The HSCIF variant present on Renesas R-Car Gen5 SoC is compatible
with the HSCIF variant present on Renesas R-Car Gen4 SoC. Enable
HSSRR register programming for HSCIF present on all 64-bit R-Car
SoCs, which covers R-Car Gen3, Gen4 and newly also Gen5.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

The definition of our ID table (and of_to_plat function) is guarded with
OF_REAL however the U_BOOT_DRIVER that would in turn use the table is
guarded with SERIAL_PRESENT. To avoid a potential warning we must also
guard both with SERIAL_PRESENT.

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

The definition of our ID table is guarded with OF_REAL however the
U_BOOT_DRIVER that would in turn use the table is guarded with
SERIAL_PRESENT. To avoid a potential warning we must also guard the
ID table with SERIAL_PRESENT.

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

There are no longer any users of the legacy non-DM pl01x serial driver.
This lets us remove both CONFIG_PL011_SERIAL as well as
CONFIG_PL011_SERIAL_RLCR references. We still have SPL users of the
non-DM portions of the code.

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

Pre-relocation we may not have a clock but it's usually been enabled for
us already, or worst case we will enable it after relocation. Erroring
out in this case will almost always cause U-Boot to hang pre-relocation
which is undesirable and may be hard to debug.

Link: https://patch.msgid.link/20260320-casey-qcom-rpmh-serial-fixes-v1-1-b81d05832eec@linaro.org
Signed-off-by: Casey Connolly <casey.connolly@linaro.org>

Fix compiler warning:

drivers/serial/ns16550.c: In function ‘serial_in_dynamic’:
drivers/serial/ns16550.c:153:1: warning: control reaches end
    of non-void function [-Wreturn-type]
  153 | }
      | ^

Observed with gcc 15.2.1:

$ riscv64-unknown-linux-gnu-gcc --version
riscv64-unknown-linux-gnu-gcc (Gentoo 15.2.1_p20260214 p5) 15.2.1

Fixes: 62cbde4c4e46 ("serial: ns16550: Support run-time configuration")
Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>
Reviewed-by: Tom Rini <trini@konsulko.com>

Prepare v2026.04-rc4

After years of developing the ADI ADSP platform, Timesys was purchased
by another company and is no longer contracted to maintain the platform.

Signed-off-by: Philip Molloy <philip.molloy@analog.com>
Reviewed-by: Greg Malysa <malysagreg@gmail.com>

Peng Fan (OSS) <peng.fan@oss.nxp.com> says:

This patch set primarily removes unused DECLARE_GLOBAL_DATA_PTR
instances.

Many files declare DECLARE_GLOBAL_DATA_PTR and include
asm/global_data.h even though gd is never used. In these cases,
asm/global_data.h is effectively treated as a proxy header, which is
not a good practice.

Following the Include What You Use principle, files should include
only the headers they actually depend on, rather than relying on
global_data.h indirectly. This approach is also adopted in Linux kernel
[1].

The first few patches are prepartion to avoid building break after
remove the including of global_data.h.

A script is for filtering the files:
list=`find . -name "*.[ch]"`
for source in ${list}
do
        result=`sed -n '/DECLARE_GLOBAL_DATA_PTR/p' ${source}`
        if [ "${result}" == "DECLARE_GLOBAL_DATA_PTR;" ]; then
                echo "Found in ${source}"

                result=`sed -n '/\<gd\>/p' ${source}`
                result2=`sed -n '/\<gd_/p' ${source}`
                result3=`sed -n '/\<gd->/p' ${source}`
                if [ "${result}" == "" ] && [ "${result2}" == "" ] && [ "${result3}" == "" ];then
                        echo "Cleanup ${source}"
                        sed -i '/DECLARE_GLOBAL_DATA_PTR/{N;/\n[[:space:]]*$/d;s/.*\n//;}' ${source}
                        sed -i '/DECLARE_GLOBAL_DATA_PTR/d' ${source}
                        sed -i '/global_data.h/d' ${source}
                        git add ${source}
                fi
        fi
done

[1] https://lpc.events/event/17/contributions/1620/attachments/1228/2520/Linux%20Kernel%20Header%20Optimization.pdf

CI: https://github.com/u-boot/u-boot/pull/865

Link: https://lore.kernel.org/r/20260209-cleanup-v2-0-73a3a84ddbdb@nxp.com