ipq806x: Add support for linux-4.4

1)Changes

- Rebased the patches for linux-4.4.7
- Added patch to fix spi nor fifo and dma support
- Added patch to configure watchdog barktime

2)Testing

Tested on IPQ AP148 Board:
 a. NOR boot and NAND boot
 b. ethernet network and ath10k wifi
 c. ubi sysupgrade

UnTested
 dwc3 usb has not been validated on IPQ board(AP148)

3)Known Issues:
 Once we flash ubi image on AP148, and if we reset the board, uboot on
 first boot creates PEB and LEB for dynamic sized partitions, which is incorrect
 and not what linux expects which causes errors when trying to mount rootfs.
 In order to test this, we can use the below steps:
  a. Flash the ubi image on board and don't reset the board
  b. load the kernel fit image in RAM and boot from there.

Signed-off-by: Ram Chandra Jangir <rjangi@codeaurora.org>

1 files changed, 160 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/022-add-db149-dts.patch b/target/linux/ipq806x/patches-4.4/022-add-db149-dts.patch
new file mode 100644
index 0000000000..4d3e827b51
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/022-add-db149-dts.patch
@@ -0,0 +1,160 @@
+From f26cc3733bdd697bd81ae505fc133fa7c9b6ea19 Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Tue, 7 Apr 2015 19:58:58 -0700
+Subject: [PATCH] ARM: dts: qcom: add initial DB149 device-tree
+
+Add basic DB149 (IPQ806x based platform) device-tree. It supports UART,
+SATA, USB2, USB3 and NOR flash.
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ arch/arm/boot/dts/Makefile               |   1 +
+ arch/arm/boot/dts/qcom-ipq8064-db149.dts | 132 +++++++++++++++++++++++++++++++
+ 2 files changed, 133 insertions(+)
+ create mode 100644 arch/arm/boot/dts/qcom-ipq8064-db149.dts
+
+--- a/arch/arm/boot/dts/Makefile
++++ b/arch/arm/boot/dts/Makefile
+@@ -506,6 +506,7 @@
+ 	qcom-apq8084-ifc6540.dtb \
+ 	qcom-apq8084-mtp.dtb \
+ 	qcom-ipq8064-ap148.dtb \
++	qcom-ipq8064-db149.dtb \
+ 	qcom-msm8660-surf.dtb \
+ 	qcom-msm8960-cdp.dtb \
+ 	qcom-msm8974-sony-xperia-honami.dtb
+--- /dev/null
++++ b/arch/arm/boot/dts/qcom-ipq8064-db149.dts
+@@ -0,0 +1,132 @@
++#include "qcom-ipq8064-v1.0.dtsi"
++
++/ {
++	model = "Qualcomm IPQ8064/DB149";
++	compatible = "qcom,ipq8064-db149", "qcom,ipq8064";
++
++	reserved-memory {
++		#address-cells = <1>;
++		#size-cells = <1>;
++		ranges;
++		rsvd@41200000 {
++			reg = <0x41200000 0x300000>;
++			no-map;
++		};
++	};
++
++	alias {
++		serial0 = &uart2;
++	};
++
++	chosen {
++		linux,stdout-path = "serial0:115200n8";
++	};
++
++	soc {
++		pinmux@800000 {
++			i2c4_pins: i2c4_pinmux {
++				pins = "gpio12", "gpio13";
++				function = "gsbi4";
++				bias-disable;
++			};
++
++			spi_pins: spi_pins {
++				mux {
++					pins = "gpio18", "gpio19", "gpio21";
++					function = "gsbi5";
++					drive-strength = <10>;
++					bias-none;
++				};
++			};
++		};
++
++		gsbi2: gsbi@12480000 {
++			qcom,mode = <GSBI_PROT_I2C_UART>;
++			status = "ok";
++			uart2: serial@12490000 {
++				status = "ok";
++			};
++		};
++
++		gsbi5: gsbi@1a200000 {
++			qcom,mode = <GSBI_PROT_SPI>;
++			status = "ok";
++
++			spi4: spi@1a280000 {
++				status = "ok";
++				spi-max-frequency = <50000000>;
++
++				pinctrl-0 = <&spi_pins>;
++				pinctrl-names = "default";
++
++				cs-gpios = <&qcom_pinmux 20 0>;
++
++				flash: m25p80@0 {
++					compatible = "s25fl256s1";
++					#address-cells = <1>;
++					#size-cells = <1>;
++					spi-max-frequency = <50000000>;
++					reg = <0>;
++					m25p,fast-read;
++
++					partition@0 {
++						label = "lowlevel_init";
++						reg = <0x0 0x1b0000>;
++					};
++
++					partition@1 {
++						label = "u-boot";
++						reg = <0x1b0000 0x80000>;
++					};
++
++					partition@2 {
++						label = "u-boot-env";
++						reg = <0x230000 0x40000>;
++					};
++
++					partition@3 {
++						label = "caldata";
++						reg = <0x270000 0x40000>;
++					};
++
++					partition@4 {
++						label = "firmware";
++						reg = <0x2b0000 0x1d50000>;
++					};
++				};
++			};
++		};
++
++		sata-phy@1b400000 {
++			status = "ok";
++		};
++
++		sata@29000000 {
++			status = "ok";
++		};
++
++		phy@100f8800 {		/* USB3 port 1 HS phy */
++			status = "ok";
++		};
++
++		phy@100f8830 {		/* USB3 port 1 SS phy */
++			status = "ok";
++		};
++
++		phy@110f8800 {		/* USB3 port 0 HS phy */
++			status = "ok";
++		};
++
++		phy@110f8830 {		/* USB3 port 0 SS phy */
++			status = "ok";
++		};
++
++		usb30@0 {
++			status = "ok";
++		};
++
++		usb30@1 {
++			status = "ok";
++		};
++	};
++};