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GET /api/1.2/patches/2230936/?format=api
{ "id": 2230936, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2230936/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260430084414.1354490-10-richard.genoud@bootlin.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/1.2/projects/18/?format=api", "name": "U-Boot", "link_name": "uboot", "list_id": "u-boot.lists.denx.de", "list_email": "u-boot@lists.denx.de", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260430084414.1354490-10-richard.genoud@bootlin.com>", "list_archive_url": null, "date": "2026-04-30T08:44:02", "name": "[09/20] ram: k3-ddrss: support j784s4/j721e/j721s2 DDR resume", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "94dcd6ac4eacfd2118b22b3fc8edcc3ea09bed94", "submitter": { "id": 88519, "url": "http://patchwork.ozlabs.org/api/1.2/people/88519/?format=api", "name": "Richard Genoud (TI)", "email": "richard.genoud@bootlin.com" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/1.2/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260430084414.1354490-10-richard.genoud@bootlin.com/mbox/", "series": [ { "id": 502237, "url": "http://patchwork.ozlabs.org/api/1.2/series/502237/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=502237", "date": "2026-04-30T08:43:53", "name": "Introduce resume for J7xx SoCs", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/502237/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230936/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230936/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<u-boot-bounces@lists.denx.de>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=2L5zL6Sa;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de\n (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; 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Thu, 30 Apr 2026 10:44:52 +0200 (CEST)", "from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits))\n (No client certificate requested)\n by phobos.denx.de (Postfix) with ESMTPS id D360A846A0\n for <u-boot@lists.denx.de>; Thu, 30 Apr 2026 10:44:50 +0200 (CEST)", "from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233])\n by smtpout-03.galae.net (Postfix) with ESMTPS id 7FE654E42B79;\n Thu, 30 Apr 2026 08:44:50 +0000 (UTC)", "from mail.galae.net (mail.galae.net [212.83.136.155])\n by smtpout-01.galae.net (Postfix) with ESMTPS id 4D86760495;\n Thu, 30 Apr 2026 08:44:50 +0000 (UTC)", "from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon)\n with ESMTPSA id 34D9B1072B7AE;\n Thu, 30 Apr 2026 10:44:46 +0200 (CEST)" ], "X-Spam-Checker-Version": "SpamAssassin 3.4.2 (2018-09-13) on phobos.denx.de", "X-Spam-Level": "", "X-Spam-Status": "No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED,\n DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED,\n SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2", "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n t=1777538689; h=from:subject:date:message-id:to:cc:mime-version:\n content-transfer-encoding:in-reply-to:references;\n bh=nkatxH/e+mjbFAfJ+Z3uovrnjpAIjVpCSOYU+20PJLg=;\n b=2L5zL6SaT03KlWD65f9vUNxN+ajbcKKvy1l47q/9f2RBHqQ50fDsHzl/JSOrLNUIGdkkAH\n yWlbGl+ClZMM2Q03RBfHkYn4543SA7HKeodEbfu5G0PH+w1C0ck0yrPtAK24EicqLRfPU3\n NHCGC84kRaaBDbgrsMe2icAU2SDqzzlKobPxU6MaNfrhP2HT3hljThuS2/Dgw0Lmc097up\n ix+GOA3fYgKFVqe0vfJIh6FU4jKDs5EDFZ+SXMaFv2sSOvis9cOXeXvblzTK/eeptayJ+w\n M2NSlG7bkVvM3t5+6q5rgf8IZ6/kuykB+slqXNMXwcdVARq9EGA3+y29M849Ug==", "From": "\"Richard Genoud (TI)\" <richard.genoud@bootlin.com>", "To": "Tom Rini <trini@konsulko.com>, Manorit Chawdhry <m-chawdhry@ti.com>,\n Apurva Nandan <a-nandan@ti.com>, \"Andrew F . Davis\" <afd@ti.com>,\n Vignesh Raghavendra <vigneshr@ti.com>, Bryan