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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 12/13] ARM: dts: omap4-panda-common: Add watchdog timers for IPU and DSP
Date: Thu, 9 Jul 2020 18:19:53 -0500
Message-ID: <20200709231954.1973-13-s-anna@ti.com> (raw)
In-Reply-To: <20200709231954.1973-1-s-anna@ti.com>

The watchdog timers have been added for the IPU and DSP remoteproc
devices on all the OMAP4-based Panda boards. The following timers
are used as the watchdog timers,
	DSP : GPT6
	IPU : GPT9 & GPT11 (one for each Cortex-M3 core)

The MPU-side drivers will use this data to initialize the watchdog
timers, and listen for any watchdog triggers. The BIOS-side code
needs to configure and refresh these timers properly to not throw
a watchdog error.

These timers can be changed or removed as per the system integration
needs, alongside appropriate equivalent changes on the firmware side.

Signed-off-by: Suman Anna <s-anna@ti.com>
---
 arch/arm/boot/dts/omap4-panda-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index db0b7e9264f9..a6a0c7b832dd 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -596,10 +596,12 @@ &dsp {
 	status = "okay";
 	memory-region = <&dsp_memory_region>;
 	ti,timers = <&timer5>;
+	ti,watchdog-timers = <&timer6>;
 };
 
 &ipu {
 	status = "okay";
 	memory-region = <&ipu_memory_region>;
 	ti,timers = <&timer3>;
+	ti,watchdog-timers = <&timer9>, <&timer11>;
 };
-- 
2.26.0


  parent reply index

Thread overview: 30+ 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 ` [PATCH 01/13] ARM: dts: omap4: Add timer_sys_ck clocks for timers Suman Anna
2020-07-09 23:19 ` [PATCH 02/13] ARM: dts: omap5: " Suman Anna
2020-07-09 23:19 ` [PATCH 03/13] ARM: dts: omap4: Update the DSP node Suman Anna
2020-07-09 23:19 ` [PATCH 04/13] ARM: dts: omap4: Add IPU DT node 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 ` [PATCH 06/13] ARM: dts: omap4-panda-common: Add CMA pools and enable IPU & DSP Suman Anna
2020-08-12  5:31   ` Guillaume Tucker
2020-08-14 14:32     ` Guillaume Tucker
2020-08-14 15:26       ` Suman Anna
2020-08-14 16:33         ` Guillaume Tucker
2020-08-14 19:33           ` Suman Anna
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 ` [PATCH 08/13] ARM: dts: omap5: Add DSP and IPU nodes 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 ` [PATCH 10/13] ARM: dts: omap5-uevm: Add CMA pools and enable IPU & DSP Suman Anna
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 ` Suman Anna [this message]
2020-07-09 23:19 ` [PATCH 13/13] ARM: dts: omap5-uevm: Add watchdog timers for IPU and DSP Suman Anna
2020-07-10 16:58 ` [PATCH 00/13] Add IPU & DSP remoteprocs on OMAP4 and OMAP5 Tony Lindgren
2020-07-10 17:17   ` Suman Anna
2020-07-10 17:28     ` Suman Anna
2020-07-10 17:59       ` Tony Lindgren
2020-07-10 18:29         ` Suman Anna
2020-07-10 20:45           ` Suman Anna
2020-07-10 22:08             ` Tony Lindgren
2020-07-10 17:40     ` Tony Lindgren
2020-07-10 18:24       ` Suman Anna
2020-07-13 18:24 ` Tony Lindgren

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