From patchwork Tue Nov 20 09:14:16 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 1000315 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=brainfault.org Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=brainfault-org.20150623.gappssmtp.com header.i=@brainfault-org.20150623.gappssmtp.com header.b="WHuzyzTA"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 42zg5G74g8z9s1x for ; Tue, 20 Nov 2018 20:14:42 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id A7710C21FF5; Tue, 20 Nov 2018 09:14:38 +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=RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, 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 A73B6C21FA3; Tue, 20 Nov 2018 09:14:35 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 284C7C21FA3; Tue, 20 Nov 2018 09:14:34 +0000 (UTC) Received: from mail-pg1-f193.google.com (mail-pg1-f193.google.com [209.85.215.193]) by lists.denx.de (Postfix) with ESMTPS id 8A05EC21EDE for ; Tue, 20 Nov 2018 09:14:33 +0000 (UTC) Received: by mail-pg1-f193.google.com with SMTP id z10so625875pgp.7 for ; Tue, 20 Nov 2018 01:14:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brainfault-org.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id; bh=jKhcreGxljjnUf7Ho5OHjgIw4hIvB+vlo7r4doGLNSA=; b=WHuzyzTATJY1da2eb4kEp3quLrb66zWrw5evI50T66THs7nUDlm4mq/51d9WyOs/8X iSanZ/kM82Mh6ZuZcNNOAYCiQhi9oozKsnE+InJwlPGFHQlc3zVRWYXN4+tqw9Qr4Hkg 9opx46mFZmCwB25nn6fujJXXwyVNs3U565WulFGohykizhW5/jcZzf+mGlW4/yReRbqs kUNW+Y/NYwvjdtdZTY9GKFREwRinMecB7eV4TA9zORJAWc4dqb5WW+65K8ZI9TvV1ZTT UJrhDZBghqPl6dXwWqOrvs8gR9vB0E20YK9HkG+o573RVnUdPbjZmN1CTgVBwO/bEPw3 LRHQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=jKhcreGxljjnUf7Ho5OHjgIw4hIvB+vlo7r4doGLNSA=; b=WLwcmFa7gciiJEqxwrlOgNVR4WkBbnsY7c/i1e72iCzxXFcz0pYd/SVpbJ2McX0P8v vm/gnQsOnOqE4sEfgVKJIxs4xucHrVpKfrRuaZtWlbwRms3T8JuPfDIt5c6nOI1tuVJv 8l9M4ls/rlwt+KnTLGwmMQn12WoLxs3jKFsMq2bPSGgtT/ZF0HPfWtLzJZ641twiZcKB yDjr3nnYzdVInh8oqsZkXhGC/sODWEFn3FM07CUZq5f+NkRKssiEs9WsBlkr/KeldjUp a6XGkm1dxfmZoA2nh8y/bcI2z3eUWRXMy2uDkWjSWWzJSldyF10QVRWFAeozf6YdF4AQ ERjw== X-Gm-Message-State: AGRZ1gJIIYvMOygbRs2pRxHM4I2U/82Z4htcElgTyaS45NYkltCatff0 w1UH7R6kDZaC4/ODXI4CHXo7sQ== X-Google-Smtp-Source: AJdET5fzEzTvMFoYv2Fh2OTjg3cLIK3KwXMaXmnJs8D8MdoToKVPI7fWuUVOFSGxjeVIL6lRtjd1DA== X-Received: by 2002:a62:682:: with SMTP id 124-v6mr1347426pfg.161.1542705271611; Tue, 20 Nov 2018 01:14:31 -0800 (PST) Received: from localhost.localdomain ([106.51.16.59]) by smtp.googlemail.com with ESMTPSA id d80sm92810987pfm.146.2018.11.20.01.14.28 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 20 Nov 2018 01:14:30 -0800 (PST) From: Anup Patel To: Rick Chen Date: Tue, 20 Nov 2018 14:44:16 +0530 Message-Id: <20181120091419.6575-1-anup@brainfault.org> X-Mailer: git-send-email 2.17.1 Cc: U-Boot Mailing List , Palmer Dabbelt , Alexander Graf , Christoph Hellwig , Atish Patra Subject: [U-Boot] [PATCH 0/3] RISC-V S-mode support 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" This patchset allows us runing u-boot in S-mode. This is particularly useful on platforms where M-mode runtime firmware is an independent firmware and u-boot is used as last stage OS bootloader. The patchset is tested on QEMU in both M-mode and S-mode. Anup Patel (3): riscv: Add kconfig option to run u-boot in S-mode riscv: qemu: Use different SYS_TEXT_BASE for S-mode riscv: Add S-mode defconfigs for QEMU virt machine arch/riscv/Kconfig | 6 ++++++ arch/riscv/cpu/start.S | 31 ++++++++++++++++++++++++++++ board/emulation/qemu-riscv/Kconfig | 3 ++- configs/qemu-riscv32-smode_defconfig | 7 +++++++ configs/qemu-riscv64-smode_defconfig | 8 +++++++ 5 files changed, 54 insertions(+), 1 deletion(-) create mode 100644 configs/qemu-riscv32-smode_defconfig create mode 100644 configs/qemu-riscv64-smode_defconfig