diff mbox series

[v2] clocksource/drivers/arm_arch_timer: Fix CNTPCT_LO and CNTVCT_LO value

Message ID 20220927033221.49589-1-zhangshaokun@hisilicon.com (mailing list archive)
State New, archived
Headers show
Series [v2] clocksource/drivers/arm_arch_timer: Fix CNTPCT_LO and CNTVCT_LO value | expand

Commit Message

Shaokun Zhang Sept. 27, 2022, 3:32 a.m. UTC 
From: Yang Guo <guoyang2@huawei.com>

CNTPCT_LO and CNTVCT_LO are defined by mistake in commit '8b82c4f883a7',
so fix them according to the Arm ARM DDI 0487I.a, Table I2-4
"CNTBaseN memory map" as follows:

Offset    Register      Type Description
0x000     CNTPCT[31:0]  RO   Physical Count register.
0x004     CNTPCT[63:32] RO
0x008     CNTVCT[31:0]  RO   Virtual Count register.
0x00C     CNTVCT[63:32] RO

Fixes: 8b82c4f883a7 ("clocksource/drivers/arm_arch_timer: Move MMIO timer programming over to CVAL")
Cc: stable@vger.kernel.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Yang Guo <guoyang2@huawei.com>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
---
 drivers/clocksource/arm_arch_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Daniel Lezcano Sept. 27, 2022, 9:32 a.m. UTC | #1 
On 27/09/2022 05:32, Shaokun Zhang wrote:
> From: Yang Guo <guoyang2@huawei.com>
> 
> CNTPCT_LO and CNTVCT_LO are defined by mistake in commit '8b82c4f883a7',
> so fix them according to the Arm ARM DDI 0487I.a, Table I2-4
> "CNTBaseN memory map" as follows:
> 
> Offset    Register      Type Description
> 0x000     CNTPCT[31:0]  RO   Physical Count register.
> 0x004     CNTPCT[63:32] RO
> 0x008     CNTVCT[31:0]  RO   Virtual Count register.
> 0x00C     CNTVCT[63:32] RO
> 
> Fixes: 8b82c4f883a7 ("clocksource/drivers/arm_arch_timer: Move MMIO timer programming over to CVAL")
> Cc: stable@vger.kernel.org
> Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Cc: Marc Zyngier <maz@kernel.org>
> Cc: Mark Rutland <mark.rutland@arm.com>
> Acked-by: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Yang Guo <guoyang2@huawei.com>
> Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
> ---

Applied, thanks

>   drivers/clocksource/arm_arch_timer.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
> index 9ab8221ee3c6..8122a1646925 100644
> --- a/drivers/clocksource/arm_arch_timer.c
> +++ b/drivers/clocksource/arm_arch_timer.c
> @@ -44,8 +44,8 @@
>   #define CNTACR_RWVT	BIT(4)
>   #define CNTACR_RWPT	BIT(5)
>   
> -#define CNTVCT_LO	0x00
> -#define CNTPCT_LO	0x08
> +#define CNTPCT_LO	0x00
> +#define CNTVCT_LO	0x08
>   #define CNTFRQ		0x10
>   #define CNTP_CVAL_LO	0x20
>   #define CNTP_CTL	0x2c
diff mbox series

Patch

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 9ab8221ee3c6..8122a1646925 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -44,8 +44,8 @@ 
 #define CNTACR_RWVT	BIT(4)
 #define CNTACR_RWPT	BIT(5)
 
-#define CNTVCT_LO	0x00
-#define CNTPCT_LO	0x08
+#define CNTPCT_LO	0x00
+#define CNTVCT_LO	0x08
 #define CNTFRQ		0x10
 #define CNTP_CVAL_LO	0x20
 #define CNTP_CTL	0x2c