+++ /dev/null
---- a/drivers/usb/core/hub.c
-+++ b/drivers/usb/core/hub.c
-@@ -1254,7 +1254,7 @@ static void hub_quiesce(struct usb_hub *
- if (type != HUB_SUSPEND) {
- /* Disconnect all the children */
- for (i = 0; i < hdev->maxchild; ++i) {
-- if (hub->ports[i]->child)
-+ if (hub->ports[i] && hub->ports[i]->child)
- usb_disconnect(&hub->ports[i]->child);
- }
- }
---- a/drivers/usb/core/port.c
-+++ b/drivers/usb/core/port.c
-@@ -193,6 +193,7 @@ exit:
- void usb_hub_remove_port_device(struct usb_hub *hub,
- int port1)
- {
-- device_unregister(&hub->ports[port1 - 1]->dev);
-+ if (hub->ports[port1 - 1])
-+ device_unregister(&hub->ports[port1 - 1]->dev);
- }
-
---- a/drivers/usb/host/Kconfig
-+++ b/drivers/usb/host/Kconfig
-@@ -28,7 +28,11 @@ config USB_XHCI_HCD
- if USB_XHCI_HCD
-
- config USB_XHCI_PLATFORM
-- tristate
-+ bool "xHCI platform"
-+
-+config USB_MT7621_XHCI_PLATFORM
-+ bool "MTK MT7621 xHCI"
-+ depends on USB_XHCI_PLATFORM
-
- config USB_XHCI_HCD_DEBUGGING
- bool "Debugging for the xHCI host controller"
---- a/drivers/usb/host/Makefile
-+++ b/drivers/usb/host/Makefile
-@@ -13,15 +13,23 @@ fhci-$(CONFIG_FHCI_DEBUG) += fhci-dbg.o
-
- xhci-hcd-y := xhci.o xhci-mem.o
- xhci-hcd-y += xhci-ring.o xhci-hub.o xhci-dbg.o
-+ifndef CONFIG_USB_MT7621_XHCI_PLATFORM
- xhci-hcd-$(CONFIG_PCI) += xhci-pci.o
-+endif
-+
-+ifdef CONFIG_USB_MT7621_XHCI_PLATFORM
-+xhci-hcd-y += mtk-phy.o xhci-mtk-scheduler.o xhci-mtk-power.o xhci-mtk.o mtk-phy-7621.o mtk-phy-ahb.o
-+endif
-
- ifneq ($(CONFIG_USB_XHCI_PLATFORM), )
-- xhci-hcd-y += xhci-plat.o
-+xhci-hcd-y += xhci-plat.o
- endif
-
- obj-$(CONFIG_USB_WHCI_HCD) += whci/
-
-+ifndef CONFIG_USB_MT7621_XHCI_PLATFORM
- obj-$(CONFIG_PCI) += pci-quirks.o
-+endif
-
- obj-$(CONFIG_USB_EHCI_HCD) += ehci-hcd.o
- obj-$(CONFIG_USB_EHCI_PCI) += ehci-pci.o
---- a/drivers/usb/host/pci-quirks.h
-+++ b/drivers/usb/host/pci-quirks.h
-@@ -1,7 +1,7 @@
- #ifndef __LINUX_USB_PCI_QUIRKS_H
- #define __LINUX_USB_PCI_QUIRKS_H
-
--#ifdef CONFIG_PCI
-+#if defined (CONFIG_PCI) && !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
- int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
- #endif /* CONFIG_PCI */
---- a/drivers/usb/host/xhci.c
-+++ b/drivers/usb/host/xhci.c
-@@ -30,6 +30,16 @@
-
- #include "xhci.h"
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+#include <asm/uaccess.h>
-+#include <linux/dma-mapping.h>
-+#include <linux/platform_device.h>
-+#include "mtk-phy.h"
-+#include "xhci-mtk-scheduler.h"
-+#include "xhci-mtk-power.h"
-+#include "xhci-mtk.h"
-+#endif
-+
- #define DRIVER_AUTHOR "Sarah Sharp"
- #define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver"
-
-@@ -38,6 +48,18 @@ static int link_quirk;
- module_param(link_quirk, int, S_IRUGO | S_IWUSR);
- MODULE_PARM_DESC(link_quirk, "Don't clear the chain bit on a link TRB");
