arc: use timer driver for ARC boards
This commit replaces legacy timer code with usage of arc timer
driver.
It removes arch/arc/lib/time.c file and selects CONFIG_CLK,
CONFIG_TIMER and CONFIG_ARC_TIMER options for all ARC boards by default.
Therefore we remove CONFIG_CLK option from less common axs101 and
axs103 defconfigs.
Also it removes legacy CONFIG_SYS_TIMER_RATE config symbol from
axs10x.h, tb100.h and nsim.h configs files as it is no longer required.
Signed-off-by: Vlad Zakharov <vzakhar@synopsys.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/Kconfig b/arch/Kconfig
index 76c690f..308c6ea 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -13,6 +13,9 @@
select HAVE_PRIVATE_LIBGCC
select SUPPORT_OF_CONTROL
select ARCH_EARLY_INIT_R
+ select CLK
+ select TIMER
+ select ARC_TIMER
config ARM
bool "ARM architecture"
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 += 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);
-}