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, 39 insertions, 0 deletions

diff --git a/target/linux/oxnas/patches-4.14/0002-MAINTAINERS-update-ARM-OXNAS-platform-support-patter.patch b/target/linux/oxnas/patches-4.14/0002-MAINTAINERS-update-ARM-OXNAS-platform-support-patter.patch
new file mode 100644
index 0000000000..66dacabbd7
--- /dev/null
+++ b/target/linux/oxnas/patches-4.14/0002-MAINTAINERS-update-ARM-OXNAS-platform-support-patter.patch
@@ -0,0 +1,39 @@
+From a018141970d80677d2822fef9d391b85bf9cf99f Mon Sep 17 00:00:00 2001
+From: Joe Perches <joe@perches.com>
+Date: Tue, 6 Feb 2018 15:42:33 -0800
+Subject: [PATCH 2/3] MAINTAINERS: update "ARM/OXNAS platform support" patterns
+
+Commit 9e6c62b05c1b ("ARM: dts: rename oxnas dts files") renamed the
+files, update the patterns.
+
+[akpm@linux-foundation.org: crunch into a single globbed term, per Arnd]
+Link: http://lkml.kernel.org/r/b39d779e143b3c0a4e7dff827346e509447e3e8e.1517147485.git.joe@perches.com
+Signed-off-by: Joe Perches <joe@perches.com>
+Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
+Cc: Daniel Golle <daniel@makrotopia.org>
+Cc: Arnd Bergmann <arnd@arndb.de>
+Cc: Neil Armstrong <narmstrong@baylibre.com>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+---
+ MAINTAINERS | 4 +---
+ 1 file changed, 1 insertion(+), 3 deletions(-)
+
+diff --git a/MAINTAINERS b/MAINTAINERS
+index 546beb6b0176..6ecdaed0a3ef 100644
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -1677,9 +1677,7 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+ L:	linux-oxnas@lists.tuxfamily.org (moderated for non-subscribers)
+ S:	Maintained
+ F:	arch/arm/mach-oxnas/
+-F:	arch/arm/boot/dts/ox8*.dtsi
+-F:	arch/arm/boot/dts/wd-mbwe.dts
+-F:	arch/arm/boot/dts/cloudengines-pogoplug-series-3.dts
++F:	arch/arm/boot/dts/ox8*.dts*
+ N:	oxnas
+ 
+ ARM/PALM TREO SUPPORT
+-- 
+2.17.1
+