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dts: nordic nrf-timer: Expose max frequency as DT property

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The counter driver needs to know what is the maximum
counting frequency of each timer peripheral.
Let's add it to its DT.

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
This commit is contained in:
Alberto Escolar Piedras 2024-05-06 17:20:45 +02:00 • committed by Anas Nashif
commit 0ecfac663d
3 changed files with 18 additions and 1 deletions
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12
dts/bindings/timer/nordic,nrf-timer.yaml
View file

@ -24,10 +24,20 @@ properties:
interrupts:
required: true
max-frequency:
type: int
default: 16000000
description: |
Maximum timer frequency in Hz.
The default value is 16MHz which was the maximum frequency for all nRF TIMER peripherals
up to the nRF54 series, and still remains the most typical maximum frequency for nRF54
TIMERs.
prescaler:
type: int
required: true
description: Prescaler value determines frequency (base_frequency/2^prescaler)
description: Prescaler value determines frequency (max-frequency/2^prescaler)
zli:
type: boolean

5
dts/common/nordic/nrf54h20.dtsi
View file

@ -217,6 +217,7 @@
cc-num = <8>;
interrupts = <40 NRF_DEFAULT_IRQ_PRIORITY>;
max-bit-width = <32>;
max-frequency = <DT_FREQ_M(32)>;
prescaler = <0>;
};
@ -227,6 +228,7 @@
cc-num = <8>;
interrupts = <41 NRF_DEFAULT_IRQ_PRIORITY>;
max-bit-width = <32>;
max-frequency = <DT_FREQ_M(32)>;
prescaler = <0>;
};
@ -237,6 +239,7 @@
cc-num = <8>;
interrupts = <42 NRF_DEFAULT_IRQ_PRIORITY>;
max-bit-width = <32>;
max-frequency = <DT_FREQ_M(32)>;
prescaler = <0>;
};
@ -369,6 +372,7 @@
cc-num = <6>;
interrupts = <226 NRF_DEFAULT_IRQ_PRIORITY>;
max-bit-width = <32>;
max-frequency = <DT_FREQ_M(320)>;
prescaler = <0>;
};
@ -379,6 +383,7 @@
cc-num = <6>;
interrupts = <227 NRF_DEFAULT_IRQ_PRIORITY>;
max-bit-width = <32>;
max-frequency = <DT_FREQ_M(320)>;
prescaler = <0>;
};

2
dts/common/nordic/nrf54l15.dtsi
View file

@ -212,6 +212,7 @@
cc-num = <6>;
max-bit-width = <32>;
interrupts = <85 NRF_DEFAULT_IRQ_PRIORITY>;
max-frequency = <DT_FREQ_M(128)>;
prescaler = <0>;
};
@ -228,6 +229,7 @@
cc-num = <8>;
max-bit-width = <32>;
interrupts = <133 NRF_DEFAULT_IRQ_PRIORITY>;
max-frequency = <DT_FREQ_M(32)>;
prescaler = <0>;
};