diff options
Diffstat (limited to 'target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch')
-rw-r--r-- | target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch | 308 |
1 files changed, 0 insertions, 308 deletions
diff --git a/target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch b/target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch deleted file mode 100644 index 7b3016892c..0000000000 --- a/target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch +++ /dev/null @@ -1,308 +0,0 @@ - ---- a/drivers/usb/host/Kconfig -+++ b/drivers/usb/host/Kconfig -@@ -630,3 +630,15 @@ config USB_HCD_BCMA - for ehci and ohci. - - If unsure, say N. -+ -+config USB_HCD_SSB -+ tristate "SSB usb host driver" -+ depends on SSB && EXPERIMENTAL -+ select USB_OHCI_HCD_PLATFORM if USB_OHCI_HCD -+ select USB_EHCI_HCD_PLATFORM if USB_EHCI_HCD -+ help -+ Enbale support for the EHCI and OCHI host controller on an bcma bus. -+ It converts the bcma driver into two platform device drivers -+ for ehci and ohci. -+ -+ If unsure, say N. ---- a/drivers/usb/host/Makefile -+++ b/drivers/usb/host/Makefile -@@ -38,3 +38,4 @@ obj-$(CONFIG_USB_FSL_MPH_DR_OF) += fsl-m - obj-$(CONFIG_USB_OCTEON2_COMMON) += octeon2-common.o - obj-$(CONFIG_MIPS_ALCHEMY) += alchemy-common.o - obj-$(CONFIG_USB_HCD_BCMA) += bcma-hcd.o -+obj-$(CONFIG_USB_HCD_SSB) += ssb-hcd.o ---- /dev/null -+++ b/drivers/usb/host/ssb-hcd.c -@@ -0,0 +1,279 @@ -+/* -+ * Sonics Silicon Backplane -+ * Broadcom USB-core driver (SSB bus glue) -+ * -+ * Copyright 2011-2012 Hauke Mehrtens <hauke@hauke-m.de> -+ * -+ * Based on ssb-ohci driver -+ * Copyright 2007 Michael Buesch <m@bues.ch> -+ * -+ * 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 <linux/ssb/ssb.h> -+#include <linux/delay.h> -+#include <linux/platform_device.h> -+#include <linux/module.h> -+#include <linux/usb/ehci_pdriver.h> -+#include <linux/usb/ohci_pdriver.h> -+ -+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 __devinit 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 __devinit 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 __devinit 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 * __devinit -+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 = -ENOMEM; -+ -+ 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 NULL; -+ -+ 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 __devinit 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(dev->dma_dev, DMA_BIT_MASK(32)) || -+ dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32))) -+ return -EOPNOTSUPP; -+ -+ usb_dev = kzalloc(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)) { -+ err = PTR_ERR(usb_dev->ohci_dev); -+ goto err_free_usb_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); -+err_free_usb_dev: -+ kfree(usb_dev); -+ return err; -+} -+ -+static void __devexit 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 __devexit 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[] __devinitconst = { -+ 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), -+ SSB_DEVTABLE_END -+}; -+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 = __devexit_p(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); |