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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. +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-$(CONFIG_USB_DWC3_ST) += dwc3-st.o obj-$(CONFIG_USB_DWC3_QCOM) += dwc3-qcom.o obj-$(CONFIG_USB_DWC3_QCOM) += dwc3-qcom-legacy.o obj-$(CONFIG_USB_DWC3_IMX8MP) += dwc3-imx8mp.o +obj-$(CONFIG_USB_DWC3_LAYERSCAPE) += dwc3-layerscape.o obj-$(CONFIG_USB_DWC3_XILINX) += dwc3-xilinx.o obj-$(CONFIG_USB_DWC3_OCTEON) += dwc3-octeon.o obj-$(CONFIG_USB_DWC3_RTK) += dwc3-rtk.o diff --git a/drivers/usb/dwc3/dwc3-layerscape.c b/drivers/usb/dwc3/dwc3-layerscape.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 = pdev->dev.of_node; + struct dwc3_probe_data probe_data = {}; + struct property_entry props[2] = {}; + struct device *dev = &pdev->dev; + struct resource *res; + struct dwc3_ls *ls; + int prop_idx = 0; + int ret = 0; + + ls = devm_kzalloc(&pdev->dev, sizeof(*ls), GFP_KERNEL); + if (!ls) + return -ENOMEM; + + ls->dev = &pdev->dev; + + ls->dwc.dev = dev; + + res = 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++] = PROPERTY_ENTRY_U16("snps,gsbuscfg0-reqinfo", 0x2222); + + if (prop_idx) + ret = device_create_managed_software_node(dev, props, NULL); + + if (ret) + return dev_err_probe(dev, ret, "fail create software managed property node\n"); + + probe_data.dwc = &ls->dwc; + probe_data.res = res; + ret = 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 = platform_get_drvdata(pdev); + + dwc3_core_remove(dwc); +} + +static const struct of_device_id of_dwc3_ls_match[] = { + { + .compatible = "fsl,ls1028a-dwc3" + }, + {}, +}; +MODULE_DEVICE_TABLE(of, of_dwc3_ls_match); + +static struct platform_driver dwc3_ls_driver = { + .probe = dwc3_ls_probe, + .remove = dwc3_ls_remove, + .driver = { + .name = "ls-dwc3", + .of_match_table = of_dwc3_ls_match, + }, +}; + +module_platform_driver(dwc3_ls_driver); + +MODULE_AUTHOR("Frank Li "); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Freescale Layerscape USB3 Controller Driver");