From patchwork Fri Jun 28 09:32:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 1953856 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.a=rsa-sha256 header.s=ti-com-17Q1 header.b=kr3fy8mc; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=2a01:238:438b:c500:173d:9f52:ddab:ee01; helo=phobos.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=patchwork.ozlabs.org) Received: from phobos.denx.de (phobos.denx.de [IPv6:2a01:238:438b:c500:173d:9f52:ddab:ee01]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4W9Vd95y67z1yhT for ; Fri, 28 Jun 2024 19:34:21 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 1195D88581; Fri, 28 Jun 2024 11:33:53 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=ti.com header.i=@ti.com header.b="kr3fy8mc"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id DE165885A2; Fri, 28 Jun 2024 11:33:51 +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=-2.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_VALIDITY_RPBL_BLOCKED,RCVD_IN_VALIDITY_SAFE_BLOCKED, SPF_HELO_PASS,SPF_PASS autolearn=ham autolearn_force=no version=3.4.2 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 028CA885B6 for ; Fri, 28 Jun 2024 11:33:49 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=d-gole@ti.com Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 45S9XhYo028169; Fri, 28 Jun 2024 04:33:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1719567223; bh=aHKi1HbmOFBuxXN9Tb9osd12dwuaOfCraI6Fs22zKiw=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=kr3fy8mc8LdGcLMqY7P6N/nh+WxA/ySJMfF67GLUKyoPTGP2mhCZnqIRRtAJPLKWU uOmEqV0ZdXAmmY+6tsDhCmxpGUOdxuo0hxnP/N0jiAB6O0jJBM7aJVxNUjOZmj5EIx tyC+DgchoDXsH3Q6g0PosK1nZHRNGxTd//CgXtQc= Received: from DFLE102.ent.ti.com (dfle102.ent.ti.com [10.64.6.23]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 45S9XhZG127867 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 28 Jun 2024 04:33:43 -0500 Received: from DFLE107.ent.ti.com (10.64.6.28) by DFLE102.ent.ti.com (10.64.6.23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Fri, 28 Jun 2024 04:33:42 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE107.ent.ti.com (10.64.6.28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Fri, 28 Jun 2024 04:33:42 -0500 Received: from dhruva.dhcp.ti.com (dhruva.dhcp.ti.com [172.24.227.68]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 45S9XFWB088895; Fri, 28 Jun 2024 04:33:39 -0500 From: Dhruva Gole To: Tom Rini CC: , Neha Malcom Francis , Nishant Menon , , , , Robert Nelson , Vibhore Vardhan , Vishal Mahaveer , Dhruva Gole Subject: [PATCH V3 4/4] doc: ti: k3: Add TIFS Stub documentation Date: Fri, 28 Jun 2024 15:02:52 +0530 Message-ID: <20240628093252.1864609-5-d-gole@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240628093252.1864609-1-d-gole@ti.com> References: <20240628093252.1864609-1-d-gole@ti.com> MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean Add documentation to briefly explain the role of TIFS Stub in relevant K3 SoC's. Signed-off-by: Dhruva Gole --- doc/board/ti/k3.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/doc/board/ti/k3.rst b/doc/board/ti/k3.rst index 88821a15e4c6..f45a285db21b 100644 --- a/doc/board/ti/k3.rst +++ b/doc/board/ti/k3.rst @@ -192,6 +192,11 @@ online device resources such as power, clock, interrupts, dma etc. This firmware runs on a dedicated or multi-use microcontroller outside the security enclave. + * **TIFS Stub** - A small piece of code that helps restore the remaining + context and resume the TIFS firmware when resuming from Low Power Modes + like Suspend-to-RAM/ Deep Sleep. It is loaded into the ATCM (Tightly + Coupled Memory 'A' of the DM R5) during DM startup. This applies only + to AM62x, AM62A and AM62P based devices. OR