These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

3 files changed, 402 insertions, 0 deletions

diff --git a/kernel/arch/arm64/boot/dts/altera/Makefile b/kernel/arch/arm64/boot/dts/altera/Makefile
new file mode 100644
index 000000000..d7a641698
--- /dev/null
+++ b/kernel/arch/arm64/boot/dts/altera/Makefile
@@ -0,0 +1,5 @@
+dtb-$(CONFIG_ARCH_STRATIX10) += socfpga_stratix10_socdk.dtb
+
+always		:= $(dtb-y)
+subdir-y	:= $(dts-dirs)
+clean-files	:= *.dtb
diff --git a/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi b/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
new file mode 100644
index 000000000..445aa678f
--- /dev/null
+++ b/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10.dtsi
@@ -0,0 +1,358 @@
+/*
+ * Copyright Altera Corporation (C) 2015. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+
+/ {
+	compatible = "altr,socfpga-stratix10";
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x0>;
+		};
+
+		cpu1: cpu@1 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x1>;
+		};
+
+		cpu2: cpu@2 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x2>;
+		};
+
+		cpu3: cpu@3 {
+			compatible = "arm,cortex-a53", "arm,armv8";
+			device_type = "cpu";
+			enable-method = "psci";
+			reg = <0x3>;
+		};
+	};
+
+	pmu {
+		compatible = "arm,armv8-pmuv3";
+		interrupts = <0 120 8>,
+			     <0 121 8>,
+			     <0 122 8>,
+			     <0 123 8>;
+		interrupt-affinity = <&cpu0>,
+				     <&cpu1>,
+				     <&cpu2>,
+				     <&cpu3>;
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+	};
+
+	intc: intc@fffc1000 {
+		compatible = "arm,gic-400", "arm,cortex-a15-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0x0 0xfffc1000 0x1000>,
+		      <0x0 0xfffc2000 0x2000>,
+		      <0x0 0xfffc4000 0x2000>,
+		      <0x0 0xfffc6000 0x2000>;
+	};
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		device_type = "soc";
+		interrupt-parent = <&intc>;
+		ranges = <0 0 0 0xffffffff>;
+
+		clkmgr@ffd1000 {
+			compatible = "altr,clk-mgr";
+			reg = <0xffd10000 0x1000>;
+		};
+
+		gmac0: ethernet@ff800000 {
+			compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac";
+			reg = <0xff800000 0x2000>;
+			interrupts = <0 90 4>;
+			interrupt-names = "macirq";
+			mac-address = [00 00 00 00 00 00];
+			status = "disabled";
+		};
+
+		gmac1: ethernet@ff802000 {
+			compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac";
+			reg = <0xff802000 0x2000>;
+			interrupts = <0 91 4>;
+			interrupt-names = "macirq";
+			mac-address = [00 00 00 00 00 00];
+			status = "disabled";
+		};
+
+		gmac2: ethernet@ff804000 {
+			compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac";
+			reg = <0xff804000 0x2000>;
+			interrupts = <0 92 4>;
+			interrupt-names = "macirq";
+			mac-address = [00 00 00 00 00 00];
+			status = "disabled";
+		};
+
+		gpio0: gpio@ffc03200 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,dw-apb-gpio";
+			reg = <0xffc03200 0x100>;
+			status = "disabled";
+
+			porta: gpio-controller@0 {
+				compatible = "snps,dw-apb-gpio-port";
+				gpio-controller;
+				#gpio-cells = <2>;
+				snps,nr-gpios = <24>;
+				reg = <0>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <0 110 4>;
+			};
+		};
+
+		gpio1: gpio@ffc03300 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,dw-apb-gpio";
+			reg = <0xffc03300 0x100>;
+			status = "disabled";
+
+			portb: gpio-controller@0 {
+				compatible = "snps,dw-apb-gpio-port";
+				gpio-controller;
+				#gpio-cells = <2>;
+				snps,nr-gpios = <24>;
+				reg = <0>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <0 110 4>;
+			};
+		};
+
+		i2c0: i2c@ffc02800 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,designware-i2c";
+			reg = <0xffc02800 0x100>;
+			interrupts = <0 103 4>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@ffc02900 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,designware-i2c";
+			reg = <0xffc02900 0x100>;
+			interrupts = <0 104 4>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@ffc02a00 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,designware-i2c";
+			reg = <0xffc02a00 0x100>;
+			interrupts = <0 105 4>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@ffc02b00 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,designware-i2c";