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+long xhci_mtk_test_unlock_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
-+static struct file_operations xhci_mtk_test_fops = {
-+ .owner = THIS_MODULE,
-+ .read = xhci_mtk_test_read,
-+ .write = xhci_mtk_test_write,
-+ .unlocked_ioctl = xhci_mtk_test_unlock_ioctl,
-+ .open = xhci_mtk_test_open,
-+ .release = xhci_mtk_test_release,
-+};
-+#endif
-+
- /* TODO: copied from ehci-hcd.c - can this be refactored? */
- /*
- * xhci_handshake - spin reading hc until handshake completes or fails
-@@ -189,7 +211,7 @@ int xhci_reset(struct xhci_hcd *xhci)
- return ret;
- }
-
--#ifdef CONFIG_PCI
-+#if defined (CONFIG_PCI) && !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- static int xhci_free_msi(struct xhci_hcd *xhci)
- {
- int i;
-@@ -389,6 +411,7 @@ static int xhci_try_enable_msi(struct us
- return ret;
- }
- hcd->irq = pdev->irq;
-+
- return 0;
- }
-
-@@ -430,6 +453,11 @@ static void compliance_mode_recovery(uns
- xhci_dbg(xhci, "Attempting compliance mode recovery\n");
- hcd = xhci->shared_hcd;
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ temp |= (1 << 31);
-+ xhci_writel(xhci, temp, xhci->usb3_ports[i]);
-+#endif
-+
- if (hcd->state == HC_STATE_SUSPENDED)
- usb_hcd_resume_root_hub(hcd);
-
-@@ -478,6 +506,9 @@ bool xhci_compliance_mode_recovery_timer
- {
- const char *dmi_product_name, *dmi_sys_vendor;
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ return true;
-+#endif
- dmi_product_name = dmi_get_system_info(DMI_PRODUCT_NAME);
- dmi_sys_vendor = dmi_get_system_info(DMI_SYS_VENDOR);
- if (!dmi_product_name || !dmi_sys_vendor)
-@@ -521,6 +552,10 @@ int xhci_init(struct usb_hcd *hcd)
- } else {
- xhci_dbg(xhci, "xHCI doesn't need link TRB QUIRK\n");
- }
-+
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ mtk_xhci_scheduler_init();
-+#endif
- retval = xhci_mem_init(xhci, GFP_KERNEL);
- xhci_dbg(xhci, "Finished xhci_init\n");
-
-@@ -664,7 +699,11 @@ int xhci_run(struct usb_hcd *hcd)
- xhci_dbg(xhci, "// Set the interrupt modulation register\n");
- temp = xhci_readl(xhci, &xhci->ir_set->irq_control);
- temp &= ~ER_IRQ_INTERVAL_MASK;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ temp |= (u32) 16;
-+#else
- temp |= (u32) 160;
-+#endif
- xhci_writel(xhci, temp, &xhci->ir_set->irq_control);
-
- /* Set the HCD state before we enable the irqs */
-@@ -685,6 +724,9 @@ int xhci_run(struct usb_hcd *hcd)
- xhci_queue_vendor_command(xhci, 0, 0, 0,
- TRB_TYPE(TRB_NEC_GET_FW));
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ enableXhciAllPortPower(xhci);
-+#endif
- xhci_dbg(xhci, "Finished xhci_run for USB2 roothub\n");
- return 0;
- }
-@@ -1002,7 +1044,6 @@ int xhci_resume(struct xhci_hcd *xhci, b
-
- /* If restore operation fails, re-initialize the HC during resume */
- if ((temp & STS_SRE) || hibernated) {
--
- if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
- !(xhci_all_ports_seen_u0(xhci))) {
