From patchwork Wed Nov 27 09:52:32 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janne Grunau via B4 Relay X-Patchwork-Id: 13886774 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 1086FD609C6 for ; Wed, 27 Nov 2024 09:58:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To: References:Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version: Subject:Date:From:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=LLI6g5qy2kH9XAAblENYMdnCx6l3MPGF4O7KSW4JJp4=; b=apVs7/CU7uXBHrHMaOXdPZZMFb F26mcFkiOWvwpgU3Z4LtPbnUvyAyIvflfGaKPtVJehrjNG9UXaZesQ7/1XmAOcPJuo2RZ7sfHEpNW NnAUUAk7hXBluRomuLWkLsnV6FUwRc9gV2zqgjOPTTNxnKYm6dVtj7VNVzvCS8LDQ3JBuMSyvDgG9 OYV/8qtgD/+JYmizfC2T/0aNhQGf9kuAopO9icJ1hGARo0dx7JIzWQeJRIkG9bJKep/zP9KDVWyF6 Np1525caVSb8/VDZjfFaWxog5sgUTflbfSrYmOAMPoGBZmMMKHqBi7qX/IJRV9ZJMJIRy9X5q0vq5 jx3lIjmg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tGEnv-0000000Cl0n-2DHt; Wed, 27 Nov 2024 09:57:51 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tGEjB-0000000CkEU-2PaE for linux-arm-kernel@lists.infradead.org; Wed, 27 Nov 2024 09:52:59 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 65FCB5C59D7; Wed, 27 Nov 2024 09:52:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 57E3CC4CEE2; Wed, 27 Nov 2024 09:52:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732701176; bh=NtPyrw1FXMvbsmz7Nr23KWeYuAkw5uGGVtbW3/WwzPg=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=YYzGaednPqclMwf88qhc5dBrzUmrgOG4k7qWg+JJOXKeUtWxFmMunTO8WoCMULjMK NUOQR94FyPC2oMsBcvHpF702j2sD+Kx1LG2dJMwNsUjN5sFRwX/ImFzvwPxaQ1iOdr nSnGxjKJUj2a2PBMuPwIP0nxeVh4yGWbGTXBTkqC9tlftfcM6C84hYleeA/pd2tkjU a7ikf9AiRvZq9S3CZ7DRrgnPwM0fQAgiLwUtAkD/Cygl9lWoUdpvP38WEUHr1vhCT4 s+BDrMy1PXdVwFH4VDaxnJEHytlqLp6CsBkhZA0s4ibtldh+wBGhfR/LZSa5YoOjDk wDGNssoFgatlg== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F8BAD609C1; Wed, 27 Nov 2024 09:52:56 +0000 (UTC) From: Janne Grunau via B4 Relay Date: Wed, 27 Nov 2024 10:52:32 +0100 Subject: [PATCH RESEND 5/5] arm64: dts: apple: Add SPI NOR nvram partition to all devices MIME-Version: 1.0 Message-Id: <20241127-asahi-spi-dt-v1-5-907c9447f623@jannau.net> References: <20241127-asahi-spi-dt-v1-0-907c9447f623@jannau.net> In-Reply-To: <20241127-asahi-spi-dt-v1-0-907c9447f623@jannau.net> To: Hector Martin , Sven Peter , Alyssa Rosenzweig , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Janne Grunau X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=3506; i=j@jannau.net; s=yk2024; h=from:subject:message-id; bh=4sH2FvtVOU7J6ZD/GsHPG804yvHnrTdh0gHvxrTVtvc=; b=owGbwMvMwCW2UNrmdq9+ahrjabUkhnS3199yz65NmvRLy/PKvT2HH3orSzo3i20U+PxT+eJJz uZfG5fEdJSyMIhxMciKKbIkab/sYFhdoxhT+yAMZg4rE8gQBi5OAZhIfA3D/6Dd01wWcimWFCQK BD1dH/ZFfEeit7bZrT/GSQxSxe1HJjH84fweaFBQPCFc80/cl5kVc4qTd1yYsytiTXStSmXG9k/ qzAA= X-Developer-Key: i=j@jannau.net; a=openpgp; fpr=8B336A6BE4E5695E89B8532B81E806F586338419 X-Endpoint-Received: by B4 Relay for j@jannau.net/yk2024 with auth_id=264 X-Original-From: Janne Grunau X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241127_015257_709501_DB3AAF01 X-CRM114-Status: GOOD ( 12.19 ) 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: , Reply-To: j@jannau.net Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Janne Grunau