Based on the existing documentation [1][2], I dare anyone to demonstrate that
we need to fine-tune these RCU parameters. The (performance) breakage potential
for doing so is immense, so let's just please put down this loaded footgun.
Disable CONFIG_RCU_EXPERT and its dependent symbols. Additionally, remove the
CONFIG_RCU_EXPERT symbol from the target kconfigs which contain it.
[1] https://www.kernel.org/doc/Documentation/RCU/Design/Data-Structures/Data-Structures.html
[2] https://lwn.net/Articles/777214/
Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com>
Built clock drivers for G3DSYS and AUDSYS into the kernel to allow
multimedia features (GPU and audio) to work if they exist.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Backport support for dual-role USB 2.0 as that's what is actually
built-into MT7623.
Improve HDMI console by enabling VT and setting up tty1..tty6.
Re-add accidentally removed CONFIG_ARM_ARCH_TIMER.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
In order to make HDMI console available on the BananaPi BPi-R2 select
various Kconfig symbols which are useful for systems with graphics.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
* introduce recovery (=initramfs) vs. production dual boot scheme
* make use of uImage.FIT (instead of FAT partition)
* generate images using build steps (instead of external scripts)
* simplify sysupgrade and config restore (thanks to uImage.FIT)
* make sure mmc devices are ordered persistently (set DT aliases)
This commit breaks sysupgrade from existing installations, you will
have to re-install using the sdcard.img.gz image.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Update Kernel config and set Linux 5.10 for mediatek/mt7623.
(patches have already been updated to 5.10 when mt7622 was bumped)
Tested on Bananapi BPi-R2.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