- del_timer_sync(&xhci->comp_mode_recovery_timer);
-@@ -1586,6 +1627,13 @@ int xhci_drop_endpoint(struct usb_hcd *h
- u32 drop_flag;
- u32 new_add_flags, new_drop_flags, new_slot_info;
- int ret;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+#if MTK_SCH_NEW
-+ struct sch_ep *sch_ep = NULL;
-+ int isTT;
-+ int ep_type;
-+#endif
-+#endif
-
- ret = xhci_check_args(hcd, udev, ep, 1, true, __func__);
- if (ret <= 0)
-@@ -1637,6 +1685,40 @@ int xhci_drop_endpoint(struct usb_hcd *h
-
- xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+#if MTK_SCH_NEW
-+ slot_ctx = xhci_get_slot_ctx(xhci, xhci->devs[udev->slot_id]->out_ctx);
-+ if ((slot_ctx->tt_info & 0xff) > 0) {
-+ isTT = 1;
-+ }
-+ else {
-+ isTT = 0;
-+ }
-+ if (usb_endpoint_xfer_int(&ep->desc)) {
-+ ep_type = USB_EP_INT;
-+ }
-+ else if (usb_endpoint_xfer_isoc(&ep->desc)) {
-+ ep_type = USB_EP_ISOC;
-+ }
-+ else if (usb_endpoint_xfer_bulk(&ep->desc)) {
-+ ep_type = USB_EP_BULK;
-+ }
-+ else
-+ ep_type = USB_EP_CONTROL;
-+
-+ sch_ep = mtk_xhci_scheduler_remove_ep(udev->speed, usb_endpoint_dir_in(&ep->desc)
-+ , isTT, ep_type, (mtk_u32 *)ep);
-+ if (sch_ep != NULL) {
-+ kfree(sch_ep);
-+ }
-+ else {
-+ xhci_dbg(xhci, "[MTK]Doesn't find ep_sch instance when removing endpoint\n");
-+ }
-+#else
-+ mtk_xhci_scheduler_remove_ep(xhci, udev, ep);
-+#endif
-+#endif
-+
- xhci_dbg(xhci, "drop ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x, new slot info = %#x\n",
- (unsigned int) ep->desc.bEndpointAddress,
- udev->slot_id,
-@@ -1672,6 +1754,18 @@ int xhci_add_endpoint(struct usb_hcd *hc
- u32 new_add_flags, new_drop_flags, new_slot_info;
- struct xhci_virt_device *virt_dev;
- int ret = 0;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ struct xhci_ep_ctx *in_ep_ctx;
-+#if MTK_SCH_NEW
-+ struct sch_ep *sch_ep;
-+ int isTT;
-+ int ep_type;
-+ int maxp = 0;
-+ int burst = 0;
-+ int mult = 0;
-+ int interval;
-+#endif
-+#endif
-
- ret = xhci_check_args(hcd, udev, ep, 1, true, __func__);
- if (ret <= 0) {
-@@ -1734,6 +1828,56 @@ int xhci_add_endpoint(struct usb_hcd *hc
- return -ENOMEM;
- }
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ in_ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index);
-+#if MTK_SCH_NEW
-+ slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx);
-+ if ((slot_ctx->tt_info & 0xff) > 0) {
-+ isTT = 1;
-+ }
-+ else {
-+ isTT = 0;
-+ }
-+ if (usb_endpoint_xfer_int(&ep->desc)) {
-+ ep_type = USB_EP_INT;
-+ }
-+ else if (usb_endpoint_xfer_isoc(&ep->desc)) {
-+ ep_type = USB_EP_ISOC;
-+ }
-+ else if (usb_endpoint_xfer_bulk(&ep->desc)) {
-+ ep_type = USB_EP_BULK;
-+ }
-+ else
-+ ep_type = USB_EP_CONTROL;
-+
-+ if (udev->speed == USB_SPEED_FULL || udev->speed == USB_SPEED_HIGH
-+ || udev->speed == USB_SPEED_LOW) {
-+ maxp = ep->desc.wMaxPacketSize & 0x7FF;
-+ burst = ep->desc.wMaxPacketSize >> 11;
-+ mult = 0;
-+ }
