It is confusing to have both "$(PHASE_)" and "$(XPL_)" be used in our
Makefiles as part of the macros to determine when to do something in our
Makefiles based on what phase of the build we are in. For consistency,
bring this down to a single macro and use "$(PHASE_)" only.

Signed-off-by: Tom Rini <trini@konsulko.com>

Add Starfive cdns USB3 wrapper driver.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Tested-by: E Shattow <lucent@gmail.com>

Use XPL_ as the symbol to indicate an SPL build. This means that SPL_ is
no-longer set.

Signed-off-by: Simon Glass <sjg@chromium.org>

Add driver to handle TI specific wrapper for Cadence USB3 controller
present on J721e SoC. Based on Linux driver for the same.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

Add support for USB3 host and gadget driver. This is a direct sync of
Linux kernel Cadence USB stack that from v5.4-rc1 release.
Driver has been modified so that it compiles without errors against
U-Boot code base.
Features not required for U-Boot such as scatter-gather DMA and OTG
interrupt handling has been dropped.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
[jjhiblot@ti.com: Add PHY support]
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>