From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 18A94C433EF for ; Fri, 1 Apr 2022 01:14:41 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 3BE75842B1; Fri, 1 Apr 2022 03:14:38 +0200 (CEST) Authentication-Results: phobos.denx.de; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1648775678; bh=lOA3/KrKn8cMQTsLsVzdeOUq2D1neZEi07lLJpYqWaU=; h=From:To:Cc:Subject:Date:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=kHnjbznXcpTQT9VGNaWxKpvoP/2HBsiyBubOl1w+yMHFJPpsLq5K7a5a0CxzdDjty Mi0GONmRUGKBig869bsnnmD4MTje6bDOXZ6zHWyAlBza53jToRL5jhV5nwNLCDmtFv A/Q1eddx9knb+7zAP0SDuFVpF06R/8zRdedQbstjJj7bz+TNK9LjDI2r4DARVP4PvB mAqXwA9LoT9iFUN0qHOy1rRtBG33kjclmyvZkRKLmqyh9KuXlfW+nuV4xGrOnEJmEp Hdc9eUceLW6jUSZEI5ojQ8c6sTwBbicwIm6+wsHObtEgv0Npl3Bq9Pocxe1sXN9ata pgXcGPQcu6VkQ== Received: from tr.lan (ip-89-176-112-137.net.upcbroadband.cz [89.176.112.137]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: marex@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 9861E842AD; Fri, 1 Apr 2022 03:14:36 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1648775676; bh=lOA3/KrKn8cMQTsLsVzdeOUq2D1neZEi07lLJpYqWaU=; h=From:To:Cc:Subject:Date:From; b=eg3Y/9e6ZuwIXUquizBUK7lKSipqwx6J+uV5SFXIBSYCLJPUg2KDsYUCy4C1nlEiW SaRCPs8G58OGc7TCQjaH8OdaML1hDYPyskv98QwnaBcIVI8PMcfdy/zBYrDjLhf/Vd l7VfqYdvm6hEfyHPvN36zAz/6XzWfiQMHbqGExULZzkgU9oWAWSm2ggEEDpgrtncgG bDCj8VWEZPyuF/QYIwvwhAUYqvytQ0AR+bbtBrdvTzNzMC8LWwlKMZU0bgP0qJCop3 HJVNG9IFB0vYJF4w5fNBaUZvgfT3hmXxuWmOuUBAj6OgLo09vT6dz7fdW5WvC+Ma+Y pTQXAe8bpRnuQ== From: Marek Vasut To: u-boot@lists.denx.de Cc: Marek Vasut , Fabio Estevam , Peng Fan , Stefano Babic Subject: [PATCH] imx: power-domain: Add i.MX8MP HSIOMIX driver Date: Fri, 1 Apr 2022 03:14:22 +0200 Message-Id: <20220401011422.701505-1-marex@denx.de> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.5 at phobos.denx.de X-Virus-Status: Clean Add trivial driver for i.MX8MP HSIOMIX handling. This is responsible for enabling the GPCv2 power domains and clock for USB 3.0 and PCIe in the correct order. Currently supported is the USB 3.0 part which can be tested, PCIe support should be easy to add. Signed-off-by: Marek Vasut Cc: Fabio Estevam Cc: Peng Fan Cc: Stefano Babic --- drivers/power/domain/Kconfig | 7 ++ drivers/power/domain/Makefile | 1 + drivers/power/domain/imx8mp-hsiomix.c | 162 ++++++++++++++++++++++++++ 3 files changed, 170 insertions(+) create mode 100644 drivers/power/domain/imx8mp-hsiomix.c diff --git a/drivers/power/domain/Kconfig b/drivers/power/domain/Kconfig index 04fc0054323..7e1b8c072fa 100644 --- a/drivers/power/domain/Kconfig +++ b/drivers/power/domain/Kconfig @@ -40,6 +40,13 @@ config IMX8M_POWER_DOMAIN Enable support for manipulating NXP i.MX8M on-SoC power domains via requests to the ATF. +config IMX8MP_HSIOMIX_BLKCTRL + bool "Enable i.MX8MP HSIOMIX domain driver" + depends on POWER_DOMAIN && IMX8MP + select CLK + help + Enable support for manipulating NXP i.MX8MP on-SoC HSIOMIX block controller. + config MTK_POWER_DOMAIN bool "Enable the MediaTek power domain driver" depends on POWER_DOMAIN && ARCH_MEDIATEK diff --git a/drivers/power/domain/Makefile b/drivers/power/domain/Makefile index 7c8af67dbd6..e6244776216 100644 --- a/drivers/power/domain/Makefile +++ b/drivers/power/domain/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_APPLE_PMGR_POWER_DOMAIN) += apple-pmgr.o obj-$(CONFIG_BCM6328_POWER_DOMAIN) += bcm6328-power-domain.o obj-$(CONFIG_IMX8_POWER_DOMAIN) += imx8-power-domain-legacy.o imx8-power-domain.o obj-$(CONFIG_IMX8M_POWER_DOMAIN) += imx8m-power-domain.o +obj-$(CONFIG_IMX8MP_HSIOMIX_BLKCTRL) += imx8mp-hsiomix.o obj-$(CONFIG_MTK_POWER_DOMAIN) += mtk-power-domain.o obj-$(CONFIG_MESON_GX_VPU_POWER_DOMAIN) += meson-gx-pwrc-vpu.o obj-$(CONFIG_MESON_EE_POWER_DOMAIN) += meson-ee-pwrc.o diff --git a/drivers/power/domain/imx8mp-hsiomix.c b/drivers/power/domain/imx8mp-hsiomix.c