gemini: add 4.14 support

This adds the patches to get fairly complete Gemini support
using kernel v4.14. It is mainly a backport of patches from
kernel v4.16 with omissions of things like graphics that require
substantial changes and will be better handled once we move
to the v4.16 kernel proper.
On top of this are some WIP patches for USB support.

Tested on Raidsonic NAS4220B and D-link DNS-313.

ChangeLog v4->v5:
- Fix ethernet single gmac usecase
- Fix USB reset (patch from Hans)
- Fix Raidsonic ethernet skew delay
- Fix kernel config (bridge, squashfs, jffs2, usb)
- Disable second usb port on Raidsonic board until fotg210_hcd is fixed

ChangeLog v3->v4:
- Make sure to use tabs rather than spaces in base-files.
- Use the dns313 image tool from the firmware-utils.
- Break out the addition of the v4.14 patches and the removal
  of the v4.4 patches to separate (big) patches.

ChangeLog v2->v3:
- Update the kernel config as indicated by Hauke Martens:
- Regenerate again after rebasing using kernel_oldconfig
  dropping a few optimization settings that are now generic
- Drop CFG80211 stuff (module)
- Drop CIFS stuff (module)
- Drop MAC80211 (module)
- Drop wireless drivers (module)
- Enabled OverlayFS
- Added proper DNS-313 boot image generation with the special
  file header tool.
- Disable CMA in the kernel
- Enable LZMA compression of the kernel
- Consequently name the nas4220b images nas4220b
- Update preinit MAC detection script to handle also DNS-313
- Add board.d/03_hdparm to set the disk to spin down after
  1 minute by default, if we have the hdparm tool installed

ChangeLog v1->v2:
- Processed config through kernel_oldconfig
- Processed patches through make target/linux/{clean,refresh} V=99

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Roman Yeryomin <roman@advem.lv>

