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authorJulius Werner <jwerner@chromium.org>2018-08-07 14:02:55 -0700
committerJulius Werner <jwerner@chromium.org>2018-08-10 04:16:06 +0000
commit73be9dd82c033a9bce3fc7ff11dab453e9cfde82 (patch)
tree3515ee34380e7e672ad65d631a2d54c1e45f7f56 /src
parentaf7f9eeddf1e2ffcc17c7a1840aaee76acf9aa8d (diff)
downloadcoreboot-73be9dd82c033a9bce3fc7ff11dab453e9cfde82.tar.xz
arm64: Remove set_cntfrq() function
CNTFRQ_EL0 is a normal AArch64 architectural register like hundreds of others that are all accessed through the raw_(read|write)_${register}() family of functions. There's no reason why this register in particular should have an inconsistent accessor, so replace all instances of set_cntfrq() with raw_write_cntfrq_el0() and get rid of it. Change-Id: I599519ba71c287d4085f9ad28d7349ef0b1eea9b Signed-off-by: Julius Werner <jwerner@chromium.org> Reviewed-on: https://review.coreboot.org/27947 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/arch/arm64/armv8/lib/Makefile.inc2
-rw-r--r--src/arch/arm64/armv8/lib/clock.c27
-rw-r--r--src/arch/arm64/include/arch/clock.h23
-rw-r--r--src/soc/cavium/cn81xx/timer.c4
-rw-r--r--src/soc/nvidia/tegra210/ramstage.c4
5 files changed, 5 insertions, 55 deletions
diff --git a/src/arch/arm64/armv8/lib/Makefile.inc b/src/arch/arm64/armv8/lib/Makefile.inc
index bfc87c38d7..8fc44de5b6 100644
--- a/src/arch/arm64/armv8/lib/Makefile.inc
+++ b/src/arch/arm64/armv8/lib/Makefile.inc
@@ -15,7 +15,7 @@
##
################################################################################
-lib_access = pstate.c sysctrl.c cache.c tlb.c clock.c
+lib_access = pstate.c sysctrl.c cache.c tlb.c
ifeq ($(CONFIG_ARCH_BOOTBLOCK_ARMV8_64),y)
decompressor-y += $(lib_access)
diff --git a/src/arch/arm64/armv8/lib/clock.c b/src/arch/arm64/armv8/lib/clock.c
deleted file mode 100644
index f15adf404d..0000000000
--- a/src/arch/arm64/armv8/lib/clock.c
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Google Inc
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; version 2 of
- * the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * clock.c: Functions for accessing clock and timer related registers
- * Reference: ARM Architecture Reference Manual, ARMv8-A edition
- */
-
-#include <stdint.h>
-
-#include <arch/clock.h>
-
-void set_cntfrq(uint32_t freq)
-{
- __asm__ __volatile__("msr cntfrq_el0, %0" :: "r"((uint64_t)freq));
-}
diff --git a/src/arch/arm64/include/arch/clock.h b/src/arch/arm64/include/arch/clock.h
deleted file mode 100644
index 77d09d8ef0..0000000000
--- a/src/arch/arm64/include/arch/clock.h
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __ARM_CLOCK_H_
-#define __ARM_CLOCK_H_
-
-#include <types.h>
-
-void set_cntfrq(uint32_t);
-
-#endif /* __ARM_CLOCK_H_ */
diff --git a/src/soc/cavium/cn81xx/timer.c b/src/soc/cavium/cn81xx/timer.c
index b1c2285b6d..f2a870adee 100644
--- a/src/soc/cavium/cn81xx/timer.c
+++ b/src/soc/cavium/cn81xx/timer.c
@@ -17,6 +17,7 @@
*/
#include <arch/io.h>
+#include <arch/lib_helpers.h>
#include <console/console.h>
#include <inttypes.h>
#include <soc/clock.h>
@@ -25,7 +26,6 @@
#include <timer.h>
#include <soc/addressmap.h>
#include <assert.h>
-#include <arch/clock.h>
/* Global System Timers Unit (GTI) registers */
struct cn81xx_timer {
@@ -131,7 +131,7 @@ void init_timer(void)
void soc_timer_init(void)
{
- set_cntfrq(tickrate);
+ raw_write_cntfrq_el0(tickrate);
}
/**
diff --git a/src/soc/nvidia/tegra210/ramstage.c b/src/soc/nvidia/tegra210/ramstage.c
index 18fdded800..86fae67c43 100644
--- a/src/soc/nvidia/tegra210/ramstage.c
+++ b/src/soc/nvidia/tegra210/ramstage.c
@@ -13,8 +13,8 @@
* GNU General Public License for more details.
*/
-#include <arch/clock.h>
#include <arch/cpu.h>
+#include <arch/lib_helpers.h>
#include <arch/stages.h>
#include <gic.h>
#include <soc/addressmap.h>
@@ -26,7 +26,7 @@ static void arm64_arch_timer_init(void)
{
uint32_t freq = clock_get_osc_khz() * 1000;
// Set the cntfrq register.
- set_cntfrq(freq);
+ raw_write_cntfrq_el0(freq);
}
static void mselect_enable_wrap(void)