[U-Boot] [PATCH v4 0/2] drivers: timer: inroduce ARC timer driver

Vlad Zakharov Vladislav.Zakharov at synopsys.com
Tue Nov 22 16:54:49 CET 2016


This patch series replaces legacy approach to access ARC timer
via specific code in "arch/arc/lib/time.c" and uses timer
driver instead.

ARC cores may have up to 2 built-in timers: timer0 and timer1,
usually at least one of them exists.

They are controlled through auxiliary registers and so we
don't have to remap their control registers as we used to do
with MMIO registers of external peripheral devices.

Cc: Simon Glass <sjg at chromium.org>
---
Changes v3..v4:
 - Remove CONFIG_SYS_TIMER_RATE not only from "axs10x.h" but also
from "nsim.h" and "tb100.h".

Vlad Zakharov (2):
  drivers: timer: Introduce ARC timer driver
  arc: use timer driver instead of arch/arc/lib/timer.c

 arch/arc/dts/skeleton.dtsi                   |  6 ++
 arch/arc/include/asm/arcregs.h               |  4 ++
 arch/arc/lib/Makefile                        |  1 -
 arch/arc/lib/timer.c                         | 24 -------
 configs/axs101_defconfig                     |  2 +
 configs/axs103_defconfig                     |  2 +
 configs/nsim_700_defconfig                   |  2 +
 configs/nsim_700be_defconfig                 |  2 +
 configs/nsim_hs38_defconfig                  |  2 +
 configs/nsim_hs38be_defconfig                |  2 +
 configs/tb100_defconfig                      |  2 +
 doc/device-tree-bindings/timer/arc_timer.txt | 24 +++++++
 drivers/timer/Kconfig                        |  7 ++
 drivers/timer/Makefile                       |  1 +
 drivers/timer/arc_timer.c                    | 95 ++++++++++++++++++++++++++++
 include/configs/axs10x.h                     |  2 -
 16 files changed, 151 insertions(+), 27 deletions(-)
 delete mode 100644 arch/arc/lib/timer.c
 create mode 100644 doc/device-tree-bindings/timer/arc_timer.txt
 create mode 100644 drivers/timer/arc_timer.c

-- 
2.7.4



More information about the U-Boot mailing list