1 files changed, 272 insertions, 0 deletions

diff --git a/target/linux/gemini/patches-4.14/0013-ARM-dts-Add-basic-devicetree-for-D-Link-DNS-313.patch b/target/linux/gemini/patches-4.14/0013-ARM-dts-Add-basic-devicetree-for-D-Link-DNS-313.patch
new file mode 100644
index 0000000000..cdf25a9258
--- /dev/null
+++ b/target/linux/gemini/patches-4.14/0013-ARM-dts-Add-basic-devicetree-for-D-Link-DNS-313.patch
@@ -0,0 +1,272 @@
+From 2f08de94f207a4347053e1faa22c9a310c9c61b0 Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Fri, 17 Nov 2017 16:36:32 +0100
+Subject: [PATCH 13/31] ARM: dts: Add basic devicetree for D-Link DNS-313
+
+This adds a basic device tree for the D-Link DNS-313
+NAS enclosure. This device has a thermal sensor and a
+fan so we add a thermal zone for the chassis in the
+device tree based on information from the product.
+
+Reviewed-by: Andrew Lunn <andrew@lunn.ch>
+Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
+---
+ arch/arm/boot/dts/Makefile                 |   1 +
+ arch/arm/boot/dts/gemini-dlink-dns-313.dts | 241 +++++++++++++++++++++++++++++
+ 2 files changed, 242 insertions(+)
+ create mode 100644 arch/arm/boot/dts/gemini-dlink-dns-313.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -185,6 +185,7 @@ dtb-$(CONFIG_ARCH_EXYNOS5) += \
+ 	exynos5800-peach-pi.dtb
+ dtb-$(CONFIG_ARCH_GEMINI) += \
+ 	gemini-dlink-dir-685.dtb \
++	gemini-dlink-dns-313.dtb \
+ 	gemini-nas4220b.dtb \
+ 	gemini-rut1xx.dtb \
+ 	gemini-sq201.dtb \
+--- /dev/null
++++ b/arch/arm/boot/dts/gemini-dlink-dns-313.dts
+@@ -0,0 +1,241 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Device Tree file for D-Link DNS-313 1-Bay Network Storage Enclosure
++ */
++
++/dts-v1/;
++
++#include "gemini.dtsi"
++#include <dt-bindings/input/input.h>
++#include <dt-bindings/thermal/thermal.h>
++
++/ {
++	model = "D-Link DNS-313 1-Bay Network Storage Enclosure";
++	compatible = "dlink,dir-313", "cortina,gemini";
++	#address-cells = <1>;
++	#size-cells = <1>;
++
++	memory {
++		/* 64 MB SDRAM in a Nanya NT5DS32M16BS-6K package */
++		device_type = "memory";
++		reg = <0x00000000 0x4000000>;
++	};
++
++	aliases {
++		mdio-gpio0 = &mdio0;
++	};
++
++	chosen {
++		stdout-path = "uart0:19200n8";
++	};
++
++	gpio_keys {
++		compatible = "gpio-keys";
++		#address-cells = <1>;
++		#size-cells = <0>;
++		button-esc {
++			debounce_interval = <50>;
++			wakeup-source;
++			linux,code = <KEY_ESC>;
++			label = "reset";
++			gpios = <&gpio1 31 GPIO_ACTIVE_LOW>;
++		};
++	};
++
++	leds {
++		compatible = "gpio-leds";
++		led-power {
++			label = "dns313:blue:power";
++			gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
++			default-state = "on";
++			linux,default-trigger = "heartbeat";
++		};
++		led-disk-blue {
++			label = "dns313:blue:disk";
++			gpios = <&gpio0 2 GPIO_ACTIVE_HIGH>;
++			default-state = "off";
++		};
++		led-disk-green {
++			label = "dns313:green:disk";
++			gpios = <&gpio0 3 GPIO_ACTIVE_HIGH>;
++			default-state = "off";
++			linux,default-trigger = "ide-disk";
++			/* Ideally should activate while reading */
++		};
++		led-disk-red {
++			label = "dns313:red:disk";
++			gpios = <&gpio0 4 GPIO_ACTIVE_HIGH>;
++			default-state = "off";
++			/* Ideally should activate while writing */
++		};
++	};
++
++	/*
++	 * This is a ADDA AD0405GB-G73 fan @3000 and 6000 RPM.
++	 */
++	fan0: gpio-fan {
++		compatible = "gpio-fan";
++		gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>,
++			<&gpio0 12 GPIO_ACTIVE_HIGH>;
++		gpio-fan,speed-map = <0 0>, <3000 1>, <6000 2>;
++		cooling-min-level = <0>;
++		cooling-max-level = <2>;
++		#cooling-cells = <2>;
++	};
++
++
++	/* Global Mixed-Mode Technology G751 mounted on GPIO I2C */
++	gpio-i2c {
++		compatible = "i2c-gpio";
++		sda-gpios = <&gpio0 15 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
++		scl-gpios = <&gpio0 16 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		g751: temperature-sensor@48 {
++			compatible = "gmt,g751";
++			reg = <0x48>;
++			#thermal-sensor-cells = <0>;
++		};
++	};
++
++	thermal-zones {
++		chassis-thermal {
++			/* Poll every 20 seconds */
++			polling-delay = <20000>;
++			/* Poll every 2nd second when cooling */
++			polling-delay-passive = <2000>;
++
++			thermal-sensors = <&g751>;
++
++			/* Tripping points from the fan.script in the rootfs */
++			trips {
++				chassis_alert0: chassis-alert0 {
++					/* At 43 degrees turn on low speed */
++					temperature = <43000>;
++					hysteresis = <3000>;
++					type = "active";
++				};
++				chassis_alert1: chassis-alert1 {
++					/* At 47 degrees turn on high speed */
++					temperature = <47000>;
++					hysteresis = <3000>;
++					type = "active";
++				};
++				chassis_crit: chassis-crit {
++					/* Just shut down at 60 degrees */
++					temperature = <60000>;
++					hysteresis = <2000>;
++					type = "critical";
++				};
++			};
++
++			cooling-maps {
++				map0 {
++					trip = <&chassis_alert0>;
++					cooling-device = <&fan0 1 1>;
++				};
++				map1 {
++					trip = <&chassis_alert1>;
++					cooling-device = <&fan0 2 2>;
++				};
++			};
++		};
++	};
++
++	mdio0: ethernet-phy {
++		compatible = "virtual,mdio-gpio";
++		/* Uses MDC and MDIO */
++		gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>, /* MDC */
++			<&gpio0 21 GPIO_ACTIVE_HIGH>; /* MDIO */
++		#address-cells = <1>;
++		#size-cells = <0>;
++
++		/* This is a Realtek RTL8211B Gigabit ethernet transceiver */
++		phy0: ethernet-phy@1 {
++			reg = <1>;
++			device_type = "ethernet-phy";
++		};
++	};
++
++	soc {
++		flash@30000000 {
++			status = "okay";
++			/* 512KB of flash */
++			reg = <0x30000000 0x00080000>;
++
++			/*
++			 * This "RedBoot" is the Storlink derivative.
++			 */
++			partition@0 {
++				label = "RedBoot";
++				reg = <0x00000000 0x00040000>;
++				read-only;
++			};
++			partition@40000 {
++				label = "MTD1";
++				reg = <0x00040000 0x00020000>;
++				read-only;
++			};
++			partition@60000 {
++				label = "MTD2";
++				reg = <0x00060000 0x00020000>;
++				read-only;
++			};
++		};
++
++		syscon: syscon@40000000 {
++			pinctrl {
++				/*
++				 */
++				gpio0_default_pins: pinctrl-gpio0 {
++					mux {
++						function = "gpio0";
++						groups =
++						/* Used by LEDs conflicts ICE */
++						"gpio0bgrp",
++						/* Used by ? conflicts ICE */
++						"gpio0cgrp",
++						/*
++						 * Used by fan & G751, conflicts LPC,
++						 * UART modem lines, SSP
++						 */
++						"gpio0egrp",
++						/* Used by G751 */
++						"gpio0fgrp",
++						/* Used by MDIO */
++						"gpio0igrp";
++					};
++				};
++				gpio1_default_pins: pinctrl-gpio1 {
++					mux {
++						function = "gpio1";
++						/* Used by "reset" button */
++						groups = "gpio1dgrp";
++					};
++				};
++			};
++		};
++
++		sata: sata@46000000 {
++			/* The ROM uses this muxmode */
++			cortina,gemini-ata-muxmode = <3>;
++			cortina,gemini-enable-sata-bridge;
++			status = "okay";
++		};
++
++		gpio0: gpio@4d000000 {
++			pinctrl-names = "default";
++			pinctrl-0 = <&gpio0_default_pins>;
++		};
++
++		gpio1: gpio@4e000000 {
++			pinctrl-names = "default";
++			pinctrl-0 = <&gpio1_default_pins>;
++		};
++
++		ata@63000000 {
++			status = "okay";
++		};
++	};
++};