diff options
| -rw-r--r-- | Documentation/devicetree/bindings/phy/no-op.txt | 16 | ||||
| -rw-r--r-- | drivers/phy/Kconfig | 18 | ||||
| -rw-r--r-- | drivers/phy/Makefile | 1 | ||||
| -rw-r--r-- | drivers/phy/nop-phy.c | 26 |
4 files changed, 61 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/no-op.txt b/Documentation/devicetree/bindings/phy/no-op.txt new file mode 100644 index 0000000000..a3381122e6 --- /dev/null +++ b/Documentation/devicetree/bindings/phy/no-op.txt @@ -0,0 +1,16 @@ +NOP PHY driver + +This driver is used to stub PHY operations in a driver (USB, SATA). +This is useful when the 'client' driver (USB, SATA, ...) uses the PHY framework +and there is no actual PHY harwdare to drive. + +Required properties: +- compatible : must contain "nop-phy" +- #phy-cells : must contain <0> + +Example: + +nop_phy { + compatible = "nop-phy"; + #phy-cells = <0>; +}; diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index 7841554d09..98f2a1b047 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -41,6 +41,24 @@ config PHY_SANDBOX This select a dummy sandbox PHY driver. It used only to implement the unit tests for the phy framework +config NOP_PHY + bool "NOP PHY driver" + depends on PHY + help + Support for a no-op PHY driver (stubbed PHY driver). + + This is useful when a driver uses the PHY framework but no real PHY + hardware exists. + +config SPL_NOP_PHY + bool "NOP PHY driver in SPL" + depends on SPL_PHY + help + Support for a no-op PHY driver (stubbed PHY driver) in the SPL. + + This is useful when a driver uses the PHY framework but no real PHY + hardware exists. + config PIPE3_PHY bool "Support omap's PIPE3 PHY" depends on PHY && ARCH_OMAP2PLUS diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile index 6ce96d2ccc..ab56c46bb4 100644 --- a/drivers/phy/Makefile +++ b/drivers/phy/Makefile @@ -6,5 +6,6 @@ # obj-$(CONFIG_$(SPL_)PHY) += phy-uclass.o +obj-$(CONFIG_$(SPL_)NOP_PHY) += nop-phy.o obj-$(CONFIG_PHY_SANDBOX) += sandbox-phy.o obj-$(CONFIG_$(SPL_)PIPE3_PHY) += ti-pipe3-phy.o diff --git a/drivers/phy/nop-phy.c b/drivers/phy/nop-phy.c new file mode 100644 index 0000000000..2201cc35bf --- /dev/null +++ b/drivers/phy/nop-phy.c @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/ + * Written by Jean-Jacques Hiblot <jjhiblot@ti.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <dm.h> +#include <dm/device.h> +#include <generic-phy.h> + +static const struct udevice_id nop_phy_ids[] = { + { .compatible = "nop-phy" }, + { } +}; + +static struct phy_ops nop_phy_ops = { +}; + +U_BOOT_DRIVER(nop_phy) = { + .name = "nop_phy", + .id = UCLASS_PHY, + .of_match = nop_phy_ids, + .ops = &nop_phy_ops, +}; |