From patchwork Tue Jan 16 01:37:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Andrey Smirnov X-Patchwork-Id: 10165637 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id DFE4E60325 for ; Tue, 16 Jan 2018 01:40:06 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CDEB11FF29 for ; Tue, 16 Jan 2018 01:40:06 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BDAA3203B9; Tue, 16 Jan 2018 01:40:06 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 170331FF29 for ; Tue, 16 Jan 2018 01:40:06 +0000 (UTC) Received: from localhost ([::1]:52010 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebGEP-0008Hr-7f for patchwork-qemu-devel@patchwork.kernel.org; Mon, 15 Jan 2018 20:40:05 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38784) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ebGCA-00069N-AR for qemu-devel@nongnu.org; Mon, 15 Jan 2018 20:37:47 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ebGC8-0005NO-VU for qemu-devel@nongnu.org; Mon, 15 Jan 2018 20:37:46 -0500 Received: from mail-pl0-x243.google.com ([2607:f8b0:400e:c01::243]:32769) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ebGC6-0005Ir-0M; Mon, 15 Jan 2018 20:37:42 -0500 Received: by mail-pl0-x243.google.com with SMTP id t4so2143741plo.0; Mon, 15 Jan 2018 17:37:41 -0800 (PST) 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 :mime-version:content-transfer-encoding; bh=1N3LunBrcPww4HeQTZQR8nlbvVdg4PehJSRwx3W+YsA=; b=PessSaHZn3+vM7evWsyf+pZl3MVi2SaIcSlPOUiRHoQTCi6Eo56A6FVcBUIX4pqYhi pyCzn/ToTo0iCcAOWNDIvwjP0jaqt846cOOuRQTR61uEyhhbJX+E5f4ScDlLgYqtSsi/ KjS5gPZ3o6zwTscfVGbNs78Lkrup9d1NLYT1jlo4em/Tox3PKvPZdobV9EnCnV48u8O+ kloZdM1Z5i6P7s3AQkk+d8XTQiJOFQd8JRabNSmR2kCK3NxgxAzzu1NTWM/2YsZ6h2rp k/03lbBI6i898WsNFnjANOwezueYGYmQN6FyIHrexHpks9IIf1dnWbVLry/yW/03gXmK DK1g== 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:mime-version:content-transfer-encoding; bh=1N3LunBrcPww4HeQTZQR8nlbvVdg4PehJSRwx3W+YsA=; b=KFL7yrnDHuwf7JNhTPPgDoYA2Slu4xsjeXHPkIf4C9lMehtSblV7VTE2adoYWOYjdC jn1Jy+D4Swj+aVgc6mddpjHZksuYnlwLe12v2YiQ3ur7mjEpKMYd/9Cvyj8MyIiVsclJ CMlDh+e1jRp7SIGLid8cpPDjYHsDCsmpo8p80R3LY8625Eq7okI1fgIKb5pJcsQHMESl dAZxTAsqYg7tcQuzcEv7vo7XyzrneK0ScSUBU5kJ3GuM3xrKHPW9YybQrH3tFLV5bla7 vxQThvBOEXqA+Xm84ns7B/Of8z1L4paHv8ELUeO2FXUn8GK9RsMtHtZSCJQbXvdfa0KF H99Q== X-Gm-Message-State: AKGB3mJbjZ2AEEpTUXniG2axSCBBSoufW3nGY6DeirkuaaLtMrAshxmk /whX94TEDQ/FF69VaVjUTiCTBfAO X-Google-Smtp-Source: ACJfBoszRuIQelM9wjpclDBScJESPgEpZpSIcWkwGubfuljh5eDYJIJJoOVRQ3agXCrCB13XMAnM1w== X-Received: by 10.159.247.138 with SMTP id e10mr31824491pls.279.1516066660814; Mon, 15 Jan 2018 17:37:40 -0800 (PST) Received: from squirtle.lan (c-24-22-235-96.hsd1.wa.comcast.net. [24.22.235.96]) by smtp.gmail.com with ESMTPSA id s65sm1023795pfk.7.2018.01.15.17.37.39 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Mon, 15 Jan 2018 17:37:40 -0800 (PST) From: Andrey Smirnov To: qemu-arm@nongnu.org Date: Mon, 15 Jan 2018 17:37:03 -0800 Message-Id: <20180116013709.13830-9-andrew.smirnov@gmail.com> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180116013709.13830-1-andrew.smirnov@gmail.com> References: <20180116013709.13830-1-andrew.smirnov@gmail.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c01::243 Subject: [Qemu-devel] [PATCH v4 08/14] i.MX: Add implementation of i.MX7 GPR IP block 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: Peter Maydell , Andrey Smirnov , Jason Wang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, yurovsky@gmail.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP Add minimal code needed to allow upstream Linux guest to boot. Cc: Peter Maydell Cc: Jason Wang Cc: Philippe Mathieu-Daudé Cc: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Cc: yurovsky@gmail.com Signed-off-by: Andrey Smirnov Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Peter Maydell --- hw/misc/Makefile.objs | 1 + hw/misc/imx7_gpr.c | 119 +++++++++++++++++++++++++++++++++++++++++++++ include/hw/misc/imx7_gpr.h | 28 +++++++++++ 3 files changed, 148 insertions(+) create mode 100644 hw/misc/imx7_gpr.c create mode 100644 include/hw/misc/imx7_gpr.h diff --git a/hw/misc/Makefile.objs b/hw/misc/Makefile.objs