| Message ID | 20230406015216.27034-7-minda.chen@starfivetech.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add JH7110 USB and USB PHY driver support | expand |
On 23-04-06 09:52:15, Minda Chen wrote: > Adds Specific Glue layer to support USB peripherals on > StarFive JH7110 SoC. > There is a Cadence USB3 core for JH7110 SoCs, the cdns > core is the child of this USB wrapper module device. > > Signed-off-by: Minda Chen <minda.chen@starfivetech.com> > --- > MAINTAINERS | 7 + > drivers/usb/cdns3/Kconfig | 11 + > drivers/usb/cdns3/Makefile | 1 + > drivers/usb/cdns3/cdns3-starfive.c | 378 +++++++++++++++++++++++++++++ > drivers/usb/cdns3/core.h | 3 + > 5 files changed, 400 insertions(+) > create mode 100644 drivers/usb/cdns3/cdns3-starfive.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index d98b70d62fd4..0610bbf921bb 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -19977,6 +19977,13 @@ F: Documentation/devicetree/bindings/phy/starfive,jh7110-usb-phy.yaml > F: drivers/phy/starfive/phy-jh7110-pcie.c > F: drivers/phy/starfive/phy-jh7110-usb.c > > +STARFIVE JH71X0 USB DRIVERS > +M: Emil Renner Berthing <kernel@esmil.dk> > +M: Minda Chen <minda.chen@starfivetech.com> > +S: Maintained > +F: Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml > +F: drivers/usb/cdns3/cdns3-starfive.c > + > STATIC BRANCH/CALL > M: Peter Zijlstra <peterz@infradead.org> > M: Josh Poimboeuf <jpoimboe@kernel.org> > diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig > index b98ca0a1352a..0a514b591527 100644 > --- a/drivers/usb/cdns3/Kconfig > +++ b/drivers/usb/cdns3/Kconfig > @@ -78,6 +78,17 @@ config USB_CDNS3_IMX > > For example, imx8qm and imx8qxp. > > +config USB_CDNS3_STARFIVE > + tristate "Cadence USB3 support on StarFive SoC platforms" > + depends on ARCH_STARFIVE || COMPILE_TEST > + help > + Say 'Y' or 'M' here if you are building for StarFive SoCs > + platforms that contain Cadence USB3 controller core. > + > + e.g. JH7110. > + > + If you choose to build this driver as module it will > + be dynamically linked and module will be called cdns3-starfive.ko > endif > > if USB_CDNS_SUPPORT > diff --git a/drivers/usb/cdns3/Makefile b/drivers/usb/cdns3/Makefile > index 61edb2f89276..48dfae75b5aa 100644 > --- a/drivers/usb/cdns3/Makefile > +++ b/drivers/usb/cdns3/Makefile > @@ -24,6 +24,7 @@ endif > obj-$(CONFIG_USB_CDNS3_PCI_WRAP) += cdns3-pci-wrap.o > obj-$(CONFIG_USB_CDNS3_TI) += cdns3-ti.o > obj-$(CONFIG_USB_CDNS3_IMX) += cdns3-imx.o > +obj-$(CONFIG_USB_CDNS3_STARFIVE) += cdns3-starfive.o > > cdnsp-udc-pci-y := cdnsp-pci.o > > diff --git a/drivers/usb/cdns3/cdns3-starfive.c b/drivers/usb/cdns3/cdns3-starfive.c > new file mode 100644 > index 000000000000..925209a97bf9 > --- /dev/null > +++ b/drivers/usb/cdns3/cdns3-starfive.c > @@ -0,0 +1,378 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/** > + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller > + * > + * Copyright (C) 2022 Starfive, Inc. > + * Author: Yanhong Wang <yanhong.wang@starfivetech.com> > + * Author: Mason Huo <mason.huo@starfivetech.com> > + * Author: Minda Chen <minda.chen@starfivetech.com> > + */ > + > +#include <linux/bits.h> > +#include <linux/clk.h> > +#include <linux/module.h> > +#include <linux/mfd/syscon.h> > +#include <linux/kernel.h> > +#include <linux/platform_device.h> > +#include <linux/io.h> > +#include <linux/of_platform.h> > +#include <linux/regmap.h> > +#include <linux/reset.h> > +#include <linux/usb/otg.h> > +#include "core.h" > + > +#define USB_STRAP_HOST BIT(17) > +#define USB_STRAP_DEVICE BIT(18) > +#define USB_STRAP_MASK GENMASK(18, 16) > + > +#define USB_SUSPENDM_HOST BIT(19) > +#define USB_SUSPENDM_MASK BIT(19) > +#define CDNS_IRQ_WAKEUP_INDEX 3 > + > +struct cdns_starfive { > + struct device *dev; > + struct phy *usb2_phy; > + struct phy *usb3_phy; > + struct regmap *stg_syscon; > + struct reset_control *resets; > + struct clk_bulk_data *clks; > + int num_clks; > + enum phy_mode phy_mode; > + u32 stg_usb_mode; > +}; > + > +static int set_phy_power_on(struct cdns_starfive *data) > +{ > + int ret; > + > + ret = phy_power_on(data->usb2_phy); > + if (ret) > + return ret; > + > + ret = phy_power_on(data->usb3_phy); > + if (ret) > + phy_power_off(data->usb2_phy); > + > + return ret; > +} > + > +static void set_phy_power_off(struct cdns_starfive *data) > +{ > + phy_power_off(data->usb3_phy); > + phy_power_off(data->usb2_phy); > +} > + > +static void cdns_mode_init(struct platform_device *pdev, > + struct cdns_starfive *data) > +{ > + enum usb_dr_mode mode; > + > + mode = usb_get_dr_mode(&pdev->dev); > + > + switch (mode) { > + case USB_DR_MODE_HOST: > + regmap_update_bits(data->stg_syscon, > + data->stg_usb_mode, > + USB_STRAP_MASK, > + USB_STRAP_HOST); > + regmap_update_bits(data->stg_syscon, > + data->stg_usb_mode, > + USB_SUSPENDM_MASK, > + USB_SUSPENDM_HOST); > + data->phy_mode = PHY_MODE_USB_HOST; > + break; > + > + case USB_DR_MODE_PERIPHERAL: > + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, > + USB_STRAP_MASK, USB_STRAP_DEVICE); > + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, > + USB_SUSPENDM_MASK, 0); > + data->phy_mode = PHY_MODE_USB_DEVICE; > + break; > + > + case USB_DR_MODE_OTG: > + data->phy_mode = PHY_MODE_USB_OTG; > + default: > + break; > + } > +} > + > +static int cdns_clk_rst_init(struct cdns_starfive *data) > +{ > + int ret; > + > + data->num_clks = devm_clk_bulk_get_all(data->dev, &data->clks); > + if (data->num_clks < 0) > + return dev_err_probe(data->dev, -ENODEV, > + "Failed to get clocks\n"); > + > + data->resets = devm_reset_control_array_get_exclusive(data->dev); > + if (IS_ERR(data->resets)) { > + return dev_err_probe(data->dev, PTR_ERR(data->resets), > + "Failed to get resets"); > + } > + > + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); > + if (ret) > + return dev_err_probe(data->dev, ret, > + "failed to enable clocks\n"); > + > + ret = reset_control_deassert(data->resets); > + if (ret) { > + ret = dev_err_probe(data->dev, ret, > + "failed to reset clocks\n"); > + goto err_clk_init; > + } > + > + return ret; > + > +err_clk_init: > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + return ret; > +} > + > +static int cdns3_starfive_phy_init(struct device *dev, struct cdns_starfive *data) > +{ > + int ret; > + > + ret = phy_init(data->usb2_phy); > + if (ret) > + return ret; > + > + ret = phy_init(data->usb3_phy); > + if (ret) > + goto err_phy3_init; > + > + ret = set_phy_power_on(data); > + if (ret) > + goto err_phy_power_on; > + > + phy_set_mode(data->usb2_phy, data->phy_mode); > + phy_set_mode(data->usb3_phy, data->phy_mode); > + > + return 0; > + > +err_phy_power_on: > + phy_exit(data->usb3_phy); > +err_phy3_init: > + phy_exit(data->usb2_phy); > + return ret; > +} > + > +static int cdns3_starfive_platform_device_add(struct platform_device *pdev, > + struct cdns_starfive *data) > +{ > + struct platform_device *cdns3; > + struct resource cdns_res[CDNS_RESOURCES_NUM], *res; > + struct device *dev = &pdev->dev; > + const char *reg_name[CDNS_IOMEM_RESOURCES_NUM] = {"otg", "xhci", "dev"}; > + const char *irq_name[CDNS_IRQ_RESOURCES_NUM] = {"host", "peripheral", "otg", "wakeup"}; > + int i, ret, res_idx = 0; > + > + cdns3 = platform_device_alloc("cdns-usb3", PLATFORM_DEVID_AUTO); > + if (!cdns3) > + return dev_err_probe(dev, -ENOMEM, > + "couldn't alloc cdns3 usb device\n"); > + > + cdns3->dev.parent = dev; > + memset(cdns_res, 0, sizeof(cdns_res)); > + > + for (i = 0; i < CDNS_IOMEM_RESOURCES_NUM; i++) { > + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, reg_name[i]); > + if (!res) { > + ret = dev_err_probe(dev, > + -ENXIO, "couldn't get %s reg resource\n", reg_name[i]); > + goto free_memory; > + } > + cdns_res[res_idx] = *res; > + res_idx++; > + } > + > + for (i = 0; i < CDNS_IRQ_RESOURCES_NUM; i++) { > + if (i == CDNS_IRQ_WAKEUP_INDEX) { > + ret = platform_get_irq_byname_optional(pdev, irq_name[i]); > + if (ret < 0) > + continue; > + } else { > + ret = platform_get_irq_byname(pdev, irq_name[i]); > + if (ret < 0) { > + dev_err(dev, "couldn't get %s irq\n", irq_name[i]); > + goto free_memory; > + } > + } > + cdns_res[res_idx].start = ret; > + cdns_res[res_idx].end = ret; > + cdns_res[res_idx].flags = IORESOURCE_IRQ; > + cdns_res[res_idx].name = irq_name[i]; > + res_idx++; > + } > + > + ret = platform_device_add_resources(cdns3, cdns_res, res_idx); > + if (ret) { > + dev_err(dev, "couldn't add res to cdns3 device\n"); > + goto free_memory; > + } > + > + ret = platform_device_add(cdns3); > + if (ret) { > + dev_err(dev, "failed to register cdns3 device\n"); > + goto free_memory; > + } > + > + return ret; > +free_memory: > + platform_device_put(cdns3); > + return ret; > +} > + > +static int cdns_starfive_probe(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct cdns_starfive *data; > + unsigned int args; > + int ret; > + > + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); > + if (!data) > + return -ENOMEM; > + > + platform_set_drvdata(pdev, data); > + > + data->dev = dev; > + > + data->stg_syscon = syscon_regmap_lookup_by_phandle_args(pdev->dev.of_node, > + "starfive,stg-syscon", 1, &args); > + > + if (IS_ERR(data->stg_syscon)) > + return dev_err_probe(dev, PTR_ERR(data->stg_syscon), > + "Failed to parse starfive,stg-syscon\n"); > + > + data->stg_usb_mode = args; > + > + cdns_mode_init(pdev, data); > + > + ret = cdns_clk_rst_init(data); > + if (ret) > + return ret; > + > + data->usb2_phy = devm_phy_optional_get(dev, "usb2-phy"); > + if (IS_ERR(data->usb2_phy)) > + return dev_err_probe(dev, PTR_ERR(data->usb2_phy), > + "Failed to parse usb2 phy\n"); > + > + data->usb3_phy = devm_phy_optional_get(dev, "usb3-phy"); > + if (IS_ERR(data->usb3_phy)) > + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), > + "Failed to parse usb3 phy\n"); > + You may not change the comment for if above functions are failed, there is not opposite functions for clk and reset. Others