From patchwork Fri Apr 14 07:33:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 13211074 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 456D9C77B71 for ; Fri, 14 Apr 2023 07:35:07 +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=UZucrNwns8BKm/tZhfVfTPMwUjUfJ882yHCqO6fAluQ=; b=BoZi/c30XgU4Ea +rSu9BVpcbOCDE6H3HSKoYpKcRgLcGjsBxnFabmcYLiQ/3dKbFOdAzwmBgVbuDYvSEGLlMWDDCTia gvExPQelBZ0bvSmAvjJq6Z9Cf/uRf2+BFiq0wKOjUj/R9vs+9ka4VKvFS0Vm6bh4k9qo/gYJ91qZP NnYdStcpfkXd2ZpMg/NtEpB/9PmKnmlGtuZXJm51PrTVwG13cU9hdvLTRreDwZM40oWY9PaiIavtx w5JHXB5tFOmFzJ4/1KQjMM9vPp6KorOsOKJtoeHLlMAyooSMhaqQu6evaNoSGfA4q9tfDmBkMwcT5 +WMdbI5wUaZ6UC/+z4ew==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pnDwf-008Yfg-0E; Fri, 14 Apr 2023 07:34:09 +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 1pnDwK-008YTn-1S for linux-arm-kernel@lists.infradead.org; Fri, 14 Apr 2023 07:33:52 +0000 Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 33E7XZoc010931; Fri, 14 Apr 2023 02:33:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1681457615; bh=JxDfSsK08/rjTYb60J8bLnFoncQAq6orxeKt3OQMQJM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=JHOIUrNcDLQJN0GcmfoG3lZZ0h2qeuBWX+4ZHFHNrUdOY26mmOJcCWHA9+7rDcqow FEZJmYuORAMPTVdXs4rZQt/mM7m1xZNFq09NwN2tYvq/7+Ht2q+ph9JSL1unPS/JkM y4Q+B2KMi42m92xYClVHfwF4G0g/Y7nWR6kGYuUk= Received: from DFLE108.ent.ti.com (dfle108.ent.ti.com [10.64.6.29]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 33E7XZQN023513 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 14 Apr 2023 02:33:35 -0500 Received: from DFLE115.ent.ti.com (10.64.6.36) by DFLE108.ent.ti.com (10.64.6.29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Fri, 14 Apr 2023 02:33:34 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) 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; Fri, 14 Apr 2023 02:33:34 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 33E7XYGb055402; Fri, 14 Apr 2023 02:33:34 -0500 From: Nishanth Menon To: Krzysztof Kozlowski , Rob Herring CC: , , , Tero Kristo , Vignesh Raghavendra , Nishanth Menon , Neha Malcom Francis , Nikhil M Jain , Tom Rini Subject: [PATCH 09/10] arm64: dts: ti: k3-am642-evm: Add VTT GPIO regulator for DDR Date: Fri, 14 Apr 2023 02:33:27 -0500 Message-ID: <20230414073328.381336-10-nm@ti.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230414073328.381336-1-nm@ti.com> References: <20230414073328.381336-1-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-20230414_003348_611995_C6B1FF96 X-CRM114-Status: UNSURE ( 9.54 ) X-CRM114-Notice: Please train this message. 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 Hold the DDR vtt regulator active for functionality. Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts index 9cf181d0199f..3d0b473d5252 100644 --- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts @@ -148,6 +148,20 @@ vddb: regulator-4 { regulator-boot-on; }; + vtt_supply: regulator-5 { + compatible = "regulator-fixed"; + regulator-name = "vtt"; + pinctrl-names = "default"; + pinctrl-0 = <&ddr_vtt_pins_default>; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + gpio = <&main_gpio0 12 GPIO_ACTIVE_HIGH>; + vin-supply = <&vsys_3v3>; + enable-active-high; + regulator-always-on; + regulator-boot-on; + }; + leds { compatible = "gpio-leds"; @@ -338,6 +352,12 @@ AM64X_IOPAD(0x025c, PIN_INPUT, 0) /* (D17) MCAN1_RX */ AM64X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (C17) MCAN1_TX */ >; }; + + ddr_vtt_pins_default: ddr-vtt-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0030, PIN_OUTPUT_PULLUP, 7) /* (L18) OSPI0_CSN1.GPIO0_12 */ + >; + }; }; &main_uart0 {