Hello,
On 12/22/22 11:30, Krzysztof Kozlowski wrote:
On 21/12/2022 18:30, Gatien Chevallier wrote:
The STM32 System Bus is an internal bus on which devices are connected.
ETZPC is a peripheral overseeing the firewall bus that configures
and control access to the peripherals connected on it.
For more information on which peripheral is securable, please read
the STM32MP15 reference manual.
Signed-off-by: Gatien Chevallier <gatien.chevallier@xxxxxxxxxxx>
---
arch/arm/boot/dts/stm32mp151.dtsi | 2737 +++++++++++++++--------------
1 file changed, 1406 insertions(+), 1331 deletions(-)
- lptimer1: timer@40009000 {
+ etzpc: etzpc@5c007000 {
Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation
Will change to etzpc: bus@5c007000 in V3
+ compatible = "st,stm32mp15-sys-bus";
+ reg = <0x5c007000 0x400>;
#address-cells = <1>;
- #size-cells = <0>;
- compatible = "st,stm32-lptimer";
- reg = <0x40009000 0x400>;
- interrupts-extended = <&exti 47 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&rcc LPTIM1_K>;
- clock-names = "mux";
- wakeup-source;
- status = "disabled";
Why entire bus is disabled? What resources do you miss?
Here, I did not want to modify the status of the nodes in the device
tree. Nodes that are default enabled in the SoC device tree stay enabled
and vice-versa. IMO think this patch should not include these kind of
changes in its scope. I describe the bus and the peripherals connected
to it, nothing more :)
+ #size-cells = <1>;
+ feature-domain-controller;
+ #feature-domain-cells = <2>;
+ ranges;
Best regards,
Krzysztof
Best regards,
Gatien
