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GET /api/patches/2223553/?format=api
{ "id": 2223553, "url": "http://patchwork.ozlabs.org/api/patches/2223553/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/20260415152152.3048491-4-u-kumar1@ti.com/", "project": { "id": 18, "url": "http://patchwork.ozlabs.org/api/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": "<20260415152152.3048491-4-u-kumar1@ti.com>", "list_archive_url": null, "date": "2026-04-15T15:21:52", "name": "[v2,3/3] arch: mach-k3: j784s4_init: Add workaround for errata i2437", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "feb5c4be544a555f3d8c3c14f5e66057b62c84b0", "submitter": { "id": 86225, "url": "http://patchwork.ozlabs.org/api/people/86225/?format=api", "name": "Udit Kumar", "email": "u-kumar1@ti.com" }, "delegate": { "id": 3651, "url": "http://patchwork.ozlabs.org/api/users/3651/?format=api", "username": "trini", "first_name": "Tom", "last_name": "Rini", "email": "trini@ti.com" }, "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/20260415152152.3048491-4-u-kumar1@ti.com/mbox/", "series": [ { "id": 500003, "url": "http://patchwork.ozlabs.org/api/series/500003/?format=api", "web_url": "http://patchwork.ozlabs.org/project/uboot/list/?series=500003", "date": "2026-04-15T15:21:49", "name": "j721s2: j784s4: Add workaround for errata i2437", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/500003/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2223553/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2223553/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 (1024-bit key;\n unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256\n header.s=selector1 header.b=WZfW2rLK;\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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helo=lewvzet200.ext.ti.com; pr=C", "From": "Udit Kumar <u-kumar1@ti.com>", "To": "<vigneshr@ti.com>, <trini@konsulko.com>, <m-chawdhry@ti.com>", "CC": "<bb@ti.com>, <n-francis@ti.com>, <nm@ti.com>, <gehariprasath@ti.com>,\n <u-boot@lists.denx.de>, Udit Kumar <u-kumar1@ti.com>", "Subject": "[PATCH v2 3/3] arch: mach-k3: j784s4_init: Add workaround for errata\n i2437", "Date": "Wed, 15 Apr 2026 20:51:52 +0530", "Message-ID": "<20260415152152.3048491-4-u-kumar1@ti.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20260415152152.3048491-1-u-kumar1@ti.com>", "References": "<20260415152152.3048491-1-u-kumar1@ti.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-C2ProcessedOrg": "333ef613-75bf-4e12-a4b1-8e3623f5dcea", "X-EOPAttributedMessage": "0", "X-MS-PublicTrafficType": "Email", "X-MS-TrafficTypeDiagnostic": "MN1PEPF0000ECD9:EE_|PH8PR10MB6454:EE_", "X-MS-Office365-Filtering-Correlation-Id": "f12c58ec-37b6-4b2f-2600-08de9b02c82e", "X-MS-Exchange-SenderADCheck": "1", "X-MS-Exchange-AntiSpam-Relay": "0", "X-Microsoft-Antispam": "BCL:0;\n ARA:13230040|1800799024|36860700016|376014|82310400026|18002099003|22082099003|56012099003;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:198.47.23.194; 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Ip=[198.47.23.194];\n Helo=[lewvzet200.ext.ti.com]", "X-MS-Exchange-CrossTenant-AuthSource": "\n