This patch adds the support for Exynos 64bit SoC. The delay_timer is only used
for Exynos 32bit SoC.
Cc: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
drivers/clocksource/Kconfig | 1 -
drivers/clocksource/exynos_mct.c | 4 ++++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 9042060..27ef3fa 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -134,7 +134,6 @@ config CLKSRC_METAG_GENERIC
config CLKSRC_EXYNOS_MCT
def_bool y if ARCH_EXYNOS
- depends on !ARM64
help
Support for Multi Core Timer controller on Exynos SoCs.
diff --git a/drivers/clocksource/exynos_mct.c b/drivers/clocksource/exynos_mct.c
index 9403061..b840ea1 100644
--- a/drivers/clocksource/exynos_mct.c
+++ b/drivers/clocksource/exynos_mct.c
@@ -223,6 +223,7 @@ static u64 notrace exynos4_read_sched_clock(void)
return exynos4_read_count_32();
}
+#if defined(CONFIG_ARM)
static struct delay_timer exynos4_delay_timer;
static cycles_t exynos4_read_current_timer(void)
@@ -231,14 +232,17 @@ static cycles_t exynos4_read_current_timer(void)
"cycles_t needs to move to 32-bit for ARM64 usage");
return exynos4_read_count_32();
}
+#endif
static void __init exynos4_clocksource_init(void)
{
exynos4_mct_frc_start();
+#if defined(CONFIG_ARM)
exynos4_delay_timer.read_current_timer = &exynos4_read_current_timer;
exynos4_delay_timer.freq = clk_rate;
register_current_timer_delay(&exynos4_delay_timer);
+#endif
if (clocksource_register_hz(&mct_frc, clk_rate))
panic("%s: can't register clocksource\n", mct_frc.name);
--
1.8.5.5
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