From: Michael Orlitzky <michael@orlitzky.com>
To: sophgo@lists.linux.dev
Subject: Hardware clock on the Pioneer
Date: Tue, 30 Dec 2025 17:56:54 -0500 [thread overview]
Message-ID: <aVRYtrWucN0x4wNm@mertle> (raw)
Hello, I finally have the upstream kernel running on my Pioneer Box,
and I notice that the hardware clock is not enabled. I've patched this
in my own kernel (sg2042-milkv-pioneer.dts) by enabling i2c0, defining
the RTC,
&i2c0 {
pinctrl-0 = <&i2c0_cfg>;
pinctrl-names = "default";
status = "okay";
rtc: rtc@68 {
compatible = "dallas,ds1307";
reg = <0x68>;
};
};
and copying the pinctrl bits from i2c1:
i2c0_cfg: i2c0-cfg {
i2c0-pins {
pinmux = <PINMUX(PIN_IIC0_SDA, 0)>,
<PINMUX(PIN_IIC0_SCL, 0)>;
bias-pull-up;
drive-strength-microamp = <26800>;
input-schmitt-enable;
};
};
It seems to work:
$ sudo hwclock --show
2025-12-30 17:54:05.093606-05:00
Is there a reason not to do this? The sophgo upstream status page says
that the RTC is "Low priority, may not be needed." But if the above is
OK, I will submit a patch for it.
next reply other threads:[~2025-12-30 23:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-30 22:56 Michael Orlitzky [this message]
2026-01-05 0:38 ` Hardware clock on the Pioneer Chen Wang
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