From nobody Sun May 5 00:48:03 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1529643057814229.43545443109213; Thu, 21 Jun 2018 21:50:57 -0700 (PDT) Received: from localhost ([::1]:59281 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fWE25-0000PK-UA for importer@patchew.org; Fri, 22 Jun 2018 00:50:49 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44616) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fWDzY-0007Mj-Tp for qemu-devel@nongnu.org; Fri, 22 Jun 2018 00:48:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fWDzX-0004rB-Ts for qemu-devel@nongnu.org; Fri, 22 Jun 2018 00:48:12 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:43345) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fWDzS-0004ZJ-OL; Fri, 22 Jun 2018 00:48:06 -0400 Received: from 108-223-40-66.lightspeed.sntcca.sbcglobal.net ([108.223.40.66]:39450 helo=localhost) by bh-25.webhostbox.net with esmtpa (Exim 4.89) (envelope-from ) id 1fWDzF-006AOf-1v; Fri, 22 Jun 2018 04:47:55 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=roeck-us.net; s=default; h=Message-Id:Date:Subject:Cc:To:From:Sender: Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:In-Reply-To:References:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=YrBNYi/895vP3watcFQSY/JqKrRDe0fU405OXLCoTOA=; b=eSwS8JgKZITwtBNWmmH+X0762C uVKkRFqrsjFq1YUVU4J6Kg2IZ/LiM2t0a4PvR9L3AD7wtep1T42OQkbU4sE9BPDye+lpTh9WYv4ph lt/Q/e6jjHseyBdf/sf4XQFaac1meEBBPKL00WbaC9bP+WOw9rZilaJ1Q20bJ3DfCgFINACCZk2m3 BykBN93L5nKFXA2uFuSEbU9gCNklO0LchABOrV8r3kTEzvYtN1P6nKMU+6nijuIiGuHw1t/5GCz3a Ll3VOM1xaCB3xcIDMyrvGoxTzeSnD2UcVKAkwIH/uCfQDOMuoqnIhtKU/lY7DTwe1x0KMhtLC96A5 +0bdmaxQ==; From: Guenter Roeck To: David Gibson , Alexander Graf Date: Thu, 21 Jun 2018 21:47:51 -0700 Message-Id: <1529642871-14214-1-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 2.7.4 X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - nongnu.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: guenter@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: guenter@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 208.91.199.152 Subject: [Qemu-devel] [PATCH] ppc: Fix sam460ex devicetree when booting the Linux kernel X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org, Guenter Roeck Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" sam4660ex (or at least this emulation) does not support the "ibm,cpm" power management. As a result, Linux crashes when trying to access it. Remove its devicetree node. Also, if/when we boot the Linux kernel directly, u-boot will not fix up serial frequencies in the devicetree file, and serial port initialization will fail. Add plausible frequency values to the first serial port to be able to use it. Disable the second serial port since it is not available on the board. Also set valid values for the other clock nodes otherwise set by u-boot. Signed-off-by: Guenter Roeck --- hw/ppc/sam460ex.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c index bdc53d2..045a255 100644 --- a/hw/ppc/sam460ex.c +++ b/hw/ppc/sam460ex.c @@ -308,6 +308,24 @@ static int sam460ex_load_device_tree(hwaddr addr, qemu_fdt_setprop_cell(fdt, "/cpus/cpu@0", "timebase-frequency", tb_freq); =20 + /* Remove cpm node (not emulated) */ + qemu_fdt_nop_node(fdt, "/cpm"); + /* set serial port clock and speed */ + qemu_fdt_setprop_cell(fdt, "/plb/opb/serial@ef600300", "clock-frequenc= y", + 50000000); + qemu_fdt_setprop_cell(fdt, "/plb/opb/serial@ef600300", "current-speed", + 38400); + /* disable second serial port */ + qemu_fdt_setprop_string(fdt, "/plb/opb/serial@ef600400", "status", + "disabled"); + /* some more clocks */ + qemu_fdt_setprop_cell(fdt, "/plb", "clock-frequency", + 50000000); + qemu_fdt_setprop_cell(fdt, "/plb/opb", "clock-frequency", + 50000000); + qemu_fdt_setprop_cell(fdt, "/plb/opb/ebc", "clock-frequency", + 50000000); + rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); g_free(fdt); ret =3D fdt_size; --=20 2.7.4