From nobody Tue Feb 10 21:41:18 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=163.com ARC-Seal: i=1; a=rsa-sha256; t=1677757398; cv=none; d=zohomail.com; s=zohoarc; b=iDdtgM8dDxT2L/MrES6iqV1Xor0ly0/RuXaenCct3ukhVhx2dOB83+f+J4Sv9OZmcICCHskRCMPfP8sGrlSzYYYJqYkA8Zi0QGf1U6a5duxmajMXS2+7vMQGK7klcQGOhr4IkFIKWoj0aGTxF1fkGvB91OSAlkXITZSp1vS92Ug= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1677757398; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=f9kMM+dxEpew9cx4pL3nax+OxmxeKeCN7PZ/tpvgjE8=; b=fcWstYBaENcDEoQE8rl26h2HznhreJyVG40GweZRAJNI+UIkAbxGaEl2g19j4O2mZxZ4Dk4dFHSN5iPJ2IvdCIkU61sQUyPnjQsXUppmlgnhQ9cnYOXXv9m4FmWBB0oDrSf5eo+7KV/tFlgNb3hwdLpkE/JlgwNahOESJHCJHYY= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1677757398885250.4398824181667; Thu, 2 Mar 2023 03:43:18 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pXhJg-00046Z-NF; Thu, 02 Mar 2023 06:41:44 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pXhJe-00044O-Ie; Thu, 02 Mar 2023 06:41:42 -0500 Received: from m12.mail.163.com ([123.126.96.234]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pXhJZ-0006AA-6S; Thu, 02 Mar 2023 06:41:42 -0500 Received: from DESKTOP-B1R4FVG.localdomain (unknown [144.123.156.254]) by smtp20 (Coremail) with SMTP id H91pCgBni79OiwBknjVaGA--.63318S9; Thu, 02 Mar 2023 19:41:07 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:Subject:Date:Message-Id:MIME-Version; bh=f9kMM +dxEpew9cx4pL3nax+OxmxeKeCN7PZ/tpvgjE8=; b=PlcImAcHHsx/ESTo7xBWI mOnlgH3ov9KNmOpd+Y4OLtj+PE/CCkIQXXeTlMtIly80XeSZ/FM7NOABKI1n/KHT Gws6NuKZQQsWWjejdC0kAsxkTSIt1qKUISCDXrTu7NEHVBcssJ4b/GA8fLMOfU6a BQv0a1piR9L1LsfaaAtZb0= From: qianfanguijin@163.com To: qemu-arm@nongnu.org, qemu-devel@nongnu.org Cc: Strahinja Jankovic , Peter Maydell , Beniamino Galvani , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Niek Linnenbank , qianfan Zhao Subject: [RFC PATCH v1 07/12] hw: arm: allwinner-r40: Add 5 TWI controllers Date: Thu, 2 Mar 2023 19:40:56 +0800 Message-Id: <20230302114102.32236-8-qianfanguijin@163.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230302114102.32236-1-qianfanguijin@163.com> References: <20230302114102.32236-1-qianfanguijin@163.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: H91pCgBni79OiwBknjVaGA--.63318S9 X-Coremail-Antispam: 1Uf129KBjvJXoW3Jr4kWF17Wry3KFWkKr47XFb_yoW7ZF48pF W7C390grW0gw1rAr4kKws3XrySy348Gr17K3WS9FWftr10gr4kXry2va1UCF15Krs7Way3 XrZ5JFWxG3W7taDanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x0pRT5lbUUUUU= X-Originating-IP: [144.123.156.254] X-CM-SenderInfo: htld0w5dqj3xxmlqqiywtou0bp/1tbiGhMm7VaEEb8QVwAAs5 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=123.126.96.234; envelope-from=qianfanguijin@163.com; helo=m12.mail.163.com 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @163.com) X-ZM-MESSAGEID: 1677757400041100007 Content-Type: text/plain; charset="utf-8" From: qianfan Zhao TWI(i2c) is designed to be used as an interface between CPU host and the serial 2-Wire bus. It can support all standard 2-Wire transfer, can be operated in standard mode(100kbit/s) or fast-mode, supporting data rate up to 400kbit/s. Signed-off-by: qianfan Zhao --- hw/arm/allwinner-r40.c | 47 ++++++++++++++++++++++++++++++---- include/hw/arm/allwinner-r40.h | 11 ++++++++ 2 files changed, 53 insertions(+), 5 deletions(-) diff --git a/hw/arm/allwinner-r40.c b/hw/arm/allwinner-r40.c index 2fb1bd8805..694453d1e5 100644 --- a/hw/arm/allwinner-r40.c +++ b/hw/arm/allwinner-r40.c @@ -52,6 +52,11 @@ const hwaddr allwinner_r40_memmap[] =3D { [AW_R40_DEV_UART5] =3D 0x01c29400, [AW_R40_DEV_UART6] =3D 0x01c29800, [AW_R40_DEV_UART7] =3D 0x01c29c00, + [AW_R40_DEV_TWI0] =3D 0x01c2ac00, + [AW_R40_DEV_TWI1] =3D 0x01c2b000, + [AW_R40_DEV_TWI2] =3D 0x01c2b400, + [AW_R40_DEV_TWI3] =3D 0x01c2b800, + [AW_R40_DEV_TWI4] =3D 0x01c2c000, [AW_R40_DEV_GIC_DIST] =3D 0x01c81000, [AW_R40_DEV_GIC_CPU] =3D 0x01c82000, [AW_R40_DEV_GIC_HYP] =3D 0x01c84000, @@ -115,11 +120,6 @@ static struct AwR40Unimplemented r40_unimplemented[] = =3D { { "uart7", 0x01c29c00, 1 * KiB }, { "ps20", 0x01c2a000, 1 * KiB }, { "ps21", 0x01c2a400, 