From: Chen-Yu Tsai <wens@kernel.org>
To: Chen-Yu Tsai <wens@csie.org>, Jernej Skrabec <jernej@kernel.org>,
Samuel Holland <samuel@sholland.org>,
Andre Przywara <andre.przywara@arm.com>
Cc: linux-sunxi@lists.linux.dev, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] arm64: dts: allwinner: a527: cubie-a5e: Drop external 32.768 KHz crystal
Date: Sat, 13 Sep 2025 18:24:48 +0800 [thread overview]
Message-ID: <20250913102450.3935943-1-wens@kernel.org> (raw)
From: Chen-Yu Tsai <wens@csie.org>
The Radxa Cubie A5E has empty pads for a 32.768 KHz crystal, but it is
left unpopulated, as per the schematics and seen on board images. A dead
give away is the RTC's LOSC auto switch register showing the external
OSC to be abnormal.
Drop the external crystal from the device tree. It was not referenced
anyway.
Fixes: c2520cd032ae ("arm64: dts: allwinner: a523: add Radxa A5E support")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts | 7 -------
1 file changed, 7 deletions(-)
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
index 71074b072184..e333bbaf01d3 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a527-cubie-a5e.dts
@@ -24,13 +24,6 @@ chosen {
stdout-path = "serial0:115200n8";
};
- ext_osc32k: ext-osc32k-clk {
- #clock-cells = <0>;
- compatible = "fixed-clock";
- clock-frequency = <32768>;
- clock-output-names = "ext_osc32k";
- };
-
leds {
compatible = "gpio-leds";
--
2.39.5
next reply other threads:[~2025-09-13 10:25 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-13 10:24 Chen-Yu Tsai [this message]
2025-09-13 10:24 ` [PATCH 2/3] arm64: dts: allwinner: t527: avaota-a1: hook up external 32k crystal Chen-Yu Tsai
2025-09-13 11:31 ` Jernej Škrabec
2025-09-13 10:24 ` [PATCH 3/3] arm64: dts: allwinner: t527: orangepi-4a: " Chen-Yu Tsai
2025-09-13 11:31 ` Jernej Škrabec
2025-09-13 11:30 ` [PATCH 1/3] arm64: dts: allwinner: a527: cubie-a5e: Drop external 32.768 KHz crystal Jernej Škrabec
2025-09-14 16:29 ` Chen-Yu Tsai
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