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ARM: dts: microchip: sam9x60: Fix rtc/rtt clocks

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The RTC and RTT peripherals use the timing domain slow clock (TD_SLCK),
sourced from the 32.768 kHz crystal oscillator or slow rc oscillator.

The previously used Monitoring domain slow clock (MD_SLCK) is sourced
from an internal RC oscillator which is most probably not precise enough
for real time clock purposes.

Fixes: 1e5f532c27 ("ARM: dts: at91: sam9x60: add device tree for soc and board")
Fixes: 5f6b33f463 ("ARM: dts: sam9x60: add rtt")
Signed-off-by: Alexander Dahl <ada@thorsis.com>
Link: https://lore.kernel.org/r/20240821055136.6858-1-ada@thorsis.com
[claudiu.beznea: removed () around the last commit description paragraph,
 removed " in front of "timing domain slow clock", described that
 TD_SLCK can also be sourced from slow rc oscillator]
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
This commit is contained in:
Alexander Dahl 2024-08-21 07:51:36 +02:00 committed by Claudiu Beznea
parent bef17a417c
commit d355c895fa
1 changed files with 2 additions and 2 deletions
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4
arch/arm/boot/dts/microchip/sam9x60.dtsi
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@ -1338,7 +1338,7 @@ rtt: rtc@fffffe20 {
compatible = "microchip,sam9x60-rtt", "atmel,at91sam9260-rtt";
reg = <0xfffffe20 0x20>;
interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
clocks = <&clk32k 0>;
clocks = <&clk32k 1>;
};
pit: timer@fffffe40 {
@ -1364,7 +1364,7 @@ rtc: rtc@fffffea8 {
compatible = "microchip,sam9x60-rtc", "atmel,at91sam9x5-rtc";
reg = <0xfffffea8 0x100>;
interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
clocks = <&clk32k 0>;
clocks = <&clk32k 1>;
};
watchdog: watchdog@ffffff80 {