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machine/corstone1000: Add Cortex‑A320 support

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Enable the Corstone‑1000 Cortex‑A320 variant by:

- Introduce `machine/include/corstone1000-a320.inc` to configure the
  default Ethos‑U MAC count when `cortexa320` is in MACHINE_FEATURES,
  and allow override via `ETHOSU_NUM_MACS`.
- Add a KAS profile at `kas/corstone1000-a320.yml` for Cortex‑A320
  FVP-based builds.
- Extend corstone1000.inc to detect MACHINE_FEATURES (cortexa320) and
  pull in the matching tune-<core>.inc (default still Cortex-A35).
- Add the `meta-ethos` layer as a dependency of `meta-arm-bsp` for
  Cortex‑A320 builds and define a new KMachine override to pull in
  the Ethos‑U driver recipe.
- In `conf/machine/corstone1000-fvp.conf`, inspect `MACHINE_FEATURES`
  and set `FVP_EXE` to `FVP_Corstone-1000_with_Cortex-A320` when
  `cortexa320` is enabled, otherwise fall back to `FVP_Corstone-1000`.
- In `recipes-devtools/fvp/fvp-corstone1000.bb`, add a
  `SRC_URI:cortexa320` entry (with checksums) for the Cortex‑A320 FVP
  build archive.
- Disable the rootfs CPIO file compression so it is not compressed
  twice when bundled with the kernel

Signed-off-by: Michael Safwat <michael.safwat@arm.com>
Signed-off-by: Frazer Carsley <frazer.carsley@arm.com>
Signed-off-by: Hugues KAMBA MPIANA <hugues.kambampiana@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Hugues KAMBA MPIANA
2025-12-04 15:19:48 +00:00
committed by Jon Mason
parent 108053c964
commit b6b1a81f5e
8 changed files with 70 additions and 8 deletions
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meta-arm-bsp/recipes-kernel/linux/files/corstone1000/defconfig
+1
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@@ -122,3 +122,4 @@ CONFIG_EXT4_FS=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
# CONFIG_EXT4_DEBUG is not set
CONFIG_INITRAMFS_COMPRESSION_NONE=y
meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc
+20 -2
View File
@@ -24,8 +24,6 @@ COMPATIBLE_MACHINE:corstone1000 = "${MACHINE}"
KCONFIG_MODE:corstone1000 = "--alldefconfig"
KMACHINE:corstone1000 = "corstone1000"
LINUX_KERNEL_TYPE:corstone1000 = "standard"
#disabling the rootfs cpio file compression so it is not compressed twice when bundled with the kernel
KERNEL_EXTRA_ARGS:corstone1000 += "CONFIG_INITRAMFS_COMPRESSION_NONE=y"
SRC_URI:append:corstone1000 = " \
file://defconfig \
"
@@ -57,6 +55,26 @@ SRC_URI:append:corstone1000 = " \
KERNEL_EXTRA_FEATURES:corstone1000 = ""
KERNEL_FEATURES:corstone1000 = ""
#
# Corstone1000 with CORTEX-A320 KMACHINE
#
FILESEXTRAPATHS:prepend:cortexa320 := "${ARMBSPFILESPATHS}"
COMPATIBLE_MACHINE:corstone1000:cortexa320 = "${MACHINE}"
KCONFIG_MODE:corstone1000:cortexa320 = "--alldefconfig"
KMACHINE:corstone1000:cortexa320 = "corstone1000-a320"
LINUX_KERNEL_TYPE:corstone1000:cortexa320 = "standard"
SRC_URI:append:corstone1000:cortexa320 = " \
file://defconfig \
"
# Default kernel features not needed for Corstone-1000 with
# Cortex-A320; otherwise the extra kernel modules will
# increase the rootfs size but the board has limited flash
# memory constraints
KERNEL_EXTRA_FEATURES:corstone1000:cortexa320 = ""
KERNEL_FEATURES:corstone1000:cortexa320 = ""
#
# FVP BASE KMACHINE
#