new file mode 100644 index 00000000000..6b4420f044b --- /dev/null +++ b/drivers/power/domain/imx8mp-hsiomix.c @@ -0,0 +1,162 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2022 Marek Vasut + */ + +#include +#include +#include +#include +#include +#include +#include + +#include + +#define GPR_REG0 0x0 +#define PCIE_CLOCK_MODULE_EN BIT(0) +#define USB_CLOCK_MODULE_EN BIT(1) + +struct imx8mp_hsiomix_priv { + void __iomem *base; + struct clk clk_usb; + struct power_domain pd_bus; + struct power_domain pd_usb; + struct power_domain pd_usb_phy1; + struct power_domain pd_usb_phy2; +}; + +static int imx8mp_hsiomix_on(struct power_domain *power_domain) +{ + struct udevice *dev = power_domain->dev; + struct imx8mp_hsiomix_priv *priv = dev_get_priv(dev); + struct power_domain *domain; + int ret; + + ret = power_domain_on(&priv->pd_bus); + if (ret) + return ret; + + if (power_domain->id == IMX8MP_HSIOBLK_PD_USB) { + domain = &priv->pd_usb; + } else if (power_domain->id == IMX8MP_HSIOBLK_PD_USB_PHY1) { + domain = &priv->pd_usb_phy1; + } else if (power_domain->id == IMX8MP_HSIOBLK_PD_USB_PHY2) { + domain = &priv->pd_usb_phy2; + } else { + ret = -EINVAL; + goto err_pd; + } + + ret = power_domain_on(domain); + if (ret) + goto err_pd; + + ret = clk_enable(&priv->clk_usb); + if (ret) + goto err_clk; + + if (power_domain->id == IMX8MP_HSIOBLK_PD_USB) + setbits_le32(priv->base + GPR_REG0, USB_CLOCK_MODULE_EN); + + return 0; + +err_clk: + power_domain_off(domain); +err_pd: + power_domain_off(&priv->pd_bus); + return ret; +} + +static int imx8mp_hsiomix_off(struct power_domain *power_domain) +{ + struct udevice *dev = power_domain->dev; + struct imx8mp_hsiomix_priv *priv = dev_get_priv(dev); + int ret; + + if (power_domain->id == IMX8MP_HSIOBLK_PD_USB) + clrbits_le32(priv->base + GPR_REG0, USB_CLOCK_MODULE_EN); + + clk_disable(&priv->clk_usb); + + if (power_domain->id == IMX8MP_HSIOBLK_PD_USB) + power_domain_off(&priv->pd_usb); + else if (power_domain->id == IMX8MP_HSIOBLK_PD_USB_PHY1) + power_domain_off(&priv->pd_usb_phy1); + else if (power_domain->id == IMX8MP_HSIOBLK_PD_USB_PHY2) + power_domain_off(&priv->pd_usb_phy2); + + power_domain_off(&priv->pd_bus); + + return 0; +} + +static int imx8mp_hsiomix_of_xlate(struct power_domain *power_domain, + struct ofnode_phandle_args *args) +{ + struct udevice *dev = power_domain->dev; + + power_domain->id = args->args[0]; + + return 0; +} + +static int imx8mp_hsiomix_probe(struct udevice *dev) +{ + struct imx8mp_hsiomix_priv *priv = dev_get_priv(dev); + int ret; + + priv->base = dev_read_addr_ptr(dev); + + ret = clk_get_by_name(dev, "usb", &priv->clk_usb); + if (ret < 0) + return ret; + + ret = power_domain_get_by_name(dev, &priv->pd_bus, "bus"); + if (ret < 0) + goto err_pd_bus; + + ret = power_domain_get_by_name(dev, &priv->pd_usb, "usb"); + if (ret < 0) + goto err_pd_usb; + + ret = power_domain_get_by_name(dev, &priv->pd_usb_phy1, "usb-phy1"); + if (ret < 0) + goto err_pd_usb_phy1; + + ret = power_domain_get_by_name(dev, &priv->pd_usb_phy2, "usb-phy2"); + if (ret < 0) + goto err_pd_usb_phy2; + + return 0; + +err_pd_usb_phy2: + power_domain_free(&priv->pd_usb_phy1); +err_pd_usb_phy1: + power_domain_free(&priv->pd_usb); +err_pd_usb: + power_domain_free(&priv->pd_bus); +err_pd_bus: + clk_free(&priv->clk_usb); + return ret; +} + +static const struct udevice_id imx8mp_hsiomix_ids[] = { + { .compatible = "fsl,imx8mp-hsio-blk-ctrl" }, + { } +}; + +struct power_domain_ops imx8mp_hsiomix_ops = { + .on = imx8mp_hsiomix_on, + .off = imx8mp_hsiomix_off, + .of_xlate = imx8mp_hsiomix_of_xlate, +}; + +U_BOOT_DRIVER(imx8mp_hsiomix) = { + .name = "imx8mp_hsiomix", + .id = UCLASS_POWER_DOMAIN, + .of_match = imx8mp_hsiomix_ids, + .probe = imx8mp_hsiomix_probe, + .priv_auto = sizeof(struct imx8mp_hsiomix_priv), + .ops = &imx8mp_hsiomix_ops, +}; -- 2.35.1