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charset="utf-8" Add dt-binding of JHB100 server host field USB device controller PHY adapter register IO region and its regs-name. Signed-off-by: Minda Chen --- .../devicetree/bindings/usb/starfive,jhb100-dwc3.yaml | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yam= l b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml index fbabe99e9d5c..b2fd98c06ba0 100644 --- a/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml @@ -20,7 +20,16 @@ properties: const: starfive,jhb100-dwc3 =20 reg: - maxItems: 1 + minItems: 1 + items: + - description: Core DWC3 region + - description: DWC3 device controller adapter region + + reg-names: + minItems: 1 + items: + - const: core + - const: adapter =20 interrupts: maxItems: 1 --=20 2.17.1 From nobody Fri Sep 25 01:19:23 2026 Received: from CHN02-SH0-obe.outbound.protection.partner.outlook.cn (mail-sh0chn02on2118.outbound.protection.partner.outlook.cn [139.219.146.118]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0688049D5AB; 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charset="utf-8" StarFive JHB100 server host virtual device controller do not connect with PHY but connect with digital adapter module. So it do not contain core reference clock. So the minimal clock number is 2 (glue layer main enable clock and dwc3 core bus clk). So Add minItem 2 to clock and clock-names items. Signed-off-by: Minda Chen --- Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yam= l b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml index b2fd98c06ba0..3d0c248dee71 100644 --- a/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml @@ -35,12 +35,14 @@ properties: maxItems: 1 =20 clocks: + minItems: 2 items: - description: USB main enable clk - description: DWC3 bus early clock - description: DWC3 ref clock =20 clock-names: + minItems: 2 items: - const: main - const: bus_early --=20 2.17.1 From nobody Fri Sep 25 01:19:23 2026 Received: from CHN02-SH0-obe.outbound.protection.partner.outlook.cn (mail-sh0chn02on2118.outbound.protection.partner.outlook.cn [139.219.146.118]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3840349F10A; 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charset="utf-8" Add PHY or PHY adapter iomem field in struct dwc3_gerneric for dwc3 generic platform to add PHY/PHY adapter setting. Also Add Starfive JHB100 USB 2.0 device controller generic init function to remap PHY adapter io memory region and add adapter pre-run/stop function. JHB100 BMC soc contains Synopsys dwc3 multi-port host controller. And export its xhci controller to host server through PCIe. xhci contains 8 ports and each connect with one dwc3 device controller through an PHY adapter. Server host USB subsystem includes one multi-port dwc3 USB host, multiple dwc3 device controllers and their adapters. While USB adapter 2.0 enable bit is set, the connect status bit of xhci port stat register will be asserted. If the usb enumeration is not ready for USB gadget, The xhci will fail with enumerate usb device. So The JHB100 USB device controller adapter require to set/clear USB 2.0 port enable while usb gadget start/stop usb device enumeration. This can be treated as a hardware quirk. Signed-off-by: Minda Chen --- drivers/usb/dwc3/dwc3-generic-plat.c | 47 +++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-g= eneric-plat.c index ca69ac0eb07c..e3394205a519 100644 --- a/drivers/usb/dwc3/dwc3-generic-plat.c +++ b/drivers/usb/dwc3/dwc3-generic-plat.c @@ -22,12 +22,15 @@ #define EIC7700_HSP_AXI_LP_XM_CSYSREQ BIT(0) #define EIC7700_HSP_AXI_LP_XS_CSYSREQ BIT(16) =20 +#define JHB100_ADAPTER_PORT_EN BIT(20) + struct dwc3_generic { struct device *dev; struct dwc3 dwc; struct clk_bulk_data *clks; int num_clocks; struct reset_control *resets; + void __iomem *phy_regs; /* PHY or PHY adapter regs */ }; =20 struct dwc3_generic_config { @@ -42,6 +45,43 @@ static void dwc3_generic_reset_control_assert(void *data) reset_control_assert(data); } =20 +static void dwc3_jhb100_pre_run_stop(struct dwc3 *dwc3, bool start) +{ + struct dwc3_generic *data =3D to_dwc3_generic(dwc3); + u32 val; + + if (start) { + val =3D readl(data->phy_regs); + val |=3D JHB100_ADAPTER_PORT_EN; + writel(val, data->phy_regs); + } else { + val =3D readl(data->phy_regs); + val &=3D ~JHB100_ADAPTER_PORT_EN; + writel(val, data->phy_regs); + } +} + +struct dwc3_glue_ops jhb100_glue_ops =3D { + .pre_run_stop =3D dwc3_jhb100_pre_run_stop, +}; + +static int dwc3_jhb100_init(struct dwc3_generic *dwc3g) +{ + struct platform_device *pdev =3D to_platform_device(dwc3g->dev); + + dwc3g->phy_regs =3D devm_platform_ioremap_resource_byname(pdev, "adapter"= ); + if (IS_ERR(dwc3g->phy_regs)) { + dwc3g->phy_regs =3D NULL; + /* Generic bmc USB with PHY*/ + return 0; + } + + /* usb device controller with adapter */ + dwc3g->dwc.glue_ops =3D &jhb100_glue_ops; + + return 0; +} + static int dwc3_eic7700_init(struct dwc3_generic *dwc3g) { struct device *dev =3D dwc3g->dev; @@ -231,12 +271,17 @@ static const struct dwc3_generic_config eic7700_dwc3 = =3D { .properties =3D DWC3_DEFAULT_PROPERTIES, }; =20 +static const struct dwc3_generic_config jhb100_dwc3 =3D { + .init =3D dwc3_jhb100_init, + .properties =3D DWC3_DEFAULT_PROPERTIES, +}; + static const struct of_device_id dwc3_generic_of_match[] =3D { { .compatible =3D "spacemit,k1-dwc3", &spacemit_k1_dwc3}, { .compatible =3D "spacemit,k3-dwc3", }, { .compatible =3D "fsl,ls1028a-dwc3", &fsl_ls1028_dwc3}, { .compatible =3D "eswin,eic7700-dwc3", &eic7700_dwc3}, - { .compatible =3D "starfive,jhb100-dwc3", }, + { .compatible =3D "starfive,jhb100-dwc3", &jhb100_dwc3}, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, dwc3_generic_of_match); --=20 2.17.1