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 CA739C433EF for ; Fri, 1 Apr 2022 14:06:55 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 8B55B84093; Fri, 1 Apr 2022 16:06:48 +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=1648822009; bh=aerEsEyddpEq7HD2LmKStb0u7SUdUhMps790yQ7YJWY=; h=From:To:Cc:Subject:Date:List-Id:List-Unsubscribe:List-Archive: List-Post:List-Help:List-Subscribe:From; b=pfe81Ax4VdeGOIGz88p03k2o4VczPvaiLAFPvMxNHFdMzR9YUdGWiZWpx2E7qMA0T khq5bJanC5TXVT5LVtuzDhfVXyOUjTnFq7yrhm6vyZe4ChmwqcQ+RG2KijDYu4IwZT aJ+VjvhVJigICEhM/vQCQeWjzHTVP70tIROaeu0B0rhkALh4u7dvFsLFBnegmTnK1G sLxipOySYsWz7TV51kN7R5fKYHzfRC8ugOfu5g4MnnhFDXmtM4ZmepjtpBHueNjAYE JTdmTWnyTr8Fg8Iy5VHMuazh91dCYP8AMeER3YRQUDhMnCbIVJbTpNe+HtoKrCm5hQ q2rVgdyDeOstA== 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 AAAFE842C0; Fri, 1 Apr 2022 16:06:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1648822006; bh=aerEsEyddpEq7HD2LmKStb0u7SUdUhMps790yQ7YJWY=; h=From:To:Cc:Subject:Date:From; b=bC8YHCjFaWva7tDmFDChmFCb5vxRrqZlHdMkQ0Z2w89r5MBD7obhe/gwkITXUbW+N CIsLUtj4ks628Dq5lmNX6QrFtc+45OjjUmy6Lkvb/URpmzLp05/D5CZX0dyA9onyGI wmaD4LnTw6TtYtyJOBm0Q6QBjeIM0O/Pf4ULv+5gVzgFL184JBycJpkheifB4qornf jEaNGZiyVygmuCW2/vLFPuTjSx0/30uolpV7CdmPt1dfR909DjHXKYjvk62apJ9Qbh Q9NYxiQW/ri2qgknUPJHysBGpn8opt85iMR+uLI0e5JpD5I7IOLgBPcuiCD6MuA6a/ sMNG4p7T1QZ7g== From: Marek Vasut To: u-boot@lists.denx.de Cc: Marek Vasut , Fabio Estevam , Peng Fan , Stefano Babic Subject: [PATCH v2] imx: power-domain: Add i.MX8MP HSIOMIX driver Date: Fri, 1 Apr 2022 16:06:41 +0200 Message-Id: <20220401140641.142853-1-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 --- V2: Drop two left over unused variables which triggered build warning --- drivers/power/domain/Kconfig | 7 ++ drivers/power/domain/Makefile | 1 + drivers/power/domain/imx8mp-hsiomix.c | 159 ++++++++++++++++++++++++++ 3 files changed, 167 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..6a721a934a7 --- /dev/null +++ b/drivers/power/domain/imx8mp-hsiomix.c @@ -0,0 +1,159 @@ +// 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); + + 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) +{ + 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