| Message ID | 20230420110052.3182-7-minda.chen@starfivetech.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add JH7110 USB and USB PHY driver support | expand |
On Thu, Apr 20, 2023 at 7:01 PM Minda Chen <minda.chen@starfivetech.com> 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> Acked-by: Peter Chen <peter.chen@kernel.org> Peter > --- > MAINTAINERS | 6 + > drivers/usb/cdns3/Kconfig | 11 + > drivers/usb/cdns3/Makefile | 1 + > drivers/usb/cdns3/cdns3-starfive.c | 390 +++++++++++++++++++++++++++++ > drivers/usb/cdns3/core.h | 3 + > 5 files changed, 411 insertions(+) > create mode 100644 drivers/usb/cdns3/cdns3-starfive.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index 8e0f755ba91b..3164a5cef6ee 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -19976,6 +19976,12 @@ 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: 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..afe1c6652660 > --- /dev/null > +++ b/drivers/usb/cdns3/cdns3-starfive.c > @@ -0,0 +1,390 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/** > + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller > + * > + * Copyright (C) 2023 StarFive Technology Co., Ltd. > + * > + * 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 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; > + > + 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) { > + dev_err(data->dev, "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 void cdns_clk_rst_deinit(struct cdns_starfive *data) > +{ > + reset_control_assert(data->resets); > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > +} > + > +static int cdns_starfive_phy_init(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; > + > + phy_set_mode(data->usb2_phy, data->phy_mode); > + phy_set_mode(data->usb3_phy, data->phy_mode); > + > + ret = set_phy_power_on(data); > + if (ret) > + goto err_phy_power_on; > + > + return 0; > + > +err_phy_power_on: > + phy_exit(data->usb3_phy); > +err_phy3_init: > + phy_exit(data->usb2_phy); > + return ret; > +} > + > +static void cdns_starfive_phy_deinit(struct cdns_starfive *data) > +{ > + phy_power_off(data->usb3_phy); > + phy_power_off(data->usb2_phy); > + phy_exit(data->usb3_phy); > + phy_exit(data->usb2_phy); > +} > + > +static int cdns_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; > + > + 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"); > + > + data->usb2_phy = devm_phy_optional_get(dev, "usb2"); > + 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"); > + if (IS_ERR(data->usb3_phy)) > + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), > + "Failed to parse usb3 PHY\n"); > + > + cdns_mode_init(pdev, data); > + > + ret = cdns_clk_rst_init(data); > + if (ret) > + return ret; > + > + ret = cdns_starfive_phy_init(data); > + if (ret) { > + dev_err(dev, "Failed to init PHY\n"); > + goto err_clk_init; > + } > + > + ret = cdns_starfive_platform_device_add(pdev, data); > + if (ret) { > + dev_err(dev, "Failed to create children\n"); > + goto err_phy_init; > + } > + > + 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; > + > +err_phy_init: > + cdns_starfive_phy_deinit(data); > +err_clk_init: > + cdns_clk_rst_deinit(data); > + return ret; > +} > + > +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); > + > + cdns_starfive_phy_deinit(data); > + cdns_clk_rst_deinit(data); > + 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) { > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + return ret; > + } > + > + ret = cdns_starfive_phy_init(data); > + if (ret) > + cdns_clk_rst_deinit(data); > + > + return ret; > +} > + > +static int cdns_starfive_suspend(struct device *dev) > +{ > + struct cdns_starfive *data = dev_get_drvdata(dev); > + > + cdns_starfive_phy_deinit(data); > + cdns_clk_rst_deinit(data); > + 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 >
Hi, On 20/04/2023 14:00, 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 | 6 + > drivers/usb/cdns3/Kconfig | 11 + > drivers/usb/cdns3/Makefile | 1 + > drivers/usb/cdns3/cdns3-starfive.c | 390 +++++++++++++++++++++++++++++ > drivers/usb/cdns3/core.h | 3 + > 5 files changed, 411 insertions(+) > create mode 100644 drivers/usb/cdns3/cdns3-starfive.c > > diff --git a/MAINTAINERS b/MAINTAINERS > index 8e0f755ba91b..3164a5cef6ee 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -19976,6 +19976,12 @@ 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: 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..afe1c6652660 > --- /dev/null > +++ b/drivers/usb/cdns3/cdns3-starfive.c > @@ -0,0 +1,390 @@ > +// SPDX-License-Identifier: GPL-2.0 > +/** > + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller > + * > + * Copyright (C) 2023 StarFive Technology Co., Ltd. > + * > + * 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 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; > + > + 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) { > + dev_err(data->dev, "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 void cdns_clk_rst_deinit(struct cdns_starfive *data) > +{ > + reset_control_assert(data->resets); > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > +} > + > +static int cdns_starfive_phy_init(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; > + > + phy_set_mode(data->usb2_phy, data->phy_mode); > + phy_set_mode(data->usb3_phy, data->phy_mode); > + > + ret = set_phy_power_on(data); > + if (ret) > + goto err_phy_power_on; > + > + return 0; > + > +err_phy_power_on: > + phy_exit(data->usb3_phy); > +err_phy3_init: > + phy_exit(data->usb2_phy); > + return