From patchwork Tue Sep 1 01:39:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bin Meng X-Patchwork-Id: 275045 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_INVALID, DKIM_SIGNED, FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1F33EC433E6 for ; Tue, 1 Sep 2020 01:44:43 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id DCFCE20707 for ; Tue, 1 Sep 2020 01:44:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CmTC4U6P" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DCFCE20707 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:39496 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kCvLm-00027E-2Q for qemu-devel@archiver.kernel.org; Mon, 31 Aug 2020 21:44:42 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:40872) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kCvHx-0004Ru-IY; Mon, 31 Aug 2020 21:40:45 -0400 Received: from mail-pj1-x1044.google.com ([2607:f8b0:4864:20::1044]:52562) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kCvHv-0005XV-9l; Mon, 31 Aug 2020 21:40:45 -0400 Received: by mail-pj1-x1044.google.com with SMTP id o16so877014pjr.2; Mon, 31 Aug 2020 18:40:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=WT5WFwffkEHlQ4n2tCtBx5gPoLvgfcj7uh9M96XbE44=; b=CmTC4U6Pi/awR25Nq779Xy01Px+P0BinbQkoJdhSYnvNeKJwvXoc8VlITwixLuJglu XI/oF9sAqMl8vasFOJ+yWzhC/X+hc8Uuc6ct5eui3Sr4kpXm/T+TELN9MN7P5lNh6Irl 9cA+PgIlwTLvp1XrohxtlRsk/i4WYSPwY3s2DKloOPx3TQedqpyRKtUCG+aK7GU+J2o/ xBohK2q10Z3vxCoe9QybnnPMiMv3IC5ual5ns8DfjggkA8WrcdabscmVGAeviGn5wviv uJuBuezEwY04e6/QedmBF/s6KKNkVDQJqU878SWGkbUDI+GCELhwbLn9M8BqekiyVxKr 9jvA== 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:in-reply-to :references; bh=WT5WFwffkEHlQ4n2tCtBx5gPoLvgfcj7uh9M96XbE44=; b=OtaIIrScuJQcQBlUlryTyaKJDgKQPeHn3Ea7ZQfPjqGJmPLYHy9Xcc6ngHmRzM3ANw FWbPsN1nGxRB8NETsuUFA8eyIsIc6Je8Vso83CQRHY4BW6u0V3APlq5S/tw6nk6CbcEy IxHeAApZwNQADliU/SP2Vhyqs9Ndee3BmUPaWxvuvZ2mG3wfSMYytDz2AxvIeGk7wFrj E3YEbezm+9e6AKrmovIG8AlEEY7ffjlPuUVeO4oiK3iGbuwfScD4yJOw74KPRYW4vAZl BlMfpUOowyl2dfZu9FDRV7WFaYcPDRbJdfPpZstQ9Bt0mvaSCm/bnvbXvqXyxMAR1MGk OMsQ== X-Gm-Message-State: AOAM530JvWGoVOJMQYurVW49YOzMwjBL58qcok7FsOe5urbO5TpUN5PL fAedjP0JFva8SfgiHw/f1BI= X-Google-Smtp-Source: ABdhPJxYxFjouOZTQS9mryBkMN6v0fMJcVG4r2yPGUIhxruI4d02+75q9CuUPNkeMoEeHGDUTlZJXQ== X-Received: by 2002:a17:90a:ab02:: with SMTP id m2mr2037161pjq.42.1598924441432; Mon, 31 Aug 2020 18:40:41 -0700 (PDT) Received: from pek-vx-bsp2.wrs.com (unknown-146-144.windriver.com. [147.11.146.144]) by smtp.gmail.com with ESMTPSA id l13sm8887520pgq.33.2020.08.31.18.40.38 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 31 Aug 2020 18:40:40 -0700 (PDT) From: Bin Meng To: Alistair Francis , =?utf-8?q?Philippe_Mathie?= =?utf-8?q?u-Daud=C3=A9?= , Palmer Dabbelt , qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v3 05/16] hw/char: Add Microchip PolarFire SoC MMUART emulation Date: Tue, 1 Sep 2020 09:39:00 +0800 Message-Id: <1598924352-89526-6-git-send-email-bmeng.cn@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1598924352-89526-1-git-send-email-bmeng.cn@gmail.com> References: <1598924352-89526-1-git-send-email-bmeng.cn@gmail.