From: Vlad Zakharov <Vladislav.Zakharov@synopsys.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v3 2/2] arc: use timer driver instead of arch/arc/lib/timer.c
Date: Thu, 17 Nov 2016 16:44:16 +0300 [thread overview]
Message-ID: <1479390256-14716-3-git-send-email-vzakhar@synopsys.com> (raw)
In-Reply-To: <1479390256-14716-1-git-send-email-vzakhar@synopsys.com>
This commit replaces legacy timer code with usage of arc timer
driver.
Also it adds timer0 device tree node with corresponding
"clock-frequency" property.
Therefore we remove legacy CONFIG_SYS_TIMER_RATE config symbol
that is not longer required.
Furthermore the commit selects CONFIG_TIMER and CONFIG_ARC_TIMER
by default when selecting ARC architecture.
Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
No changes compared to v2
arch/Kconfig | 2 ++
arch/arc/dts/skeleton.dtsi | 6 ++++++
arch/arc/lib/Makefile | 1 -
arch/arc/lib/timer.c | 24 ------------------------
include/configs/axs10x.h | 2 --
5 files changed, 8 insertions(+), 27 deletions(-)
delete mode 100644 arch/arc/lib/timer.c
diff --git a/arch/Kconfig b/arch/Kconfig
index ffc7b45..56fa70e 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -12,6 +12,8 @@ config ARC
bool "ARC architecture"
select HAVE_PRIVATE_LIBGCC
select SUPPORT_OF_CONTROL
+ select TIMER
+ select ARC_TIMER
config ARM
bool "ARM architecture"
diff --git a/arch/arc/dts/skeleton.dtsi b/arch/arc/dts/skeleton.dtsi
index b41d241..3e93d697 100644
--- a/arch/arc/dts/skeleton.dtsi
+++ b/arch/arc/dts/skeleton.dtsi
@@ -10,4 +10,10 @@
chosen { };
aliases { };
memory { device_type = "memory"; reg = <0 0>; };
+
+ timer at 0 {
+ compatible = "snps,arc-timer";
+ clock-frequency = <100000000>;
+ reg = <0>;
+ };
};
diff --git a/arch/arc/lib/Makefile b/arch/arc/lib/Makefile
index eb62b3c..12097bf 100644
--- a/arch/arc/lib/Makefile
+++ b/arch/arc/lib/Makefile
@@ -18,7 +18,6 @@ obj-y += memcmp.o
obj-y += memcpy-700.o
obj-y += memset.o
obj-y += reset.o
-obj-y += timer.o
obj-y += ints_low.o
obj-y += init_helpers.o
diff --git a/arch/arc/lib/timer.c b/arch/arc/lib/timer.c
deleted file mode 100644
index a0acbbc..0000000
--- a/arch/arc/lib/timer.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/*
- * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <asm/arcregs.h>
-
-#define NH_MODE (1 << 1) /* Disable timer if CPU is halted */
-
-int timer_init(void)
-{
- write_aux_reg(ARC_AUX_TIMER0_CTRL, NH_MODE);
- /* Set max value for counter/timer */
- write_aux_reg(ARC_AUX_TIMER0_LIMIT, 0xffffffff);
- /* Set initial count value and restart counter/timer */
- write_aux_reg(ARC_AUX_TIMER0_CNT, 0);
- return 0;
-}
-
-unsigned long timer_read_counter(void)
-{
- return read_aux_reg(ARC_AUX_TIMER0_CNT);
-}
diff --git a/include/configs/axs10x.h b/include/configs/axs10x.h
index 3546c8d..0476223 100644
--- a/include/configs/axs10x.h
+++ b/include/configs/axs10x.h
@@ -11,8 +11,6 @@
/*
* CPU configuration
*/
-#define CONFIG_SYS_TIMER_RATE CONFIG_SYS_CLK_FREQ
-
#define ARC_FPGA_PERIPHERAL_BASE 0xE0000000
#define ARC_APB_PERIPHERAL_BASE 0xF0000000
#define ARC_DWMMC_BASE (ARC_FPGA_PERIPHERAL_BASE + 0x15000)
--
2.7.4
prev parent reply other threads:[~2016-11-17 13:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-17 13:44 [U-Boot] [PATCH v3 0/2] drivers: timer: inroduce ARC timer driver Vlad Zakharov
2016-11-17 13:44 ` [U-Boot] [PATCH v3 1/2] drivers: timer: Introduce " Vlad Zakharov
2016-11-17 13:44 ` Vlad Zakharov [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1479390256-14716-3-git-send-email-vzakhar@synopsys.com \
--to=vladislav.zakharov@synopsys.com \
--cc=u-boot@lists.denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.