Remove DECLARE_GLOBAL_DATA_PTR from files where gd is not used, and
drop the unnecessary inclusion of asm/global_data.h.

Headers should be included directly by the files that need them,
rather than indirectly via global_data.h.

Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com> #STMicroelectronics boards and STM32MP1 ram test driver
Tested-by: Anshul Dalal <anshuld@ti.com> #TI boards
Acked-by: Yao Zi <me@ziyao.cc> #TH1520
Signed-off-by: Peng Fan <peng.fan@nxp.com>

Currently, the bind callback of the driver namely am65_cpsw_nuss_bind()
registers all ethernet ports including the ones that have been disabled
in the device-tree. Since the ports that have been disabled are ought to
be ignored, fix the implementation to register only the enabled ports as
indicated by their 'status' in their respective device-tree node.

Fixes: 3943531a5468 ("net: ti: am65-cpsw-nuss: Define bind method for CPSW driver")
Reported-by: Wadim Egorov <w.egorov@phytec.de>
Closes: https://patch.msgid.link/8b4ac072-125c-493b-b12a-f0a4e9d56e7e@phytec.de
Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>

The am65-cpsw driver currently sets the SEL_RGMII_IDMODE flag in a MAC's
mode register to enable or disable the TX delay. While this was supported
for earlier generations of the CPSW controller, the datasheets of all
modern TI SoCs using the am65-cpsw MAC state that the TX delay is fixed,
and the SEL_RGMII_IDMODE bit is documented as reserved in most of them.
Furthermore, while it was found that this bit does in fact disable the TX
delay, [1] states that this setting is truly unsupported by TI and not
just undocumented.

Following the clarification of the rgmii* phy-mode values in the Linux
DT bindings in [2], the Linux am65-cpsw driver was changed in [3] to
account for the fixed TX delay by fixing up the mode passed to the PHY
driver; a similar fixup already existed in the TI icssg-prueth driver.
[4] followed up on this by explicitly clearing the SEL_RGMII_IDMODE flag
to handle the case where it is set by the bootloader or other firmware
before Linux.

With the above changes, Device Trees that set the recommended "rgmii-id"
mode are now appearing in Linux 6.17+. Avoid setting the unsupported
SEL_RGMII_IDMODE flag for such Device Trees, and instead fix up the PHY
interface mode, thus aligning the U-Boot driver with the Linux kernel.

[1] https://www.spinics.net/lists/netdev/msg1112647.html
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c360eb0c3ccb95306704fd221442283ee82f1f58
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ca13b249f291f4920466638d1adbfb3f9c8db6e9
[4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a22d3b0d49d411e64ed07e30c2095035ecb30ed2

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>

Chintan Vankar <c-vankar@ti.com> says:

This series adds bind method for CPSW to avoid explicit probing, removes
explicit probing of CPSW, adds support for Ethernet boot on SK-AM68,
SK-AM62P-LP, J722S, SK-AM69.

Link: https://lore.kernel.org/r/20250731075956.605474-1-c-vankar@ti.com

TI's Ethernet switch needs system controllers enabled in R5SPL stage while
booting via Ethernet. Enable SPL_SYSCON config for
CONFIG_TI_AM65_CPSW_NUSS.

Reviewed-by: Alexander Sverdlin <alexander.sverdlin@siemens.com>
Signed-off-by: Chintan Vankar <c-vankar@ti.com>

CPSW driver is defined as UCLASS_MISC driver which needs to be probed
explicitly. Define bind method for CPSW driver to scan and bind
ethernet-ports with UCLASS_ETH driver which will eventually probe CPSW
driver and avoid probing CPSW driver explicitly.

Signed-off-by: Chintan Vankar <c-vankar@ti.com>

port_id is an unsigned variable so cannot be negative. Remove the test
checking for port_id being less than 0.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

In am65_cpsw_phy_init it is not certain that ret will be assigned to
before it reaches the 'return ret' statement. Initialise ret to ensure
that ret is valid.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>

A large number of network drivers cannot build without access to some
platform specific header files. Express those requirements in Kconfig as
well. This covers the QUICC engine drivers as that is networking
driver infrastructure.

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

Update the ICSSG PRU Ethernet driver to read PRU/RTU/TXPRU firmware names
from the Device Tree using the "firmware-name" property, instead of relying
on the hard-coded firmware names. The firmware names are parsed during
prueth_probe() and stored in the prueth->firmwares for each slice. The
driver now uses these dynamically loaded names when starting the PRU cores.

This change improves flexibility and allows firmware selection to be
controlled via the device tree, making the driver more adaptable to
different platforms and firmware configurations.

Signed-off-by: MD Danish Anwar <danishanwar@ti.com>