1 * KiB }, - { "twi0", 0x01c2ac00, 1 * KiB }, - { "twi1", 0x01c2b000, 1 * KiB }, - { "twi2", 0x01c2b400, 1 * KiB }, - { "twi3", 0x01c2b800, 1 * KiB }, - { "twi4", 0x01c2c000, 1 * KiB }, { "scr", 0x01c2c400, 1 * KiB }, { "tvd-top", 0x01c30000, 4 * KiB }, { "tvd0", 0x01c31000, 4 * KiB }, @@ -166,6 +166,9 @@ enum { AW_R40_GIC_SPI_UART1 =3D 2, AW_R40_GIC_SPI_UART2 =3D 3, AW_R40_GIC_SPI_UART3 =3D 4, + AW_R40_GIC_SPI_TWI0 =3D 7, + AW_R40_GIC_SPI_TWI1 =3D 8, + AW_R40_GIC_SPI_TWI2 =3D 9, AW_R40_GIC_SPI_UART4 =3D 17, AW_R40_GIC_SPI_UART5 =3D 18, AW_R40_GIC_SPI_UART6 =3D 19, @@ -176,6 +179,8 @@ enum { AW_R40_GIC_SPI_MMC1 =3D 33, AW_R40_GIC_SPI_MMC2 =3D 34, AW_R40_GIC_SPI_MMC3 =3D 35, + AW_R40_GIC_SPI_TWI3 =3D 88, + AW_R40_GIC_SPI_TWI4 =3D 89, }; =20 /* Allwinner R40 general constants */ @@ -261,6 +266,12 @@ static void allwinner_r40_init(Object *obj) object_initialize_child(obj, "mmc1", &s->mmc1, TYPE_AW_SDHOST_SUN5I); object_initialize_child(obj, "mmc2", &s->mmc2, TYPE_AW_SDHOST_SUN5I); object_initialize_child(obj, "mmc3", &s->mmc3, TYPE_AW_SDHOST_SUN5I); + + object_initialize_child(obj, "twi0", &s->i2c0, TYPE_AW_I2C_SUN6I); + object_initialize_child(obj, "twi1", &s->i2c1, TYPE_AW_I2C_SUN6I); + object_initialize_child(obj, "twi2", &s->i2c2, TYPE_AW_I2C_SUN6I); + object_initialize_child(obj, "twi3", &s->i2c3, TYPE_AW_I2C_SUN6I); + object_initialize_child(obj, "twi4", &s->i2c4, TYPE_AW_I2C_SUN6I); } =20 static void allwinner_r40_realize(DeviceState *dev, Error **errp) @@ -428,6 +439,32 @@ static void allwinner_r40_realize(DeviceState *dev, Er= ror **errp) qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_UART7), 115200, serial_hd(7), DEVICE_NATIVE_ENDIAN); =20 + /* I2C */ + sysbus_realize(SYS_BUS_DEVICE(&s->i2c0), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c0), 0, s->memmap[AW_R40_DEV_TWI0= ]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c0), 0, + qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TW= I0)); + + sysbus_realize(SYS_BUS_DEVICE(&s->i2c1), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c1), 0, s->memmap[AW_R40_DEV_TWI1= ]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c1), 0, + qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TW= I1)); + + sysbus_realize(SYS_BUS_DEVICE(&s->i2c2), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c2), 0, s->memmap[AW_R40_DEV_TWI2= ]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c2), 0, + qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TW= I2)); + + sysbus_realize(SYS_BUS_DEVICE(&s->i2c3), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c3), 0, s->memmap[AW_R40_DEV_TWI3= ]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c3), 0, + qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TW= I3)); + + sysbus_realize(SYS_BUS_DEVICE(&s->i2c4), &error_fatal); + sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c4), 0, s->memmap[AW_R40_DEV_TWI4= ]); + sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c4), 0, + qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TW= I4)); + /* Unimplemented devices */ for (i =3D 0; i < ARRAY_SIZE(r40_unimplemented); i++) { create_unimplemented_device(r40_unimplemented[i].device_name, diff --git a/include/hw/arm/allwinner-r40.h b/include/hw/arm/allwinner-r40.h index dfb5eb609c..6a7e5c1e31 100644 --- a/include/hw/arm/allwinner-r40.h +++ b/include/hw/arm/allwinner-r40.h @@ -26,6 +26,7 @@ #include "hw/intc/arm_gic.h" #include "hw/sd/allwinner-sdhost.h" #include "hw/misc/allwinner-r40-ccu.h" +#include "hw/i2c/allwinner-i2c.h" #include "target/arm/cpu.h" #include "sysemu/block-backend.h" =20 @@ -48,6 +49,11 @@ enum { AW_R40_DEV_UART5, AW_R40_DEV_UART6, AW_R40_DEV_UART7, + AW_R40_DEV_TWI0, + AW_R40_DEV_TWI1, + AW_R40_DEV_TWI2, + AW_R40_DEV_TWI3, + AW_R40_DEV_TWI4, AW_R40_DEV_GIC_DIST, AW_R40_DEV_GIC_CPU, AW_R40_DEV_GIC_HYP, @@ -89,6 +95,11 @@ struct AwR40State { AwSdHostState mmc2; AwSdHostState mmc3; AwR40ClockCtlState ccu; + AWI2CState i2c0; + AWI2CState i2c1; + AWI2CState i2c2; + AWI2CState i2c3; + AWI2CState i2c4; GICState gic; MemoryRegion sram_a1; MemoryRegion sram_a2; --=20 2.25.1