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Layerscape dwc3 need set software managed property snps,gsbuscfg0-reqinfo as 0x2222 when dma-coherence set. Signed-off-by: Frank Li --- drivers/usb/dwc3/Kconfig | 10 +++++ drivers/usb/dwc3/Makefile | 1 + drivers/usb/dwc3/dwc3-layerscape.c | 88 ++++++++++++++++++++++++++++++++++= ++++ 3 files changed, 99 insertions(+) diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig index 310d182e10b50..13a86cf03b94b 100644 --- a/drivers/usb/dwc3/Kconfig +++ b/drivers/usb/dwc3/Kconfig @@ -150,6 +150,16 @@ config USB_DWC3_IMX8MP functionality. Say 'Y' or 'M' if you have one such device. =20 +config USB_DWC3_LAYERSCAPE + tristate "NXP Layerscape Platform" + depends on OF && COMMON_CLK + depends on ARCH_LAYERSCAPE || COMPILE_TEST + default USB_DWC3 + help + NXP LAYERSCAPE SoC use DesignWare Core IP for USB2/3 + functionality. + Say 'Y' or 'M' if you have one such device. + config USB_DWC3_XILINX tristate "Xilinx Platforms" depends on (ARCH_ZYNQMP || COMPILE_TEST) && OF diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile index 830e6c9e5fe07..cd635b77902fb 100644 --- a/drivers/usb/dwc3/Makefile +++ b/drivers/usb/dwc3/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_USB_DWC3_ST) +=3D dwc3-st.o obj-$(CONFIG_USB_DWC3_QCOM) +=3D dwc3-qcom.o obj-$(CONFIG_USB_DWC3_QCOM) +=3D dwc3-qcom-legacy.o obj-$(CONFIG_USB_DWC3_IMX8MP) +=3D dwc3-imx8mp.o +obj-$(CONFIG_USB_DWC3_LAYERSCAPE) +=3D dwc3-layerscape.o obj-$(CONFIG_USB_DWC3_XILINX) +=3D dwc3-xilinx.o obj-$(CONFIG_USB_DWC3_OCTEON) +=3D dwc3-octeon.o obj-$(CONFIG_USB_DWC3_RTK) +=3D dwc3-rtk.o diff --git a/drivers/usb/dwc3/dwc3-layerscape.c b/drivers/usb/dwc3/dwc3-lay= erscape.c new file mode 100644 index 0000000000000..d093f178e1e35 --- /dev/null +++ b/drivers/usb/dwc3/dwc3-layerscape.c @@ -0,0 +1,88 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2020 NXP + */ + +#include +#include +#include +#include + +#include "core.h" +#include "glue.h" + +struct dwc3_ls { + struct device *dev; + struct dwc3 dwc; +}; + +static int dwc3_ls_probe(struct platform_device *pdev) +{ + struct device_node *np =3D pdev->dev.of_node; + struct dwc3_probe_data probe_data =3D {}; + struct property_entry props[2] =3D {}; + struct device *dev =3D &pdev->dev; + struct resource *res; + struct dwc3_ls *ls; + int prop_idx =3D 0; + int ret =3D 0; + + ls =3D devm_kzalloc(&pdev->dev, sizeof(*ls), GFP_KERNEL); + if (!ls) + return -ENOMEM; + + ls->dev =3D &pdev->dev; + + ls->dwc.dev =3D dev; + + res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + dev_err_probe(&pdev->dev, -ENODEV, "missing memory resource\n"); + + if (of_dma_is_coherent(np)) + props[prop_idx++] =3D PROPERTY_ENTRY_U16("snps,gsbuscfg0-reqinfo", 0x222= 2); + + if (prop_idx) + ret =3D device_create_managed_software_node(dev, props, NULL); + + if (ret) + return dev_err_probe(dev, ret, "fail create software managed property no= de\n"); + + probe_data.dwc =3D &ls->dwc; + probe_data.res =3D res; + ret =3D dwc3_core_probe(&probe_data); + if (ret) + return dev_err_probe(dev, ret, "failed to register DWC3 Core\n"); + + return 0; +} + +static void dwc3_ls_remove(struct platform_device *pdev) +{ + struct dwc3 *dwc =3D platform_get_drvdata(pdev); + + dwc3_core_remove(dwc); +} + +static const struct of_device_id of_dwc3_ls_match[] =3D { + { + .compatible =3D "fsl,ls1028a-dwc3" + }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_dwc3_ls_match); + +static struct platform_driver dwc3_ls_driver =3D { + .probe =3D dwc3_ls_probe, + .remove =3D dwc3_ls_remove, + .driver =3D { + .name =3D "ls-dwc3", + .of_match_table =3D of_dwc3_ls_match, + }, +}; + +module_platform_driver(dwc3_ls_driver); + +MODULE_AUTHOR("Frank Li "); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Freescale Layerscape USB3 Controller Driver"); --=20 2.34.1