are okay for me. Peter > + cdns3_starfive_phy_init(dev, data); > + > + ret = cdns3_starfive_platform_device_add(pdev, data); > + if (ret) { > + set_phy_power_off(data); > + phy_exit(data->usb3_phy); > + phy_exit(data->usb2_phy); > + reset_control_assert(data->resets); > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + return dev_err_probe(dev, ret, "Failed to create children\n"); > + } > + > + device_set_wakeup_capable(dev, true); > + pm_runtime_set_active(dev); > + pm_runtime_enable(dev); > + > + dev_info(dev, "usb mode %d probe success\n", data->phy_mode); > + > + return 0; > +} > + > +static int cdns_starfive_remove_core(struct device *dev, void *c) > +{ > + struct platform_device *pdev = to_platform_device(dev); > + > + platform_device_unregister(pdev); > + > + return 0; > +} > + > +static int cdns_starfive_remove(struct platform_device *pdev) > +{ > + struct device *dev = &pdev->dev; > + struct cdns_starfive *data = dev_get_drvdata(dev); > + > + pm_runtime_get_sync(dev); > + device_for_each_child(dev, NULL, cdns_starfive_remove_core); > + > + set_phy_power_off(data); > + phy_exit(data->usb2_phy); > + phy_exit(data->usb3_phy); > + > + reset_control_assert(data->resets); > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + pm_runtime_disable(dev); > + pm_runtime_put_noidle(dev); > + platform_set_drvdata(pdev, NULL); > + > + return 0; > +} > + > +#ifdef CONFIG_PM > +static int cdns_starfive_resume(struct device *dev) > +{ > + struct cdns_starfive *data = dev_get_drvdata(dev); > + int ret; > + > + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); > + if (ret) > + return ret; > + > + ret = reset_control_deassert(data->resets); > + if (ret) > + return ret; > + > + ret = cdns3_starfive_phy_init(dev, data); > + > + return ret; > +} > + > +static int cdns_starfive_suspend(struct device *dev) > +{ > + struct cdns_starfive *data = dev_get_drvdata(dev); > + > + set_phy_power_off(data); > + phy_exit(data->usb2_phy); > + phy_exit(data->usb3_phy); > + reset_control_assert(data->resets); > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + > + return 0; > +} > +#endif > + > +static const struct dev_pm_ops cdns_starfive_pm_ops = { > + SET_RUNTIME_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume, NULL) > + SET_SYSTEM_SLEEP_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume) > +}; > + > +static const struct of_device_id cdns_starfive_of_match[] = { > + { .compatible = "starfive,jh7110-usb", }, > + { /* sentinel */ } > +}; > +MODULE_DEVICE_TABLE(of, cdns_starfive_of_match); > + > +static struct platform_driver cdns_starfive_driver = { > + .probe = cdns_starfive_probe, > + .remove = cdns_starfive_remove, > + .driver = { > + .name = "cdns3-starfive", > + .of_match_table = cdns_starfive_of_match, > + .pm = &cdns_starfive_pm_ops, > + }, > +}; > +module_platform_driver(cdns_starfive_driver); > + > +MODULE_ALIAS("platform:cdns3-starfive"); > +MODULE_AUTHOR("YanHong Wang <yanhong.wang@starfivetech.com>"); > +MODULE_AUTHOR("Mason Huo <mason.huo@starfivetech.com>"); > +MODULE_LICENSE("GPL v2"); > +MODULE_DESCRIPTION("Cadence USB3 StarFive Glue Layer"); > diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h > index 2d332a788871..8d44ab504898 100644 > --- a/drivers/usb/cdns3/core.h > +++ b/drivers/usb/cdns3/core.h > @@ -38,6 +38,9 @@ struct cdns_role_driver { > }; > > #define CDNS_XHCI_RESOURCES_NUM 2 > +#define CDNS_IOMEM_RESOURCES_NUM 3 > +#define CDNS_IRQ_RESOURCES_NUM 4 > +#define CDNS_RESOURCES_NUM (CDNS_IOMEM_RESOURCES_NUM + CDNS_IRQ_RESOURCES_NUM) > > struct cdns3_platform_data { > int (*platform_suspend)(struct device *dev, > -- > 2.17.1 >
On 2023/4/11 9:01, Peter Chen wrote: > On 23-04-06 09:52:15, Minda Chen wrote: >> Adds Specific Glue layer to support USB peripherals on >> StarFive JH7110 SoC. >> There is a Cadence USB3 core for JH7110 SoCs, the cdns >> core is the child of this USB wrapper module device. >> >> Signed-off-by: Minda Chen <minda.chen@starfivetech.com> >> --- >> MAINTAINERS | 7 + >> drivers/usb/cdns3/Kconfig | 11 + >> drivers/usb/cdns3/Makefile | 1 + >> drivers/usb/cdns3/cdns3-starfive.c | 378 +++++++++++++++++++++++++++++ >> drivers/usb/cdns3/core.h | 3 + >> 5 files changed, 400 insertions(+) >> create mode 100644 drivers/usb/cdns3/cdns3-starfive.c >> >> diff --git a/MAINTAINERS b/MAINTAINERS >> index d98b70d62fd4..0610bbf921bb 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -19977,6 +19977,13 @@ F: Documentation/devicetree/bindings/phy/starfive,jh7110-usb-phy.yaml >> F: drivers/phy/starfive/phy-jh7110-pcie.c >> F: drivers/phy/starfive/phy-jh7110-usb.c >> >> +STARFIVE JH71X0 USB DRIVERS >> +M: Emil Renner Berthing <kernel@esmil.dk> >> +M: Minda Chen <minda.chen@starfivetech.com> >> +S: Maintained >> +F: Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml >> +F: drivers/usb/cdns3/cdns3-starfive.c >> + >> STATIC BRANCH/CALL >> M: Peter Zijlstra <peterz@infradead.org> >> M: Josh Poimboeuf <jpoimboe@kernel.org> >> diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig >> index b98ca0a1352a..0a514b591527 100644 >> --- a/drivers/usb/cdns3/Kconfig >> +++ b/drivers/usb/cdns3/Kconfig >> @@ -78,6 +78,17 @@ config USB_CDNS3_IMX >> >> For example, imx8qm and imx8qxp. >> >> +config USB_CDNS3_STARFIVE >> + tristate "Cadence USB3 support on StarFive SoC platforms" >> + depends on ARCH_STARFIVE || COMPILE_TEST >> + help >> + Say 'Y' or 'M' here if you are building for StarFive SoCs >> + platforms that contain Cadence USB3 controller core. >> + >> + e.g. JH7110. >> + >> + If you choose to build this driver as module it will >> + be dynamically linked and module will be called cdns3-starfive.ko >> endif >> >> if USB_CDNS_SUPPORT >> diff --git a/drivers/usb/cdns3/Makefile b/drivers/usb/cdns3/Makefile >> index 61edb2f89276..48dfae75b5aa 100644 >> --- a/drivers/usb/cdns3/Makefile >> +++ b/drivers/usb/cdns3/Makefile >> @@ -24,6 +24,7 @@ endif >> obj-$(CONFIG_USB_CDNS3_PCI_WRAP) += cdns3-pci-wrap.o >> obj-$(CONFIG_USB_CDNS3_TI) += cdns3-ti.o >> obj-$(CONFIG_USB_CDNS3_IMX) += cdns3-imx.o >> +obj-$(CONFIG_USB_CDNS3_STARFIVE) += cdns3-starfive.o >> >> cdnsp-udc-pci-y := cdnsp-pci.o >> >> diff --git a/drivers/usb/cdns3/cdns3-starfive.c b/drivers/usb/cdns3/cdns3-starfive.c >> new file mode 100644 >> index 000000000000..925209a97bf9 >> --- /dev/null >> +++ b/drivers/usb/cdns3/cdns3-starfive.c >> @@ -0,0 +1,378 @@ >> +// SPDX-License-Identifier: GPL-2.0 >> +/** >> + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller >> + * >> + * Copyright (C) 2022 Starfive, Inc. >> + * Author: Yanhong Wang <yanhong.wang@starfivetech.com> >> + * Author: Mason Huo <mason.huo@starfivetech.com> >> + * Author: Minda Chen <minda.chen@starfivetech.com> >> + */ >> + >> +#include <linux/bits.h> >> +#include <linux/clk.h> >> +#include <linux/module.h> >> +#include <linux/mfd/syscon.h> >> +#include <linux/kernel.h> >> +#include <linux/platform_device.h> >> +#include <linux/io.h> >> +#include <linux/of_platform.h> >> +#include <linux/regmap.h> >> +#include <linux/reset.h> >> +#include <linux/usb/otg.h> >> +#include "core.h" >> + >> +#define USB_STRAP_HOST BIT(17) >> +#define USB_STRAP_DEVICE BIT(18) >> +#define USB_STRAP_MASK GENMASK(18, 16) >> + >> +#define USB_SUSPENDM_HOST BIT(19) >> +#define USB_SUSPENDM_MASK BIT(19) >> +#define CDNS_IRQ_WAKEUP_INDEX 3 >> + >> +struct cdns_starfive { >> + struct device *dev; >> + struct phy *usb2_phy; >> + struct phy *usb3_phy; >> + struct regmap *stg_syscon; >> + struct reset_control *resets; >> + struct clk_bulk_data *clks; >> + int num_clks; >> + enum phy_mode phy_mode; >> + u32 stg_usb_mode; >> +}; >> + >> +static int set_phy_power_on(struct cdns_starfive *data) >> +{ >> + int ret; >> + >> + ret = phy_power_on(data->usb2_phy); >> + if (ret) >> + return ret; >> + >> + ret = phy_power_on(data->usb3_phy); >> + if (ret) >> + phy_power_off(data->usb2_phy); >> + >> + return ret; >> +} >> + >> +static void set_phy_power_off(struct cdns_starfive *data) >> +{ >> + phy_power_off(data->usb3_phy); >> + phy_power_off(data->usb2_phy); >> +} >> + >> +static void cdns_mode_init(struct platform_device *pdev, >> + struct cdns_starfive *data) >> +{ >> + enum usb_dr_mode mode; >> + >> + mode = usb_get_dr_mode(&pdev->dev); >> + >> + switch (mode) { >> + case USB_DR_MODE_HOST: >> + regmap_update_bits(data->stg_syscon, >> + data->stg_usb_mode, >> + USB_STRAP_MASK, >> + USB_STRAP_HOST); >> + regmap_update_bits(data->stg_syscon, >> + data->stg_usb_mode, >> + USB_SUSPENDM_MASK, >> + USB_SUSPENDM_HOST); >> + data->phy_mode = PHY_MODE_USB_HOST; >> + break; >> + >> + case USB_DR_MODE_PERIPHERAL: >> + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, >> + USB_STRAP_MASK, USB_STRAP_DEVICE); >> + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, >> + USB_SUSPENDM_MASK, 0); >> + data->phy_mode = PHY_MODE_USB_DEVICE; >> + break; >> + >> + case USB_DR_MODE_OTG: >> + data->phy_mode = PHY_MODE_USB_OTG; >> + default: >> + break; >> + } >> +} >> + >> +static int cdns_clk_rst_init(struct cdns_starfive *data) >> +{ >> + int ret; >> + >> + data->num_clks = devm_clk_bulk_get_all(data->dev, &data->clks); >> + if (data->num_clks < 0) >> + return dev_err_probe(data->dev, -ENODEV, >> + "Failed to get clocks\n"); >> + >> + data->resets = devm_reset_control_array_get_exclusive(data->dev); >> + if (IS_ERR(data->resets)) { >> + return dev_err_probe(data->dev, PTR_ERR(data->resets), >> + "Failed to get resets"); >> + } >> + >> + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); >> + if (ret) >> + return dev_err_probe(data->dev, ret, >> + "failed to enable clocks\n"); >> + >> + ret = reset_control_deassert(data->resets); >> + if (ret) { >> + ret = dev_err_probe(data->dev, ret, >> + "failed to reset clocks\n"); >> + goto err_clk_init; >> + } >> + >> + return ret; >> + >> +err_clk_init: >> + clk_bulk_disable_unprepare(data->num_clks, data->clks); >> + return ret; >> +} >> + >> +static int cdns3_starfive_phy_init(struct