phy: Add support for the Apple Type-C PHY

This is merely a dummy driver that makes sure the DWC3 XHCI driver
finds its reset and PHY controllers.  We rely on iBoot to set up
the PHY for us.

Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
This commit is contained in:
Mark Kettenis 2023-07-14 22:21:42 +02:00 committed by Tom Rini
parent 815ce125a4
commit b99c635787
6 changed files with 70 additions and 0 deletions

View file

@ -123,6 +123,7 @@ F: configs/apple_m1_defconfig
F: drivers/iommu/apple_dart.c
F: drivers/nvme/nvme_apple.c
F: drivers/pci/pcie_apple.c
F: drivers/phy/phy-apple-atc.c
F: drivers/pinctrl/pinctrl-apple.c
F: drivers/watchdog/apple_wdt.c
F: include/configs/apple.h

View file

@ -998,6 +998,7 @@ config ARCH_APPLE
select OF_BOARD_SETUP
select OF_CONTROL
select PCI
select PHY
select PINCTRL
select POSITION_INDEPENDENT
select POWER_DOMAIN

View file

@ -16,6 +16,7 @@ CONFIG_NVME_APPLE=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_XHCI_PCI=y
CONFIG_USB_DWC3=y
CONFIG_USB_KEYBOARD=y
CONFIG_SYS_WHITE_ON_BLACK=y
CONFIG_NO_FB_CLEAR=y

View file

@ -70,6 +70,16 @@ config AB8500_USB_PHY
help
Support for the USB OTG PHY in ST-Ericsson AB8500.
config APPLE_ATCPHY
bool "Apple Type-C PHY Driver"
depends on PHY && ARCH_APPLE
default y
help
Support for the Apple Type-C PHY.
This is a dummy driver since the PHY is initialized
sufficiently by previous stage firmware.
config BCM6318_USBH_PHY
bool "BCM6318 USBH PHY support"
depends on PHY && ARCH_BMIPS

View file

@ -12,6 +12,7 @@ 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-$(CONFIG_APPLE_ATCPHY) += phy-apple-atc.o
obj-$(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

View file

@ -0,0 +1,56 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2022 Mark Kettenis <kettenis@openbsd.org>
*/
#include <common.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <generic-phy.h>
#include <reset-uclass.h>
static const struct phy_ops apple_atcphy_ops = {
};
static struct driver apple_atcphy_driver = {
.name = "apple-atcphy",
.id = UCLASS_PHY,
.ops = &apple_atcphy_ops,
};
static int apple_atcphy_reset_of_xlate(struct reset_ctl *reset_ctl,
struct ofnode_phandle_args *args)
{
if (args->args_count != 0)
return -EINVAL;
return 0;
}
static const struct reset_ops apple_atcphy_reset_ops = {
.of_xlate = apple_atcphy_reset_of_xlate,
};
static int apple_atcphy_reset_probe(struct udevice *dev)
{
struct udevice *child;
device_bind(dev, &apple_atcphy_driver, "apple-atcphy", NULL,
dev_ofnode(dev), &child);
return 0;
}
static const struct udevice_id apple_atcphy_ids[] = {
{ .compatible = "apple,t6000-atcphy" },
{ .compatible = "apple,t8103-atcphy" },
{ }
};
U_BOOT_DRIVER(apple_atcphy_reset) = {
.name = "apple-atcphy-reset",
.id = UCLASS_RESET,
.of_match = apple_atcphy_ids,
.ops = &apple_atcphy_reset_ops,
.probe = apple_atcphy_reset_probe,
};