Mainline:Broadcom Kona/USB PHY (HSOTGCTRL)

Knuxify — Tue, 07 Jul 2026 05:48:38 GMT

← Older revision		Revision as of 07:48, 7 July 2026
Line 1:		Line 1:
	'''HSOTGCTRL''' is the USB2 PHY used in Broadcom Kona chips.		'''HSOTGCTRL''' is the USB2 PHY used in Broadcom Kona chips.

			== Drivers ==

			=== Downstream ===

			Split into two parts:

			* {{downstream\|baffinlite\|arch/arm/plat-kona/bcm-hsotgctrl.c}} which handles all HSOTGCTRL functions;
			** {{downstream\|baffinlite\|arch/arm/plat-kona/bcm-hsotgctrl-phy-mdio.c}} which specifically has [[#MDIO]] setup
			* {{downstream\|baffinlite\|drivers/usb/otg/bcmpmu59xxx_otg_xceiv.c}} which hooks into Linux's USB PHY API, calls the HSOTGCTRL functions and also handles some PMU-related bits of the process (mostly related to VBUS control)

			=== Mainline ===

			The mainline driver uses the generic PHY framework; it is located in <code>drivers/phy/broadcom/phy-bcm-kona-usb2.c</code>.

	== MDIO ==		== MDIO ==

dissonant.dev wiki - Recent changes [en]