diff options
author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/drivers/usb/dwc3/dwc3-pci.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/drivers/usb/dwc3/dwc3-pci.c')
-rw-r--r-- | kernel/drivers/usb/dwc3/dwc3-pci.c | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/kernel/drivers/usb/dwc3/dwc3-pci.c b/kernel/drivers/usb/dwc3/dwc3-pci.c new file mode 100644 index 000000000..b773fb53d --- /dev/null +++ b/kernel/drivers/usb/dwc3/dwc3-pci.c @@ -0,0 +1,160 @@ +/** + * dwc3-pci.c - PCI Specific glue layer + * + * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com + * + * Authors: Felipe Balbi <balbi@ti.com>, + * Sebastian Andrzej Siewior <bigeasy@linutronix.de> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 of + * the License as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/pci.h> +#include <linux/platform_device.h> + +#include "platform_data.h" + +#define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd +#define PCI_DEVICE_ID_INTEL_BYT 0x0f37 +#define PCI_DEVICE_ID_INTEL_MRFLD 0x119e +#define PCI_DEVICE_ID_INTEL_BSW 0x22B7 +#define PCI_DEVICE_ID_INTEL_SPTLP 0x9d30 +#define PCI_DEVICE_ID_INTEL_SPTH 0xa130 + +static int dwc3_pci_quirks(struct pci_dev *pdev) +{ + if (pdev->vendor == PCI_VENDOR_ID_AMD && + pdev->device == PCI_DEVICE_ID_AMD_NL_USB) { + struct dwc3_platform_data pdata; + + memset(&pdata, 0, sizeof(pdata)); + + pdata.has_lpm_erratum = true; + pdata.lpm_nyet_threshold = 0xf; + + pdata.u2exit_lfps_quirk = true; + pdata.u2ss_inp3_quirk = true; + pdata.req_p1p2p3_quirk = true; + pdata.del_p1p2p3_quirk = true; + pdata.del_phy_power_chg_quirk = true; + pdata.lfps_filter_quirk = true; + pdata.rx_detect_poll_quirk = true; + + pdata.tx_de_emphasis_quirk = true; + pdata.tx_de_emphasis = 1; + + /* + * FIXME these quirks should be removed when AMD NL + * taps out + */ + pdata.disable_scramble_quirk = true; + pdata.dis_u3_susphy_quirk = true; + pdata.dis_u2_susphy_quirk = true; + + return platform_device_add_data(pci_get_drvdata(pdev), &pdata, + sizeof(pdata)); + } + + return 0; +} + +static int dwc3_pci_probe(struct pci_dev *pci, + const struct pci_device_id *id) +{ + struct resource res[2]; + struct platform_device *dwc3; + int ret; + struct device *dev = &pci->dev; + + ret = pcim_enable_device(pci); + if (ret) { + dev_err(dev, "failed to enable pci device\n"); + return -ENODEV; + } + + pci_set_master(pci); + + dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); + if (!dwc3) { + dev_err(dev, "couldn't allocate dwc3 device\n"); + return -ENOMEM; + } + + memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); + + res[0].start = pci_resource_start(pci, 0); + res[0].end = pci_resource_end(pci, 0); + res[0].name = "dwc_usb3"; + res[0].flags = IORESOURCE_MEM; + + res[1].start = pci->irq; + res[1].name = "dwc_usb3"; + res[1].flags = IORESOURCE_IRQ; + + ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); + if (ret) { + dev_err(dev, "couldn't add resources to dwc3 device\n"); + return ret; + } + + pci_set_drvdata(pci, dwc3); + ret = dwc3_pci_quirks(pci); + if (ret) + goto err; + + dwc3->dev.parent = dev; + + ret = platform_device_add(dwc3); + if (ret) { + dev_err(dev, "failed to register dwc3 device\n"); + goto err; + } + + return 0; +err: + platform_device_put(dwc3); + return ret; +} + +static void dwc3_pci_remove(struct pci_dev *pci) +{ + platform_device_unregister(pci_get_drvdata(pci)); +} + +static const struct pci_device_id dwc3_pci_id_table[] = { + { + PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, + PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), + }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BSW), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTLP), }, + { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SPTH), }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_NL_USB), }, + { } /* Terminating Entry */ +}; +MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); + +static struct pci_driver dwc3_pci_driver = { + .name = "dwc3-pci", + .id_table = dwc3_pci_id_table, + .probe = dwc3_pci_probe, + .remove = dwc3_pci_remove, +}; + +MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); + +module_pci_driver(dwc3_pci_driver); |