From patchwork Thu Apr 13 02:39:10 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 97354 Delivered-To: patch@linaro.org Received: by 10.140.109.52 with SMTP id k49csp533261qgf; Wed, 12 Apr 2017 19:45:06 -0700 (PDT) X-Received: by 10.28.220.193 with SMTP id t184mr951932wmg.63.1492051506869; Wed, 12 Apr 2017 19:45:06 -0700 (PDT) Return-Path: Received: from lists.denx.de (dione.denx.de. [81.169.180.215]) by mx.google.com with ESMTP id r10si23209300wrc.146.2017.04.12.19.45.06; Wed, 12 Apr 2017 19:45:06 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) client-ip=81.169.180.215; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@nifty.com; spf=pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 81.169.180.215 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de Received: by lists.denx.de (Postfix, from userid 105) id 6C7DEC21C80; Thu, 13 Apr 2017 02:44:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 26F0DC21C83; Thu, 13 Apr 2017 02:44:06 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 15893C21C60; Thu, 13 Apr 2017 02:40:15 +0000 (UTC) Received: from conuserg-10.nifty.com (conuserg-10.nifty.com [210.131.2.77]) by lists.denx.de (Postfix) with ESMTPS id 25DD8C21C66 for ; Thu, 13 Apr 2017 02:40:10 +0000 (UTC) Received: from pug.e01.socionext.com (p14092-ipngnfx01kyoto.kyoto.ocn.ne.jp [153.142.97.92]) (authenticated) by conuserg-10.nifty.com with ESMTP id v3D2dOaj009516; Thu, 13 Apr 2017 11:39:24 +0900 DKIM-Filter: OpenDKIM Filter v2.10.3 conuserg-10.nifty.com v3D2dOaj009516 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nifty.com; s=dec2015msa; t=1492051164; bh=ek97C8TdbNRAnYWwwq8fgdXWDP4Iy1WbEty8vpc6kh8=; h=From:To:Cc:Subject:Date:From; b=iarQh6Zz4kYQrvcMiajESfy4b7P+owwMItJHOcpjYdZKG1KbBljQImCWCHDJD/oOs ifTCJLQ+gSFK1IzNF3SueKKdtRNUqvpU2EKZjrRRE10J43yOqE944ALirsiMEh7odp 4CWOxWt3e6mcm54wZZobdfR9v5NL7RoYAhInNdPR5XPuzf/mPQ9YaFMiQtlXoMy+Pq WPaSmLnzhaD1PkYee8AIYf/WzRIr/8Eb61qbsy3jd02xxOOZRvOArwViCfCuMj6pzF fBtQfTjXemYZrFSknaNRSS7OdT3rJWIJEZ4x/6KmXtqG7KlbJQL1Au/HAnEOLNE71q Dq7zvncx+Io2g== X-Nifty-SrcIP: [153.142.97.92] From: Masahiro Yamada To: u-boot@lists.denx.de Date: Thu, 13 Apr 2017 11:39:10 +0900 Message-Id: <1492051153-12817-1-git-send-email-yamada.masahiro@socionext.com> X-Mailer: git-send-email 2.7.4 Cc: Tom Rini Subject: [U-Boot] [PATCH v2 0/3] ARM: support System Reset via PSCI X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" For ARMv8, the secure firmware (ex. ARM Trusted Firmware BL31) is often implemented, making U-Boot a non-secure world boot loader. The secure firmware generally includes PSCI. The power management operations, including System Reset, are supposed to be handled by PSCI. In this case, U-Boot should not touch the system reset directly. Instead, U-Boot should call PSCI service to reset the system. In order to implement this, arm-smccc code is needed. The code has been copied from Linux. (1/3) They have been adjusted for use in U-Boot (2/3). 3/3 implements a generic sysreset driver based on the PSCI specification. Masahiro Yamada (3): ARM: import arm-smccc code from Linux 4.11-rc6 ARM: adjust arm-smccc code for use in U-Boot sysreset: psci: support system reset in a generic way with PSCI arch/arm/Kconfig | 9 ++ arch/arm/cpu/armv7/Makefile | 1 + arch/arm/cpu/armv7/smccc-call.S | 56 +++++++++ arch/arm/cpu/armv8/Makefile | 2 + arch/arm/cpu/armv8/smccc-call.S | 44 +++++++ arch/arm/include/asm/opcodes-sec.h | 17 +++ arch/arm/include/asm/opcodes-virt.h | 27 +++++ arch/arm/include/asm/opcodes.h | 229 ++++++++++++++++++++++++++++++++++++ arch/arm/lib/asm-offsets.c | 8 ++ drivers/Kconfig | 2 + drivers/Makefile | 5 +- drivers/firmware/Kconfig | 6 + drivers/firmware/Makefile | 2 + drivers/firmware/firmware-uclass.c | 11 ++ drivers/firmware/psci.c | 94 +++++++++++++++ drivers/sysreset/Kconfig | 10 ++ drivers/sysreset/Makefile | 1 + drivers/sysreset/sysreset_psci.c | 41 +++++++ include/dm/uclass-id.h | 1 + include/linux/arm-smccc.h | 126 ++++++++++++++++++++ include/linux/psci.h | 13 ++ 21 files changed, 703 insertions(+), 2 deletions(-) create mode 100644 arch/arm/cpu/armv7/smccc-call.S create mode 100644 arch/arm/cpu/armv8/smccc-call.S create mode 100644 arch/arm/include/asm/opcodes-sec.h create mode 100644 arch/arm/include/asm/opcodes-virt.h create mode 100644 arch/arm/include/asm/opcodes.h create mode 100644 drivers/firmware/Kconfig create mode 100644 drivers/firmware/Makefile create mode 100644 drivers/firmware/firmware-uclass.c create mode 100644 drivers/firmware/psci.c create mode 100644 drivers/sysreset/sysreset_psci.c create mode 100644 include/linux/arm-smccc.h