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dts: arm: st: wb0: add TRNG node

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Add Device Tree nodes corresponding to TRNG of STM32WB0 series SoCs.

Signed-off-by: Mathieu Choplain <mathieu.choplain@st.com>
This commit is contained in:
Mathieu Choplain 2024-12-16 17:42:32 +01:00 committed by Benjamin Cabé
parent 1afc04441a
commit 77aeaa8ab7
2 changed files with 28 additions and 0 deletions
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16
dts/arm/st/wb0/stm32wb0.dtsi
View file

@ -259,6 +259,22 @@
dma-requests= <25>;
status = "disabled";
};
/**
* This node is valid for STM32WB05, STM32WB06 and
* STM32WB07, all equipped with the same IRQ-less
* TRNG instance. Since all those properties are
* also valid on STM32SWB09, except "compatible",
* we pretend this node is valid for all SoCs of
* the series and clean up in `stm32wb09.dtsi`.
*/
rng: rng@48600000 {
compatible = "st,stm32-rng-noirq";
reg = <0x48600000 DT_SIZE_K(4)>;
clocks = <&rcc STM32_CLOCK(AHB0, 18)>;
generation-delay-ns = <1250>; /* 1.25us */
status = "disabled";
};
};
bt_hci_wb0: bt_hci_wb0 {

12
dts/arm/st/wb0/stm32wb09.dtsi
View file

@ -14,5 +14,17 @@
/ {
soc {
compatible = "st,stm32wb09", "st,stm32wb0", "simple-bus";
rng: rng@48600000 {
/**
* STM32WB09 TRNG has an interrupt line.
* Switch to proper compatible, delete property
* that doesn't apply to it, and add the interrupt
* line as property.
*/
/delete-property/ generation-delay-ns;
compatible = "st,stm32-rng";
interrupts = <28 0>;
};
};
};