[PATCH v1 0/2] Add StarFive JHB100 soc BMC DRD USB support

[PATCH v1 0/2] Add StarFive JHB100 soc BMC DRD USB support

[Minda Chen]

JHB100 is a Starfive new RISC-V SoC for datacenter BMC (Baseboard
Managent Controller). Similar with Aspeed 27x0.

The JHB100 minimal system upstream is in progress:
https://patchwork.kernel.org/project/linux-riscv/cover/20260403054945.467700-1-changhuang.liang@starfivetech.com/

JHB100 contain 2 USB 2.0 dwc3 USB port, and intergrated with USB
2.0 PHY. These 2 ports just for BMC soc use. Actually JHB100 contain
other dwc3 usb controllers, which is using as xhci over PCIe and locate
in PCIe EP. It is working for host server. But now PCIe EP driver is not
in upstream progress. So just commit BMC USB 2.0 port driver patches to
upstream first.

The patch base in V7.0-rc5

Minda Chen (2):
  dt-bindings: usb: dwc3: add support for StarFive JHB100
  usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller

 .../bindings/usb/starfive,jhb100-dwc3.yaml    | 64 +++++++++++++++++++
 MAINTAINERS                                   |  3 +-
 drivers/usb/dwc3/dwc3-generic-plat.c          |  2 +-
 3 files changed, 67 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml


base-commit: c369299895a591d96745d6492d4888259b004a9e
-- 
2.17.1

[PATCH v1 1/2] dt-bindings: usb: dwc3: add support for StarFive JHB100

[Minda Chen]

Add support for the USB 2.0 Dual-Role Device (DRD) controller embedded
in the StarFive JHB100 SoC. The controller is based on the Synopsys
DesignWare Core USB 3 (DWC3) IP.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
---
 .../bindings/usb/starfive,jhb100-dwc3.yaml    | 64 +++++++++++++++++++
 MAINTAINERS                                   |  3 +-
 2 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml

diff --git a/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml
new file mode 100644
index 000000000000..fbabe99e9d5c
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/starfive,jhb100-dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive JHB100 DWC3 USB SoC Controller
+
+maintainers:
+  - Minda Chen <minda.chen@starfivetech.com>
+
+description:
+  The USB DRD controller on JHB100 BMC SoC.
+
+allOf:
+  - $ref: snps,dwc3-common.yaml#
+
+properties:
+  compatible:
+    const: starfive,jhb100-dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: USB main enable clk
+      - description: DWC3 bus early clock
+      - description: DWC3 ref clock
+
+  clock-names:
+    items:
+      - const: main
+      - const: bus_early
+      - const: ref
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    usb@11800000 {
+        compatible = "starfive,jhb100-dwc3";
+        reg = <0x11800000 0x10000>;
+        clocks = <&usbcrg 9>,
+                 <&usbcrg 5>,
+                 <&usbcrg 6>;
+        clock-names = "main", "bus_early", "ref";
+        resets = <&usbcrg 4>;
+        interrupts = <105>;
+        dr_mode = "host";
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 32bd94a0b94c..2f3475e0b678 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -25252,10 +25252,11 @@ F:	Documentation/devicetree/bindings/reset/starfive,jh7100-reset.yaml
 F:	drivers/reset/starfive/reset-starfive-jh71*
 F:	include/dt-bindings/reset/starfive?jh71*.h
 
-STARFIVE JH71X0 USB DRIVERS
+STARFIVE USB DRIVERS
 M:	Minda Chen <minda.chen@starfivetech.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml
+F:	Documentation/devicetree/bindings/usb/starfive,jhb100-dwc3.yaml
 F:	drivers/usb/cdns3/cdns3-starfive.c
 
 STARFIVE JH71XX PMU CONTROLLER DRIVER
-- 
2.17.1

[PATCH v1 2/2] usb: dwc3: starfive: Add JHB100 USB 2.0 DRD controller

[Minda Chen]

JHB100 contains 2 dwc3 USB controllers and PHYs and working
as USB 2.0 speed. It can working in generic platform and
setting default properties.

Signed-off-by: Minda Chen <minda.chen@starfivetech.com>
---
 drivers/usb/dwc3/dwc3-generic-plat.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-generic-plat.c
index e846844e0023..4f2a9c531f0b 100644
--- a/drivers/usb/dwc3/dwc3-generic-plat.c
+++ b/drivers/usb/dwc3/dwc3-generic-plat.c
@@ -89,7 +89,6 @@ static int dwc3_generic_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "missing memory resource\n");
 		return -ENODEV;
 	}
-
 	dwc3g->resets = devm_reset_control_array_get_optional_exclusive(dev);
 	if (IS_ERR(dwc3g->resets))
 		return dev_err_probe(dev, PTR_ERR(dwc3g->resets), "failed to get resets\n");
@@ -214,6 +213,7 @@ static const struct of_device_id dwc3_generic_of_match[] = {
 	{ .compatible = "spacemit,k1-dwc3", },
 	{ .compatible = "fsl,ls1028a-dwc3", &fsl_ls1028_dwc3},
 	{ .compatible = "eswin,eic7700-dwc3", &eic7700_dwc3},
+	{ .compatible = "starfive,jhb100-dwc3", },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, dwc3_generic_of_match);
-- 
2.17.1