/* * Sonics Silicon Backplane * Broadcom USB-core driver (SSB bus glue) * * Copyright 2011-2012 Hauke Mehrtens * * Based on ssb-ohci driver * Copyright 2007 Michael Buesch * * Derived from the OHCI-PCI driver * Copyright 1999 Roman Weissgaerber * Copyright 2000-2002 David Brownell * Copyright 1999 Linus Torvalds * Copyright 1999 Gregory P. Smith * * Derived from the USBcore related parts of Broadcom-SB * Copyright 2005-2011 Broadcom Corporation * * Licensed under the GNU/GPL. See COPYING for details. */ #include #include #include #include #include #include #include MODULE_AUTHOR("Hauke Mehrtens"); MODULE_DESCRIPTION("Common USB driver for SSB Bus"); MODULE_LICENSE("GPL"); #define SSB_HCD_TMSLOW_HOSTMODE (1 << 29) struct ssb_hcd_device { struct platform_device *ehci_dev; struct platform_device *ohci_dev; u32 enable_flags; }; static void ssb_hcd_5354wa(struct ssb_device *dev) { #ifdef CONFIG_SSB_DRIVER_MIPS /* Work around for 5354 failures */ if (dev->id.revision == 2 && dev->bus->chip_id == 0x5354) { /* Change syn01 reg */ ssb_write32(dev, 0x894, 0x00fe00fe); /* Change syn03 reg */ ssb_write32(dev, 0x89c, ssb_read32(dev, 0x89c) | 0x1); } #endif } static void ssb_hcd_usb20wa(struct ssb_device *dev) { if (dev->id.coreid == SSB_DEV_USB20_HOST) { /* * USB 2.0 special considerations: * * In addition to the standard SSB reset sequence, the Host * Control Register must be programmed to bring the USB core * and various phy components out of reset. */ ssb_write32(dev, 0x200, 0x7ff); /* Change Flush control reg */ ssb_write32(dev, 0x400, ssb_read32(dev, 0x400) & ~8); ssb_read32(dev, 0x400); /* Change Shim control reg */ ssb_write32(dev, 0x304, ssb_read32(dev, 0x304) & ~0x100); ssb_read32(dev, 0x304); udelay(1); ssb_hcd_5354wa(dev); } } /* based on arch/mips/brcm-boards/bcm947xx/pcibios.c */ static u32 ssb_hcd_init_chip(struct ssb_device *dev) { u32 flags = 0; if (dev->id.coreid == SSB_DEV_USB11_HOSTDEV) /* Put the device into host-mode. */ flags |= SSB_HCD_TMSLOW_HOSTMODE; ssb_device_enable(dev, flags); ssb_hcd_usb20wa(dev); return flags; } static const struct usb_ehci_pdata ehci_pdata = { }; static const struct usb_ohci_pdata ohci_pdata = { }; static struct platform_device *ssb_hcd_create_pdev(struct ssb_device *dev, bool ohci, u32 addr, u32 len) { struct platform_device *hci_dev; struct resource hci_res[2]; int ret; memset(hci_res, 0, sizeof(hci_res)); hci_res[0].start = addr; hci_res[0].end = hci_res[0].start + len - 1; hci_res[0].flags = IORESOURCE_MEM; hci_res[1].start = dev->irq; hci_res[1].flags = IORESOURCE_IRQ; hci_dev = platform_device_alloc(ohci ? "ohci-platform" : "ehci-platform" , 0); if (!hci_dev) return ERR_PTR(-ENOMEM); hci_dev->dev.parent = dev->dev; hci_dev->dev.dma_mask = &hci_dev->dev.coherent_dma_mask; ret = platform_device_add_resources(hci_dev, hci_res, ARRAY_SIZE(hci_res)); if (ret) goto err_alloc; if (ohci) ret = platform_device_add_data(hci_dev, &ohci_pdata, sizeof(ohci_pdata)); else ret = platform_device_add_data(hci_dev, &ehci_pdata, sizeof(ehci_pdata)); if (ret) goto err_alloc; ret = platform_device_add(hci_dev); if (ret) goto err_alloc; return hci_dev; err_alloc: platform_device_put(hci_dev); return ERR_PTR(ret); } static int ssb_hcd_probe(struct ssb_device *dev, const struct ssb_device_id *id) { int err, tmp; int start, len; u16 chipid_top; u16 coreid = dev->id.coreid; struct ssb_hcd_device *usb_dev; /* USBcores are only connected on embedded devices. */ chipid_top = (dev->bus->chip_id & 0xFF00); if (chipid_top != 0x4700 && chipid_top != 0x5300) return -ENODEV; /* TODO: Probably need checks here; is the core connected? */ if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32))) return -EOPNOTSUPP; usb_dev = devm_kzalloc(dev->dev, sizeof(struct ssb_hcd_device), GFP_KERNEL); if (!usb_dev) return -ENOMEM; /* We currently always attach SSB_DEV_USB11_HOSTDEV * as HOST OHCI. If we want to attach it as Client device, * we must branch here and call into the (yet to * be written) Client mode driver. Same for remove(). */ usb_dev->enable_flags = ssb_hcd_init_chip(dev); tmp = ssb_read32(dev, SSB_ADMATCH0); start = ssb_admatch_base(tmp); len = (coreid == SSB_DEV_USB20_HOST) ? 