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drivers: rtc: sam0: Add RTC calendar driver and clock fixes #81819

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drivers: rtc: sam0: Add RTC calendar driver and clock fixes #81819

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c7d1018
devicetree: Introduce assigned-clock property
nandojve Nov 9, 2024
c567e01
clocks: atmel: sam0: Fix gclk and mclk clock bindings
nandojve Nov 9, 2024
7afb3b7
dts: rtc: sam0: Add clock properties
nandojve Nov 1, 2024
0cc753f
soc: atmel: sam0: Configure GCLK[4] to RTC
nandojve Nov 1, 2024
cc9aa9f
drivers: rtc: sam0: Add realtime clock driver
nandojve Nov 17, 2024
fabf544
boards: atmel: sam0: Add rtc configs
nandojve Nov 17, 2024
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8 changes: 8 additions & 0 deletions boards/atmel/sam0/samc21n_xpro/samc21n_xpro.dts
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Expand Up @@ -82,6 +82,14 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;

assigned-clocks = <&osc32kctrl 4>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-uart";
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1 change: 1 addition & 0 deletions boards/atmel/sam0/samc21n_xpro/samc21n_xpro.yaml
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Expand Up @@ -18,6 +18,7 @@ supported:
- gpio
- i2c
- pwm
- rtc
- spi
- uart
vendor: atmel
6 changes: 6 additions & 0 deletions boards/atmel/sam0/samd20_xpro/samd20_xpro.dts
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Expand Up @@ -51,6 +51,12 @@
clock-frequency = <DT_FREQ_M(48)>;
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-spi";
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5 changes: 4 additions & 1 deletion boards/atmel/sam0/samd20_xpro/samd20_xpro.yaml
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Original file line number Diff line number Diff line change
@@ -1,3 +1,6 @@
# Copyright (c) 2024 Gerson Fernando Budke <[email protected]>
# SPDX-License-Identifier: Apache-2.0

identifier: samd20_xpro
name: SAM D20 Xplained Pro
type: mcu
Expand All @@ -9,10 +12,10 @@ toolchain:
flash: 256
ram: 32
supported:
- adc
- flash
- gpio
- i2c
- rtc
- spi
- uart
- watchdog
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6 changes: 6 additions & 0 deletions boards/atmel/sam0/samd21_xpro/samd21_xpro.dts
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Expand Up @@ -71,6 +71,12 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-uart";
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2 changes: 1 addition & 1 deletion boards/atmel/sam0/samd21_xpro/samd21_xpro.yaml
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Expand Up @@ -12,12 +12,12 @@ toolchain:
flash: 256
ram: 32
supported:
- adc
- counter
- dma
- gpio
- i2c
- pwm
- rtc
- spi
- uart
- usb_device
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8 changes: 8 additions & 0 deletions boards/atmel/sam0/same54_xpro/same54_xpro.dts
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Expand Up @@ -68,6 +68,14 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;

assigned-clocks = <&osc32kctrl 4>;
};

&sercom2 {
status = "okay";
compatible = "atmel,sam0-uart";
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1 change: 1 addition & 0 deletions boards/atmel/sam0/same54_xpro/same54_xpro.yaml
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Expand Up @@ -18,6 +18,7 @@ supported:
- i2c
- netif:eth
- pwm
- rtc
- spi
- uart
- usb_device
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8 changes: 8 additions & 0 deletions boards/atmel/sam0/saml21_xpro/saml21_xpro.dts
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Expand Up @@ -71,6 +71,14 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;

assigned-clocks = <&osc32kctrl 4>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-spi";
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1 change: 1 addition & 0 deletions boards/atmel/sam0/saml21_xpro/saml21_xpro.yaml
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Expand Up @@ -18,6 +18,7 @@ supported:
- gpio
- i2c
- pwm
- rtc
- spi
- uart
- usb_device
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8 changes: 7 additions & 1 deletion boards/atmel/sam0/samr21_xpro/samr21_xpro-pinctrl.dtsi
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@@ -1,11 +1,17 @@
/*
* Copyright (c) 2022, Gerson Fernando Budke <[email protected]>
* Copyright (c) 2022-2024, Gerson Fernando Budke <[email protected]>
* SPDX-License-Identifier: Apache-2.0
*/

#include <dt-bindings/pinctrl/samr21g-pinctrl.h>

&pinctrl {
adc_default: adc_default {
group1 {
pinmux = <PA6B_ADC_AIN6>;
};
};

pwm_default: pwm_default {
group1 {
pinmux = <PA19F_TCC0_WO3>;
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12 changes: 12 additions & 0 deletions boards/atmel/sam0/samr21_xpro/samr21_xpro.dts
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Expand Up @@ -106,6 +106,12 @@
clock-frequency = <48000000>;
};

&adc {
status = "okay";
pinctrl-0 = <&adc_default>;
pinctrl-names = "default";
};

&tcc0 {
status = "okay";
compatible = "atmel,sam0-tcc-pwm";
Expand All @@ -116,6 +122,12 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-uart";
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2 changes: 2 additions & 0 deletions boards/atmel/sam0/samr21_xpro/samr21_xpro.yaml
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
# Copyright (c) 2019 Benjamin Valentin
# Copyright (c) 2019-2024 Gerson Fernando Budke
# SPDX-License-Identifier: Apache-2.0

identifier: samr21_xpro
name: SAM R21 Xplained Pro
type: mcu
Expand All @@ -18,6 +19,7 @@ supported:
- i2c
- netif
- pwm
- rtc
- spi
- uart
- usb_device
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8 changes: 8 additions & 0 deletions boards/atmel/sam0/samr34_xpro/samr34_xpro.dts
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Expand Up @@ -71,6 +71,14 @@
pinctrl-names = "default";
};

&rtc {
status = "okay";
counter-mode = "clock";
prescaler = <1024>;

assigned-clocks = <&osc32kctrl 4>;
};

&sercom0 {
status = "okay";
compatible = "atmel,sam0-uart";
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1 change: 1 addition & 0 deletions boards/atmel/sam0/samr34_xpro/samr34_xpro.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ supported:
- gpio
- i2c
- pwm
- rtc
- spi
- uart
- usb_device
Expand Down
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