arm64: dts: realtek: rtd1295: Add Xnano X5

The Xnano X5 is an OTT TV Box.

Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: Add RTD1619 SoC and Realtek Mjolnir EVB

Add Device Trees for Realtek RTD1619 SoC family, RTD1619 SoC and
Realtek Mjolnir EVB.

Signed-off-by: James Tai <james.tai@realtek.com>
[AF: Renamed r-bus node, modified UART comments, style cleanups]
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: rtd1395: Add Realtek Lion Skin EVB

Add a Device Tree for Realtek RTD1395 SoC Lion Skin evaluation board.

Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: Add RTD1395 and BPi-M4

Add Device Trees for Realtek RTD1395 SoC and Banana Pi BPi-M4 SBC.

For now reuse RTD1295 reset constants.

Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: Add RTD1296 and Synology DS418

Add Device Trees for RTD1296 SoC and Synology DiskStation DS418.

Cc: info@synology.com
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: Add RTD1293 and Synology DS418j

Add Device Trees for RTD1293 SoC and Synology DiskStation DS418j NAS.

Cc: info@synology.com
Signed-off-by: Andreas Färber <afaerber@suse.de>

treewide: Add SPDX license identifier - Makefile/Kconfig

Add SPDX license identifiers to all Make/Kconfig files which:

- Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

kbuild: handle dtb-y and CONFIG_OF_ALL_DTBS natively in Makefile.lib

If CONFIG_OF_ALL_DTBS is enabled, "make ARCH=arm64 dtbs" compiles each
DTB twice; one from arch/arm64/boot/dts/*/Makefile and the other from
the dtb-$(CONFIG_OF_ALL_DTBS) line in arch/arm64/boot/dts/Makefile.
It could be a race problem when building DTBS in parallel.

Another minor issue is CONFIG_OF_ALL_DTBS covers only *.dts in vendor
sub-directories, so this broke when Broadcom added one more hierarchy
in arch/arm64/boot/dts/broadcom/<soc>/.

One idea to fix the issues in a clean way is to move DTB handling
to Kbuild core scripts. Makefile.dtbinst already recognizes dtb-y
natively, so it should not hurt to do so.

Add $(dtb-y) to extra-y, and $(dtb-) as well if CONFIG_OF_ALL_DTBS is
enabled. All clutter things in Makefiles go away.

As a bonus clean-up, I also removed dts-dirs. Just use subdir-y
directly to traverse sub-directories.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
[robh: corrected BUILTIN_DTB to CONFIG_BUILTIN_DTB]
Signed-off-by: Rob Herring <robh@kernel.org>

kbuild: clean up *.dtb and *.dtb.S patterns from top-level Makefile

We need to add "clean-files" in Makfiles to clean up DT blobs, but we
often miss to do so.

Since there are no source files that end with .dtb or .dtb.S, so we
can clean-up those files from the top-level Makefile.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Herring <robh@kernel.org>

arm64: dts: realtek: Add MeLE V9

Add an initial Device Tree for MeLE V9 Media Player.

Cc: meleservice@mele.cn
Signed-off-by: Andreas Färber <afaerber@suse.de>

arm64: dts: realtek: Add ProBox2 Ava

Add a Device Tree for the PROBOX2 AVA TV Box.
Move common memory reservations into rtd1295.dtsi.

Cc: support@probox2.com
Signed-off-by: Andreas Färber <afaerber@suse.de>

ARM64: dts: Add Realtek RTD1295 and Zidoo X9S

Add initial device trees for the RTD1295 SoC and the Zidoo X9S TV box.

The CPUs lack the enable-method property because the vendor device tree
uses a custom "rtk-spin-table" method and "psci" did not appear to work.

The UARTs lack the interrupts properties because the vendor device tree
connects them to a custom interrupt controller. earlycon works without.

A list of memory reservations is adopted from v1.2.11 vendor device tree:
0x02200000 can be used for an initrd, 0x01b00000 is audio-related;
ion-related 0x02600000, 0x02c00000 and 0x11000000 are left out;
0x10000000 is used for sharing the U-Boot environment; others remain
to be investigated.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>