[DistroKit] [PATCH v2 2/4] v8a: kernel: enable initramfs in kernel config

[Johannes Zink <j.zink@pengutronix.de>]

Enable zstd compressed initramfs images for all v8a boards.
This allows to boot an initrd passed to the bootloader without touching
the rootfs on a blockdevice.

Signed-off-by: Johannes Zink <j.zink@pengutronix.de>

---

Changes:

v1 -> v2:
 - as gzip generation was dropped in the previous patch, also drop it in
   the kernel initramfs config. Only zstd is supported for compressed
   initramfs now.
---
 configs/platform-v8a/kernelconfig | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/configs/platform-v8a/kernelconfig b/configs/platform-v8a/kernelconfig
index 3c0fed78de15..090c50b1dc50 100644
--- a/configs/platform-v8a/kernelconfig
+++ b/configs/platform-v8a/kernelconfig
@@ -205,7 +205,15 @@ CONFIG_NET_NS=y
 CONFIG_SCHED_AUTOGROUP=y
 # CONFIG_SYSFS_DEPRECATED is not set
 # CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_RD_ZSTD=y
 # CONFIG_BOOT_CONFIG is not set
 # CONFIG_INITRAMFS_PRESERVE_MTIME is not set
 CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
@@ -6163,9 +6171,9 @@ CONFIG_ZLIB_INFLATE=y
 CONFIG_ZLIB_DEFLATE=y
 CONFIG_LZO_COMPRESS=m
 CONFIG_LZO_DECOMPRESS=m
-CONFIG_ZSTD_COMMON=m
+CONFIG_ZSTD_COMMON=y
 CONFIG_ZSTD_COMPRESS=m
-CONFIG_ZSTD_DECOMPRESS=m
+CONFIG_ZSTD_DECOMPRESS=y
 CONFIG_XZ_DEC=y
 CONFIG_XZ_DEC_X86=y
 CONFIG_XZ_DEC_POWERPC=y
@@ -6176,6 +6184,7 @@ CONFIG_XZ_DEC_SPARC=y
 # CONFIG_XZ_DEC_MICROLZMA is not set
 CONFIG_XZ_DEC_BCJ=y
 # CONFIG_XZ_DEC_TEST is not set
+CONFIG_DECOMPRESS_ZSTD=y
 CONFIG_GENERIC_ALLOCATOR=y
 CONFIG_INTERVAL_TREE=y
 CONFIG_XARRAY_MULTI=y

-- 
2.39.2