MN1PEPF0000ECD9.namprd02.prod.outlook.com", "X-MS-Exchange-CrossTenant-AuthAs": "Anonymous", "X-MS-Exchange-CrossTenant-FromEntityHeader": "HybridOnPrem", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PH8PR10MB6454", "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": "From: Neha Malcom Francis <n-francis@ti.com>\n\nAdd the workaround proposed for J784S4 errata i2437 (link) for SE\nclock-gating turning off too early. Without this, a hardware bug present\nin C7120 leads to C7120 CPU hanging.\n\nLink: https://www.ti.com/lit/pdf/sprz536\nSigned-off-by: Neha Malcom Francis <n-francis@ti.com>\nSigned-off-by: Udit Kumar <u-kumar1@ti.com>\n---\n arch/arm/mach-k3/j784s4/j784s4_init.c | 39 +++++++++++++++++++++++++++\n 1 file changed, 39 insertions(+)", "diff": "diff --git a/arch/arm/mach-k3/j784s4/j784s4_init.c b/arch/arm/mach-k3/j784s4/j784s4_init.c\nindex 53f152ccd9c..507b7ab685a 100644\n--- a/arch/arm/mach-k3/j784s4/j784s4_init.c\n+++ b/arch/arm/mach-k3/j784s4/j784s4_init.c\n@@ -45,6 +45,15 @@\n #define NB_THREADMAP_BIT1\t\t\t\tBIT(1)\n #define NB_THREADMAP_BIT2\t\t\t\tBIT(2)\n \n+/*\n+ * RAT mapping for errata ID: i2437\n+ */\n+#define RAT_ERRATA_2437_BASE_REGION0\t\t0x40f90000\n+#define RAT_ERRATA_2437_IN_ADDR\t\t\t0xc0000000\n+#define RAT_ERRATA_2437_OUT_ADDR_U\t\t0x0000004d\n+#define RAT_ERRATA_2437_OUT_ADDR_L\t\t0x21000000\n+#define RAT_ERRATA_2437_CTRL\t\t\t0x80000010\n+\n struct fwl_data infra_cbass0_fwls[] = {\n \t{ \"PSC0\", 5, 1 },\n \t{ \"PLL_CTRL0\", 6, 1 },\n@@ -322,6 +331,36 @@ void board_init_f(ulong dummy)\n \t\tsetup_navss_nb();\n \n \tsetup_qos();\n+\n+\tif (IS_ENABLED(CONFIG_CPU_V7R)) {\n+\t\t/*\n+\t\t * Errata ID i2437 SE Clock-Gating Turning Off Too Early\n+\t\t *\n+\t\t * A hardware bug is present in the C7120 Streaming Engine top level\n+\t\t * clock gating logic that can lead to the C7120 CPU hanging.\n+\n+\t\t * Workaround: The DSP_<COREID>_DEBUG_CLKEN_OVERRIDE fields of the\n+\t\t * COMPUTE_CLUSTER_CFG_WRAP_0_CC_CNTRL register (where COREID is the\n+\t\t * name of the specific C7120 core) must be enabled before power-up\n+\t\t * of the C7120 core to override all clock-gating.\n+\t\t */\n+\n+\t\t/* Setup RAT mapping */\n+\t\tdebug(\"Errata i2437: Use RAT for COMPUTE_CLUSTER_CFG_WRAP_0_CC_CNTRL register\\n\");\n+\t\twritel_verify(RAT_ERRATA_2437_IN_ADDR, RAT_ERRATA_2437_BASE_REGION0 + 0x24);\n+\t\twritel_verify(RAT_ERRATA_2437_OUT_ADDR_L, RAT_ERRATA_2437_BASE_REGION0 + 0x28);\n+\t\twritel_verify(RAT_ERRATA_2437_OUT_ADDR_U, RAT_ERRATA_2437_BASE_REGION0 + 0x2c);\n+\t\twritel_verify(RAT_ERRATA_2437_CTRL, RAT_ERRATA_2437_BASE_REGION0 + 0x20);\n+\n+\t\t/* Enable DSP_X_DEBUG_CLKEN_OVERRIDE for C71x cores */\n+\t\twritel_verify(0xF00, RAT_ERRATA_2437_IN_ADDR + 0x200);\n+\n+\t\t/* Clear RAT mapping */\n+\t\twritel_verify(0, RAT_ERRATA_2437_BASE_REGION0 + 0x20);\n+\t\twritel_verify(0, RAT_ERRATA_2437_BASE_REGION0 + 0x24);\n+\t\twritel_verify(0, RAT_ERRATA_2437_BASE_REGION0 + 0x28);\n+\t\twritel_verify(0, RAT_ERRATA_2437_BASE_REGION0 + 0x2c);\n+\t}\n }\n \n u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device)\n", "prefixes": [ "v2", "3/3" ] }