Merge ~ondrak/ubuntu/+source/linux/+git/xenial:adding-pi3bp-support into ~ubuntu-kernel/ubuntu/+source/linux/+git/xenial:raspi2

[Ondrej Kubik]

Adding Raspberry 3 B plus support
- adding dts files for Pi 3 B plus
- updating config to build in Pi3 B plus LAN driver and serial dev bus

[Paolo Pisati (p-pisati)]

I don't have write access to the kernel repository, only the stable team has it: resend it to the ubuntu kernel ml for review.

Plus, it's missing an LP bug and the buglink.

And the config changes, split it into a separate commit and send it against the ubuntu config so we don't have two kernels with two different configs (the ubuntu kernel and the kernel generated by this snapcraft).

review: Disapprove

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index bd963ef..f765350 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_BCM2708) += bcm2708-rpi-cm.dtb
 dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-cm.dtb
 dtb-$(CONFIG_ARCH_BCM2709) += bcm2709-rpi-2-b.dtb
 dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b.dtb
+dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-3-b-plus.dtb
 dtb-$(CONFIG_ARCH_BCM2709) += bcm2710-rpi-cm3.dtb
 
 # Raspberry Pi
diff --git a/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
 new file mode 100644
index 0000000..ad5e821
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2710-rpi-3-b-plus.dts
@@ -0,0 +1,215 @@
+/dts-v1/;
+
+#include "bcm2710.dtsi"
+#include "bcm283x-rpi-lan7515.dtsi"
+
+/ {
+	compatible = "brcm,bcm2710","brcm,bcm2709";
+	model = "Raspberry Pi 3 Model B+";
+};
+
+&gpio {
+	sdhost_pins: sdhost_pins {
+		brcm,pins = <48 49 50 51 52 53>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	spi0_pins: spi0_pins {
+		brcm,pins = <9 10 11>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	spi0_cs_pins: spi0_cs_pins {
+		brcm,pins = <8 7>;
+		brcm,function = <1>; /* output */
+	};
+
+	i2c0_pins: i2c0 {
+		brcm,pins = <0 1>;
+		brcm,function = <4>;
+	};
+
+	i2c1_pins: i2c1 {
+		brcm,pins = <2 3>;
+		brcm,function = <4>;
+	};
+
+	i2s_pins: i2s {
+		brcm,pins = <18 19 20 21>;
+		brcm,function = <4>; /* alt0 */
+	};
+
+	sdio_pins: sdio_pins {
+		brcm,pins =     <34 35 36 37 38 39>;
+		brcm,function = <7>; // alt3 = SD1
+		brcm,pull =     <0 2 2 2 2 2>;
+	};
+
+	bt_pins: bt_pins {
+		brcm,pins = <43>;
+		brcm,function = <4>; /* alt0:GPCLK2 */
+		brcm,pull = <0>;
+	};
+
+	uart0_pins: uart0_pins {
+		brcm,pins = <32 33>;
+		brcm,function = <7>; /* alt3=UART0 */
+		brcm,pull = <0 2>;
+	};
+
+	uart1_pins: uart1_pins {
+		brcm,pins;
+		brcm,function;
+		brcm,pull;
+	};
+
+	audio_pins: audio_pins {
+		brcm,pins = <40 41>;
+		brcm,function = <4>;
+	};
+};
+
+&sdhost {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhost_pins>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&mmc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdio_pins>;
+	non-removable;
+	bus-width = <4>;
+	status = "okay";
+	brcm,overclock-50 = <0>;
+};
+
+&soc {
+	expgpio: expgpio {
+		compatible = "brcm,bcm2835-expgpio";
+		gpio-controller;
+		#gpio-cells = <2>;
+		firmware = <&firmware>;
+		status = "okay";
+	};
+};
+
+&fb {
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins &bt_pins>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+};
+
+&spi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
+	cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
+
+	spidev0: spidev@0{
+		compatible = "spidev";
+		reg = <0>;	/* CE0 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+
+	spidev1: spidev@1{
+		compatible = "spidev";
+		reg = <1>;	/* CE1 */
+		#address-cells = <1>;
+		#size-cells = <0>;
+		spi-max-frequency = <500000>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <100000>;
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+};
+
+&i2s {
+	#sound-dai-cells = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2s_pins>;
+};
+
+&random {
+	status = "okay";
+};
+
+&leds {
+	act_led: act {
+		label = "led0";
+		linux,default-trigger = "mmc0";
+		gpios = <&gpio 29 0>;
+	};
+
+	pwr_led: pwr {
+		label = "led1";
+		linux,default-trigger = "default-on";
+		gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
+	};
+};
+
+
+&audio {
+	pinctrl-names = "default";
+	pinctrl-0 = <&audio_pins>;
+};
+
+/ {
+	chosen {
+		bootargs = "8250.nr_uarts=1";
+	};
+};
+
+/ {
+	__overrides__ {
+		uart0 = <&uart0>,"status";
+		uart0_clkrate = <&clk_uart0>,"clock-frequency:0";
+		uart1 = <&uart1>,"status";
+		i2s = <&i2s>,"status";
+		spi = <&spi0>,"status";
+		i2c0 = <&i2c0>,"status";
+		i2c1 = <&i2c1>,"status";
+		i2c2_iknowwhatimdoing = <&i2c2>,"status";
+		i2c0_baudrate = <&i2c0>,"clock-frequency:0";
+		i2c1_baudrate = <&i2c1>,"clock-frequency:0";
+		i2c2_baudrate = <&i2c2>,"clock-frequency:0";
+		core_freq = <&clk_core>,"clock-frequency:0";
+
+		act_led_gpio = <&act_led>,"gpios:4";
+		act_led_activelow = <&act_led>,"gpios:8";
+		act_led_trigger = <&act_led>,"linux,default-trigger";
+
+		audio = <&audio>,"status";
+		watchdog = <&watchdog>,"status";
+		random = <&random>,"status";
+		sd_overclock = <&sdhost>,"brcm,overclock-50:0";
+		sd_force_pio = <&sdhost>,"brcm,force-pio?";
+		sd_pio_limit = <&sdhost>,"brcm,pio-limit:0";
+		sd_debug     = <&sdhost>,"brcm,debug";
+	};
+};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
 new file mode 100644
index 0000000..85f7334
--- /dev/null
+++ b/arch/arm/boot/dts/bcm283x-rpi-lan7515.dtsi
@@ -0,0 +1,36 @@
+/ {
+	aliases {
+		ethernet = &ethernet;
+	};
+};
+
+&usb {
+	usb1@1 {
+		compatible = "usb424,2514";
+		reg = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb1_1@1 {
+			compatible = "usb424,2514";
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ethernet: usbether@1 {
+				compatible = "usb424,7800";
+				reg = <1>;
+				microchip,eee-enabled;
+				microchip,tx-lpi-timer = <600>; /* non-aggressive*/
+			};
+		};
+	};
+};
+
+
+/ {
+	__overrides__ {
+		eee = <&ethernet>,"microchip,eee-enabled?";
+		tx_lpi_timer = <&ethernet>,"microchip,tx-lpi-timer:0";
+	};
+};
diff --git a/arch/arm/boot/dts/overlays/README b/arch/arm/boot/dts/overlays/README
index 72601f8..8d323b7 100644
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -86,6 +86,10 @@ Params:
         audio                   Set to "on" to enable the onboard ALSA audio
                                 interface (default "off")
 
