This is an alignment with Linux DT files that have been merged in
stm32 tree [1], and will be in Linux 6.7.
The /omit-if-no-ref/ in overlay files are now removed, as already in
pinctrl files.
[1] https://git.kernel.org/pub/scm/linux/kernel/git/atorgue/stm32.git
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Iab94b0ba7a4a0288ca53d1ae57ab590566967415
To keep (as much as possible) alignment with Linux DT, move the
/omit-if-no-ref/ keywords to DT overlay files (fdts/stm32mp1*-bl*.dtsi).
This also ease checks for ST tools.
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Change-Id: Ib467a6b65f05a84c9678799ad32e1820249b4ed1
Use /omit-if-no-ref/ keyword in DT to remove extra device nodes only
when they are not used / not referenced.
If the board device tree only defines subnodes, dtc does not consider it
as usage, you have to specifically mention device's phandle, e.g.:
\ {
i2c6-phandle = <&i2c6>;
};
or in aliases section
aliases {
i2c6 = &i2c6;
};
Signed-off-by: Vyacheslav Yurkov <uvv.mail@gmail.com>
Change-Id: I431ecd93576f97fd021d82d23b93c659fc8f26b8
With the /omit-if-no-ref/ keyword in DT, the non-referenced nodes
are just removed. This allows reducing the size of device tree blobs.
Setting it before pins node allows a size reduction of more than 2kB.
The corresponding nodes can also be removed from BL2 and BL32 DT
overlays.
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: I6b4a4d227d5592e1d253a1b35da2dafaac2ddcae
Due to commit updating kernel yaml file [1], we need to align TF-A DT
files to what is done in kernel.
[1] c09acbc499e8 ("dt-bindings: pinctrl: use pinctrl.yaml")
Signed-off-by: Yann Gautier <yann.gautier@st.com>
Change-Id: Id717162e42d3959339d6c01883e87a9d4399f5d9
BL2 still uses the STM32 header binary format to be loaded from ROM code.
BL32 and BL33 and their respective device tree files are now put together
in a FIP file.
One DTB is created for each BL. To reduce their sizes, 2 new dtsi file are
in charge of removing useless nodes for a given BL. This is done because
BL2 and BL32 share the same device tree files base.
The previous way of booting is still available, the compilation flag
STM32MP_USE_STM32IMAGE has to be set to 1 in the make command. Some files
are duplicated and their names modified with _stm32_ to avoid too much
switches in the code.
Change-Id: I1ffada0af58486d4cf6044511b51e56b52269817
Signed-off-by: Lionel Debieve <lionel.debieve@st.com>
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