0x800 : ssb_admatch_size(tmp); usb_dev->ohci_dev = ssb_hcd_create_pdev(dev, true, start, len); if (IS_ERR(usb_dev->ohci_dev)) return PTR_ERR(usb_dev->ohci_dev); if (coreid == SSB_DEV_USB20_HOST) { start = ssb_admatch_base(tmp) + 0x800; /* ehci core offset */ usb_dev->ehci_dev = ssb_hcd_create_pdev(dev, false, start, len); if (IS_ERR(usb_dev->ehci_dev)) { err = PTR_ERR(usb_dev->ehci_dev); goto err_unregister_ohci_dev; } } ssb_set_drvdata(dev, usb_dev); return 0; err_unregister_ohci_dev: platform_device_unregister(usb_dev->ohci_dev); return err; } static void ssb_hcd_remove(struct ssb_device *dev) { struct ssb_hcd_device *usb_dev = ssb_get_drvdata(dev); struct platform_device *ohci_dev = usb_dev->ohci_dev; struct platform_device *ehci_dev = usb_dev->ehci_dev; if (ohci_dev) platform_device_unregister(ohci_dev); if (ehci_dev) platform_device_unregister(ehci_dev); ssb_device_disable(dev, 0); } static void ssb_hcd_shutdown(struct ssb_device *dev) { ssb_device_disable(dev, 0); } #ifdef CONFIG_PM static int ssb_hcd_suspend(struct ssb_device *dev, pm_message_t state) { ssb_device_disable(dev, 0); return 0; } static int ssb_hcd_resume(struct ssb_device *dev) { struct ssb_hcd_device *usb_dev = ssb_get_drvdata(dev); ssb_device_enable(dev, usb_dev->enable_flags); return 0; } #else /* !CONFIG_PM */ #define ssb_hcd_suspend NULL #define ssb_hcd_resume NULL #endif /* CONFIG_PM */ static const struct ssb_device_id ssb_hcd_table[] = { SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOSTDEV, SSB_ANY_REV), SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB11_HOST, SSB_ANY_REV), SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_USB20_HOST, SSB_ANY_REV), {}, }; MODULE_DEVICE_TABLE(ssb, ssb_hcd_table); static struct ssb_driver ssb_hcd_driver = { .name = KBUILD_MODNAME, .id_table = ssb_hcd_table, .probe = ssb_hcd_probe, .remove = ssb_hcd_remove, .shutdown = ssb_hcd_shutdown, .suspend = ssb_hcd_suspend, .resume = ssb_hcd_resume, }; static int __init ssb_hcd_init(void) { return ssb_driver_register(&ssb_hcd_driver); } module_init(ssb_hcd_init); static void __exit ssb_hcd_exit(void) { ssb_driver_unregister(&ssb_hcd_driver); } module_exit(ssb_hcd_exit); git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes and cleanups from David Miller: 1) Use rb_entry() instead of hardcoded container_of(), from Geliang Tang. 2) Use correct memory barriers in stammac driver, from Pavel Machek. 3) Fix assoc bind address handling in SCTP, from Xin Long. 4) Make the length check for UFO handling consistent between __ip_append_data() and ip_finish_output(), from Zheng Li. 5) HSI driver compatible strings were busted fro hix5hd2, from Dongpo Li. 6) Handle devm_ioremap() errors properly in cavium driver, from Arvind Yadav. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (22 commits) RDS: use rb_entry() net_sched: sch_netem: use rb_entry() net_sched: sch_fq: use rb_entry() net/mlx5: use rb_entry() ethernet: sfc: Add Kconfig entry for vendor Solarflare sctp: not copying duplicate addrs to the assoc's bind address list sctp: reduce indent level in sctp_copy_local_addr_list ARM: dts: hix5hd2: don't change the existing compatible string net: hix5hd2_gmac: fix compatible strings name openvswitch: Add a missing break statement. net: netcp: ethss: fix 10gbe host port tx pri map configuration net: netcp: ethss: fix errors in ethtool ops fsl/fman: enable compilation on ARM64 fsl/fman: A007273 only applies to PPC SoCs powerpc: fsl/fman: remove fsl,fman from of_device_ids[] fsl/fman: fix 1G support for QSGMII interfaces dt: bindings: net: use boolean dt properties for eee broken modes net: phy: use boolean dt properties for eee broken modes net: phy: fix sign type error in genphy_config_eee_advert ipv4: Should use consistent conditional judgement for ip fragment in __ip_append_data and ip_finish_output ...
Diffstat (limited to 'include/net/hwbm.h')