arm-bsp: n1sdp: Add Linux kernel device-tree support

Update both machine configuration and kernel recipe to
support Linux Kernel device-tree compilation.

Change-Id: I01fa654bd88e0d2b7a4bfcc7cb60222c120a0473
Issue-Id: SCM-888
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>

meta-arm-bsp/conf/machine/n1sdp.conf

@@ -9,6 +9,7 @@ TUNE_FEATURES = "aarch64"
 require conf/machine/include/arm/arch-armv8a.inc
 
 KERNEL_IMAGETYPE = "Image"
+KERNEL_DEVICETREE = "n1sdp/n1sdp.dtb"
 
 IMAGE_FSTYPES += "tar.bz2 ext4"
 

meta-arm-bsp/recipes-kernel/linux/linux-linaro-arm_5.4.bbappend

@@ -6,6 +6,7 @@ FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}-5.4:"
 
 # Apply N1SDP specific patches
 SRC_URI_append_n1sdp = " \
+    git://git.linaro.org/landing-teams/working/arm/device-tree.git;name=dts;nobranch=1;destsuffix=git/arch/arm64/boot/dts \
     file://0001-TMP-iommu-arm-smmu-v3-Ignore-IOPF-capabilities.patch \
     file://0002-pci_quirk-add-acs-override-for-PCI-devices.patch \
     file://0003-pcie-Add-quirk-for-the-Arm-Neoverse-N1SDP-platform.patch \
@@ -14,6 +15,7 @@ SRC_URI_append_n1sdp = " \
 
 # Referring to commit TAG N1SDP-2020.03.26
 SRCREV_n1sdp  = "137cccb0843e63b031acf67d1ca4f6447b8c417c"
+SRCREV_dts_n1sdp = "3209a868152f348194cc1f20fd87c759d3a97d45"
 
 # Use intree defconfig
 KBUILD_DEFCONFIG_n1sdp = "defconfig"