diff options
Diffstat (limited to 'drivers/usb/cdns3/cdns3-pci-wrap.c')
| -rw-r--r-- | drivers/usb/cdns3/cdns3-pci-wrap.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/drivers/usb/cdns3/cdns3-pci-wrap.c b/drivers/usb/cdns3/cdns3-pci-wrap.c deleted file mode 100644 index 65b61ea246b1..000000000000 --- a/drivers/usb/cdns3/cdns3-pci-wrap.c +++ /dev/null @@ -1,157 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Cadence USBSS PCI Glue driver - * - * Copyright (C) 2018-2019 Cadence. - * - * Author: Pawel Laszczak <pawell@cadence.com> - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/platform_device.h> -#include <linux/dma-mapping.h> -#include <linux/slab.h> - -struct cdns3_wrap { - struct platform_device *plat_dev; - struct pci_dev *hg_dev; - struct resource dev_res[6]; -}; - -#define RES_IRQ_HOST_ID 0 -#define RES_IRQ_PERIPHERAL_ID 1 -#define RES_IRQ_OTG_ID 2 -#define RES_HOST_ID 3 -#define RES_DEV_ID 4 -#define RES_DRD_ID 5 - -#define PCI_BAR_HOST 0 -#define PCI_BAR_DEV 2 -#define PCI_BAR_OTG 4 - -#define PCI_DEV_FN_HOST_DEVICE 0 -#define PCI_DEV_FN_OTG 1 - -#define PCI_DRIVER_NAME "cdns3-pci-usbss" -#define PLAT_DRIVER_NAME "cdns-usb3" - -#define CDNS_VENDOR_ID 0x17cd -#define CDNS_DEVICE_ID 0x0100 - -static int cdns3_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - struct platform_device_info plat_info; - struct cdns3_wrap *wrap; - struct resource *res; - int err; - - /* - * for GADGET/HOST PCI (devfn) function number is 0, - * for OTG PCI (devfn) function number is 1 - */ - if (!id || pdev->devfn != PCI_DEV_FN_HOST_DEVICE) - return -EINVAL; - - err = pcim_enable_device(pdev); - if (err) { - dev_err(&pdev->dev, "Enabling PCI device has failed %d\n", err); - return err; - } - - pci_set_master(pdev); - wrap = devm_kzalloc(&pdev->dev, sizeof(*wrap), GFP_KERNEL); - if (!wrap) { - pci_disable_device(pdev); - return -ENOMEM; - } - - /* function 0: host(BAR_0) + device(BAR_1) + otg(BAR_2)). */ - dev_dbg(&pdev->dev, "Initialize Device resources\n"); - res = wrap->dev_res; - - res[RES_DEV_ID].start = pci_resource_start(pdev, PCI_BAR_DEV); - res[RES_DEV_ID].end = pci_resource_end(pdev, PCI_BAR_DEV); - res[RES_DEV_ID].name = "dev"; - res[RES_DEV_ID].flags = IORESOURCE_MEM; - dev_dbg(&pdev->dev, "USBSS-DEV physical base addr: %pa\n", - &res[RES_DEV_ID].start); - - res[RES_HOST_ID].start = pci_resource_start(pdev, PCI_BAR_HOST); - res[RES_HOST_ID].end = pci_resource_end(pdev, PCI_BAR_HOST); - res[RES_HOST_ID].name = "xhci"; - res[RES_HOST_ID].flags = IORESOURCE_MEM; - dev_dbg(&pdev->dev, "USBSS-XHCI physical base addr: %pa\n", - &res[RES_HOST_ID].start); - - res[RES_DRD_ID].start = pci_resource_start(pdev, PCI_BAR_OTG); - res[RES_DRD_ID].end = pci_resource_end(pdev, PCI_BAR_OTG); - res[RES_DRD_ID].name = "otg"; - res[RES_DRD_ID].flags = IORESOURCE_MEM; - dev_dbg(&pdev->dev, "USBSS-DRD physical base addr: %pa\n", - &res[RES_DRD_ID].start); - - /* Interrupt for XHCI */ - wrap->dev_res[RES_IRQ_HOST_ID].start = pdev->irq; - wrap->dev_res[RES_IRQ_HOST_ID].name = "host"; - wrap->dev_res[RES_IRQ_HOST_ID].flags = IORESOURCE_IRQ; - - /* Interrupt device. It's the same as for HOST. */ - wrap->dev_res[RES_IRQ_PERIPHERAL_ID].start = pdev->irq; - wrap->dev_res[RES_IRQ_PERIPHERAL_ID].name = "peripheral"; - wrap->dev_res[RES_IRQ_PERIPHERAL_ID].flags = IORESOURCE_IRQ; - - /* Interrupt for OTG/DRD. */ - wrap->dev_res[RES_IRQ_OTG_ID].start = pdev->irq; - wrap->dev_res[RES_IRQ_OTG_ID].name = "otg"; - wrap->dev_res[RES_IRQ_OTG_ID].flags = IORESOURCE_IRQ; - - /* set up platform device info */ - memset(&plat_info, 0, sizeof(plat_info)); - plat_info.parent = &pdev->dev; - plat_info.fwnode = pdev->dev.fwnode; - plat_info.name = PLAT_DRIVER_NAME; - plat_info.id = pdev->devfn; - plat_info.res = wrap->dev_res; - plat_info.num_res = ARRAY_SIZE(wrap->dev_res); - plat_info.dma_mask = pdev->dma_mask; - - /* register platform device */ - wrap->plat_dev = platform_device_register_full(&plat_info); - if (IS_ERR(wrap->plat_dev)) { - pci_disable_device(pdev); - return PTR_ERR(wrap->plat_dev); - } - - pci_set_drvdata(pdev, wrap); - - return err; -} - -static void cdns3_pci_remove(struct pci_dev *pdev) -{ - struct cdns3_wrap *wrap = (struct cdns3_wrap *)pci_get_drvdata(pdev); - - platform_device_unregister(wrap->plat_dev); -} - -static const struct pci_device_id cdns3_pci_ids[] = { - { PCI_DEVICE(CDNS_VENDOR_ID, CDNS_DEVICE_ID), }, - { 0, } -}; - -static struct pci_driver cdns3_pci_driver = { - .name = PCI_DRIVER_NAME, - .id_table = cdns3_pci_ids, - .probe = cdns3_pci_probe, - .remove = cdns3_pci_remove, -}; - -module_pci_driver(cdns3_pci_driver); -MODULE_DEVICE_TABLE(pci, cdns3_pci_ids); - -MODULE_AUTHOR("Pawel Laszczak <pawell@cadence.com>"); -MODULE_LICENSE("GPL v2"); -MODULE_DESCRIPTION("Cadence USBSS PCI wrapperr"); |