dts: rtc: sam0: Add clock properties
Add properties to differentiate the timer counter operating modes. This properties are necessary to spetialize the driver to be used as a normal 16/32-bit counter or to provide the clock/calendar functions. Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit is contained in:
Gerson Fernando Budke
Benjamin Cabé
parent
50a044a33d
commit
fb6079999d
6 changed files with 134 additions and 7 deletions
|
|
@ -1,12 +1,14 @@
|
|||
# Copyright (c) 2014-2015 Wind River Systems, Inc.
|
||||
# Copyright (c) 2016 Cadence Design Systems, Inc.
|
||||
# Copyright (c) 2019 Intel Corp.
|
||||
# Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
# SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
config SAM0_RTC_TIMER
|
||||
bool "Atmel SAM0 series RTC timer"
|
||||
default y
|
||||
depends on DT_HAS_ATMEL_SAM0_RTC_ENABLED
|
||||
depends on DT_HAS_ATMEL_SAM0_RTC_ENABLED \
|
||||
&& $(dt_nodelabel_bool_prop,rtc,systimer)
|
||||
select PINCTRL
|
||||
select TICKLESS_CAPABLE
|
||||
help
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* Copyright (c) 2022 Kamil Serwus
|
||||
* Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
* Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
|
@ -20,6 +20,8 @@
|
|||
port-b = &portb;
|
||||
port-c = &portc;
|
||||
|
||||
rtc = &rtc;
|
||||
|
||||
sercom-0 = &sercom0;
|
||||
sercom-1 = &sercom1;
|
||||
sercom-2 = &sercom2;
|
||||
|
|
@ -274,6 +276,9 @@
|
|||
atmel,assigned-clocks = <&osc32kctrl 0>;
|
||||
atmel,assigned-clock-names = "OSC32KCTRL";
|
||||
status = "disabled";
|
||||
|
||||
alarms-count = <1>;
|
||||
cal-constant = <(4096 * 240)>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* Copyright (c) 2017 Google LLC.
|
||||
* Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
* Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
|
@ -19,6 +19,8 @@
|
|||
port-a = &porta;
|
||||
port-b = &portb;
|
||||
|
||||
rtc = &rtc;
|
||||
|
||||
sercom-0 = &sercom0;
|
||||
sercom-1 = &sercom1;
|
||||
sercom-2 = &sercom2;
|
||||
|
|
@ -189,7 +191,12 @@
|
|||
compatible = "atmel,sam0-rtc";
|
||||
reg = <0x40001400 0x1C>;
|
||||
interrupts = <3 0>;
|
||||
clocks = <&gclk 4 4>, <&pm 0x18 5>;
|
||||
clock-names = "GCLK", "PM";
|
||||
status = "disabled";
|
||||
|
||||
alarms-count = <1>;
|
||||
cal-constant = <(1024 * 976)>;
|
||||
};
|
||||
|
||||
adc: adc@42004000 {
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* Copyright (c) 2019 ML!PA Consulting GmbH
|
||||
* Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
* Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
|
@ -21,6 +21,8 @@
|
|||
port-c = &portc;
|
||||
port-d = &portd;
|
||||
|
||||
rtc = &rtc;
|
||||
|
||||
sercom-0 = &sercom0;
|
||||
sercom-1 = &sercom1;
|
||||
sercom-2 = &sercom2;
|
||||
|
|
@ -45,6 +47,7 @@
|
|||
};
|
||||
|
||||
chosen {
|
||||
zephyr,flash-controller = &nvmctrl;
|
||||
zephyr,entropy = &trng;
|
||||
zephyr,flash-controller = &nvmctrl;
|
||||
};
|
||||
|
|
@ -331,6 +334,9 @@
|
|||
atmel,assigned-clocks = <&osc32kctrl 0>;
|
||||
atmel,assigned-clock-names = "OSC32KCTRL";
|
||||
status = "disabled";
|
||||
|
||||
alarms-count = <2>;
|
||||
cal-constant = <(8192 * 128)>;
|
||||
};
|
||||
|
||||
adc0: adc@43001c00 {
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
/*
|
||||
* Copyright (c) 2021 Argentum Systems Ltd.
