[yocto] [meta-raspberrypi][PATCH 1/2] linux-rpi: Enable kconf options to enable initramfs support

[Khem Raj]

Additionally add few few file systems e.g. squashfs, overlayfs
to support booting with initramfs

Drop checking for target triplet to set EABI, rpi probaly should
not have any legacy into OABI world.

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 recipes-kernel/linux/linux-rpi.inc | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/recipes-kernel/linux/linux-rpi.inc b/recipes-kernel/linux/linux-rpi.inc
index fae78b7..1755685 100644
--- a/recipes-kernel/linux/linux-rpi.inc
+++ b/recipes-kernel/linux/linux-rpi.inc
@@ -18,6 +18,8 @@ UDEV_GE_141 ?= "1"
 CMDLINE_DEBUG ?= '${@base_conditional("DISTRO_TYPE", "release", "quiet", "debug", d)}'
 CMDLINE_append = " ${CMDLINE_DEBUG}"
 
+KERNEL_INITRAMFS ?= '${@base_conditional("INITRAMFS_IMAGE_BUNDLE", "1", "1", "", d)}'
+
 # Set a variable in .configure
 # $1 - Configure variable to be set
 # $2 - value [n/y/value]
@@ -38,15 +40,10 @@ do_configure_prepend() {
     CONF_SED_SCRIPT=""
 
     # oabi / eabi support
-    if [ "${TARGET_OS}" = "linux-gnueabi" -o  "${TARGET_OS}" = "linux-uclibceabi" ]; then
-        kernel_configure_variable AEABI y
-        if [ "${ARM_KEEP_OABI}" = "1" ] ; then
-            kernel_configure_variable OABI_COMPAT y
-        else
-            kernel_configure_variable OABI_COMPAT n
-        fi
+    kernel_configure_variable AEABI y
+    if [ "${ARM_KEEP_OABI}" = "1" ] ; then
+        kernel_configure_variable OABI_COMPAT y
     else
-        kernel_configure_variable AEABI n
         kernel_configure_variable OABI_COMPAT n
     fi
 
@@ -103,7 +100,14 @@ do_configure_prepend() {
         kernel_configure_variable ROOT_NFS y
         kernel_configure_variable CMDLINE "\"${CMDLINE_NFSROOT_USB}\""
     fi
-
+    if [ ! -z "${KERNEL_INITRAMFS}" ]; then
+        kernel_configure_variable BLK_DEV_INITRD y
+        kernel_configure_variable INITRAMFS_SOURCE ""
+        kernel_configure_variable RD_GZIP y
+        kernel_configure_variable OVERLAY_FS y
+        kernel_configure_variable SQUASHFS y
+        kernel_configure_variable UBIFS_FS y
+    fi
     # Activate CONFIG_LEGACY_PTYS
     kernel_configure_variable LEGACY_PTYS y
 
-- 
2.8.2