threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
42 lines
1.3 KiB
Plaintext
42 lines
1.3 KiB
Plaintext
STMicroelectronics Co-Processor Bindings
|
|
----------------------------------------
|
|
|
|
This binding provides support for adjunct processors found on ST SoCs.
|
|
|
|
Co-processors can be controlled from the bootloader or the primary OS. If
|
|
the bootloader starts a co-processor, the primary OS must detect its state
|
|
and act accordingly.
|
|
|
|
Required properties:
|
|
- compatible Should be one of:
|
|
"st,st231-rproc"
|
|
"st,st40-rproc"
|
|
- memory-region Reserved memory (See: ../reserved-memory/reserved-memory.txt)
|
|
- resets Reset lines (See: ../reset/reset.txt)
|
|
- reset-names Must be "sw_reset" and "pwr_reset"
|
|
- clocks Clock for co-processor (See: ../clock/clock-bindings.txt)
|
|
- clock-frequency Clock frequency to set co-processor at if the bootloader
|
|
hasn't already done so
|
|
- st,syscfg System configuration register which holds the boot vector
|
|
for the co-processor
|
|
1st cell: Phandle to syscon block
|
|
2nd cell: Boot vector register offset
|
|
|
|
Example:
|
|
|
|
audio_reserved: rproc@42000000 {
|
|
compatible = "shared-dma-pool";
|
|
reg = <0x42000000 0x01000000>;
|
|
no-map;
|
|
};
|
|
|
|
st231-audio {
|
|
compatible = "st,st231-rproc";
|
|
memory-region = <&audio_reserved>;
|
|
resets = <&softreset STIH407_ST231_AUD_SOFTRESET>;
|
|
reset-names = "sw_reset";
|
|
clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
|
|
clock-frequency = <600000000>;
|
|
st,syscfg = <&syscfg_core 0x228>;
|
|
};
|