From patchwork Thu Jun 1 09:37:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Kumar, Udit" X-Patchwork-Id: 13263230 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 A6E2BC7EE23 for ; Thu, 1 Jun 2023 09:39:11 +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=qO8nw8EwBQrOr1/B6JUfOAq6ILtRqxP3Vsh7UrDtURc=; b=Zklt+n0Cg7Pj08 GcVsTFVLl5vob9iDsiUOlMjASPKLQj/d1o7RSGK1BE3N0vo5FiAOhU+3CWMOCwxNKsYRzgkDTM3Da /N0mDLBUajkRKmJQWqgsgrlkJlMeFpM2LwiKMVZZrhXv+Rqx2hWr+2kf37gTI4v3elbOspEb6nPCG R8Hlpphi+tAJyDnDBrSO0ZyJoQYDwahPnyjhkC/R2tTtnhvBwLCIKVJLevi8BbvoQ0DHNhfwYuf5s RaBXZYhsYLTBAm71GhByKccVpnFfd+9o/Hs2CmochcuJP0uHbbDBZ6VNhwzebV5PKa3VCftLByJb8 FboSzkSVyvvzuPL/dsBg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q4eld-002kop-0p; Thu, 01 Jun 2023 09:38:49 +0000 Received: from fllv0016.ext.ti.com ([198.47.19.142]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q4ela-002kn5-0z for linux-arm-kernel@lists.infradead.org; Thu, 01 Jun 2023 09:38:47 +0000 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 3519cYtR102210; Thu, 1 Jun 2023 04:38:34 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1685612314; bh=dzR/M89RZSFt3KI0fZN4F/Ibnuh5m91ANq22uH4vIAY=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=npV0p7iHHf6PIUqZKgXRW1bcua1urrppso4+nk5Mddxow0PUiWBMwb9xATX03C3DD ifz5cgzxAoZQOeKr/xVpWvLrSabiNICkTzGAsj+9yKUbANc4zssXXLiPtfOXNZ9rOb 2ifdCeJsO4h3rYPKbif3X0Tcar94W/mxs/1p/IZc= Received: from DLEE112.ent.ti.com (dlee112.ent.ti.com [157.170.170.23]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 3519cYvW040582 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 1 Jun 2023 04:38:34 -0500 Received: from DLEE109.ent.ti.com (157.170.170.41) by DLEE112.ent.ti.com (157.170.170.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Thu, 1 Jun 2023 04:38:34 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE109.ent.ti.com (157.170.170.41) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Thu, 1 Jun 2023 04:38:34 -0500 Received: from udit-HP-Z2-Tower-G9-Workstation-Desktop-PC.dhcp.ti.com (ileaxei01-snat.itg.ti.com [10.180.69.5]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 3519cNqU072495; Thu, 1 Jun 2023 04:38:30 -0500 From: Udit Kumar To: , , , , , , , , , , CC: Udit Kumar , Tony Lindgren Subject: [PATCH v2 2/5] arm64: dts: ti: k3-j7200: Configure pinctrl for timer IO pads Date: Thu, 1 Jun 2023 15:07:41 +0530 Message-ID: <20230601093744.1565802-3-u-kumar1@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230601093744.1565802-1-u-kumar1@ti.com> References: <20230601093744.1565802-1-u-kumar1@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-20230601_023846_427613_6CCF7FF5 X-CRM114-Status: GOOD ( 14.25 ) 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 There are timer IO pads in the MCU domain, and in the MAIN domain. These pads can be muxed for the related timers. There are timer IO control registers for input and output. The registers for CTRLMMR_TIMER*_CTRL and CTRLMMR_MCU_TIMER*_CTRL are used to control the input. The registers for CTCTRLMMR_TIMERIO*_CTRL and CTRLMMR_MCU_TIMERIO*_CTRL the output. The multiplexing is documented in TRM "5.1.2.3.1.4 Timer IO Muxing Control Registers" and "5.1.3.3.1.5 Timer IO Muxing Control Registers", and the CASCADE_EN bit is documented in TRM "12.6.3.1 Timers Overview". For chaining timers, the timer IO control registers also have a CASCADE_EN input bit in the CTRLMMR_TIMER*_CTRL in the registers. The CASCADE_EN bit muxes the previous timer output, or possibly and external TIMER_IO pad source, to the input clock of the selected timer instance for odd numered timers. For the even numbered timers, the CASCADE_EN bit does not do anything. The timer cascade input routing options are shown in TRM "Figure 12-3224. Timers Overview". For handling beyond multiplexing, the driver support for timer cascading should be likely be handled via the clock framework. The MCU timer controls are also marked as reserved for usage by the MCU firmware. Cc: Nishanth Menon Cc: Vignesh Raghavendra Cc: Tony Lindgren Signed-off-by: Udit Kumar Reviewed-by: Tony Lindgren --- arch/arm64/boot/dts/ti/k3-j7200-main.dtsi | 18 +++++++++++++++++ .../boot/dts/ti/k3-j7200-mcu-wakeup.dtsi | 20 +++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi index c6b15aceea82..a9b3bf8a5c6a 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-main.dtsi @@ -392,6 +392,24 @@ cpts@3d000 { }; }; + /* TIMERIO pad input CTRLMMR_TIMER*_CTRL registers */ + main_timerio_input: pinctrl@104200 { + compatible = "pinctrl-single"; + reg = <0x0 0x104200 0x0 0x50>; + #pinctrl-cells = <1>; + pinctrl-single,register-width = <32>; + pinctrl-single,function-mask = <0x000001ff>; + }; + + /* TIMERIO pad output CTCTRLMMR_TIMERIO*_CTRL registers */ + main_timerio_output: pinctrl@104280 { + compatible = "pinctrl-single"; + reg = <0x0 0x104280 0x0 0x20>; + #pinctrl-cells = <1>; + pinctrl-single,register-width = <32>; + pinctrl-single,function-mask = <0x0000001f>; + }; + main_pmx0: pinctrl@11c000 { compatible = "pinctrl-single"; /* Proxy 0 addressing */ diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi index dcb6696cff17..b518ec9eea32 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi @@ -183,6 +183,26 @@ chipid@43000014 { reg = <0x00 0x43000014 0x00 0x4>; }; + /* MCU_TIMERIO pad input CTRLMMR_MCU_TIMER*_CTRL registers */ + mcu_timerio_input: pinctrl@40f04200 { + compatible = "pinctrl-single"; + reg = <0x0 0x40f04200 0x0 0x28>; + #pinctrl-cells = <1>; + pinctrl-single,register-width = <32>; + pinctrl-single,function-mask = <0x0000000F>; + status = "reserved"; + }; + + /* MCU_TIMERIO pad output CTRLMMR_MCU_TIMERIO*_CTRL registers */ + mcu_timerio_output: pinctrl@40f04280 { + compatible = "pinctrl-single"; + reg = <0x0 0x40f04280 0x0 0x28>; + #pinctrl-cells = <1>; + pinctrl-single,register-width = <32>; + pinctrl-single,function-mask = <0x0000000F>; + status = "reserved"; + }; + wkup_pmx0: pinctrl@4301c000 { compatible = "pinctrl-single"; /* Proxy 0 addressing */