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, 33 insertions, 0 deletions

diff --git a/target/linux/ipq806x/patches-4.4/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch b/target/linux/ipq806x/patches-4.4/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch
new file mode 100644
index 0000000000..e1d317de47
--- /dev/null
+++ b/target/linux/ipq806x/patches-4.4/033-ARM-qcom-add-SFPB-nodes-to-IPQ806x-dts.patch
@@ -0,0 +1,33 @@
+From c7c482da19a5e4ba7101198c21c2434056b0b2da Mon Sep 17 00:00:00 2001
+From: Mathieu Olivari <mathieu@codeaurora.org>
+Date: Thu, 13 Aug 2015 09:45:26 -0700
+Subject: [PATCH 1/3] ARM: qcom: add SFPB nodes to IPQ806x dts
+
+Add one new node to the ipq806x.dtsi file to declare & register the
+hardware spinlock devices. This mechanism is required to be used by
+other drivers such as SMEM.
+
+Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org>
+---
+ arch/arm/boot/dts/qcom-ipq8064.dtsi | 11 +++++++++++
+ 1 file changed, 11 insertions(+)
+
+--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
++++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
+@@ -329,5 +329,16 @@
+ 			#reset-cells = <1>;
+ 		};
+ 
++		sfpb_mutex_block: syscon@1200600 {
++			compatible = "syscon";
++			reg = <0x01200600 0x100>;
++		};
++	};
++
++	sfpb_mutex: sfpb-mutex {
++		compatible = "qcom,sfpb-mutex";
++		syscon = <&sfpb_mutex_block 4 4>;
++
++		#hwlock-cells = <1>;
+ 	};
+ };