From: Suman Anna <s-anna@ti.com> To: Tony Lindgren <tony@atomide.com> Cc: <linux-omap@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, Tero Kristo <t-kristo@ti.com>, Suman Anna <s-anna@ti.com> Subject: [PATCH 11/13] ARM: dts: omap5-uevm: Add system timers to DSP and IPU Date: Thu, 9 Jul 2020 18:19:52 -0500 [thread overview] Message-ID: <20200709231954.1973-12-s-anna@ti.com> (raw) In-Reply-To: <20200709231954.1973-1-s-anna@ti.com> The BIOS System Tick timers have been added for the IPU and DSP remoteproc devices for the OMAP5 uEVM boards. The following timers (same as the timers on OMAP4 Panda boards) are chosen: IPU : GPT3 (SMP-mode) DSP : GPT5 IPU has two Cortex-M4 processors, and is currently expected to be running in SMP-mode, so only a single timer suffices to provide the BIOS tick timer. An additional timer should be added for the second processor in IPU if it were to be run in non-SMP mode. The timer value also needs to be unique from the ones used by other processors so that they can be run simultaneously. The timers are optional, but are mandatory to support device management features such as power management and watchdog support. The above are added to successfully boot and execute firmware images configured with the respective timers, images that use internal processor subsystem timers are not affected. The timers can be changed or removed as per the system integration needs, alongside equivalent changes on the firmware side. Signed-off-by: Suman Anna <s-anna@ti.com> --- arch/arm/boot/dts/omap5-uevm.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index 251885656697..bb016419ef61 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -222,9 +222,11 @@ &wlcore { &dsp { status = "okay"; memory-region = <&dsp_memory_region>; + ti,timers = <&timer5>; }; &ipu { status = "okay"; memory-region = <&ipu_memory_region>; + ti,timers = <&timer3>; }; -- 2.26.0
WARNING: multiple messages have this Message-ID (diff)
From: Suman Anna <s-anna@ti.com> To: Tony Lindgren <tony@atomide.com> Cc: Tero Kristo <t-kristo@ti.com>, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH 11/13] ARM: dts: omap5-uevm: Add system timers to DSP and IPU Date: Thu, 9 Jul 2020 18:19:52 -0500 [thread overview] Message-ID: <20200709231954.1973-12-s-anna@ti.com> (raw) In-Reply-To: <20200709231954.1973-1-s-anna@ti.com> The BIOS System Tick timers have been added for the IPU and DSP remoteproc devices for the OMAP5 uEVM boards. The following timers (same as the timers on OMAP4 Panda boards) are chosen: IPU : GPT3 (SMP-mode) DSP : GPT5 IPU has two Cortex-M4 processors, and is currently expected to be running in SMP-mode, so only a single timer suffices to provide the BIOS tick timer. An additional timer should be added for the second processor in IPU if it were to be run in non-SMP mode. The timer value also needs to be unique from the ones used by other processors so that they can be run simultaneously. The timers are optional, but are mandatory to support device management features such as power management and watchdog support. The above are added to successfully boot and execute firmware images configured with the respective timers, images that use internal processor subsystem timers are not affected. The timers can be changed or removed as per the system integration needs, alongside equivalent changes on the firmware side. Signed-off-by: Suman Anna <s-anna@ti.com> --- arch/arm/boot/dts/omap5-uevm.dts | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts index 251885656697..bb016419ef61 100644 --- a/arch/arm/boot/dts/omap5-uevm.dts +++ b/arch/arm/boot/dts/omap5-uevm.dts @@ -222,9 +222,11 @@ &wlcore { &dsp { status = "okay"; memory-region = <&dsp_memory_region>; + ti,timers = <&timer5>; }; &ipu { status = "okay"; memory-region = <&ipu_memory_region>; + ti,timers = <&timer3>; }; -- 2.26.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-07-09 23:20 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-09 23:19 [PATCH 00/13] Add IPU & DSP remoteprocs on OMAP4 and OMAP5 Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 01/13] ARM: dts: omap4: Add timer_sys_ck clocks for timers Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 02/13] ARM: dts: omap5: " Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 03/13] ARM: dts: omap4: Update the DSP node Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 04/13] ARM: dts: omap4: Add IPU DT node Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 05/13] ARM: dts: omap4: Add aliases for rproc nodes Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 06/13] ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-08-12 5:31 ` Guillaume Tucker 2020-08-12 5:31 ` Guillaume Tucker 2020-08-14 14:32 ` Guillaume Tucker 2020-08-14 14:32 ` Guillaume Tucker 2020-08-14 15:26 ` Suman Anna 2020-08-14 15:26 ` Suman Anna 2020-08-14 16:33 ` Guillaume Tucker 2020-08-14 16:33 ` Guillaume Tucker 2020-08-14 19:33 ` Suman Anna 2020-08-14 19:33 ` Suman Anna 2020-08-20 9:17 ` Guillaume Tucker 2020-08-20 9:17 ` Guillaume Tucker 2020-07-09 23:19 ` [PATCH 07/13] ARM: dts: omap4-panda-common:: Add system timers to DSP and IPU Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 08/13] ARM: dts: omap5: Add DSP and IPU nodes Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 09/13] ARM: dts: omap5: Add aliases for rproc nodes Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 10/13] ARM: dts: omap5-uevm: Add CMA pools and enable IPU & DSP Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` Suman Anna [this message] 2020-07-09 23:19 ` [PATCH 11/13] ARM: dts: omap5-uevm: Add system timers to DSP and IPU Suman Anna 2020-07-09 23:19 ` [PATCH 12/13] ARM: dts: omap4-panda-common: Add watchdog timers for IPU and DSP Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-09 23:19 ` [PATCH 13/13] ARM: dts: omap5-uevm: " Suman Anna 2020-07-09 23:19 ` Suman Anna 2020-07-10 16:58 ` [PATCH 00/13] Add IPU & DSP remoteprocs on OMAP4 and OMAP5 Tony Lindgren 2020-07-10 16:58 ` Tony Lindgren 2020-07-10 17:17 ` Suman Anna 2020-07-10 17:17 ` Suman Anna 2020-07-10 17:28 ` Suman Anna 2020-07-10 17:28 ` Suman Anna 2020-07-10 17:59 ` Tony Lindgren 2020-07-10 17:59 ` Tony Lindgren 2020-07-10 18:29 ` Suman Anna 2020-07-10 18:29 ` Suman Anna 2020-07-10 20:45 ` Suman Anna 2020-07-10 20:45 ` Suman Anna 2020-07-10 22:08 ` Tony Lindgren 2020-07-10 22:08 ` Tony Lindgren 2020-07-10 17:40 ` Tony Lindgren 2020-07-10 17:40 ` Tony Lindgren 2020-07-10 18:24 ` Suman Anna 2020-07-10 18:24 ` Suman Anna 2020-07-13 18:24 ` Tony Lindgren 2020-07-13 18:24 ` Tony Lindgren
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