume that GENERIC_UDELAY implies init_timer() is not required. BUG=None BRANCH=None TEST=Built nyan, ryu, and rambi. May need help testing. Change-Id: I7f511a2324b5aa5d1b2959f4519be85a6a7360e8 Signed-off-by: Patrick Georgi Original-Commit-Id: 1a85fbcad778933d13eaef545135abe7e4de46ed Original-Change-Id: Idd26de19eefc91ee3b0ceddfb1bc2152e19fd8ab Original-Signed-off-by: Aaron Durbin Original-Reviewed-on: https://chromium-review.googlesource.com/219719 Original-Reviewed-by: Julius Werner Original-Reviewed-by: Furquan Shaikh Reviewed-on: http://review.coreboot.org/9334 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/include/delay.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/include') diff --git a/src/include/delay.h b/src/include/delay.h index b3d8ed95da..ab1f4f9829 100644 --- a/src/include/delay.h +++ b/src/include/delay.h @@ -1,7 +1,11 @@ #ifndef DELAY_H #define DELAY_H +#if IS_ENABLED(CONFIG_GENERIC_UDELAY) +static inline void init_timer(void) {} +#else void init_timer(void); +#endif void udelay(unsigned usecs); void mdelay(unsigned msecs); -- cgit v1.2.3