When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

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

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

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

This converts the following to Kconfig:
   CONFIG_SPI

This partly involves updating code that assumes that CONFIG_SPI implies
things that are specific to the MPC8xx SPI driver.  For now, just update
the CONFIG tests.  This also involves reworking the default for
CONFIG_SYS_DEF_EEPROM_ADDR so that we don't set it when we cannot make a
reasonable default, as it does not cause any compile failures.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>

After this change the DM FEC ETH driver can be also reused on some imx53
devices.

Signed-off-by: Lukasz Majewski <lukma@denx.de>

Without this commit we do have an explicit dependency on CONFIG_PHYLIB
when one wants to set PHY ADDR on a iMX board (FEC + driver model).

This shall be changed to CONFIG_FEC_MXC_PHYADDR, as only when we do have
it set, we shall mask out other devices.

As a side effect, when CONFIG_FEC_MXC_PHYADDR is not set, we scan PHY bus
for connected PHY devices.

Signed-off-by: Lukasz Majewski <lukma@denx.de>

Some boards expect to find more than one phy while other boards are old
and need to be limited to a specific phy address. Only limit the phy
address for boards that opt in.

Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>

Add compatible strings for R8A7790, R8A7793 and R8A7794, since the
contemporary DTs use those don't have a generic match value.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

Add support to use max-speed property from dt for
determining the supported speed. Use 1000Mbps as
default.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

Since the probe function has changed to reset FEC controller prior than
setup PHY. If reset FEC controller timeout, the priv->phydev is not
initialized, so can't free it.

Signed-off-by: Ye Li <ye.li@nxp.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>