device *dev, struct cdns_starfive *data) >> +{ >> + int ret; >> + >> + ret = phy_init(data->usb2_phy); >> + if (ret) >> + return ret; >> + >> + ret = phy_init(data->usb3_phy); >> + if (ret) >> + goto err_phy3_init; >> + >> + ret = set_phy_power_on(data); >> + if (ret) >> + goto err_phy_power_on; >> + >> + phy_set_mode(data->usb2_phy, data->phy_mode); >> + phy_set_mode(data->usb3_phy, data->phy_mode); >> + >> + return 0; >> + >> +err_phy_power_on: >> + phy_exit(data->usb3_phy); >> +err_phy3_init: >> + phy_exit(data->usb2_phy); >> + return ret; >> +} >> + >> +static int cdns3_starfive_platform_device_add(struct platform_device *pdev, >> + struct cdns_starfive *data) >> +{ >> + struct platform_device *cdns3; >> + struct resource cdns_res[CDNS_RESOURCES_NUM], *res; >> + struct device *dev = &pdev->dev; >> + const char *reg_name[CDNS_IOMEM_RESOURCES_NUM] = {"otg", "xhci", "dev"}; >> + const char *irq_name[CDNS_IRQ_RESOURCES_NUM] = {"host", "peripheral", "otg", "wakeup"}; >> + int i, ret, res_idx = 0; >> + >> + cdns3 = platform_device_alloc("cdns-usb3", PLATFORM_DEVID_AUTO); >> + if (!cdns3) >> + return dev_err_probe(dev, -ENOMEM, >> + "couldn't alloc cdns3 usb device\n"); >> + >> + cdns3->dev.parent = dev; >> + memset(cdns_res, 0, sizeof(cdns_res)); >> + >> + for (i = 0; i < CDNS_IOMEM_RESOURCES_NUM; i++) { >> + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, reg_name[i]); >> + if (!res) { >> + ret = dev_err_probe(dev, >> + -ENXIO, "couldn't get %s reg resource\n", reg_name[i]); >> + goto free_memory; >> + } >> + cdns_res[res_idx] = *res; >> + res_idx++; >> + } >> + >> + for (i = 0; i < CDNS_IRQ_RESOURCES_NUM; i++) { >> + if (i == CDNS_IRQ_WAKEUP_INDEX) { >> + ret = platform_get_irq_byname_optional(pdev, irq_name[i]); >> + if (ret < 0) >> + continue; >> + } else { >> + ret = platform_get_irq_byname(pdev, irq_name[i]); >> + if (ret < 0) { >> + dev_err(dev, "couldn't get %s irq\n", irq_name[i]); >> + goto free_memory; >> + } >> + } >> + cdns_res[res_idx].start = ret; >> + cdns_res[res_idx].end = ret; >> + cdns_res[res_idx].flags = IORESOURCE_IRQ; >> + cdns_res[res_idx].name = irq_name[i]; >> + res_idx++; >> + } >> + >> + ret = platform_device_add_resources(cdns3, cdns_res, res_idx); >> + if (ret) { >> + dev_err(dev, "couldn't add res to cdns3 device\n"); >> + goto free_memory; >> + } >> + >> + ret = platform_device_add(cdns3); >> + if (ret) { >> + dev_err(dev, "failed to register cdns3 device\n"); >> + goto free_memory; >> + } >> + >> + return ret; >> +free_memory: >> + platform_device_put(cdns3); >> + return ret; >> +} >> + >> +static int cdns_starfive_probe(struct platform_device *pdev) >> +{ >> + struct device *dev = &pdev->dev; >> + struct cdns_starfive *data; >> + unsigned int args; >> + int ret; >> + >> + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); >> + if (!data) >> + return -ENOMEM; >> + >> + platform_set_drvdata(pdev, data); >> + >> + data->dev = dev; >> + >> + data->stg_syscon = syscon_regmap_lookup_by_phandle_args(pdev->dev.of_node, >> + "starfive,stg-syscon", 1, &args); >> + >> + if (IS_ERR(data->stg_syscon)) >> + return dev_err_probe(dev, PTR_ERR(data->stg_syscon), >> + "Failed to parse starfive,stg-syscon\n"); >> + >> + data->stg_usb_mode = args; >> + >> + cdns_mode_init(pdev, data); >> + >> + ret = cdns_clk_rst_init(data); >> + if (ret) >> + return ret; >> + >> + data->usb2_phy = devm_phy_optional_get(dev, "usb2-phy"); >> + if (IS_ERR(data->usb2_phy)) >> + return dev_err_probe(dev, PTR_ERR(data->usb2_phy), >> + "Failed to parse usb2 phy\n"); >> + >> + data->usb3_phy = devm_phy_optional_get(dev, "usb3-phy"); >> + if (IS_ERR(data->usb3_phy)) >> + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), >> + "Failed to parse usb3 phy\n"); >> + > > You may not change the comment for if above functions are failed, there > is not opposite functions for clk and reset. > > Others are okay for me. > > Peter > OK, I will change this. Thank you very much. >> + cdns3_starfive_phy_init(dev, data); >> + >> + ret = cdns3_starfive_platform_device_add(pdev, data); >> + if (ret) { >> + set_phy_power_off(data); >> + phy_exit(data->usb3_phy); >> + phy_exit(data->usb2_phy); >> + reset_control_assert(data->resets); >> + clk_bulk_disable_unprepare(data->num_clks, data->clks); >> + return dev_err_probe(dev, ret, "Failed to create children\n"); >> + } >> + >> + device_set_wakeup_capable(dev, true); >> + pm_runtime_set_active(dev); >> + pm_runtime_enable(dev); >> + >> + dev_info(dev, "usb mode %d probe success\n", data->phy_mode); >> + >> + return 0; >> +} >> + >> +static int cdns_starfive_remove_core(struct device *dev, void *c) >> +{ >> + struct platform_device *pdev = to_platform_device(dev); >> + >> + platform_device_unregister(pdev); >> + >> + return 0; >> +} >> + >> +static int cdns_starfive_remove(struct platform_device *pdev) >> +{ >> + struct device *dev = &pdev->dev; >> + struct cdns_starfive *data = dev_get_drvdata(dev); >> + >> + pm_runtime_get_sync(dev); >> + device_for_each_child(dev, NULL, cdns_starfive_remove_core); >> + >> + set_phy_power_off(data); >> + phy_exit(data->usb2_phy); >> + phy_exit(data->usb3_phy); >> + >> + reset_control_assert(data->resets); >> + clk_bulk_disable_unprepare(data->num_clks, data->clks); >> + pm_runtime_disable(dev); >> + pm_runtime_put_noidle(dev); >> + platform_set_drvdata(pdev, NULL); >> + >> + return 0; >> +} >> + >> +#ifdef CONFIG_PM >> +static int cdns_starfive_resume(struct device *dev) >> +{ >> + struct cdns_starfive *data = dev_get_drvdata(dev); >> + int ret; >> + >> + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); >> + if (ret) >> + return ret; >> + >> + ret = reset_control_deassert(data->resets); >> + if (ret) >> + return ret; >> + >> + ret = cdns3_starfive_phy_init(dev, data); >> + >> + return ret; >> +} >> + >> +static int cdns_starfive_suspend(struct device *dev) >> +{ >> + struct cdns_starfive *data = dev_get_drvdata(dev); >> + >> + set_phy_power_off(data); >> + phy_exit(data->usb2_phy); >> + phy_exit(data->usb3_phy); >> + reset_control_assert(data->resets); >> + clk_bulk_disable_unprepare(data->num_clks, data->clks); >> + >> + return 0; >> +} >> +#endif >> + >> +static const struct dev_pm_ops cdns_starfive_pm_ops = { >> + SET_RUNTIME_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume, NULL) >> + SET_SYSTEM_SLEEP_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume) >> +}; >> + >> +static const struct of_device_id cdns_starfive_of_match[] = { >> + { .compatible = "starfive,jh7110-usb", }, >> + { /* sentinel */ } >> +}; >> +MODULE_DEVICE_TABLE(of, cdns_starfive_of_match); >> + >> +static struct platform_driver cdns_starfive_driver = { >> + .probe = cdns_starfive_probe, >> + .remove = cdns_starfive_remove, >> + .driver = { >> + .name = "cdns3-starfive", >> + .of_match_table = cdns_starfive_of_match, >> + .pm = &cdns_starfive_pm_ops, >> + }, >> +}; >> +module_platform_driver(cdns_starfive_driver); >> + >> +MODULE_ALIAS("platform:cdns3-starfive"); >> +MODULE_AUTHOR("YanHong Wang <yanhong.wang@starfivetech.com>"); >> +MODULE_AUTHOR("Mason Huo <mason.huo@starfivetech.com>"); >> +MODULE_LICENSE("GPL v2"); >> +MODULE_DESCRIPTION("Cadence USB3 StarFive Glue Layer"); >> diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h >> index 2d332a788871..8d44ab504898 100644 >> --- a/drivers/usb/cdns3/core.h >> +++ b/drivers/usb/cdns3/core.h >> @@ -38,6 +38,9 @@ struct cdns_role_driver { >> }; >> >> #define CDNS_XHCI_RESOURCES_NUM 2 >> +#define CDNS_IOMEM_RESOURCES_NUM 3 >> +#define CDNS_IRQ_RESOURCES_NUM 4 >> +#define CDNS_RESOURCES_NUM (CDNS_IOMEM_RESOURCES_NUM + CDNS_IRQ_RESOURCES_NUM) >> >> struct cdns3_platform_data { >> int (*platform_suspend)(struct device *dev, >> -- >> 2.17.1 >> >
diff --git a/MAINTAINERS b/MAINTAINERS index d98b70d62fd4..0610bbf921bb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19977,6 +19977,13 @@ F: Documentation/devicetree/bindings/phy/starfive,jh7110-usb-phy.yaml F: drivers/phy/starfive/phy-jh7110-pcie.c F: drivers/phy/starfive/phy-jh7110-usb.c +STARFIVE JH71X0 USB DRIVERS +M: Emil Renner Berthing <kernel@esmil.dk> +M: Minda Chen <minda.chen@starfivetech.com> +S: Maintained +F: Documentation/devicetree/bindings/usb/starfive,jh7110-usb.yaml +F: drivers/usb/cdns3/cdns3-starfive.c + STATIC BRANCH/CALL M: Peter Zijlstra <peterz@infradead.org> M: Josh Poimboeuf <jpoimboe@kernel.org> diff --git a/drivers/usb/cdns3/Kconfig b/drivers/usb/cdns3/Kconfig index b98ca0a1352a..0a514b591527 100644 --- a/drivers/usb/cdns3/Kconfig +++ b/drivers/usb/cdns3/Kconfig @@ -78,6 +78,17 @@ config USB_CDNS3_IMX For example, imx8qm and imx8qxp. +config USB_CDNS3_STARFIVE + tristate "Cadence USB3 support on StarFive SoC platforms" + depends on ARCH_STARFIVE || COMPILE_TEST + help + Say 'Y' or 'M' here if you are building for StarFive SoCs + platforms that contain Cadence USB3 controller core. + + e.g. JH7110. + + If you choose to build this driver as module it will + be dynamically linked and module will be called cdns3-starfive.ko endif if USB_CDNS_SUPPORT diff --git a/drivers/usb/cdns3/Makefile b/drivers/usb/cdns3/Makefile index 61edb2f89276..48dfae75b5aa 100644 --- a/drivers/usb/cdns3/Makefile +++ b/drivers/usb/cdns3/Makefile @@ -24,6 +24,7 @@ endif obj-$(CONFIG_USB_CDNS3_PCI_WRAP) += cdns3-pci-wrap.o obj-$(CONFIG_USB_CDNS3_TI) += cdns3-ti.o obj-$(CONFIG_USB_CDNS3_IMX) += cdns3-imx.o +obj-$(CONFIG_USB_CDNS3_STARFIVE) += cdns3-starfive.o cdnsp-udc-pci-y := cdnsp-pci.o diff --git a/drivers/usb/cdns3/cdns3-starfive.c b/drivers/usb/cdns3/cdns3-starfive.c new file mode 100644 index 000000000000..925209a97bf9 --- /dev/null +++ b/drivers/usb/cdns3/cdns3-starfive.c @@ -0,0 +1,378 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller + * + * Copyright (C) 2022 Starfive, Inc. + * Author: Yanhong Wang <yanhong.wang@starfivetech.com> + * Author: Mason Huo <mason.huo@starfivetech.com> + * Author: Minda Chen <minda.chen@starfivetech.com> + */ + +#include <linux/bits.h> +#include <linux/clk.h> +#include <linux/module.h> +#include <linux/mfd/syscon.h> +#include <linux/kernel.h> +#include <linux/platform_device.h> +#include <linux/io.h> +#include <linux/of_platform.h> +#include <linux/regmap.h> +#include <linux/reset.h> +#include <linux/usb/otg.h> +#include "core.h" + +#define USB_STRAP_HOST BIT(17) +#define USB_STRAP_DEVICE BIT(18) +#define USB_STRAP_MASK GENMASK(18, 16) + +#define USB_SUSPENDM_HOST BIT(19) +#define USB_SUSPENDM_MASK BIT(19) +#define CDNS_IRQ_WAKEUP_INDEX 3 + +struct cdns_starfive { + struct device *dev; + struct phy *usb2_phy; + struct phy *usb3_phy; + struct regmap *stg_syscon; + struct reset_control *resets; + struct clk_bulk_data *clks; + int num_clks; + enum phy_mode phy_mode; + u32 stg_usb_mode; +}; + +static int set_phy_power_on(struct cdns_starfive *data) +{ + int ret; + + ret = phy_power_on(data->usb2_phy); + if (ret) + return ret; + + ret = phy_power_on(data->usb3_phy); + if (ret) + phy_power_off(data->usb2_phy); + + return ret; +} + +static void set_phy_power_off(struct cdns_starfive *data) +{ + phy_power_off(data->usb3_phy); + phy_power_off(data->usb2_phy); +} + +static void cdns_mode_init(struct platform_device *pdev, + struct cdns_starfive *data) +{ + enum usb_dr_mode mode; + + mode = usb_get_dr_mode(&pdev->dev); + + switch (mode) { + case USB_DR_MODE_HOST: + regmap_update_bits(data->stg_syscon, + data->stg_usb_mode, + USB_STRAP_MASK, + USB_STRAP_HOST); + regmap_update_bits(data->stg_syscon, + data->stg_usb_mode, + USB_SUSPENDM_MASK, + USB_SUSPENDM_HOST); + data->phy_mode = PHY_MODE_USB_HOST; + break; + + case USB_DR_MODE_PERIPHERAL: + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, + USB_STRAP_MASK, USB_STRAP_DEVICE); + regmap_update_bits(data->stg_syscon, data->stg_usb_mode, + USB_SUSPENDM_MASK, 0); + data->phy_mode = PHY_MODE_USB_DEVICE; + break; + + case USB_DR_MODE_OTG: + data->phy_mode = PHY_MODE_USB_OTG; + default: + break; + } +} + +static int cdns_clk_rst_init(struct cdns_starfive *data) +{ + int ret; + + data->num_clks = devm_clk_bulk_get_all(data->dev, &data->clks); + if (data->num_clks < 0) + return dev_err_probe(data->dev, -ENODEV, + "Failed to get clocks\n"); + + data->resets = devm_reset_control_array_get_exclusive(data->dev); + if (IS_ERR(data->resets)) { + return dev_err_probe(data->dev, PTR_ERR(data->resets), + "Failed to get resets"); + } + + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); + if (ret) + return dev_err_probe(data->dev, ret, + "failed to enable clocks\n"); + + ret = reset_control_deassert(data->resets); + if (ret) { + ret = dev_err_probe(data->dev, ret, + "failed to reset clocks\n"); + goto err_clk_init; + } + + return ret; + +err_clk_init: + clk_bulk_disable_unprepare(data->num_clks, data->clks); + return ret; +} + +static int cdns3_starfive_phy_init(struct device *dev, struct cdns_starfive *data) +{ + int ret; + + ret = phy_init(data->usb2_phy); + if (ret) + return ret; + + ret = phy_init(data->usb3_phy); + if (ret) + goto err_phy3_init; + + ret = set_phy_power_on(data); + if (ret) + goto err_phy_power_on; + + phy_set_mode(data->usb2_phy, data->phy_mode); + phy_set_mode(data->usb3_phy, data->phy_mode); + + return 0; + +err_phy_power_on: + phy_exit(data->usb3_phy); +err_phy3_init: + phy_exit(data->usb2_phy); + return ret; +} + +static int cdns3_starfive_platform_device_add(struct platform_device *pdev, + struct cdns_starfive *data) +{ + struct platform_device *cdns3; + struct resource cdns_res[CDNS_RESOURCES_NUM], *res; + struct device *dev = &pdev->dev; + const char *reg_name[CDNS_IOMEM_RESOURCES_NUM] = {"otg", "xhci", "dev"}; + const char *irq_name[CDNS_IRQ_RESOURCES_NUM] = {"host", "peripheral", "otg", "wakeup"}; + int i, ret, res_idx = 0; + + cdns3 = platform_device_alloc("cdns-usb3", PLATFORM_DEVID_AUTO); + if (!cdns3) + return dev_err_probe(dev, -ENOMEM, + "couldn't alloc cdns3 usb device\n"); + + cdns3->dev.parent = dev; + memset(cdns_res, 0, sizeof(cdns_res)); + + for (i = 0; i < CDNS_IOMEM_RESOURCES_NUM; i++) { + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, reg_name[i]); + if (!res) { + ret = dev_err_probe(dev, + -ENXIO, "couldn't get %s reg resource\n", reg_name[i]); + goto free_memory; + } + cdns_res[res_idx] = *res; + res_idx++; + } + + for (i = 0; i < CDNS_IRQ_RESOURCES_NUM; i++) { + if (i == CDNS_IRQ_WAKEUP_INDEX) { + ret = platform_get_irq_byname_optional(pdev, irq_name[i]); + if (ret < 0) + continue; + } else { + ret = platform_get_irq_byname(pdev, irq_name[i]); + if (ret < 0) { + dev_err(dev, "couldn't get %s irq\n", irq_name[i]); + goto free_memory; + } + } + cdns_res[res_idx].start = ret; + cdns_res[res_idx].end = ret; + cdns_res[res_idx].flags = IORESOURCE_IRQ; + cdns_res[res_idx].name = irq_name[i]; + res_idx++; + } + + ret = platform_device_add_resources(cdns3, cdns_res, res_idx); + if (ret) { + dev_err(dev, "couldn't add res to cdns3 device\n"); + goto free_memory; + } + + ret = platform_device_add(cdns3); + if (ret) { + dev_err(dev, "failed to register cdns3 device\n"); + goto free_memory; + } + + return ret; +free_memory: + platform_device_put(cdns3); + return ret; +} + +static int cdns_starfive_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cdns_starfive *data; + unsigned int args; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + platform_set_drvdata(pdev, data); + + data->dev = dev; + + data->stg_syscon = syscon_regmap_lookup_by_phandle_args(pdev->dev.of_node, + "starfive,stg-syscon", 1, &args); + + if (IS_ERR(data->stg_syscon)) + return dev_err_probe(dev, PTR_ERR(data->stg_syscon), + "Failed to parse starfive,stg-syscon\n"); + + data->stg_usb_mode = args; + + cdns_mode_init(pdev, data); + + ret = cdns_clk_rst_init(data); + if (ret) + return ret; + + data->usb2_phy = devm_phy_optional_get(dev, "usb2-phy"); + if (IS_ERR(data->usb2_phy)) + return dev_err_probe(dev, PTR_ERR(data->usb2_phy), + "Failed to parse usb2 phy\n"); + + data->usb3_phy = devm_phy_optional_get(dev, "usb3-phy"); + if (IS_ERR(data->usb3_phy)) + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), + "Failed to parse usb3 phy\n"); + + cdns3_starfive_phy_init(dev, data); + + ret = cdns3_starfive_platform_device_add(pdev, data); + if (ret) { + set_phy_power_off(data); + phy_exit(data->usb3_phy); + phy_exit(data->usb2_phy); + reset_control_assert(data->resets); + clk_bulk_disable_unprepare(data->num_clks, data->clks); + return dev_err_probe(dev, ret, "Failed to create children\n"); + } + + device_set_wakeup_capable(dev, true); + pm_runtime_set_active(dev); + pm_runtime_enable(dev); + + dev_info(dev, "usb mode %d probe success\n", data->phy_mode); + + return 0; +} + +static int cdns_starfive_remove_core(struct device *dev, void *c) +{ + struct platform_device *pdev = to_platform_device(dev); + + platform_device_unregister(pdev); + + return 0; +} + +static int cdns_starfive_remove(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct cdns_starfive *data = dev_get_drvdata(dev); + + pm_runtime_get_sync(dev); + device_for_each_child(dev, NULL, cdns_starfive_remove_core); + + set_phy_power_off(data); + phy_exit(data->usb2_phy); + phy_exit(data->usb3_phy); + + reset_control_assert(data->resets); + clk_bulk_disable_unprepare(data->num_clks, data->clks); + pm_runtime_disable(dev); + pm_runtime_put_noidle(dev); + platform_set_drvdata(pdev, NULL); + + return 0; +} + +#ifdef CONFIG_PM +static int cdns_starfive_resume(struct device *dev) +{ + struct cdns_starfive *data = dev_get_drvdata(dev); + int ret; + + ret = clk_bulk_prepare_enable(data->num_clks, data->clks); + if (ret) + return ret; + + ret = reset_control_deassert(data->resets); + if (ret) + return ret; + + ret = cdns3_starfive_phy_init(dev, data); + + return ret; +} + +static int cdns_starfive_suspend(struct device *dev) +{ + struct cdns_starfive *data = dev_get_drvdata(dev); + + set_phy_power_off(data); + phy_exit(data->usb2_phy); + phy_exit(data->usb3_phy); + reset_control_assert(data->resets); + clk_bulk_disable_unprepare(data->num_clks, data->clks); + + return 0; +} +#endif + +static const struct dev_pm_ops cdns_starfive_pm_ops = { + SET_RUNTIME_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(cdns_starfive_suspend, cdns_starfive_resume) +}; + +static const struct of_device_id cdns_starfive_of_match[] = { + { .compatible = "starfive,jh7110-usb", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, cdns_starfive_of_match); + +static struct platform_driver cdns_starfive_driver = { + .probe = cdns_starfive_probe, + .remove = cdns_starfive_remove, + .driver = { + .name = "cdns3-starfive", + .of_match_table = cdns_starfive_of_match, + .pm = &cdns_starfive_pm_ops, + }, +}; +module_platform_driver(cdns_starfive_driver); + +MODULE_ALIAS("platform:cdns3-starfive"); +MODULE_AUTHOR("YanHong Wang <yanhong.wang@starfivetech.com>"); +MODULE_AUTHOR("Mason Huo <mason.huo@starfivetech.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Cadence USB3 StarFive Glue Layer"); diff --git a/drivers/usb/cdns3/core.h b/drivers/usb/cdns3/core.h index 2d332a788871..8d44ab504898 100644 --- a/drivers/usb/cdns3/core.h +++ b/drivers/usb/cdns3/core.h @@ -38,6 +38,9 @@ struct cdns_role_driver { }; #define CDNS_XHCI_RESOURCES_NUM 2 +#define CDNS_IOMEM_RESOURCES_NUM 3 +#define CDNS_IRQ_RESOURCES_NUM 4 +#define CDNS_RESOURCES_NUM (CDNS_IOMEM_RESOURCES_NUM + CDNS_IRQ_RESOURCES_NUM) struct cdns3_platform_data { int (*platform_suspend)(struct device *dev,
Adds Specific Glue layer to support USB peripherals on StarFive JH7110 SoC. There is a Cadence USB3 core for JH7110 SoCs, the cdns core is the child of this USB wrapper module device. Signed-off-by: Minda Chen <minda.chen@starfivetech.com> --- MAINTAINERS | 7 + drivers/usb/cdns3/Kconfig | 11 + drivers/usb/cdns3/Makefile | 1 + drivers/usb/cdns3/cdns3-starfive.c | 378 +++++++++++++++++++++++++++++ drivers/usb/cdns3/core.h | 3 + 5 files changed, 400 insertions(+) create mode 100644 drivers/usb/cdns3/cdns3-starfive.c