+			reg = <0xffc02b00 0x100>;
+			interrupts = <0 106 4>;
+			status = "disabled";
+		};
+
+		i2c4: i2c@ffc02c00 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "snps,designware-i2c";
+			reg = <0xffc02c00 0x100>;
+			interrupts = <0 107 4>;
+			status = "disabled";
+		};
+
+		mmc: dwmmc0@ff808000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "altr,socfpga-dw-mshc";
+			reg = <0xff808000 0x1000>;
+			interrupts = <0 96 4>;
+			fifo-depth = <0x400>;
+			status = "disabled";
+		};
+
+		ocram: sram@ffe00000 {
+			compatible = "mmio-sram";
+			reg = <0xffe00000 0x100000>;
+		};
+
+		rst: rstmgr@ffd11000 {
+			#reset-cells = <1>;
+			compatible = "altr,rst-mgr";
+			reg = <0xffd11000 0x1000>;
+		};
+
+		spi0: spi@ffda4000 {
+			compatible = "snps,dw-apb-ssi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xffda4000 0x1000>;
+			interrupts = <0 101 4>;
+			num-chipselect = <4>;
+			bus-num = <0>;
+			status = "disabled";
+		};
+
+		spi1: spi@ffda5000 {
+			compatible = "snps,dw-apb-ssi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0xffda5000 0x1000>;
+			interrupts = <0 102 4>;
+			num-chipselect = <4>;
+			bus-num = <0>;
+			status = "disabled";
+		};
+
+		sysmgr: sysmgr@ffd12000 {
+			compatible = "altr,sys-mgr", "syscon";
+			reg = <0xffd12000 0x1000>;
+		};
+
+		/* Local timer */
+		timer {
+			compatible = "arm,armv8-timer";
+			interrupts = <1 13 0xf01>,
+				     <1 14 0xf01>,
+				     <1 11 0xf01>,
+				     <1 10 0xf01>;
+		};
+
+		timer0: timer0@ffc03000 {
+			compatible = "snps,dw-apb-timer";
+			interrupts = <0 113 4>;
+			reg = <0xffc03000 0x100>;
+		};
+
+		timer1: timer1@ffc03100 {
+			compatible = "snps,dw-apb-timer";
+			interrupts = <0 114 4>;
+			reg = <0xffc03100 0x100>;
+		};
+
+		timer2: timer2@ffd00000 {
+			compatible = "snps,dw-apb-timer";
+			interrupts = <0 115 4>;
+			reg = <0xffd00000 0x100>;
+		};
+
+		timer3: timer3@ffd00100 {
+			compatible = "snps,dw-apb-timer";
+			interrupts = <0 116 4>;
+			reg = <0xffd00100 0x100>;
+		};
+
+		uart0: serial0@ffc02000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0xffc02000 0x100>;
+			interrupts = <0 108 4>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+
+		uart1: serial1@ffc02100 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0xffc02100 0x100>;
+			interrupts = <0 109 4>;
+			reg-shift = <2>;
+			reg-io-width = <4>;
+			status = "disabled";
+		};
+
+		usbphy0: usbphy@0 {
+			#phy-cells = <0>;
+			compatible = "usb-nop-xceiv";
+			status = "okay";
+		};
+
+		usb0: usb@ffb00000 {
+			compatible = "snps,dwc2";
+			reg = <0xffb00000 0x40000>;
+			interrupts = <0 93 4>;
+			phys = <&usbphy0>;
+			phy-names = "usb2-phy";
+			status = "disabled";
+		};
+
+		usb1: usb@ffb40000 {
+			compatible = "snps,dwc2";
+			reg = <0xffb40000 0x40000>;
+			interrupts = <0 94 4>;
+			phys = <&usbphy0>;
+			phy-names = "usb2-phy";
+			status = "disabled";
+		};
+
+		watchdog0: watchdog@ffd00200 {
+			compatible = "snps,dw-wdt";
+			reg = <0xffd00200 0x100>;
+			interrupts = <0 117 4>;
+			status = "disabled";
+		};
+
+		watchdog1: watchdog@ffd00300 {
+			compatible = "snps,dw-wdt";
+			reg = <0xffd00300 0x100>;
+			interrupts = <0 118 4>;
+			status = "disabled";
+		};
+
+		watchdog2: watchdog@ffd00400 {
+			compatible = "snps,dw-wdt";
+			reg = <0xffd00400 0x100>;
+			interrupts = <0 125 4>;
+			status = "disabled";
+		};
+
+		watchdog3: watchdog@ffd00500 {
+			compatible = "snps,dw-wdt";
+			reg = <0xffd00500 0x100>;
+			interrupts = <0 126 4>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts b/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
new file mode 100644
index 000000000..41ea2dba2
--- /dev/null
+++ b/kernel/arch/arm64/boot/dts/altera/socfpga_stratix10_socdk.dts
@@ -0,0 +1,39 @@
+/*
+ * Copyright Altera Corporation (C) 2015. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/include/ "socfpga_stratix10.dtsi"
+
+/ {
+	model = "SoCFPGA Stratix 10 SoCDK";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory {
+		device_type = "memory";
+		/* We expect the bootloader to fill in the reg */
+		reg = <0 0 0 0>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};