From patchwork Sun Jun 28 18:03:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: BALATON Zoltan X-Patchwork-Id: 1318628 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=eik.bme.hu Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49vzbF2PMbz9sRk for ; Mon, 29 Jun 2020 04:26:17 +1000 (AEST) Received: from localhost ([::1]:39582 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jpc0N-0001Xm-0E for incoming@patchwork.ozlabs.org; Sun, 28 Jun 2020 14:26:15 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51624) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jpbuW-0002Dj-Ik; Sun, 28 Jun 2020 14:20:12 -0400 Received: from zero.eik.bme.hu ([2001:738:2001:2001::2001]:38378) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jpbuU-0005N3-Mb; Sun, 28 Jun 2020 14:20:12 -0400 Received: from zero.eik.bme.hu (blah.eik.bme.hu [152.66.115.182]) by localhost (Postfix) with SMTP id 23982748DCC; Sun, 28 Jun 2020 20:20:09 +0200 (CEST) Received: by zero.eik.bme.hu (Postfix, from userid 432) id 04188746331; Sun, 28 Jun 2020 20:20:09 +0200 (CEST) Message-Id: <73921e8573a7888cb97cf974aa789318fafaa399.1593367416.git.balaton@eik.bme.hu> In-Reply-To: References: From: BALATON Zoltan Subject: [PATCH v6 08/11] mac_oldworld: Add machine ID register Date: Sun, 28 Jun 2020 20:03:36 +0200 MIME-Version: 1.0 To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org X-Spam-Probability: 8% Received-SPF: pass client-ip=2001:738:2001:2001::2001; envelope-from=balaton@eik.bme.hu; helo=zero.eik.bme.hu X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Howard Spoelstra , Mark Cave-Ayland , David Gibson Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" The G3 beige machine has a machine ID register that is accessed by the firmware to deternine the board config. Add basic emulation of it. Signed-off-by: BALATON Zoltan --- v6: Make MemoryRegionOps static const v4: Move MermoryRegion to MachineState, use constants hw/ppc/mac.h | 1 + hw/ppc/mac_oldworld.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/hw/ppc/mac.h b/hw/ppc/mac.h index 58ae5a2226..75f1853a7b 100644 --- a/hw/ppc/mac.h +++ b/hw/ppc/mac.h @@ -69,6 +69,7 @@ typedef struct HeathrowMachineState { /*< private >*/ MachineState parent; + MemoryRegion machine_id; PCIDevice *macio; } HeathrowMachineState; diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c index 13562e26e6..8fbddba4eb 100644 --- a/hw/ppc/mac_oldworld.c +++ b/hw/ppc/mac_oldworld.c @@ -52,6 +52,9 @@ #define MAX_IDE_BUS 2 #define CFG_ADDR 0xf0000510 +#define MACHINE_ID_ADDR 0xff000004 +#define MACHINE_ID_VAL 0x3d8c + #define TBFREQ 16600000UL #define CLOCKFREQ 266000000UL #define BUSFREQ 66000000UL @@ -89,6 +92,22 @@ static void ppc_heathrow_cpu_reset(void *opaque) cpu_reset(CPU(cpu)); } +static uint64_t machine_id_read(void *opaque, hwaddr addr, unsigned size) +{ + return (addr == 0 && size == 2 ? MACHINE_ID_VAL : 0); +} + +static void machine_id_write(void *opaque, hwaddr addr, + uint64_t val, unsigned size) +{ + return; +} + +static const MemoryRegionOps machine_id_reg_ops = { + .read = machine_id_read, + .write = machine_id_write, +}; + static void ppc_heathrow_init(MachineState *machine) { HeathrowMachineState *hm = HEATHROW_MACHINE(machine); @@ -239,6 +258,11 @@ static void ppc_heathrow_init(MachineState *machine) } } + memory_region_init_io(&hm->machine_id, OBJECT(machine), + &machine_id_reg_ops, NULL, "machine_id", 2); + memory_region_add_subregion(get_system_memory(), MACHINE_ID_ADDR, + &hm->machine_id); + /* XXX: we register only 1 output pin for heathrow PIC */ pic_dev = qdev_new(TYPE_HEATHROW); sysbus_realize_and_unref(SYS_BUS_DEVICE(pic_dev), &error_fatal);