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Joachim Wiberg
6994e5dd63
Calling tune2fs for ext4 partitions at boot costs more than one second boot time on 32-bit Arm systems, with very little gain. Dropping this restores the default periodic fsck *and* saves boot time. Instead of calling sgdisk four times, call it only when resizing and instead use sysfs to find named paritions. Saves seconds on boards with weaker CPU and slow media. Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Board Support
The board support for an architecture always starts with Qemu support,
this is what each linux_defconfig at the very least sets up. Then
each $BR2_ARCH has additional BSPs, e.g., Banana Pi BPI-R3.
The board/ directory is matched with the configs/*_defconfigs and
the only execption is board/common/, which holds all shared files for
Infix builds.
Each board/$BR2_ARCH/ can then have vendor/product sub-directories
for the BSPs which may contain "fixups" to the base kernel config and
any additional device tree files that should be included as well.
To rebuild a board-specific package, e.g. NanoPi R2S:
make friendlyarm-nanopi-r2s-rebuild all