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drivers: usb: udc: change numaker m46x usbd clock source to hirc48m

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Change NuMaker M463/M467 series USBD clock source to HIRC48M.
This makes core-clock and its clock source PLL not required
to be multiple of 48MHz.

Signed-off-by: Chun-Chieh Li <ccli8@nuvoton.com>
This commit is contained in:
Chun-Chieh Li 2024-07-30 14:56:13 +08:00 • committed by Anas Nashif
commit 9cf4e1aae5
2 changed files with 4 additions and 5 deletions
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4
boards/nuvoton/numaker_pfm_m467/numaker_pfm_m467.dts
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@ -65,8 +65,6 @@
};
&scc {
/* For USB 1.1 Host/Device/OTG, configure to 192MHz, which can generate necessary 48MHz. */
/* For USB 2.0 Host/Device/OTG or no USB application, comment out to use default. */
core-clock = <192000000>;
};
@ -122,7 +120,7 @@
status = "okay";
};
/* On enabled, 'core-clock', as above, is required to be 192MHz. */
/* On enabled, usbd is required to be clocked in 48MHz. */
zephyr_udc0: &usbd {
pinctrl-0 = <&usbd_default>;
pinctrl-names = "default";