+        eee                     Enable Energy Efficient Ethernet support for
+                                compatible devices (default "on"). See also
+                                "tx_lpi_timer".
+
         i2c_arm                 Set to "on" to enable the ARM's i2c interface
                                 (default "off")
 
@@ -122,6 +126,10 @@ Params:
 
         sd_debug                Enable debug output from SD driver (default off)
 
+        tx_lpi_timer            Set the delay in microseconds between going idle
+                                and entering the low power state (default 600).
+                                Requires EEE to be enabled - see "eee".
+
         uart0                   Set to "off" to disable uart0 (default "on")
 
         uart1                   Set to "on" or "off" to enable or disable uart1
diff --git a/snapcraft.yaml b/snapcraft.yaml
index ab6142a..301e763 100644
--- a/snapcraft.yaml
+++ b/snapcraft.yaml
@@ -17,6 +17,8 @@ parts:
     kconfigflavour: raspi2
     kconfigs:
       - CONFIG_DEBUG_INFO=n
+      - CONFIG_USB_LAN78XX=y
+      - CONFIG_SERIAL_DEV_BUS=m
     kernel-image-target: zImage
     install: |
       tar -C $SNAPCRAFT_PART_INSTALL/dtbs -f $SNAPCRAFT_PART_INSTALL/dtbs/overlays.tgz -czv overlays