index 019886912c..fce426eb75 100644 --- a/hw/misc/Makefile.objs +++ b/hw/misc/Makefile.objs @@ -36,6 +36,7 @@ obj-$(CONFIG_IMX) += imx6_src.o obj-$(CONFIG_IMX) += imx7_ccm.o obj-$(CONFIG_IMX) += imx2_wdt.o obj-$(CONFIG_IMX) += imx7_snvs.o +obj-$(CONFIG_IMX) += imx7_gpr.o obj-$(CONFIG_MILKYMIST) += milkymist-hpdmc.o obj-$(CONFIG_MILKYMIST) += milkymist-pfpu.o obj-$(CONFIG_MAINSTONE) += mst_fpga.o diff --git a/hw/misc/imx7_gpr.c b/hw/misc/imx7_gpr.c new file mode 100644 index 0000000000..9e8ccea9e8 --- /dev/null +++ b/hw/misc/imx7_gpr.c @@ -0,0 +1,119 @@ +/* + * Copyright (c) 2017, Impinj, Inc. + * + * i.MX7 GPR IP block emulation code + * + * Author: Andrey Smirnov + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + * + * Bare minimum emulation code needed to support being able to shut + * down linux guest gracefully. + */ + +#include "qemu/osdep.h" +#include "hw/misc/imx7_gpr.h" +#include "qemu/log.h" +#include "sysemu/sysemu.h" + +enum IMX7GPRRegisters { + IOMUXC_GPR0 = 0x00, + IOMUXC_GPR1 = 0x04, + IOMUXC_GPR2 = 0x08, + IOMUXC_GPR3 = 0x0c, + IOMUXC_GPR4 = 0x10, + IOMUXC_GPR5 = 0x14, + IOMUXC_GPR6 = 0x18, + IOMUXC_GPR7 = 0x1c, + IOMUXC_GPR8 = 0x20, + IOMUXC_GPR9 = 0x24, + IOMUXC_GPR10 = 0x28, + IOMUXC_GPR11 = 0x2c, + IOMUXC_GPR12 = 0x30, + IOMUXC_GPR13 = 0x34, + IOMUXC_GPR14 = 0x38, + IOMUXC_GPR15 = 0x3c, + IOMUXC_GPR16 = 0x40, + IOMUXC_GPR17 = 0x44, + IOMUXC_GPR18 = 0x48, + IOMUXC_GPR19 = 0x4c, + IOMUXC_GPR20 = 0x50, + IOMUXC_GPR21 = 0x54, + IOMUXC_GPR22 = 0x58, +}; + +#define IMX7D_GPR1_IRQ_MASK BIT(12) +#define IMX7D_GPR1_ENET1_TX_CLK_SEL_MASK BIT(13) +#define IMX7D_GPR1_ENET2_TX_CLK_SEL_MASK BIT(14) +#define IMX7D_GPR1_ENET_TX_CLK_SEL_MASK (0x3 << 13) +#define IMX7D_GPR1_ENET1_CLK_DIR_MASK BIT(17) +#define IMX7D_GPR1_ENET2_CLK_DIR_MASK BIT(18) +#define IMX7D_GPR1_ENET_CLK_DIR_MASK (0x3 << 17) + +#define IMX7D_GPR5_CSI_MUX_CONTROL_MIPI BIT(4) +#define IMX7D_GPR12_PCIE_PHY_REFCLK_SEL BIT(5) +#define IMX7D_GPR22_PCIE_PHY_PLL_LOCKED BIT(31) + + +static uint64_t imx7_gpr_read(void *opaque, hwaddr offset, unsigned size) +{ + if (offset == IOMUXC_GPR22) { + return IMX7D_GPR22_PCIE_PHY_PLL_LOCKED; + } + + return 0; +} + +static void imx7_gpr_write(void *opaque, hwaddr offset, + uint64_t v, unsigned size) +{ +} + +static const struct MemoryRegionOps imx7_gpr_ops = { + .read = imx7_gpr_read, + .write = imx7_gpr_write, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + /* + * Our device would not work correctly if the guest was doing + * unaligned access. This might not be a limitation on the + * real device but in practice there is no reason for a guest + * to access this device unaligned. + */ + .min_access_size = 4, + .max_access_size = 4, + .unaligned = false, + }, +}; + +static void imx7_gpr_init(Object *obj) +{ + SysBusDevice *sd = SYS_BUS_DEVICE(obj); + IMX7GPRState *s = IMX7_GPR(obj); + + memory_region_init_io(&s->mmio, obj, &imx7_gpr_ops, s, + TYPE_IMX7_GPR, 64 * 1024); + sysbus_init_mmio(sd, &s->mmio); +} + +static void imx7_gpr_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + + dc->desc = "i.MX7 General Purpose Registers Module"; +} + +static const TypeInfo imx7_gpr_info = { + .name = TYPE_IMX7_GPR, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(IMX7GPRState), + .instance_init = imx7_gpr_init, + .class_init = imx7_gpr_class_init, +}; + +static void imx7_gpr_register_type(void) +{ + type_register_static(&imx7_gpr_info); +} +type_init(imx7_gpr_register_type) diff --git a/include/hw/misc/imx7_gpr.h b/include/hw/misc/imx7_gpr.h new file mode 100644 index 0000000000..e19373d274 --- /dev/null +++ b/include/hw/misc/imx7_gpr.h @@ -0,0 +1,28 @@ +/* + * Copyright (c) 2017, Impinj, Inc. + * + * i.MX7 GPR IP block emulation code + * + * Author: Andrey Smirnov + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#ifndef IMX7_GPR_H +#define IMX7_GPR_H + +#include "qemu/bitops.h" +#include "hw/sysbus.h" + +#define TYPE_IMX7_GPR "imx7.gpr" +#define IMX7_GPR(obj) OBJECT_CHECK(IMX7GPRState, (obj), TYPE_IMX7_GPR) + +typedef struct IMX7GPRState { + /* */ + SysBusDevice parent_obj; + + MemoryRegion mmio; +} IMX7GPRState; + +#endif /* IMX7_GPR_H */