All known M1* and M2* devices use an identical SPI NOR flash configuration with a partition containing a non-volatile key:value storage. Use a .dtsi and include it for every device. The nvram partition parameters itself depend on the version of the installed Apple iboot boot loader. m1n1 will fill in the current values provided by Apple's iboot. Signed-off-by: Janne Grunau --- arch/arm64/boot/dts/apple/spi1-nvram.dtsi | 39 ++++++++++++++++++++++++++ arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi | 2 ++ arch/arm64/boot/dts/apple/t600x-j375.dtsi | 2 ++ arch/arm64/boot/dts/apple/t8103-jxxx.dtsi | 2 ++ arch/arm64/boot/dts/apple/t8112-jxxx.dtsi | 2 ++ 5 files changed, 47 insertions(+) diff --git a/arch/arm64/boot/dts/apple/spi1-nvram.dtsi b/arch/arm64/boot/dts/apple/spi1-nvram.dtsi new file mode 100644 index 0000000000000000000000000000000000000000..3df2fd3993b52884d7c00b65099c88d830a7a4c3 --- /dev/null +++ b/arch/arm64/boot/dts/apple/spi1-nvram.dtsi @@ -0,0 +1,39 @@ +// SPDX-License-Identifier: GPL-2.0+ OR MIT +// +// Devicetree include for common spi-nor nvram flash. +// +// Apple uses a consistent configiguration for the nvram on all known M1* and +// M2* devices. +// +// Copyright The Asahi Linux Contributors + +/ { + aliases { + nvram = &nvram; + }; +}; + +&spi1 { + status = "okay"; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0x0>; + spi-max-frequency = <25000000>; + #address-cells = <1>; + #size-cells = <1>; + + partitions { + compatible = "fixed-partitions"; + #address-cells = <1>; + #size-cells = <1>; + + nvram: partition@700000 { + label = "nvram"; + /* To be filled by the loader */ + reg = <0x0 0x0>; + status = "disabled"; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi index 2e471dfe43cf885c1234d36bf0e0acfdc4904621..22ebc78e120bf8f0f71fd532e9dce4dcd117bbc6 100644 --- a/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi +++ b/arch/arm64/boot/dts/apple/t600x-j314-j316.dtsi @@ -119,3 +119,5 @@ sdhci0: mmc@0,0 { &fpwm0 { status = "okay"; }; + +#include "spi1-nvram.dtsi" diff --git a/arch/arm64/boot/dts/apple/t600x-j375.dtsi b/arch/arm64/boot/dts/apple/t600x-j375.dtsi index 1e5a19e49b089d4b3c5e12828b682d1993e35e75..d5b985ad567936111ee5cccc9ca9fc23d01d9edf 100644 --- a/arch/arm64/boot/dts/apple/t600x-j375.dtsi +++ b/arch/arm64/boot/dts/apple/t600x-j375.dtsi @@ -126,3 +126,5 @@ &pcie0_dart_2 { &pcie0_dart_3 { status = "okay"; }; + +#include "spi1-nvram.dtsi" diff --git a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi index 5988a4eb6efaa008c290b1842e0da2aae8052ba4..8e82231acab59ca0bffdcecfb6681f59661fcd96 100644 --- a/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi +++ b/arch/arm64/boot/dts/apple/t8103-jxxx.dtsi @@ -90,3 +90,5 @@ bluetooth0: bluetooth@0,1 { &nco_clkref { clock-frequency = <900000000>; }; + +#include "spi1-nvram.dtsi" diff --git a/arch/arm64/boot/dts/apple/t8112-jxxx.dtsi b/arch/arm64/boot/dts/apple/t8112-jxxx.dtsi index f5edf61113e7aa869613d672b281f7b7e84efb79..6da35496a4c88dbaba125ebbe8c5a4a428c647c3 100644 --- a/arch/arm64/boot/dts/apple/t8112-jxxx.dtsi +++ b/arch/arm64/boot/dts/apple/t8112-jxxx.dtsi @@ -79,3 +79,5 @@ &i2c3 { &nco_clkref { clock-frequency = <900000000>; }; + +#include "spi1-nvram.dtsi"