Message ID | 20181122102637.17361-20-lukas.auer@aisec.fraunhofer.de |
---|---|
State | Accepted |
Delegated to: | Andes |
Headers | show
Return-Path: <u-boot-bounces@lists.denx.de> 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=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=aisec.fraunhofer.de Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 430wr84cG3z9rxp for <incoming@patchwork.ozlabs.org>; Thu, 22 Nov 2018 21:37:44 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id 577AEC21EF2; Thu, 22 Nov 2018 10:32:39 +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=none 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 2909BC21FF6; Thu, 22 Nov 2018 10:28:10 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id A3019C21F0C; Thu, 22 Nov 2018 10:27:45 +0000 (UTC) Received: from mail-edgeKA27.fraunhofer.de (mail-edgeka27.fraunhofer.de [153.96.1.27]) by lists.denx.de (Postfix) with ESMTPS id 5DB8DC21F29 for <u-boot@lists.denx.de>; Thu, 22 Nov 2018 10:27:42 +0000 (UTC) X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2H4AAAO4PJb/xwBYJliGwEBAQEDAQEBBwMBAQGBZYFbKYFWOYxvix2LFJApDYRsAoNuIjgSAQMBAQIBAQICAmkcDIU+BnkQUSE2Bg4FgyGBagMUAah8h3YNghkJAYdQhCuBVz+BEAGFaIJ1hQ4CiSmWGC4HAoERgQkEi16DIAsYiViHJY5BiVWBXSKBVTMaJIM7gz0BAYJCilo+ATIBjlsBAQ X-IPAS-Result: A2H4AAAO4PJb/xwBYJliGwEBAQEDAQEBBwMBAQGBZYFbKYFWOYxvix2LFJApDYRsAoNuIjgSAQMBAQIBAQICAmkcDIU+BnkQUSE2Bg4FgyGBagMUAah8h3YNghkJAYdQhCuBVz+BEAGFaIJ1hQ4CiSmWGC4HAoERgQkEi16DIAsYiViHJY5BiVWBXSKBVTMaJIM7gz0BAYJCilo+ATIBjlsBAQ X-IronPort-AV: E=Sophos;i="5.56,253,1539640800"; d="scan'208";a="12041320" Received: from mail-mtaka28.fraunhofer.de ([153.96.1.28]) by mail-edgeKA27.fraunhofer.de with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 22 Nov 2018 11:27:43 +0100 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A0C4AgDN3/JbfRBhWMBiHAEBAQQBAQcEAQGBZYFbgV4hOYxvljGQKQ2EbAKEDzgSAQMBAQIBAQIUAQEWOiMMhT0DA3kQUSE2Bg4FgyGBagMVqHuHdg2CGQkBh1CGAj+BEAGFaIJ1hQ4CiSmWGC4HAoERgQkEi16DIAsYiViHJY5BiVWBXSCBVjMaJIM7gz0BAYJCilo+AzABjlsBAQ X-IronPort-AV: E=Sophos;i="5.56,253,1539640800"; d="scan'208";a="19172008" Received: from fgdemucivp01ltm.xch.fraunhofer.de (HELO FGDEMUCIMP11EXC.ads.fraunhofer.de) ([192.88.97.16]) by mail-mtaKA28.fraunhofer.de with ESMTP/TLS/AES256-SHA; 22 Nov 2018 11:27:42 +0100 Received: from muc-nb-035.aisec.fraunhofer.de (10.80.233.50) by FGDEMUCIMP11EXC.ads.fraunhofer.de (10.80.232.42) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 22 Nov 2018 11:27:41 +0100 From: Lukas Auer <lukas.auer@aisec.fraunhofer.de> To: <u-boot@lists.denx.de> Date: Thu, 22 Nov 2018 11:26:28 +0100 Message-ID: <20181122102637.17361-20-lukas.auer@aisec.fraunhofer.de> X-Mailer: git-send-email 2.17.2 In-Reply-To: <20181122102637.17361-1-lukas.auer@aisec.fraunhofer.de> References: <20181122102637.17361-1-lukas.auer@aisec.fraunhofer.de> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-11.0.0.4179-8.200.1013-24238.005 X-TM-AS-Result: No--3.397900-8.000000-31 X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No Cc: Greentime Hu <green.hu@gmail.com> Subject: [U-Boot] [PATCH v4 19/28] riscv: do not blindly modify the mstatus CSR X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion <u-boot.lists.denx.de> List-Unsubscribe: <https://lists.denx.de/options/u-boot>, <mailto:u-boot-request@lists.denx.de?subject=unsubscribe> List-Archive: <http://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>, <mailto:u-boot-request@lists.denx.de?subject=subscribe> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" <u-boot-bounces@lists.denx.de> |
Series |
General fixes / cleanup for RISC-V and improvements to qemu-riscv
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expand
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diff --git a/arch/riscv/cpu/start.S b/arch/riscv/cpu/start.S index c313477ae0..b01ea6e224 100644 --- a/arch/riscv/cpu/start.S +++ b/arch/riscv/cpu/start.S @@ -38,8 +38,9 @@ _start: SREG a2, 0(t0) la t0, trap_entry csrw mtvec, t0 - csrwi mstatus, 0 - csrwi mie, 0 + + /* mask all interrupts */ + csrw mie, zero /* * Set stackpointer in internal/ex RAM to call board_init_f @@ -160,11 +161,10 @@ clear_bss: add t0, t0, t6 /* t0 <- rel __bss_start in RAM */ la t1, __bss_end /* t1 <- rel __bss_end in FLASH */ add t1, t1, t6 /* t1 <- rel __bss_end in RAM */ - li t2, 0x00000000 /* clear */ beq t0, t1, call_board_init_r clbss_l: - SREG t2, 0(t0) /* clear loop... */ + SREG zero, 0(t0) /* clear loop... */ addi t0, t0, REGBYTES bne t0, t1, clbss_l