|
||||
* Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
* Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
*
|
||||
* SPDX-License-Identifier: Apache-2.0
|
||||
*/
|
||||
|
|
@ -26,6 +26,8 @@
|
|||
sercom-4 = &sercom4;
|
||||
sercom-5 = &sercom5;
|
||||
|
||||
rtc = &rtc;
|
||||
|
||||
tc-4 = &tc4;
|
||||
|
||||
watchdog0 = &wdog;
|
||||
|
|
@ -203,6 +205,9 @@
|
|||
atmel,assigned-clocks = <&osc32kctrl 0>;
|
||||
atmel,assigned-clock-names = "OSC32KCTRL";
|
||||
status = "disabled";
|
||||
|
||||
alarms-count = <1>;
|
||||
cal-constant = <(8192 * 128)>;
|
||||
};
|
||||
|
||||
adc: adc@43000c00 {
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
# Copyright (c) 2018 omSquare s.r.o.
|
||||
# Copyright (c) 2024 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
# Copyright (c) 2024-2025 Gerson Fernando Budke <nandojve@gmail.com>
|
||||
# SPDX-License-Identifier: Apache-2.0
|
||||
|
||||
description: Atmel SAM0 RTC
|
||||
|
|
@ -7,7 +7,7 @@ description: Atmel SAM0 RTC
|
|||
compatible: "atmel,sam0-rtc"
|
||||
|
||||
include:
|
||||
- name: rtc.yaml
|
||||
- name: rtc-device.yaml
|
||||
- name: pinctrl-device.yaml
|
||||
- name: atmel,assigned-clocks.yaml
|
||||
|
||||
|
|
@ -26,3 +26,105 @@ properties:
|
|||
|
||||
atmel,assigned-clock-names:
|
||||
required: true
|
||||
|
||||
systimer:
|
||||
type: boolean
|
||||
description: |
|
||||
Selects RTC peripheral to be used as a system timer and replace
|
||||
the ARM systick. When this option is selected the normal RTC
|
||||
functionality is in exclusive mode and the normal RTC functions
|
||||
will not be available.
|
||||
|
||||
The systimer exclusive functionality can be enabled using the
|
||||
following devicetree entry:
|
||||
|
||||
&rtc {
|
||||
status = "okay";
|
||||
systimer;
|
||||
};
|
||||
|
||||
cal-constant:
|
||||
type: int
|
||||
required: true
|
||||
description: |
|
||||
Define the constant used to calculate the calibration. More
|
||||
information can be found in the datasheet of each SoC series
|
||||
at RTC Frequency Correction topic.
|
||||
|
||||
Example:
|
||||
Correction in ppm = (FREQCORR.VALUE * 1e6 ppm) / (8192 * 128)
|
||||
|
||||
&rtc {
|
||||
cal-constant = <8192 * 128>;
|
||||
};
|
||||
|
||||
counter-mode:
|
||||
type: string
|
||||
enum:
|
||||
- "count-32"
|
||||
- "count-16"
|
||||
- "clock"
|
||||
description: |
|
||||
Configure the RTC counter operating mode. In mode 0, the counter
|
||||
register is configured as a 32-bit counter. In mode 1, simmilar
|
||||
to mode 0, the counter register is only 16-bit counter. In mode
|
||||
2 the counter register is configured as a clock/calendar.
|
||||
|
||||
&rtc {
|
||||
status = "okay";
|
||||
counter-mode = "clock";
|
||||
prescaler = <1024>;
|
||||
};
|
||||
|
||||
prescaler:
|
||||
type: int
|
||||
enum:
|
||||
- 1
|
||||
- 2
|
||||
- 4
|
||||
- 8
|
||||
- 16
|
||||
- 32
|
||||
- 64
|
||||
- 128
|
||||
- 256
|
||||
- 512
|
||||
- 1024
|
||||
description: |
|
||||
Enable CLKOUT at given frequency. When disabled, CLKOUT pin is LOW.
|
||||
The default is 0 and corresponds to the disable the CLKOUT signal.
|
||||
|
||||
&rtc {
|
||||
status = "okay";
|
||||
counter-mode = "clock";
|
||||
prescaler = <1024>;
|
||||
};
|
||||
|
||||
event-control-msk:
|
||||
type: int
|
||||
default: 0
|
||||
description: |
|
||||
Enable peripheral event sources by bitmask. By default all the channels
|
||||
are always disabled.
|
||||
|
||||
Event Table:
|
||||
|
||||
bit Event Source
|
||||
0 Periodic Interval 0 Event Output
|
||||
1 Periodic Interval 1 Event Output
|
||||
2 Periodic Interval 2 Event Output
|
||||
3 Periodic Interval 3 Event Output
|
||||
4 Periodic Interval 4 Event Output
|
||||
5 Periodic Interval 5 Event Output
|
||||
6 Periodic Interval 6 Event Output
|
||||
7 Periodic Interval 7 Event Output
|
||||
8 Compare/Alarm 0 Event Output
|
||||
9 Compare/Alarm 1 Event Output
|
||||
14 Tamper Event Output
|
||||
15 Overflow Event Output
|
||||
16 Tamper Event Input
|
||||
|
||||
Example how to enable Compare/Alarm 0 Event Output:
|
||||
&rtc {
|
||||
event-control-msk = <100>;
|
||||
};
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue