oxnas: reboot target

Reboot the oxnas target based on Linux 4.14 by rebasing our support on
top of the now-existing upstream kernel support.
This commit brings oxnas support to the level of v4.17 having upstream
drivers for Ethernet, Serial and NAND flash.
Botch up OpenWrt's local drivers for EHCI, SATA and PCIe based on the
new platform code and device-tree.
Re-introduce base-files from old oxnas target which works for now but
needs further clean-up towards generic board support.

Functional issues:
 * PCIe won't come up (hence no USB3 on Shuttle KD20)
 * I2C bus of Akitio myCloud device is likely not to work (missing
   debounce support in new pinctrl driver)

Code-style issues:
 * plla/pllb needs further cleanup -- currently their users are writing
   into the syscon regmap after acquireling the clk instead of using
   defined clk_*_*() functions to setup multipliers and dividors.
 * PCIe phy needs its own little driver.
 * SATA driver is a monster and should be split into an mfd having
   a raidctrl regmap, sata controller, sata ports and sata phy.

Tested on MitraStar STG-212 aka. Medion Akoya MD86xxx and Shuttle KD20.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(squash-picked commit 17511a7ea8 and commit dcc34574ef from master)

1 files changed, 48 insertions, 0 deletions

diff --git a/target/linux/oxnas/patches-4.14/0001-ARM-dts-rename-oxnas-dts-files.patch b/target/linux/oxnas/patches-4.14/0001-ARM-dts-rename-oxnas-dts-files.patch
new file mode 100644
index 0000000000..20289b3903
--- /dev/null
+++ b/target/linux/oxnas/patches-4.14/0001-ARM-dts-rename-oxnas-dts-files.patch
@@ -0,0 +1,48 @@
+From a9d2b105ccd23e07e3dd99d010a34bd5d1c95b42 Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sat, 13 Jan 2018 18:35:59 +0100
+Subject: [PATCH 1/3] ARM: dts: rename oxnas dts files
+
+Other platforms' device-tree files start with a platform prefix, such as
+sun7i-a20-*.dts or at91-*.dts.
+This naming scheme turns out to be handy when using multi-platform build
+systems such as OpenWrt.
+Prepend oxnas files with their platform prefix to comply with the naming
+scheme already used for most other platforms.
+
+Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+---
+ arch/arm/boot/dts/Makefile                                    | 4 ++--
+ arch/arm/boot/dts/{wd-mbwe.dts => ox810se-wd-mbwe.dts}        | 0
+ ...-series-3.dts => ox820-cloudengines-pogoplug-series-3.dts} | 0
+ 3 files changed, 2 insertions(+), 2 deletions(-)
+ rename arch/arm/boot/dts/{wd-mbwe.dts => ox810se-wd-mbwe.dts} (100%)
+ rename arch/arm/boot/dts/{cloudengines-pogoplug-series-3.dts => ox820-cloudengines-pogoplug-series-3.dts} (100%)
+
+diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
+index eff87a344566..1ae23ffa6ff4 100644
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -685,8 +685,8 @@ dtb-$(CONFIG_ARCH_ACTIONS) += \
+ dtb-$(CONFIG_ARCH_PRIMA2) += \
+ 	prima2-evb.dtb
+ dtb-$(CONFIG_ARCH_OXNAS) += \
+-	wd-mbwe.dtb \
+-	cloudengines-pogoplug-series-3.dtb
++	ox810se-wd-mbwe.dtb \
++	ox820-cloudengines-pogoplug-series-3.dtb
+ dtb-$(CONFIG_ARCH_QCOM) += \
+ 	qcom-apq8060-dragonboard.dtb \
+ 	qcom-apq8064-arrow-sd-600eval.dtb \
+diff --git a/arch/arm/boot/dts/wd-mbwe.dts b/arch/arm/boot/dts/ox810se-wd-mbwe.dts
+similarity index 100%
+rename from arch/arm/boot/dts/wd-mbwe.dts
+rename to arch/arm/boot/dts/ox810se-wd-mbwe.dts
+diff --git a/arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts b/arch/arm/boot/dts/ox820-cloudengines-pogoplug-series-3.dts
+similarity index 100%
+rename from arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
+rename to arch/arm/boot/dts/ox820-cloudengines-pogoplug-series-3.dts
+-- 
+2.17.1
+