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path: root/target/linux/brcm47xx/patches-3.2/184-USB-Add-driver-for-the-ssb-bus.patch
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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.patch308
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 7b30168..0000000
--- 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);
generated by cgit v1.1 at 2024-11-12 02:11:10 +0000