From patchwork Wed Mar 15 17:07:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 13176392 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 068D5C74A5B for ; Wed, 15 Mar 2023 17:08:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=UGuF/fWa2z+rBr3/NEJJVVeI6l/GjKAEHgOXh7FgTH0=; b=UGZtRL8PKrcCUJ 2dJZ6kHk8DmnZKOLmnb1p73o4WtIrnt3aYhekn+WISAKCTzdYngdtQJXMV8lF3hhwHeuSFsP+QozI STAOFYN+NIrt3aY2o5Int+ziAQvNEqsF0TVF2t4XwLszeqikuQqweK31o9GDdJPoLv5xjGYmygUNN 1/RbpVnKGx0FjCPdDQFVzqFaO3VcYis+iE54pA7Xcq22RHx/YLnNmalz0SgkL41Bd6akrEUl1mu0D NvOgCNG2k1xl3hasN1DoHs0b43ULa+iVc2scJT/+flEjgfFrWwnE2XDyNMkT6A0Zdh67mczxBKL+D c3DNcMiyRSs9zUTtRolg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pcUb5-00E73E-1f; Wed, 15 Mar 2023 17:07:31 +0000 Received: from lelv0143.ext.ti.com ([198.47.23.248]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pcUb0-00E70l-0z for linux-arm-kernel@lists.infradead.org; Wed, 15 Mar 2023 17:07:27 +0000 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 32FH7H57101852; Wed, 15 Mar 2023 12:07:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1678900037; bh=8+w+pfbSsPu1plMDDQu+ie50Wlvcu3Kg7I9tYhbBfUk=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=in/NK48N8oyQZEhtRSrkPk1ISjTI1BjNZsiXAPsvpnGrDUzsn9/5bc8NYo7l87JO8 Pj030rw9hk83lBrd4TuDVWWltyHaOKvs7/CHQVOUkul3rr3vixT6230RznmjFexR0R ZNpACxq75iUzGl3oXE8jqXfBQYH3LcTDELxdNtvE= Received: from DFLE102.ent.ti.com (dfle102.ent.ti.com [10.64.6.23]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 32FH7Hee118093 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 15 Mar 2023 12:07:17 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Wed, 15 Mar 2023 12:07:16 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DFLE115.ent.ti.com (10.64.6.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Wed, 15 Mar 2023 12:07:16 -0500 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 32FH7GdA076807; Wed, 15 Mar 2023 12:07:16 -0500 From: Nishanth Menon To: Krzysztof Kozlowski , Rob Herring CC: , , , Tero Kristo , Vignesh Raghavendra , Nishanth Menon , Julien Panis Subject: [PATCH V2 2/2] arm64: dts: ti: k3-am62: Add watchdog nodes Date: Wed, 15 Mar 2023 12:07:06 -0500 Message-ID: <20230315170706.1598977-3-nm@ti.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230315170706.1598977-1-nm@ti.com> References: <20230315170706.1598977-1-nm@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230315_100726_428071_512BFB72 X-CRM114-Status: GOOD ( 10.47 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Julien Panis Add nodes for watchdogs : - 5 in main domain - 1 in MCU domain - 1 in wakeup domain Signed-off-by: Julien Panis Signed-off-by: Nishanth Menon --- Changes since V1: - On attempting to bring up MCU M4F, we realized that MCU RTI is tightly coupled with M4F and this instance is meant to be operated by MCU M4F. So, mark it as reserved by default, there is no generic case where A53 benefits with MCU RTI. V1: https://lore.kernel.org/r/20230311105850.21811-3-nm@ti.com arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 45 ++++++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi | 11 ++++++ arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 11 ++++++ 3 files changed, 67 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi index ea683fd77d6a..90d5f145de4f 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi @@ -758,6 +758,51 @@ main_mcan0: can@20701000 { status = "disabled"; }; + main_rti0: watchdog@e000000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x0e000000 0x00 0x100>; + clocks = <&k3_clks 125 0>; + power-domains = <&k3_pds 125 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 125 0>; + assigned-clock-parents = <&k3_clks 125 2>; + }; + + main_rti1: watchdog@e010000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x0e010000 0x00 0x100>; + clocks = <&k3_clks 126 0>; + power-domains = <&k3_pds 126 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 126 0>; + assigned-clock-parents = <&k3_clks 126 2>; + }; + + main_rti2: watchdog@e020000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x0e020000 0x00 0x100>; + clocks = <&k3_clks 127 0>; + power-domains = <&k3_pds 127 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 127 0>; + assigned-clock-parents = <&k3_clks 127 2>; + }; + + main_rti3: watchdog@e030000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x0e030000 0x00 0x100>; + clocks = <&k3_clks 128 0>; + power-domains = <&k3_pds 128 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 128 0>; + assigned-clock-parents = <&k3_clks 128 2>; + }; + + main_rti4: watchdog@e0f0000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x0e0f0000 0x00 0x100>; + clocks = <&k3_clks 130 0>; + power-domains = <&k3_pds 130 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 130 0>; + assigned-clock-parents = <&k3_clks 130 2>; + }; + epwm0: pwm@23000000 { compatible = "ti,am64-epwm", "ti,am3352-ehrpwm"; #pwm-cells = <3>; diff --git a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi index a427231527c3..076601a41e84 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi @@ -130,4 +130,15 @@ mcu_gpio0: gpio@4201000 { clocks = <&k3_clks 79 0>; clock-names = "gpio"; }; + + mcu_rti0: watchdog@4880000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x04880000 0x00 0x100>; + clocks = <&k3_clks 131 0>; + power-domains = <&k3_pds 131 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 131 0>; + assigned-clock-parents = <&k3_clks 131 2>; + /* Tightly coupled to M4F */ + status = "reserved"; + }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi index fec81546fbbd..7726ebae2539 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi @@ -50,4 +50,15 @@ wkup_rtc0: rtc@2b1f0000 { power-domains = <&k3_pds 117 TI_SCI_PD_EXCLUSIVE>; wakeup-source; }; + + wkup_rti0: watchdog@2b000000 { + compatible = "ti,j7-rti-wdt"; + reg = <0x00 0x2b000000 0x00 0x100>; + clocks = <&k3_clks 132 0>; + power-domains = <&k3_pds 132 TI_SCI_PD_EXCLUSIVE>; + assigned-clocks = <&k3_clks 132 0>; + assigned-clock-parents = <&k3_clks 132 2>; + /* Used by DM firmware */ + status = "reserved"; + }; };