From patchwork Fri Jun 28 09:32:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 1953852 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=NSiKfgtA; 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) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4W9VcN6DL5z1yhT for ; Fri, 28 Jun 2024 19:33:40 +1000 (AEST) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 464E288286; Fri, 28 Jun 2024 11:33:30 +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="NSiKfgtA"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 997FA8857D; Fri, 28 Jun 2024 11:33:29 +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 lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) (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 406A487D40 for ; Fri, 28 Jun 2024 11:33:27 +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 fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 45S9XPw7091403; Fri, 28 Jun 2024 04:33:25 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1719567205; bh=YUchegk5Epm1UNr1YTXunhNnH6V659tDqYYNdrvdaEU=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=NSiKfgtAeFCjmIkTcrpiIqPz84skLxFN4H9IGyTzZyCUdQ75v4CkgHf05NWtsZTXa 6tXOQo7BVPSaeGbvDP2fEYOLStp8CRkGpIrNPkqDN1O68m8zJkcLXWjo9xfRttgKKa PjtkXzOC1EfjPPyJ6uEsL4PfYpRL1CklFCuV/9ZE= Received: from DLEE113.ent.ti.com (dlee113.ent.ti.com [157.170.170.24]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 45S9XPfl018560 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 28 Jun 2024 04:33:25 -0500 Received: from DLEE110.ent.ti.com (157.170.170.21) by DLEE113.ent.ti.com (157.170.170.24) 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 04:33:24 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DLEE110.ent.ti.com (157.170.170.21) 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 04:33:24 -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 45S9XFW8088895; Fri, 28 Jun 2024 04:33:21 -0500 From: Dhruva Gole To: Tom Rini CC: , Neha Malcom Francis , Nishant Menon , , , , Robert Nelson , Vibhore Vardhan , Vishal Mahaveer , Dhruva Gole Subject: [PATCH V3 1/4] arm: dts: k3-am625-beagleplay: Package TIFS Stub Date: Fri, 28 Jun 2024 15:02:49 +0530 Message-ID: <20240628093252.1864609-2-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 support for packaging the TIFS Stub as it's required for basic Low Power Modes like Deep Sleep. Acked-by: Neha Malcom Francis Signed-off-by: Dhruva Gole --- arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi | 33 +++++++++++++++++++- 1 file changed, 32 insertions(+), 1 deletion(-) base-commit: c53b344475734d0d29f522b7b1d80c5b8204442d diff --git a/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi b/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi index fb2032068d1c..5e2248a4a668 100644 --- a/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi +++ b/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi @@ -69,6 +69,23 @@ }; }; + tifsstub-gp { + filename = "tifsstub.bin_gp"; + ti-secure-rom { + content = <&tifsstub_gp>; + core = "secure"; + load = <0x60000>; + sw-rev = ; + keyfile = "ti-degenerate-key.pem"; + tifsstub; + }; + tifsstub_gp: tifsstub-gp.bin { + filename = "ti-sysfw/ti-fs-stub-firmware-am62x-gp.bin"; + type = "blob-ext"; + optional; + }; + }; + ti-spl_unsigned { filename = "tispl.bin_unsigned"; pad-byte = <0xff>; @@ -105,6 +122,19 @@ }; }; + tifsstub-gp { + description = "tifsstub"; + type = "firmware"; + arch = "arm32"; + compression = "none"; + os = "tifsstub-gp"; + load = <0x9dc00000>; + entry = <0x9dc00000>; + blob-ext { + filename = "tifsstub.bin_gp"; + }; + }; + dm { description = "DM binary"; type = "firmware"; @@ -148,7 +178,8 @@ conf-0 { description = "k3-am625-beagleplay"; firmware = "atf"; - loadables = "tee", "dm", "spl"; + loadables = "tee", "dm", "spl", + "tifsstub-gp"; fdt = "fdt-0"; }; }; From patchwork Fri Jun 28 09:32:50 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 1953854 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=LgNR8P1T; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.denx.de (client-ip=85.214.62.61; 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Fri, 28 Jun 2024 04:33:32 -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 45S9XFW9088895; Fri, 28 Jun 2024 04:33:29 -0500 From: Dhruva Gole To: Tom Rini CC: , Neha Malcom Francis , Nishant Menon , , , , Robert Nelson , Vibhore Vardhan , Vishal Mahaveer , Dhruva Gole Subject: [PATCH V3 2/4] doc: beagle: am62x_beagleplay: Update the boot flow to show TIFS Stub Date: Fri, 28 Jun 2024 15:02:50 +0530 Message-ID: <20240628093252.1864609-3-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 the AM62x boot flow to show at which point the TIFS Stub actually gets loaded. Signed-off-by: Dhruva Gole --- doc/board/beagle/am62x_beagleplay.rst | 2 +- doc/board/ti/img/boot_diagram_am62.svg | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) create mode 100644 doc/board/ti/img/boot_diagram_am62.svg diff --git a/doc/board/beagle/am62x_beagleplay.rst b/doc/board/beagle/am62x_beagleplay.rst index 7784e62b0b71..be42e4d9c2ed 100644 --- a/doc/board/beagle/am62x_beagleplay.rst +++ b/doc/board/beagle/am62x_beagleplay.rst @@ -23,7 +23,7 @@ Boot Flow: ---------- Below is the pictorial representation of boot flow: -.. image:: ../ti/img/boot_diagram_k3_current.svg +.. image:: ../ti/img/boot_diagram_am62.svg :alt: Boot flow diagram - On this platform, 'TI Foundational Security' (TIFS) functions as the diff --git a/doc/board/ti/img/boot_diagram_am62.svg b/doc/board/ti/img/boot_diagram_am62.svg new file mode 100644 index 000000000000..10b7eff6ce63 --- /dev/null +++ b/doc/board/ti/img/boot_diagram_am62.svg @@ -0,0 +1,4 @@ + + + +
Cortex-R
Cortex-R
ROM
ROM
Cortex-R SPL
Cortex-R SPL
Load and auth tiboot3.bin
Load and auth t...
