grub: drop custom recipe and migrate to the upstream grub-efi version

conf/machine/bubblegum.conf

@@ -22,7 +22,7 @@ KERNEL_DEVICETREE = "s900_96board.dtb"
 SERIAL_CONSOLE = "115200 ttyS5"
 
 MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "\
-    grub \
+    grub-efi \
 "
 
 # Pick the right subpackage, instead of the few hundred megs large main package
@@ -38,4 +38,4 @@ IMAGE_FSTYPES_append = " ext4.gz"
 IMAGE_ROOTFS_ALIGNMENT = "4096"
 EXTRA_IMAGECMD_ext4 += " -L SYSTEM "
 
-EXTRA_IMAGEDEPENDS = "grub"
+EXTRA_IMAGEDEPENDS = "grub-efi"

conf/machine/hikey.conf

@@ -26,7 +26,7 @@ SERIAL_CONSOLES = "115200;${CONSOLE}"
 
 MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "\
     edk2-hikey \
-    grub \
+    grub-efi \
 "
 
 MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "linux-firmware-wl12xx \
@@ -48,7 +48,7 @@ IMAGE_FSTYPES_append = " ext4.gz"
 IMAGE_ROOTFS_ALIGNMENT = "4096"
 EXTRA_IMAGECMD_ext4 += " -L rootfs "
 
-EXTRA_IMAGEDEPENDS = "edk2-hikey grub burn-boot"
+EXTRA_IMAGEDEPENDS = "edk2-hikey grub-efi burn-boot"
 
 # Ensure we have enough free space to deploy tests
 IMAGE_ROOTFS_EXTRA_SPACE = "1048576"

conf/machine/hikey960.conf

@@ -23,7 +23,7 @@ SERIAL_CONSOLE = "115200 ttyAMA6"
 
 MACHINE_ESSENTIAL_EXTRA_RDEPENDS += "\
     edk2-hikey960 \
-    grub \
+    grub-efi \
 "
 
 MACHINE_ESSENTIAL_EXTRA_RRECOMMENDS += "linux-firmware-wl12xx \
@@ -45,7 +45,7 @@ IMAGE_FSTYPES_append = " ext4.gz"
 IMAGE_ROOTFS_ALIGNMENT = "4096"
 EXTRA_IMAGECMD_ext4 += " -L rootfs "
 
-EXTRA_IMAGEDEPENDS = "edk2-hikey960 grub"
+EXTRA_IMAGEDEPENDS = "edk2-hikey960 grub-efi"
 
 # FIXME unless we set image rootfs extra space, the generated image is corrupted.
 IMAGE_ROOTFS_EXTRA_SPACE = "1048576"

recipes-bsp/grub/grub-efi_2.%.bbappend

@@ -0,0 +1,30 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI += "file://cfg.emmc \
+           file://cfg.sdcard \
+           "
+
+GRUB_BUILDIN_append = " chain echo efinet eval font gettext gfxterm gzio help lsefi read regexp search_fs_file search_fs_uuid search_label terminal terminfo tftp time"
+
+python () {
+    # Standard config provided by OE-Core
+    grub_cfg = 'cfg'
+
+    emmc = d.getVar('CMDLINE_ROOT_EMMC', True)
+    sdcard = d.getVar('CMDLINE_ROOT_SDCARD', True)
+    cmdline = d.getVar('CMDLINE', True)
+    if emmc is not None and emmc in cmdline:
+        grub_cfg = 'cfg.emmc'
+    elif sdcard is not None and sdcard in cmdline:
+        grub_cfg = 'cfg.sdcard'
+
+    d.setVar('GRUB_CFG', grub_cfg)
+}
+
+do_mkimage_append_class-target() {
+	# Search for the grub.cfg on the local boot media by using the
+	# built in cfg file provided via this recipe
+	grub-mkimage -c ../${GRUB_CFG} -p /EFI/BOOT -d ./grub-core/ \
+	               -O ${GRUB_TARGET}-efi -o ./${GRUB_IMAGE_PREFIX}${GRUB_IMAGE} \
+	               ${GRUB_BUILDIN}
+}