diff options
| -rw-r--r-- | drivers/phy/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/phy/Makefile | 1 | ||||
| -rw-r--r-- | drivers/phy/phy-ab8500-usb.c | 52 |
3 files changed, 59 insertions, 0 deletions
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 008186a10d..92c74b9d0b 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -64,6 +64,12 @@ config MIPI_DPHY_HELPERS help Provides a number of helpers a core functions for MIPI D-PHY drivers. +config AB8500_USB_PHY + bool "AB8500 USB PHY Driver" + depends on PHY && PMIC_AB8500 + help + Support for the USB OTG PHY in ST-Ericsson AB8500. + config BCM6318_USBH_PHY bool "BCM6318 USBH PHY support" depends on PHY && ARCH_BMIPS diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 3c4a673a83..bf03d05d9b 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_$(SPL_)PHY) += phy-uclass.o obj-$(CONFIG_$(SPL_)NOP_PHY) += nop-phy.o obj-$(CONFIG_MIPI_DPHY_HELPERS) += phy-core-mipi-dphy.o +obj-$(CONFIG_AB8500_USB_PHY) += phy-ab8500-usb.o obj-$(CONFIG_BCM6318_USBH_PHY) += bcm6318-usbh-phy.o obj-$(CONFIG_BCM6348_USBH_PHY) += bcm6348-usbh-phy.o obj-$(CONFIG_BCM6358_USBH_PHY) += bcm6358-usbh-phy.o diff --git a/drivers/phy/phy-ab8500-usb.c b/drivers/phy/phy-ab8500-usb.c new file mode 100644 index 0000000000..0e04595717 --- /dev/null +++ b/drivers/phy/phy-ab8500-usb.c @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2019 Stephan Gerhold */ + +#include <common.h> +#include <dm.h> +#include <generic-phy.h> +#include <linux/bitops.h> +#include <power/pmic.h> +#include <power/ab8500.h> + +#define AB8500_USB_PHY_CTRL_REG AB8500_USB(0x8A) +#define AB8500_BIT_PHY_CTRL_HOST_EN BIT(0) +#define AB8500_BIT_PHY_CTRL_DEVICE_EN BIT(1) +#define AB8500_USB_PHY_CTRL_MASK (AB8500_BIT_PHY_CTRL_HOST_EN |\ + AB8500_BIT_PHY_CTRL_DEVICE_EN) + +static int ab8500_usb_phy_power_on(struct phy *phy) +{ + struct udevice *dev = phy->dev; + uint set = AB8500_BIT_PHY_CTRL_DEVICE_EN; + + if (CONFIG_IS_ENABLED(USB_MUSB_HOST)) + set = AB8500_BIT_PHY_CTRL_HOST_EN; + + return pmic_clrsetbits(dev->parent, AB8500_USB_PHY_CTRL_REG, + AB8500_USB_PHY_CTRL_MASK, set); +} + +static int ab8500_usb_phy_power_off(struct phy *phy) +{ + struct udevice *dev = phy->dev; + + return pmic_clrsetbits(dev->parent, AB8500_USB_PHY_CTRL_REG, + AB8500_USB_PHY_CTRL_MASK, 0); +} + +struct phy_ops ab8500_usb_phy_ops = { + .power_on = ab8500_usb_phy_power_on, + .power_off = ab8500_usb_phy_power_off, +}; + +static const struct udevice_id ab8500_usb_phy_ids[] = { + { .compatible = "stericsson,ab8500-usb" }, + { } +}; + +U_BOOT_DRIVER(ab8500_usb_phy) = { + .name = "ab8500_usb_phy", + .id = UCLASS_PHY, + .of_match = ab8500_usb_phy_ids, + .ops = &ab8500_usb_phy_ops, +}; |