ret; > +} > + > +static void cdns_starfive_phy_deinit(struct cdns_starfive *data) > +{ > + phy_power_off(data->usb3_phy); > + phy_power_off(data->usb2_phy); > + phy_exit(data->usb3_phy); > + phy_exit(data->usb2_phy); > +} > + > +static int cdns_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); This could be done as last step when you are sure probe won't fail. > + > + 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; > + > + 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"); > + > + data->usb2_phy = devm_phy_optional_get(dev, "usb2"); > + 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"); > + if (IS_ERR(data->usb3_phy)) > + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), > + "Failed to parse usb3 PHY\n"); > + > + cdns_mode_init(pdev, data); > + > + ret = cdns_clk_rst_init(data); > + if (ret) > + return ret; > + > + ret = cdns_starfive_phy_init(data); > + if (ret) { > + dev_err(dev, "Failed to init PHY\n"); > + goto err_clk_init; > + } > + > + ret = cdns_starfive_platform_device_add(pdev, data); > + if (ret) { > + dev_err(dev, "Failed to create children\n"); > + goto err_phy_init; > + } > + > + 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); Not required. > + > + return 0; > + > +err_phy_init: > + cdns_starfive_phy_deinit(data); > +err_clk_init: > + cdns_clk_rst_deinit(data); > + return ret; > +} > + > +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); > + > + cdns_starfive_phy_deinit(data); > + cdns_clk_rst_deinit(data); both of these will happen on pm_runtime_put() no? > + 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) { > + clk_bulk_disable_unprepare(data->num_clks, data->clks); > + return ret; > + } how about just calling cdns_clk_rst_init() instead? > + > + ret = cdns_starfive_phy_init(data); > + if (ret) > + cdns_clk_rst_deinit(data); > + > + return ret; > +} > + > +static int cdns_starfive_suspend(struct device *dev) > +{ > + struct cdns_starfive *data = dev_get_drvdata(dev); > + > + cdns_starfive_phy_deinit(data); > + cdns_clk_rst_deinit(data); > + 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) So both runtime PM and System sleep use same suspend/resume functions? > +}; > + > +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, cheers, -roger
diff --git a/MAINTAINERS b/MAINTAINERS index 8e0f755ba91b..3164a5cef6ee 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19976,6 +19976,12 @@ 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: 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..afe1c6652660 --- /dev/null +++ b/drivers/usb/cdns3/cdns3-starfive.c @@ -0,0 +1,390 @@ +// SPDX-License-Identifier: GPL-2.0 +/** + * cdns3-starfive.c - StarFive specific Glue layer for Cadence USB Controller + * + * Copyright (C) 2023 StarFive Technology Co., Ltd. + * + * 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 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; + + 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) { + dev_err(data->dev, "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 void cdns_clk_rst_deinit(struct cdns_starfive *data) +{ + reset_control_assert(data->resets); + clk_bulk_disable_unprepare(data->num_clks, data->clks); +} + +static int cdns_starfive_phy_init(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; + + phy_set_mode(data->usb2_phy, data->phy_mode); + phy_set_mode(data->usb3_phy, data->phy_mode); + + ret = set_phy_power_on(data); + if (ret) + goto err_phy_power_on; + + return 0; + +err_phy_power_on: + phy_exit(data->usb3_phy); +err_phy3_init: + phy_exit(data->usb2_phy); + return ret; +} + +static void cdns_starfive_phy_deinit(struct cdns_starfive *data) +{ + phy_power_off(data->usb3_phy); + phy_power_off(data->usb2_phy); + phy_exit(data->usb3_phy); + phy_exit(data->usb2_phy); +} + +static int cdns_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; + + 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"); + + data->usb2_phy = devm_phy_optional_get(dev, "usb2"); + 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"); + if (IS_ERR(data->usb3_phy)) + return dev_err_probe(dev, PTR_ERR(data->usb3_phy), + "Failed to parse usb3 PHY\n"); + + cdns_mode_init(pdev, data); + + ret = cdns_clk_rst_init(data); + if (ret) + return ret; + + ret = cdns_starfive_phy_init(data); + if (ret) { + dev_err(dev, "Failed to init PHY\n"); + goto err_clk_init; + } + + ret = cdns_starfive_platform_device_add(pdev, data); + if (ret) { + dev_err(dev, "Failed to create children\n"); + goto err_phy_init; + } + + 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; + +err_phy_init: + cdns_starfive_phy_deinit(data); +err_clk_init: + cdns_clk_rst_deinit(data); + return ret; +} + +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); + + cdns_starfive_phy_deinit(data); + cdns_clk_rst_deinit(data); + 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) { + clk_bulk_disable_unprepare(data->num_clks, data->clks); + return ret; + } + + ret = cdns_starfive_phy_init(data); + if (ret) + cdns_clk_rst_deinit(data); + + return ret; +} + +static int cdns_starfive_suspend(struct device *dev) +{ + struct cdns_starfive *data = dev_get_drvdata(dev); + + cdns_starfive_phy_deinit(data); + cdns_clk_rst_deinit(data); + 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 | 6 + drivers/usb/cdns3/Kconfig | 11 + drivers/usb/cdns3/Makefile | 1 + drivers/usb/cdns3/cdns3-starfive.c | 390 +++++++++++++++++++++++++++++ drivers/usb/cdns3/core.h | 3 + 5 files changed, 411 insertions(+) create mode 100644 drivers/usb/cdns3/cdns3-starfive.c