arm-bsp: n1sdp: linux-linaro-arm: Disable CONFIG_EXTRA_FIRMWARE

We don't want to build firmware blobs into the kernel binary. Also,
add linux-firmware-rtl8168 package to MACHINE_ESSENTIAL_EXTRA_RDEPENDS
to have it installed in any image by default.

Change-Id: If8a88a4ccbc6d474438a2555498989695a4b19dc
Issue-Id: SCM-954
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

@@ -18,3 +18,6 @@ SERIAL_CONSOLES = "115200;ttyAMA0"
 # Use kernel provided by linaro (Contains support for SCMi or HDMI)
 PREFERRED_PROVIDER_virtual/kernel ?= "linux-linaro-arm"
 PREFERRED_VERSION_linux-linaro-arm ?= "5.4%"
+
+# RTL8168E Gigabit Ethernet Controller is attached to the PCIe interface
+MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "linux-firmware-rtl8168"

meta-arm-bsp/recipes-kernel/linux/linux-linaro-arm-5.4/n1sdp/disable-extra-fw.cfg

@@ -0,0 +1,2 @@
+# We don't want to build firmware blobs into the kernel binary
+CONFIG_EXTRA_FIRMWARE=""

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

@@ -11,6 +11,7 @@ SRC_URI_append_n1sdp = " \
     file://0002-pci_quirk-add-acs-override-for-PCI-devices.patch \
     file://0003-pcie-Add-quirk-for-the-Arm-Neoverse-N1SDP-platform.patch \
     file://0004-n1sdp-update-n1sdp-pci-quirk-for-SR-IOV-support.patch \
+    file://disable-extra-fw.cfg \
     "
 
 # Referring to commit TAG N1SDP-2020.03.26