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::1044; envelope-from=bmeng.cn@gmail.com; helo=mail-pj1-x1044.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: =?utf-8?q?Marc-Andr=C3=A9_Lureau?= , Bin Meng , Paolo Bonzini Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Bin Meng Microchip PolarFire SoC MMUART is ns16550 compatible, with some additional registers. Create a simple MMUART model built on top of the existing ns16550 model. Signed-off-by: Bin Meng Reviewed-by: Alistair Francis --- (no changes since v2) Changes in v2: - change to update hw/char/meson.build - add impl.min_access_size and impl.max_access_size as part of MemoryRegionOps and remove the allignment check include/hw/char/mchp_pfsoc_mmuart.h | 61 ++++++++++++++++++++++++++ hw/char/mchp_pfsoc_mmuart.c | 86 +++++++++++++++++++++++++++++++++++++ MAINTAINERS | 2 + hw/char/Kconfig | 3 ++ hw/char/meson.build | 1 + 5 files changed, 153 insertions(+) create mode 100644 include/hw/char/mchp_pfsoc_mmuart.h create mode 100644 hw/char/mchp_pfsoc_mmuart.c diff --git a/include/hw/char/mchp_pfsoc_mmuart.h b/include/hw/char/mchp_pfsoc_mmuart.h new file mode 100644 index 0000000..f619902 --- /dev/null +++ b/include/hw/char/mchp_pfsoc_mmuart.h @@ -0,0 +1,61 @@ +/* + * Microchip PolarFire SoC MMUART emulation + * + * Copyright (c) 2020 Wind River Systems, Inc. + * + * Author: + * Bin Meng + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_MCHP_PFSOC_MMUART_H +#define HW_MCHP_PFSOC_MMUART_H + +#include "hw/char/serial.h" + +#define MCHP_PFSOC_MMUART_REG_SIZE 52 + +typedef struct MchpPfSoCMMUartState { + MemoryRegion iomem; + hwaddr base; + qemu_irq irq; + + SerialMM *serial; + + uint32_t reg[MCHP_PFSOC_MMUART_REG_SIZE / sizeof(uint32_t)]; +} MchpPfSoCMMUartState; + +/** + * mchp_pfsoc_mmuart_create - Create a Microchip PolarFire SoC MMUART + * + * This is a helper routine for board to create a MMUART device that is + * compatible with Microchip PolarFire SoC. + * + * @sysmem: system memory region to map + * @base: base address of the MMUART registers + * @irq: IRQ number of the MMUART device + * @chr: character device to associate to + * + * @return: a pointer to the device specific control structure + */ +MchpPfSoCMMUartState *mchp_pfsoc_mmuart_create(MemoryRegion *sysmem, + hwaddr base, qemu_irq irq, Chardev *chr); + +#endif /* HW_MCHP_PFSOC_MMUART_H */ diff --git a/hw/char/mchp_pfsoc_mmuart.c b/hw/char/mchp_pfsoc_mmuart.c new file mode 100644 index 0000000..8a002b0 --- /dev/null +++ b/hw/char/mchp_pfsoc_mmuart.c @@ -0,0 +1,86 @@ +/* + * Microchip PolarFire SoC MMUART emulation + * + * Copyright (c) 2020 Wind River Systems, Inc. + * + * Author: + * Bin Meng + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 or + * (at your