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Thu, 12 Nov 2020 16:36:49 +0800 Received: from mcddlt001.mediatek.inc (10.19.240.15) by MTKCAS36.mediatek.inc (172.27.4.170) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 12 Nov 2020 16:36:49 +0800 From: Weijie Gao To: CC: GSS_MTK_Uboot_upstream , Daniel Schwierzeck , Stefan Roese , Stefan Roese , Neil Armstrong , Robert Marko , Kever Yang , Jagan Teki , Srinath Mannam , Beniamino Galvani , Rayagonda Kokatanur , Weijie Gao Subject: [PATCH v4 17/23] phy: add USB PHY driver for MediaTek MT7620 SoC Date: Thu, 12 Nov 2020 16:36:48 +0800 Message-ID: <94e33a2999ac5f30a1c357b754660910964a9cca.1605169080.git.weijie.gao@mediatek.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: MIME-Version: 1.0 X-TM-SNTS-SMTP: 68A43C977D3257215CB82151EFE38654F0C37BF0D16015F6D88269F71324A5852000:8 X-MTK: N X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.34 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 0.102.3 at phobos.denx.de X-Virus-Status: Clean This patch adds USB PHY driver for MediaTek MT7620 SoC Reviewed-by: Stefan Roese Signed-off-by: Weijie Gao --- v4 changes: none v3 changes: remove duplicated dev field in mt7620_usb_phy v2 changes: none --- drivers/phy/Kconfig | 7 +++ drivers/phy/Makefile | 1 + drivers/phy/mt7620-usb-phy.c | 110 +++++++++++++++++++++++++++++++++++ 3 files changed, 118 insertions(+) create mode 100644 drivers/phy/mt7620-usb-phy.c diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index d12a6b02ad..ab638f0e7d 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -218,6 +218,13 @@ config KEYSTONE_USB_PHY This PHY is found on some Keystone (K2) devices supporting USB. +config MT7620_USB_PHY + bool "MediaTek MT7620 USB PHY support" + depends on PHY + depends on SOC_MT7620 + help + Support the intergated USB PHY in MediaTek MT7620 SoC + config MT76X8_USB_PHY bool "MediaTek MT76x8 (7628/88) USB PHY support" depends on PHY diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 45a7fe5b56..6b3761b8c8 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_MESON_G12A_USB_PHY) += meson-g12a-usb2.o meson-g12a-usb3-pcie.o obj-$(CONFIG_MSM8916_USB_PHY) += msm8916-usbh-phy.o obj-$(CONFIG_OMAP_USB2_PHY) += omap-usb2-phy.o obj-$(CONFIG_KEYSTONE_USB_PHY) += keystone-usb-phy.o +obj-$(CONFIG_MT7620_USB_PHY) += mt7620-usb-phy.o obj-$(CONFIG_MT76X8_USB_PHY) += mt76x8-usb-phy.o obj-$(CONFIG_PHY_DA8XX_USB) += phy-da8xx-usb.o obj-$(CONFIG_PHY_MTK_TPHY) += phy-mtk-tphy.o diff --git a/drivers/phy/mt7620-usb-phy.c b/drivers/phy/mt7620-usb-phy.c new file mode 100644 index 0000000000..8320df177d --- /dev/null +++ b/drivers/phy/mt7620-usb-phy.c @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020 MediaTek Inc. All Rights Reserved. + * + * Author: Weijie Gao + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +struct mt7620_usb_phy { + struct udevice *sysc; + struct clk_bulk clocks; + struct reset_ctl_bulk resets; +}; + +static int mt7620_usb_phy_power_on(struct phy *_phy) +{ + struct mt7620_usb_phy *phy = dev_get_priv(_phy->dev); + u32 mode = MT7620_SYSC_USB_HOST_MODE; + int ret; + + reset_deassert_bulk(&phy->resets); + + clk_enable_bulk(&phy->clocks); + + mdelay(10); + + ret = misc_ioctl(phy->sysc, MT7620_SYSC_IOCTL_SET_USB_MODE, &mode); + if (ret) { + dev_err(_phy->dev, + "mt7620_usbphy: failed to set USB host mode\n"); + return ret; + } + + mdelay(10); + + return 0; +} + +static int mt7620_usb_phy_power_off(struct phy *_phy) +{ + struct mt7620_usb_phy *phy = dev_get_priv(_phy->dev); + + clk_disable_bulk(&phy->clocks); + + reset_assert_bulk(&phy->resets); + + return 0; +} + +static int mt7620_usb_phy_probe(struct udevice *dev) +{ + struct mt7620_usb_phy *phy = dev_get_priv(dev); + struct ofnode_phandle_args sysc_args; + int ret; + + ret = ofnode_parse_phandle_with_args(dev->node, "mediatek,sysc", NULL, + 0, 0, &sysc_args); + if (ret) { + dev_err(dev, "mt7620_usbphy: sysc property not found\n"); + return ret; + } + + ret = uclass_get_device_by_ofnode(UCLASS_MISC, sysc_args.node, + &phy->sysc); + if (ret) { + dev_err(dev, "mt7620_usbphy: failed to sysc device\n"); + return ret; + } + + ret = clk_get_bulk(dev, &phy->clocks); + if (ret) { + dev_err(dev, "mt7620_usbphy: failed to get clocks\n"); + return ret; + } + + ret = reset_get_bulk(dev, &phy->resets); + if (ret) { + dev_err(dev, "mt7620_usbphy: failed to get reset control\n"); + return ret; + } + + return 0; +} + +static struct phy_ops mt7620_usb_phy_ops = { + .power_on = mt7620_usb_phy_power_on, + .power_off = mt7620_usb_phy_power_off, +}; + +static const struct udevice_id mt7620_usb_phy_ids[] = { + { .compatible = "mediatek,mt7620-usbphy" }, + { } +}; + +U_BOOT_DRIVER(mt7620_usb_phy) = { + .name = "mt7620_usb_phy", + .id = UCLASS_PHY, + .of_match = mt7620_usb_phy_ids, + .ops = &mt7620_usb_phy_ops, + .probe = mt7620_usb_phy_probe, + .priv_auto_alloc_size = sizeof(struct mt7620_usb_phy), +};