From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D20CC38145 for ; Wed, 7 Sep 2022 23:29:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230012AbiIGX3i (ORCPT ); Wed, 7 Sep 2022 19:29:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229959AbiIGX33 (ORCPT ); Wed, 7 Sep 2022 19:29:29 -0400 Received: from mail-pf1-x433.google.com (mail-pf1-x433.google.com [IPv6:2607:f8b0:4864:20::433]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A3EBB8F for ; Wed, 7 Sep 2022 16:29:23 -0700 (PDT) Received: by mail-pf1-x433.google.com with SMTP id 123so6735589pfy.2 for ; Wed, 07 Sep 2022 16:29:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date; bh=yQkwNtni2gxxdATORPGlV1fDV03YMJzpHvkUqtYbFaw=; b=dvSWdYIkn2Efto6iM0rwgEjCNE/o1OhsX46iIUwrKcEFYP8cKlumrQs65UR5i89595 NbDPrdVhP6/Esw01d0gQ47EDPPXHZmn4+eKT7EL1OtSNuCD8yfownW/vhU8IVXdYFArs walXYWOAwWMANNnebV83/GfapsY1r/uFEudkM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date; bh=yQkwNtni2gxxdATORPGlV1fDV03YMJzpHvkUqtYbFaw=; b=FYQyRI+vB2jaQpABnw+0BBhQeLzQCcv4ZniOrjKa5MA1ExztlCGUKJsD5RrsZ05jSO 7ag4zFfMNXbK1JLLyI7CIVRSTIGLNnLYQHOlpUm3EnCITyms6TIdyY41PO9kWbV0VyIX Tyv4PSl5P2ZmfCQZv3N/5HWnOICniEJt9mzrCJaoMaexgMgo+5WA3U0BqQXhac9g3d42 L6/443XaTnG7bizwB3yK/m+Oybyd/tS8/8KwyhwuWQjFuv/m9A+9543rxwD6Z4QOuc7k l37UjnOoCqpEHnm/d/zPC4UI3eQy3oQnEBJcJyvC2q8FUYCE6uNSvsRsZhCDWx1+py5o IoaQ== X-Gm-Message-State: ACgBeo3Bvzm9FCTXh8cGZ3GI0pAyYEPXaeiJE/7HUqQTGS1QnHMGRE2Y Hf8NmjGCbjsSlBu5870tLKjBBw== X-Google-Smtp-Source: AA6agR73gLQF4pgbpUaEj6zw3YArSWJPDjhe+CF3Nnx0UEHo/lIbzNJnb34ZIaiLak2PG4NYZIzHrw== X-Received: by 2002:a05:6a00:a04:b0:534:d8a6:40ce with SMTP id p4-20020a056a000a0400b00534d8a640cemr6184297pfh.15.1662593363022; Wed, 07 Sep 2022 16:29:23 -0700 (PDT) Received: from jwerner-p920.mtv.corp.google.com ([2620:15c:202:201:1cee:f8f:cc9f:568f]) by smtp.gmail.com with ESMTPSA id g6-20020a17090a708600b002000dabc356sm201521pjk.45.2022.09.07.16.29.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Sep 2022 16:29:22 -0700 (PDT) From: Julius Werner To: Krzysztof Kozlowski Cc: Rob Herring , Dmitry Osipenko , Doug Anderson , Jian-Jia Su , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Julius Werner Subject: [PATCH 3/4 v2] dt-bindings: memory: Add jedec,lpddr4 and jedec,lpddr5 bindings Date: Wed, 7 Sep 2022 16:29:13 -0700 Message-Id: <20220907232914.243502-3-jwerner@chromium.org> X-Mailer: git-send-email 2.37.2.789.g6183377224-goog In-Reply-To: <20220907232914.243502-1-jwerner@chromium.org> References: <20220907232914.243502-1-jwerner@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds bindings for LPDDR4 and LPDDR5 memory analogous to the existing bindings for LPDDR2 and LPDDR3. For now, the new types are only needed for topology description, so other properties like timing parameters are omitted. They can be added later if needed. Signed-off-by: Julius Werner --- .../ddr/jedec,lpddr-props.yaml | 4 ++ .../memory-controllers/ddr/jedec,lpddr4.yaml | 36 ++++++++++++++ .../memory-controllers/ddr/jedec,lpddr5.yaml | 47 +++++++++++++++++++ 3 files changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr4.yaml create mode 100644 Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml Changelog: - v2 - removed minItems - moved `$ref` below `maintainers` - renamed example node from `lpddr4` to `lpddr` diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml index 4114cfa8de67f1..92ef660888f318 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr-props.yaml @@ -45,9 +45,13 @@ properties: - 512 - 1024 - 2048 + - 3072 - 4096 + - 6144 - 8192 + - 12288 - 16384 + - 24576 - 32768 io-width: diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr4.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr4.yaml new file mode 100644 index 00000000000000..0b2394c032797f --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr4.yaml @@ -0,0 +1,36 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr4.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LPDDR4 SDRAM compliant to JEDEC JESD209-4 + +maintainers: + - Krzysztof Kozlowski + +allOf: + - $ref: "jedec,lpddr-props.yaml#" + +properties: + compatible: + items: + - pattern: "^lpddr4-[0-9a-f]{2},[0-9a-f]{4}$" + - const: jedec,lpddr4 + +required: + - compatible + - density + - io-width + +unevaluatedProperties: false + +examples: + - | + lpddr { + compatible = "lpddr4-ff,0100", "jedec,lpddr4"; + density = <8192>; + io-width = <16>; + manufacturer-id = <255>; + revision-id = <1 0>; + }; diff --git a/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml new file mode 100644 index 00000000000000..d86e1e30380e47 --- /dev/null +++ b/Documentation/devicetree/bindings/memory-controllers/ddr/jedec,lpddr5.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/memory-controllers/ddr/jedec,lpddr5.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LPDDR5 SDRAM compliant to JEDEC JESD209-5 + +maintainers: + - Krzysztof Kozlowski + +allOf: + - $ref: "jedec,lpddr-props.yaml#" + +properties: + compatible: + items: + - pattern: "^lpddr5-[0-9a-f]{2},[0-9a-f]{4}$" + - const: jedec,lpddr5 + + serial-id: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Serial IDs read from Mode Registers 47 through 54. One byte per uint32 + cell (i.e. ). + maxItems: 8 + items: + minimum: 0 + maximum: 255 + +required: + - compatible + - density + - io-width + +unevaluatedProperties: false + +examples: + - | + lpddr { + compatible = "lpddr5-01,0200", "jedec,lpddr5"; + density = <8192>; + io-width = <8>; + manufacturer-id = <1>; + revision-id = <2 0>; + serial-id = <3 1 0 0 0 0 0 0>; + }; -- 2.31.0