Brattlof <bb@ti.com>,\n Vaishnav Achath <vaishnav.a@ti.com>, Jayesh Choudhary <j-choudhary@ti.com>,\n Simon Glass <sjg@chromium.org>, Alper Nebi Yasak <alpernebiyasak@gmail.com>", "Cc": "Markus Schneider-Pargmann <msp@baylibre.com>,\n Udit Kumar <u-kumar1@ti.com>,\n Abhash Kumar <a-kumar2@ti.com>,\n Thomas Richard <thomas.richard@bootlin.com>,\n Gregory CLEMENT <gregory.clement@bootlin.com>,\n Thomas Petazzoni <thomas.petazzoni@bootlin.com>,\n Richard Genoud <richard.genoud@bootlin.com>, u-boot@lists.denx.de", "Subject": "[PATCH 09/20] ram: k3-ddrss: support j784s4/j721e/j721s2 DDR resume", "Date": "Thu, 30 Apr 2026 10:44:02 +0200", "Message-ID": "<20260430084414.1354490-10-richard.genoud@bootlin.com>", "X-Mailer": "git-send-email 2.47.3", "In-Reply-To": "<20260430084414.1354490-1-richard.genoud@bootlin.com>", "References": "<20260430084414.1354490-1-richard.genoud@bootlin.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Last-TLS-Session-Version": "TLSv1.3", "X-BeenThere": "u-boot@lists.denx.de", "X-Mailman-Version": "2.1.39", "Precedence": "list", "List-Id": "U-Boot discussion <u-boot.lists.denx.de>", "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=unsubscribe>", "List-Archive": "<https://lists.denx.de/pipermail/u-boot/>", "List-Post": "<mailto:u-boot@lists.denx.de>", "List-Help": "<mailto:u-boot-request@lists.denx.de?subject=help>", "List-Subscribe": "<https://lists.denx.de/listinfo/u-boot>,\n <mailto:u-boot-request@lists.denx.de?subject=subscribe>", "Errors-To": "u-boot-bounces@lists.denx.de", "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>", "X-Virus-Scanned": "clamav-milter 0.103.8 at phobos.denx.de", "X-Virus-Status": "Clean" }, "content": "j78s4/j721e/j7200/J721s2 can't use the standard resume sequence.\nTypical DDR resume sequence is:\n- exit DDR from retention\n- de-assert the DDR_RET pin\n- restore DDR max frequency\n- exit DDR from low power\n\nWe have to separate each action in order to de-assert the DDR_RET pins\nat the right time, because the DDR_RET pins are all tied together in\nhardware.\n\nAt resume, only the initialization of the DDR is done by the driver, the\nrest is handled in boart_init_f().\nSo, introduce lpm_init_only flag to only initialize the DDR when resume\nis detected for those boards.\n\nSigned-off-by: Richard Genoud (TI) <richard.genoud@bootlin.com>\n---\n drivers/ram/k3-ddrss/k3-ddrss.c | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/drivers/ram/k3-ddrss/k3-ddrss.c b/drivers/ram/k3-ddrss/k3-ddrss.c\nindex 7b23123ab00d..5db421353e1f 100644\n--- a/drivers/ram/k3-ddrss/k3-ddrss.c\n+++ b/drivers/ram/k3-ddrss/k3-ddrss.c\n@@ -122,6 +122,7 @@ enum intrlv_size {\n \n struct k3_ddrss_data {\n \tu32 flags;\n+\tbool lpm_init_only;\n \tbool (*is_lpm_resume)(void);\n \tvoid (*ddrss_deassert_retention)(void);\n };\n@@ -1157,6 +1158,9 @@ static int k3_ddrss_probe(struct udevice *dev)\n \tk3_lpddr4_init(ddrss);\n \tk3_lpddr4_hardware_reg_init(ddrss);\n \n+\tif (is_lpm_resume && ddrss_data->lpm_init_only)\n+\t\treturn k3_ddrss_init_freq(ddrss);\n+\n \tif (is_lpm_resume)\n \t\tk3_ddrss_self_refresh_exit(ddrss->ddrss_ctl_cfg);\n \n@@ -1294,6 +1298,8 @@ static struct ram_ops k3_ddrss_ops = {\n \n static const struct k3_ddrss_data k3_data = {\n \t.flags = SINGLE_DDR_SUBSYSTEM,\n+\t.lpm_init_only = true,\n+\t.is_lpm_resume = j7xx_board_is_resuming,\n };\n \n static const struct k3_ddrss_data am62xx_data = {\n@@ -1304,6 +1310,8 @@ static const struct k3_ddrss_data am62xx_data = {\n \n static const struct k3_ddrss_data j721s2_data = {\n \t.flags = MULTI_DDR_SUBSYSTEM,\n+\t.lpm_init_only = true,\n+\t.is_lpm_resume = j7xx_board_is_resuming,\n };\n \n static const struct k3_ddrss_data j722s_data = {\n", "prefixes": [ "09/20" ] }