From patchwork Tue Apr 18 01:27:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 13214936 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 A38B7C77B72 for ; Tue, 18 Apr 2023 01:29:20 +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=BxngEq7VW9LpxeL7W3PvPHZ6Y5jyW16NRGHejcGpd8o=; b=fmlSAUXMGZQ7Dx 2cuOs1imW136xkXNWZazL4jacFircQvP9aW/v4LdS0faujaXCDUrdsa6BIf2Cy9VdbEF6df80xrb6 +Ifvm9D+iC8nsBfFcrW/bNpJKb7X6RSbPRTFWGr8QwujeWodUgEKB0FwMH7zyztc03vql81CpCKfL 4KjysnLYhPblyJTHEj4pbff2D7AJK5KbJ9BzBV7Ish2lJ/iJQHkUSwgM6B8xWqVb6ngsLDm9q9c3r RMiKzm7tUI824GN+qfpZY+5irMaQWWhZJE16HvO6itPO0MIKVwC9BaOtRegcogrA0BvxwoK23ZLUa w9ekOmyzBy1/u5ZXeSLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1poa86-000a7Y-22; Tue, 18 Apr 2023 01:27:34 +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 1poa7y-000a5E-0n for linux-arm-kernel@lists.infradead.org; Tue, 18 Apr 2023 01:27:28 +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 33I1RIQg033013; Mon, 17 Apr 2023 20:27:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1681781238; bh=0cXyxlSxl99ILuMw8BlZnOJ6rb9gZyPUnD9DgLOWFbg=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=KXuHDv2c/rsbp4nd1tXRlVXkUA5Qn9i71aq9TUtCva8Nryx3YWzCHS7xR63VIckID dmBkFG6b35t/urQfqzqcuf2c144yHOgxycCz07JerRvNJXF5DrefPkaJML1LVCVzZc uStUcrBYTNNeugMdITP5qUKhy4XOqByrD7k8/qlA= Received: from DLEE108.ent.ti.com (dlee108.ent.ti.com [157.170.170.38]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 33I1RIsY107380 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 17 Apr 2023 20:27:18 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE108.ent.ti.com (157.170.170.38) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Mon, 17 Apr 2023 20:27:18 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE110.ent.ti.com (157.170.170.21) 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; Mon, 17 Apr 2023 20:27:18 -0500 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 33I1RINi001924; Mon, 17 Apr 2023 20:27:18 -0500 From: Nishanth Menon To: Krzysztof Kozlowski , Rob Herring , Vignesh Raghavendra CC: , , , Tero Kristo , Nishanth Menon , Bryan Brattlof Subject: [PATCH 1/3] arm64: dts: ti: k3-am62a: Add general purpose timers Date: Mon, 17 Apr 2023 20:27:15 -0500 Message-ID: <20230418012717.1230882-2-nm@ti.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230418012717.1230882-1-nm@ti.com> References: <20230418012717.1230882-1-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-20230417_182726_366846_9B961B6A X-CRM114-Status: GOOD ( 12.74 ) 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 Similar to commit 3308a31c507c ("arm64: dts: ti: k3-am62: Add general purpose timers for am62"), there are 12 general purpose timers on am62a7 split between 8 in main and 4 in mcu domains. The 4 in mcu domain do not have interrupts that are routable to a53. We configure the timers with the 25 MHz input clock by default as the 32.768 kHz clock may not be wired on the device. We leave the MCU domain timers clock mux unconfigured, and mark the MCU domain timers reserved. The MCU domain timers are likely reserved by the software for the ESM module. Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62a-main.dtsi | 96 +++++++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi | 45 +++++++++++ 2 files changed, 141 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi index 393a1a40b68b..59d1199e43c9 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-main.dtsi @@ -177,6 +177,102 @@ main_pmx0: pinctrl@f4000 { pinctrl-single,function-mask = <0xffffffff>; }; + main_timer0: timer@2400000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2400000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 36 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 36 2>; + assigned-clock-parents = <&k3_clks 36 3>; + power-domains = <&k3_pds 36 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer1: timer@2410000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2410000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 37 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 37 2>; + assigned-clock-parents = <&k3_clks 37 3>; + power-domains = <&k3_pds 37 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer2: timer@2420000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2420000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 38 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 38 2>; + assigned-clock-parents = <&k3_clks 38 3>; + power-domains = <&k3_pds 38 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer3: timer@2430000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2430000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 39 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 39 2>; + assigned-clock-parents = <&k3_clks 39 3>; + power-domains = <&k3_pds 39 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer4: timer@2440000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2440000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 40 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 40 2>; + assigned-clock-parents = <&k3_clks 40 3>; + power-domains = <&k3_pds 40 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer5: timer@2450000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2450000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 41 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 41 2>; + assigned-clock-parents = <&k3_clks 41 3>; + power-domains = <&k3_pds 41 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer6: timer@2460000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2460000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 42 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 42 2>; + assigned-clock-parents = <&k3_clks 42 3>; + power-domains = <&k3_pds 42 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + + main_timer7: timer@2470000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x2470000 0x00 0x400>; + interrupts = ; + clocks = <&k3_clks 43 2>; + clock-names = "fck"; + assigned-clocks = <&k3_clks 43 2>; + assigned-clock-parents = <&k3_clks 43 3>; + power-domains = <&k3_pds 43 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + }; + main_uart0: serial@2800000 { compatible = "ti,am64-uart", "ti,am654-uart"; reg = <0x00 0x02800000 0x00 0x100>; diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi index 2bb813e784a2..50c94a55fe85 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi @@ -15,6 +15,51 @@ mcu_pmx0: pinctrl@4084000 { status = "disabled"; }; + /* + * The MCU domain timer interrupts are routed only to the ESM module, + * and not currently available for Linux. The MCU domain timers are + * of limited use without interrupts, and likely reserved by the ESM. + */ + mcu_timer0: timer@4800000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x4800000 0x00 0x400>; + clocks = <&k3_clks 35 2>; + clock-names = "fck"; + power-domains = <&k3_pds 35 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + status = "reserved"; + }; + + mcu_timer1: timer@4810000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x4810000 0x00 0x400>; + clocks = <&k3_clks 48 2>; + clock-names = "fck"; + power-domains = <&k3_pds 48 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + status = "reserved"; + }; + + mcu_timer2: timer@4820000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x4820000 0x00 0x400>; + clocks = <&k3_clks 49 2>; + clock-names = "fck"; + power-domains = <&k3_pds 49 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + status = "reserved"; + }; + + mcu_timer3: timer@4830000 { + compatible = "ti,am654-timer"; + reg = <0x00 0x4830000 0x00 0x400>; + clocks = <&k3_clks 50 2>; + clock-names = "fck"; + power-domains = <&k3_pds 50 TI_SCI_PD_EXCLUSIVE>; + ti,timer-pwm; + status = "reserved"; + }; + mcu_uart0: serial@4a00000 { compatible = "ti,am64-uart", "ti,am654-uart"; reg = <0x00 0x04a00000 0x00 0x100>;