From mboxrd@z Thu Jan 1 00:00:00 1970 From: daniel.lezcano@linaro.org (Daniel Lezcano) Date: Thu, 07 Nov 2013 12:03:51 +0100 Subject: [PATCH v2 0/5] Allwinner SoCs High Speed Timer support In-Reply-To: <1382706463-3892-1-git-send-email-maxime.ripard@free-electrons.com> References: <1382706463-3892-1-git-send-email-maxime.ripard@free-electrons.com> Message-ID: <527B7397.9020208@linaro.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 10/25/2013 03:07 PM, Maxime Ripard wrote: > Hi everyone, > > Here is a few patches adding support for the High Speed Timers running on the > Allwinner SoCs. > > These timers are 64 bits timers running at a much higher speed than the timers > used for now on these SoCs, since they are no longer wired to the 24MHz > oscillator, but to the AHB clock. > > This HS timers are actually found in all the supported SoCs but the A10. > However, the A20 and A31 come with 4 of these high speed timers, while the A10s > and A13 only have two, hence why we introduce two different compatibles. > > The A31 is not using these for now, as its timers are asserted in reset by a > reset controller that first need to gain some support in the kernel first, but > that's for another patchset. Hi Maxime, the patchset is applied in my tree for 3.14. Fixed a trivial conflict in the arch/arm/mach-sunxi/Kconfig Thanks ! -- Daniel > Changes from v1: > - Reported correctly the minimum ticks we can set > - No longer use the HS timers as the default timers in the system > - Removed the IRQF_DISABLED interrupt flag > - Filled the irq clock_event_device field > - Changed the cpumask to cpu_possible_mask > > Maxime Ripard (5): > clocksource: sun4i: Increase a bit the clock event and sources rating > clocksource: Add Allwinner SoCs HS timers driver > ARM: sun5i: a10s: Add support for the High Speed Timers > ARM: sun5i: a13: Add support for the High Speed Timers > ARM: sun7i: a20: Add support for the High Speed Timers > > .../bindings/timer/allwinner,sun5i-a13-hstimer.txt | 22 +++ > arch/arm/boot/dts/sun5i-a10s.dtsi | 7 + > arch/arm/boot/dts/sun5i-a13.dtsi | 7 + > arch/arm/boot/dts/sun7i-a20.dtsi | 10 ++ > arch/arm/mach-sunxi/Kconfig | 1 + > drivers/clocksource/Kconfig | 4 + > drivers/clocksource/Makefile | 1 + > drivers/clocksource/sun4i_timer.c | 4 +- > drivers/clocksource/timer-sun5i.c | 192 +++++++++++++++++++++ > 9 files changed, 246 insertions(+), 2 deletions(-) > create mode 100644 Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt > create mode 100644 drivers/clocksource/timer-sun5i.c > -- Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754199Ab3KGLD4 (ORCPT ); Thu, 7 Nov 2013 06:03:56 -0500 Received: from mail-bk0-f54.google.com ([209.85.214.54]:49160 "EHLO mail-bk0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752737Ab3KGLDy (ORCPT ); Thu, 7 Nov 2013 06:03:54 -0500 Message-ID: <527B7397.9020208@linaro.org> Date: Thu, 07 Nov 2013 12:03:51 +0100 From: Daniel Lezcano User-Agent: Mozilla/5.0 (X11; Linux i686; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: Maxime Ripard , tglx@linutronix.de CC: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sboyd@codeaurora.org, kevin.z.m.zh@gmail.com, sunny@allwinnertech.com, shuge@allwinnertech.com, zhuzhenhua@allwinnertech.com, Gregory Clement Subject: Re: [PATCH v2 0/5] Allwinner SoCs High Speed Timer support References: <1382706463-3892-1-git-send-email-maxime.ripard@free-electrons.com> In-Reply-To: <1382706463-3892-1-git-send-email-maxime.ripard@free-electrons.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/25/2013 03:07 PM, Maxime Ripard wrote: > Hi everyone, > > Here is a few patches adding support for the High Speed Timers running on the > Allwinner SoCs. > > These timers are 64 bits timers running at a much higher speed than the timers > used for now on these SoCs, since they are no longer wired to the 24MHz > oscillator, but to the AHB clock. > > This HS timers are actually found in all the supported SoCs but the A10. > However, the A20 and A31 come with 4 of these high speed timers, while the A10s > and A13 only have two, hence why we introduce two different compatibles. > > The A31 is not using these for now, as its timers are asserted in reset by a > reset controller that first need to gain some support in the kernel first, but > that's for another patchset. Hi Maxime, the patchset is applied in my tree for 3.14. Fixed a trivial conflict in the arch/arm/mach-sunxi/Kconfig Thanks ! -- Daniel > Changes from v1: > - Reported correctly the minimum ticks we can set > - No longer use the HS timers as the default timers in the system > - Removed the IRQF_DISABLED interrupt flag > - Filled the irq clock_event_device field > - Changed the cpumask to cpu_possible_mask > > Maxime Ripard (5): > clocksource: sun4i: Increase a bit the clock event and sources rating > clocksource: Add Allwinner SoCs HS timers driver > ARM: sun5i: a10s: Add support for the High Speed Timers > ARM: sun5i: a13: Add support for the High Speed Timers > ARM: sun7i: a20: Add support for the High Speed Timers > > .../bindings/timer/allwinner,sun5i-a13-hstimer.txt | 22 +++ > arch/arm/boot/dts/sun5i-a10s.dtsi | 7 + > arch/arm/boot/dts/sun5i-a13.dtsi | 7 + > arch/arm/boot/dts/sun7i-a20.dtsi | 10 ++ > arch/arm/mach-sunxi/Kconfig | 1 + > drivers/clocksource/Kconfig | 4 + > drivers/clocksource/Makefile | 1 + > drivers/clocksource/sun4i_timer.c | 4 +- > drivers/clocksource/timer-sun5i.c | 192 +++++++++++++++++++++ > 9 files changed, 246 insertions(+), 2 deletions(-) > create mode 100644 Documentation/devicetree/bindings/timer/allwinner,sun5i-a13-hstimer.txt > create mode 100644 drivers/clocksource/timer-sun5i.c > -- Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog