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>

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

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, atmel-usart does not respect CONFIG_DEBUG_UART_SKIP_INIT so
it will always configure the debug UART.

However, this is unwanted on platforms on which TF-A or some other firmware
has already configured the debug UART.

This will be used for Microchip LAN969x support, so simply return early if
CONFIG_DEBUG_UART_SKIP_INIT is set.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

Microchip LAN969x will not include any arch specific clk.h nor hardware.h,
so in order to support it only include <asm/arch/clk.h> and
<asm/arch/hardware.h> when AT91 is selected.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

Move the arch specific atmel_serial.h header from AT91 to the generic
include/dm/platform_data.

This will be used for support on Microchip LAN969x.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>

Add support for the Google Goldfish TTY serial device. This virtual
device is commonly used in QEMU virtual machines (such as the m68k
virt machine) and Android emulators.

The driver implements basic console output and input polling using the
Goldfish MMIO interface.

Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Yao Zi <me@ziyao.cc>
Tested-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Simon Glass <simon.glass@canonical.com>
Acked-by: Angelo Dureghello <angelo@kernel-space.org>