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, 117 insertions, 0 deletions

diff --git a/target/linux/oxnas/patches-4.14/0003-ARM-configs-add-OXNAS-v6-defconfig.patch b/target/linux/oxnas/patches-4.14/0003-ARM-configs-add-OXNAS-v6-defconfig.patch
new file mode 100644
index 0000000000..bc4bc369da
--- /dev/null
+++ b/target/linux/oxnas/patches-4.14/0003-ARM-configs-add-OXNAS-v6-defconfig.patch
@@ -0,0 +1,117 @@
+From 22c1774af921a1cdb33bd37b44977b5b34ea58d0 Mon Sep 17 00:00:00 2001
+From: Neil Armstrong <narmstrong@baylibre.com>
+Date: Wed, 14 Mar 2018 09:35:44 +0100
+Subject: [PATCH 3/3] ARM: configs: add OXNAS v6 defconfig
+
+This patchs adds the minimal defconfig for the OXNAS ARMv6 SoCs
+including the OX820 SoC and needed minimal configurations.
+
+Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
+Signed-off-by: Arnd Bergmann <arnd@arndb.de>
+---
+ arch/arm/configs/oxnas_v6_defconfig | 93 +++++++++++++++++++++++++++++
+ 1 file changed, 93 insertions(+)
+ create mode 100644 arch/arm/configs/oxnas_v6_defconfig
+
+diff --git a/arch/arm/configs/oxnas_v6_defconfig b/arch/arm/configs/oxnas_v6_defconfig
+new file mode 100644
+index 000000000000..f6ba32c9d173
+--- /dev/null
++++ b/arch/arm/configs/oxnas_v6_defconfig
+@@ -0,0 +1,93 @@
++CONFIG_SYSVIPC=y
++CONFIG_NO_HZ=y
++CONFIG_HIGH_RES_TIMERS=y
++CONFIG_CGROUPS=y
++CONFIG_BLK_DEV_INITRD=y
++CONFIG_EMBEDDED=y
++CONFIG_PERF_EVENTS=y
++CONFIG_STRICT_KERNEL_RWX=y
++CONFIG_STRICT_MODULE_RWX=y
++CONFIG_MODULES=y
++CONFIG_MODULE_UNLOAD=y
++CONFIG_PARTITION_ADVANCED=y
++CONFIG_CMDLINE_PARTITION=y
++CONFIG_ARCH_MULTI_V6=y
++CONFIG_ARCH_OXNAS=y
++CONFIG_MACH_OX820=y
++CONFIG_SMP=y
++CONFIG_NR_CPUS=16
++CONFIG_CMA=y
++CONFIG_FORCE_MAX_ZONEORDER=12
++CONFIG_SECCOMP=y
++CONFIG_ARM_APPENDED_DTB=y
++CONFIG_ARM_ATAG_DTB_COMPAT=y
++CONFIG_KEXEC=y
++CONFIG_EFI=y
++CONFIG_CPU_IDLE=y
++CONFIG_ARM_CPUIDLE=y
++CONFIG_VFP=y
++CONFIG_NET=y
++CONFIG_PACKET=y
++CONFIG_UNIX=y
++CONFIG_INET=y
++CONFIG_IP_PNP=y
++CONFIG_IP_PNP_DHCP=y
++CONFIG_IP_PNP_BOOTP=y
++CONFIG_IP_PNP_RARP=y
++CONFIG_IPV6_ROUTER_PREF=y
++CONFIG_IPV6_OPTIMISTIC_DAD=y
++CONFIG_INET6_AH=m
++CONFIG_INET6_ESP=m
++CONFIG_INET6_IPCOMP=m
++CONFIG_IPV6_MIP6=m
++CONFIG_IPV6_TUNNEL=m
++CONFIG_IPV6_MULTIPLE_TABLES=y
++CONFIG_DEVTMPFS=y
++CONFIG_DEVTMPFS_MOUNT=y
++CONFIG_DMA_CMA=y
++CONFIG_CMA_SIZE_MBYTES=64
++CONFIG_SIMPLE_PM_BUS=y
++CONFIG_MTD=y
++CONFIG_MTD_CMDLINE_PARTS=y
++CONFIG_MTD_BLOCK=y
++CONFIG_MTD_NAND=y
++CONFIG_MTD_NAND_OXNAS=y
++CONFIG_MTD_UBI=y
++CONFIG_BLK_DEV_LOOP=y
++CONFIG_BLK_DEV_RAM=y
++CONFIG_BLK_DEV_RAM_SIZE=65536
++CONFIG_NETDEVICES=y
++CONFIG_STMMAC_ETH=y
++CONFIG_REALTEK_PHY=y
++CONFIG_INPUT_EVDEV=y
++CONFIG_SERIAL_8250=y
++CONFIG_SERIAL_8250_CONSOLE=y
++CONFIG_SERIAL_OF_PLATFORM=y
++CONFIG_GPIO_GENERIC_PLATFORM=y
++CONFIG_NEW_LEDS=y
++CONFIG_LEDS_CLASS=y
++CONFIG_LEDS_CLASS_FLASH=m
++CONFIG_LEDS_GPIO=y
++CONFIG_LEDS_TRIGGERS=y
++CONFIG_LEDS_TRIGGER_TIMER=y
++CONFIG_LEDS_TRIGGER_ONESHOT=y
++CONFIG_LEDS_TRIGGER_HEARTBEAT=y
++CONFIG_LEDS_TRIGGER_CPU=y
++CONFIG_LEDS_TRIGGER_GPIO=y
++CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
++CONFIG_ARM_TIMER_SP804=y
++CONFIG_EXT4_FS=y
++CONFIG_MSDOS_FS=y
++CONFIG_VFAT_FS=y
++CONFIG_TMPFS=y
++CONFIG_TMPFS_POSIX_ACL=y
++CONFIG_UBIFS_FS=y
++CONFIG_PSTORE=y
++CONFIG_PSTORE_CONSOLE=y
++CONFIG_PSTORE_PMSG=y
++CONFIG_PSTORE_RAM=y
++CONFIG_NLS_CODEPAGE_437=y
++CONFIG_NLS_ISO8859_1=y
++CONFIG_NLS_UTF8=y
++CONFIG_PRINTK_TIME=y
++CONFIG_MAGIC_SYSRQ=y
+-- 
+2.17.1
+