Hi Anthony,
On 10/3/23 04:34, Anthony Davies via lists.yoctoproject.org wrote:
From: Anthony Davies <[email protected]>
This allows defaults to be set per machine.conf but also allows
overrides in local.conf.
NACK to the whole patch.
??= has a very different behavior than ?= and is weaker than ?=. c.f.
https://elinux.org/images/3/33/YPS2022.05_d1s02_overrides.pdf slides 15
to 20.
DEFAULTTUNE is already weakly set in the tune include files so this
would basically result in a no-op.
I don't understand what your needs are frankly.
local.conf shouldn't be used for changing those things except for
debugging purposes. What I recommend if you need to change those is to
create your own machine configuration file in your own layer which
require the "base" SoC configuration file from meta-rockchip.
e.g.
my-rk3588-device.conf
"""
DEFAULTTUNE = "cortexa76-cortexa55"
require conf/machine/include/rk3588.inc
"""
If you want to reuse an existing machine conf file but only override a
few things, you can also do the same trick:
my-rock-5b-device.conf
"""
DEFAULTTUNE = "cortexa76-cortexa55"
require conf/machine/rock-5b.conf
"""
Finally, if you REALLY have to change it from local.conf, you can use
OVERRIDES, e.g.:
DEFAULTTUNE:rk3588 = "cortexa76-cortexa55"
But I would really recommend against using this.
Can you tell us more about your needs?
Cheers,
Quentin
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