option) version 3 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, see . + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "chardev/char.h" +#include "exec/address-spaces.h" +#include "hw/char/mchp_pfsoc_mmuart.h" + +static uint64_t mchp_pfsoc_mmuart_read(void *opaque, hwaddr addr, unsigned size) +{ + MchpPfSoCMMUartState *s = opaque; + + if (addr >= MCHP_PFSOC_MMUART_REG_SIZE) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: read: addr=0x%" HWADDR_PRIx "\n", + __func__, addr); + return 0; + } + + return s->reg[addr / sizeof(uint32_t)]; +} + +static void mchp_pfsoc_mmuart_write(void *opaque, hwaddr addr, + uint64_t value, unsigned size) +{ + MchpPfSoCMMUartState *s = opaque; + uint32_t val32 = (uint32_t)value; + + if (addr >= MCHP_PFSOC_MMUART_REG_SIZE) { + qemu_log_mask(LOG_GUEST_ERROR, "%s: bad write: addr=0x%" HWADDR_PRIx + " v=0x%x\n", __func__, addr, val32); + return; + } + + s->reg[addr / sizeof(uint32_t)] = val32; +} + +static const MemoryRegionOps mchp_pfsoc_mmuart_ops = { + .read = mchp_pfsoc_mmuart_read, + .write = mchp_pfsoc_mmuart_write, + .endianness = DEVICE_LITTLE_ENDIAN, + .impl = { + .min_access_size = 4, + .max_access_size = 4, + }, +}; + +MchpPfSoCMMUartState *mchp_pfsoc_mmuart_create(MemoryRegion *sysmem, + hwaddr base, qemu_irq irq, Chardev *chr) +{ + MchpPfSoCMMUartState *s; + + s = g_new0(MchpPfSoCMMUartState, 1); + + memory_region_init_io(&s->iomem, NULL, &mchp_pfsoc_mmuart_ops, s, + "mchp.pfsoc.mmuart", 0x1000); + + s->base = base; + s->irq = irq; + + s->serial = serial_mm_init(sysmem, base, 2, irq, 399193, chr, + DEVICE_LITTLE_ENDIAN); + + memory_region_add_subregion(sysmem, base + 0x20, &s->iomem); + + return s; +} diff --git a/MAINTAINERS b/MAINTAINERS index 5359b39..4002d51 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1320,7 +1320,9 @@ M: Bin Meng L: qemu-riscv@nongnu.org S: Supported F: hw/riscv/microchip_pfsoc.c +F: hw/char/mchp_pfsoc_mmuart.c F: include/hw/riscv/microchip_pfsoc.h +F: include/hw/char/mchp_pfsoc_mmuart.h RX Machines ----------- diff --git a/hw/char/Kconfig b/hw/char/Kconfig index b7e0e4d..1d64555 100644 --- a/hw/char/Kconfig +++ b/hw/char/Kconfig @@ -52,3 +52,6 @@ config RENESAS_SCI config AVR_USART bool + +config MCHP_PFSOC_MMUART + bool diff --git a/hw/char/meson.build b/hw/char/meson.build index e888215..ae27932 100644 --- a/hw/char/meson.build +++ b/hw/char/meson.build @@ -32,6 +32,7 @@ softmmu_ss.add(when: 'CONFIG_RASPI', if_true: files('bcm2835_aux.c')) softmmu_ss.add(when: 'CONFIG_RENESAS_SCI', if_true: files('renesas_sci.c')) softmmu_ss.add(when: 'CONFIG_SH4', if_true: files('sh_serial.c')) softmmu_ss.add(when: 'CONFIG_STM32F2XX_USART', if_true: files('stm32f2xx_usart.c')) +softmmu_ss.add(when: 'CONFIG_MCHP_PFSOC_MMUART', if_true: files('mchp_pfsoc_mmuart.c')) specific_ss.add(when: 'CONFIG_TERMINAL3270', if_true: files('terminal3270.c')) specific_ss.add(when: 'CONFIG_VIRTIO', if_true: files('virtio-serial-bus.c'))