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[PATCH v3 0/5] arm64: Initial Realtek RTD1295 enablement

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  [PATCH v3 0/5] arm64: Initial Realtek RTD1295 enablement Andreas Färber <afaerber@suse.de> - 2017-05-14 04:30 +0200
    [PATCH v3 1/5] dt-bindings: Add vendor prefix for Zidoo Andreas Färber <afaerber@suse.de> - 2017-05-14 04:30 +0200
    [PATCH v3 2/5] dt-bindings: arm: Add Realtek RTD1295 bindings Andreas Färber <afaerber@suse.de> - 2017-05-14 04:30 +0200
    [PATCH v3 5/5] MAINTAINERS: Add Realtek section Andreas Färber <afaerber@suse.de> - 2017-05-14 04:30 +0200

#1641046 — [PATCH v3 0/5] arm64: Initial Realtek RTD1295 enablement

Hello,

This mini-series adds initial support for the Realtek RTD1295 SoC and
the Zidoo X9S TV box.

v3 changes #address-cells, #size-cells and ranges.

With these patches CPU0 can be booted with earlycon.

PSCI doesn't work despite present in the vendor device tree; as enable-method
it instead used a custom "rtk-spin-table" that I sadly have no source code of.

The UARTs use a custom interrupt controller that I again lack source code of;
with interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH> it can boot into an initrd.

The boot process is slightly twisted: The files need to be loaded from a
32-bit U-Boot, then boot into 64-bit U-Boot where the kernel can be booted.
Similar to my previous Amlogic S905 work, the TEXT_OFFSET poses a problem, so
a uImage needs to be used (or the kernel patched) for load address 0x00280000.
I haven't succeeded loading an initrd via bootm/booti; but as quick workaround
initrd=$rootfs_loadaddr,0x$filesize can manually be specified in $bootargs.

Cf. https://en.opensuse.org/HCL:Zidoo_X9S

More experimental patches at:
https://github.com/afaerber/linux/commits/rtd1295-next

Have a lot of fun!

Cheers,
Andreas

v2 -> v3:
* DT cleanups (Rob)
* Drop arm@kernel.org again (Olof)

v1 -> v2:
* Add Acked-bys
* Tweak DT subjects
* Reword DT bindings
* Drop one memreserve
* Add MAINTAINERS patch

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Roc He <hepeng@zidoo.tv>
Cc: devicetree@vger.kernel.org

Andreas Färber (5):
  dt-bindings: Add vendor prefix for Zidoo
  dt-bindings: arm: Add Realtek RTD1295 bindings
  ARM64: Prepare Realtek RTD1295
  ARM64: dts: Add Realtek RTD1295 and Zidoo X9S
  MAINTAINERS: Add Realtek section

 Documentation/devicetree/bindings/arm/realtek.txt  |  20 ++++
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 MAINTAINERS                                        |   7 ++
 arch/arm64/Kconfig.platforms                       |   6 +
 arch/arm64/boot/dts/Makefile                       |   1 +
 arch/arm64/boot/dts/realtek/Makefile               |   5 +
 arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts  |  42 +++++++
 arch/arm64/boot/dts/realtek/rtd1295.dtsi           | 131 +++++++++++++++++++++
 8 files changed, 213 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/realtek.txt
 create mode 100644 arch/arm64/boot/dts/realtek/Makefile
 create mode 100644 arch/arm64/boot/dts/realtek/rtd1295-zidoo-x9s.dts
 create mode 100644 arch/arm64/boot/dts/realtek/rtd1295.dtsi

-- 
2.12.0

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#1641047 — [PATCH v3 1/5] dt-bindings: Add vendor prefix for Zidoo

Zidoo is a Chinese manufacturer of TV boxes.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Roc He <hepeng@zidoo.tv>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v2 -> v3: unchanged
 
 v1 -> v2:
 * Changed subject
 * Extended commit message
 
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index c03d20140366..f032fa69f9d1 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -356,6 +356,7 @@ xlnx	Xilinx
 xunlong	Shenzhen Xunlong Software CO.,Limited
 zarlink	Zarlink Semiconductor
 zeitec	ZEITEC Semiconductor Co., LTD.
+zidoo	Shenzhen Zidoo Technology Co., Ltd.
 zii	Zodiac Inflight Innovations
 zte	ZTE Corp.
 zyxel	ZyXEL Communications Corp.
-- 
2.12.0

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#1641048 — [PATCH v3 2/5] dt-bindings: arm: Add Realtek RTD1295 bindings

The Zidoo X9S and a few other recent TV boxes feature the Realtek RTD1295,
a quad-core ARM Cortex-A53 SoC.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Roc He <hepeng@zidoo.tv>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v2 -> v3: unchanged
 
 v1 -> v2:
 * Changed subject
 * Extended commit message
 * Clarified wording
 
 Documentation/devicetree/bindings/arm/realtek.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/realtek.txt

diff --git a/Documentation/devicetree/bindings/arm/realtek.txt b/Documentation/devicetree/bindings/arm/realtek.txt
new file mode 100644
index 000000000000..13d755787b4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/realtek.txt
@@ -0,0 +1,20 @@
+Realtek platforms device tree bindings
+--------------------------------------
+
+
+RTD1295 SoC
+===========
+
+Required root node properties:
+
+ - compatible :  must contain "realtek,rtd1295"
+
+
+Root node property compatible must contain, depending on board:
+
+ - Zidoo X9S: "zidoo,x9s"
+
+
+Example:
+
+    compatible = "zidoo,x9s", "realtek,rtd1295";
-- 
2.12.0

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#1641049 — [PATCH v3 5/5] MAINTAINERS: Add Realtek section

Add myself as maintainer.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 v2 -> v3:
 * Changed status to Maintained
 
 v2: new
 
 MAINTAINERS | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 5ae4f7975b19..92c65bbc4ef3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1678,6 +1678,13 @@ M:	Lennert Buytenhek <kernel@wantstofly.org>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 
+ARM/REALTEK ARCHITECTURE
+M:	Andreas Färber <afaerber@suse.de>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+S:	Maintained
+F:	arch/arm64/boot/dts/realtek/
+F:	Documentation/devicetree/bindings/arm/realtek.txt
+
 ARM/RENESAS ARM64 ARCHITECTURE
 M:	Simon Horman <horms@verge.net.au>
 M:	Magnus Damm <magnus.damm@gmail.com>
-- 
2.12.0

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