Load system
config data
Load system...
DDR Config
DDR Config
Load tispl.bin
Load tispl.bin
Start Cortex-A
Start Cortex-A
Start DM
Start DM
Device Mgr
Device Mgr
Start Cortex-A
Start Cort...
Load TIFS Stub in TCM
Load TIFS St...
Cortex-A
Cortex-A
OP-TEE
OP-TEE
Cortex-R/M
C6x/C7x
Cortex-R/M...
Aux f/w
Aux f/w
TIFS/DMSC
TIFS/DMSC
ROM
ROM
Start TIFS
Start TIFS
TIFS
TIFS
Security Enclave Boot Processor
Security Enclave Boot...
Boot Loader
Processor
Boot Loader...
Main CPU
Main CPU
Auxiliary
Processor
Auxiliary...
H/w Seq: Reset rls
H/w Seq: Reset rls
Auth tiboot3.bin
Auth tiboo...
Release Reset
Release Re...
Load system config data
Load syste...
Start TIFS
Start TIFS
Load DM f/w
Load DM f/w
branch
branch
Release Reset
Release Re...
TF-A 
TF-A 
Cortex-A SPL
Cortex-A SPL
U-Boot
U-Boot
Load u-boot.img
Load u-boot.img
Load Aux core f/w
(optional)
Load Aux core f/w...
Start Aux core
(optional)
Start Aux core...
Release Reset
Release Re...Text is not SVG - cannot display \ No newline at end of file From patchwork Fri Jun 28 09:32:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dhruva Gole X-Patchwork-Id: 1953855 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=jgX4RzXd; 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 4W9Vcx6Gtlz1yhT for ; 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Fri, 28 Jun 2024 04:33:37 -0500 Received: from lelvsmtp6.itg.ti.com (10.180.75.249) by DFLE109.ent.ti.com (10.64.6.30) 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 04:33:37 -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 45S9XFWA088895; Fri, 28 Jun 2024 04:33:34 -0500 From: Dhruva Gole To: Tom Rini CC: , Neha Malcom Francis , Nishant Menon , , , , Robert Nelson , Vibhore Vardhan , Vishal Mahaveer , Dhruva Gole Subject: [PATCH V3 3/4] doc: beagle: am62x_beagleplay: Add TIFS Stub in image format Date: Fri, 28 Jun 2024 15:02:51 +0530 Message-ID: <20240628093252.1864609-4-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 Mention the TIFS Stub in the TISP image format Signed-off-by: Dhruva Gole --- doc/board/beagle/am62x_beagleplay.rst | 2 +- doc/board/ti/img/tifsstub_dm_tispl.bin.svg | 4 ++++ 2 files changed, 5 insertions(+), 1 deletion(-) create mode 100644 doc/board/ti/img/tifsstub_dm_tispl.bin.svg diff --git a/doc/board/beagle/am62x_beagleplay.rst b/doc/board/beagle/am62x_beagleplay.rst index be42e4d9c2ed..a70727adb621 100644 --- a/doc/board/beagle/am62x_beagleplay.rst +++ b/doc/board/beagle/am62x_beagleplay.rst @@ -87,7 +87,7 @@ Image formats - tispl.bin -.. image:: ../ti/img/dm_tispl.bin.svg +.. image:: ../ti/img/tifsstub_dm_tispl.bin.svg :alt: tispl.bin image format Additional hardware for U-Boot development diff --git a/doc/board/ti/img/tifsstub_dm_tispl.bin.svg b/doc/board/ti/img/tifsstub_dm_tispl.bin.svg new file mode 100644 index 000000000000..04e4f15da21f --- /dev/null +++ b/doc/board/ti/img/tifsstub_dm_tispl.bin.svg @@ -0,0 +1,4 @@ + + + +
FIT Header
FIT Header
TIFS Stub
(GP, HS-FS, HS-SE)
TIFS Stub...
TF-A
TF-A
OP-TEE
OP-TEE
R5 DM FW
R5 DM FW
Cortex-A SPL
Cortex-A SPL
SPL DTB 1..N
SPL DTB 1..NText is not SVG - cannot display \ No newline at end of file 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