Add genericarm64 MACHINE

This is a new 64-bit "generic" Arm machine, that expects the hardware to
be SystemReady IR compatible.

Signed-off-by: Ross Burton <ross.burton@arm.com>

4 files changed, 53 insertions, 0 deletions

diff --git a/meta-yocto-bsp/README.hardware.md b/meta-yocto-bsp/README.hardware.md
index a8f38cb21a..58ebc328b5 100644
--- a/meta-yocto-bsp/README.hardware.md
+++ b/meta-yocto-bsp/README.hardware.md
@@ -29,6 +29,7 @@ The following boards are supported by the meta-yocto-bsp layer:
 
   * Texas Instruments Beaglebone (beaglebone-yocto)
   * General IA platforms (genericx86 and genericx86-64)
+  * General 64-bit Arm SystemReady platforms (genericarm64)
 
 For more information see the board's section below. The appropriate MACHINE
 variable value corresponding to the board is given in brackets.
@@ -126,6 +127,12 @@ USB Device:
        dd command to write the image to a USB stick.
 
 
+SystemReady Arm Platforms
+=========================
+
+TODO
+
+
 Texas Instruments Beaglebone (beaglebone-yocto)
 ===============================================
 
diff --git a/meta-yocto-bsp/conf/machine/genericarm64.conf b/meta-yocto-bsp/conf/machine/genericarm64.conf
new file mode 100644
index 0000000000..2ea270d8b0
--- /dev/null
+++ b/meta-yocto-bsp/conf/machine/genericarm64.conf
@@ -0,0 +1,26 @@
+#@TYPE: Machine
+#@NAME: genericarm64
+#@DESCRIPTION: Generic Arm64 machine for typical SystemReady platforms, which
+#have working firmware and boot via EFI.
+
+require conf/machine/include/arm/arch-armv8a.inc
+
+# Arm Base System Architecture says v8.0+ is allowed, but FEAT_CRC32 is required
+DEFAULTTUNE = "armv8a-crc"
+
+MACHINE_FEATURES = "acpi alsa bluetooth efi keyboard pci qemu-usermode rtc screen usbhost vfat wifi"
+
+# Install all the kernel modules and all the firmware
+MACHINE_EXTRA_RRECOMMENDS += "kernel-modules linux-firmware"
+
+KERNEL_IMAGETYPE = "Image"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
+INITRAMFS_IMAGE ?= "core-image-initramfs-boot"
+
+IMAGE_FSTYPES ?= "wic"
+WKS_FILE ?= "genericarm64.wks.in"
+
+EFI_PROVIDER ?= "${@bb.utils.contains("DISTRO_FEATURES", "systemd", "systemd-boot", "grub-efi", d)}"
+
+# Try to bring up one physical serial console, or a virtualized serial console
+SERIAL_CONSOLES ?= "115200;ttyAMA0 115200;hvc0"
diff --git a/meta-yocto-bsp/recipes-kernel/linux/linux-yocto_6.6.bbappend b/meta-yocto-bsp/recipes-kernel/linux/linux-yocto_6.6.bbappend
index 8e465c241e..18f95de348 100644
--- a/meta-yocto-bsp/recipes-kernel/linux/linux-yocto_6.6.bbappend
+++ b/meta-yocto-bsp/recipes-kernel/linux/linux-yocto_6.6.bbappend
@@ -1,19 +1,28 @@
 KBRANCH:genericx86  = "v6.6/standard/base"
+KBRANCH:genericarm64  = "v6.6/standard/base"
 KBRANCH:genericx86-64  = "v6.6/standard/base"
 KBRANCH:beaglebone-yocto = "v6.6/standard/beaglebone"
 
+KMACHINE:genericarm64 ?= "genericarm64"
 KMACHINE:genericx86 ?= "common-pc"
 KMACHINE:genericx86-64 ?= "common-pc-64"
 KMACHINE:beaglebone-yocto ?= "beaglebone"
 
+SRCREV_machine:genericarm64 ?= "332d4668fcc32826907d4f3c4938845206006089"
 SRCREV_machine:genericx86 ?= "332d4668fcc32826907d4f3c4938845206006089"
 SRCREV_machine:genericx86-64 ?= "332d4668fcc32826907d4f3c4938845206006089"
 SRCREV_machine:beaglebone-yocto ?= "332d4668fcc32826907d4f3c4938845206006089"
 
+COMPATIBLE_MACHINE:genericarm64 = "genericarm64"
 COMPATIBLE_MACHINE:genericx86 = "genericx86"
 COMPATIBLE_MACHINE:genericx86-64 = "genericx86-64"
 COMPATIBLE_MACHINE:beaglebone-yocto = "beaglebone-yocto"
 
+LINUX_VERSION:genericarm64 = "6.6.15"
 LINUX_VERSION:genericx86 = "6.6.15"
 LINUX_VERSION:genericx86-64 = "6.6.15"
 LINUX_VERSION:beaglebone-yocto = "6.6.15"
+
+# Use upstream defconfig for genericarm64
+KBUILD_DEFCONFIG:genericarm64 = "defconfig"
+KCONFIG_MODE:genericarm64 = "--alldefconfig"
diff --git a/meta-yocto-bsp/wic/genericarm64.wks.in b/meta-yocto-bsp/wic/genericarm64.wks.in
new file mode 100644
index 0000000000..417d4d8810
--- /dev/null
+++ b/meta-yocto-bsp/wic/genericarm64.wks.in
@@ -0,0 +1,11 @@
+# short-description: Create an EFI disk image
+# long-description: Creates a partitioned EFI disk image that the user
+# can directly dd to boot media.
+
+part /boot --source bootimg-efi --sourceparams="loader=${EFI_PROVIDER},initrd=${INITRAMFS_IMAGE}-${MACHINE}.${INITRAMFS_FSTYPES}" --label boot --active --align 1024 --use-uuid
+
+part / --source rootfs --fstype=ext4 --label root --align 1024 --use-uuid
+
+part swap --size 44 --label swap --fstype=swap --use-uuid
+
+bootloader --ptable gpt --timeout=5 --append="rootwait rootfstype=ext4"