-+ else if (udev->speed == USB_SPEED_SUPER) {
-+ maxp = ep->desc.wMaxPacketSize & 0x7FF;
-+ burst = ep->ss_ep_comp.bMaxBurst;
-+ mult = ep->ss_ep_comp.bmAttributes & 0x3;
-+ }
-+ interval = (1 << ((in_ep_ctx->ep_info >> 16) & 0xff));
-+ sch_ep = kmalloc(sizeof(struct sch_ep), GFP_KERNEL);
-+ if (mtk_xhci_scheduler_add_ep(udev->speed, usb_endpoint_dir_in(&ep->desc),
-+ isTT, ep_type, maxp, interval, burst, mult, (mtk_u32 *)ep
-+ , (mtk_u32 *)in_ep_ctx, sch_ep) != SCH_SUCCESS) {
-+ xhci_err(xhci, "[MTK] not enough bandwidth\n");
-+
-+ return -ENOSPC;
-+ }
-+#else
-+ if (mtk_xhci_scheduler_add_ep(xhci, udev, ep, in_ep_ctx) != SCH_SUCCESS) {
-+ xhci_err(xhci, "[MTK] not enough bandwidth\n");
-+
-+ return -ENOSPC;
-+ }
-+#endif
-+#endif
- ctrl_ctx->add_flags |= cpu_to_le32(added_ctxs);
- new_add_flags = le32_to_cpu(ctrl_ctx->add_flags);
-
-@@ -2697,7 +2841,7 @@ int xhci_check_bandwidth(struct usb_hcd
- if (ctrl_ctx->add_flags == cpu_to_le32(SLOT_FLAG) &&
- ctrl_ctx->drop_flags == 0)
- return 0;
--
-+
- xhci_dbg(xhci, "New Input Control Context:\n");
- slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx);
- xhci_dbg_ctx(xhci, virt_dev->in_ctx,
-@@ -4233,10 +4377,14 @@ static u16 xhci_call_host_update_timeout
- u16 *timeout)
- {
- if (state == USB3_LPM_U1) {
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (xhci->quirks & XHCI_INTEL_HOST)
-+#endif
- return xhci_calculate_intel_u1_timeout(udev, desc);
- } else {
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (xhci->quirks & XHCI_INTEL_HOST)
-+#endif
- return xhci_calculate_intel_u2_timeout(udev, desc);
- }
-
-@@ -4662,7 +4810,9 @@ int xhci_gen_setup(struct usb_hcd *hcd,
- /* Accept arbitrarily long scatter-gather lists */
- hcd->self.sg_tablesize = ~0;
- /* XHCI controllers don't stop the ep queue on short packets :| */
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- hcd->self.no_stop_on_short = 1;
-+#endif
-
- if (usb_hcd_is_primary_hcd(hcd)) {
- xhci = kzalloc(sizeof(struct xhci_hcd), GFP_KERNEL);
-@@ -4731,6 +4881,10 @@ int xhci_gen_setup(struct usb_hcd *hcd,
- goto error;
- xhci_dbg(xhci, "Reset complete\n");
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ setInitialReg();
-+#endif
-+
- temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params);
- if (HCC_64BIT_ADDR(temp)) {
- xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n");
-@@ -4755,8 +4909,21 @@ MODULE_DESCRIPTION(DRIVER_DESC);
- MODULE_AUTHOR(DRIVER_AUTHOR);
- MODULE_LICENSE("GPL");
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+static struct platform_device xhci_platform_dev = {
-+ .name = "xhci-hcd",
-+ .id = -1,
-+ .dev = {
-+ .coherent_dma_mask = 0xffffffff,
-+ },
-+};
-+#endif
-+
- static int __init xhci_hcd_init(void)
- {
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ struct platform_device *pPlatformDev;
-+#endif
- int retval;
-
- retval = xhci_register_pci();
-@@ -4769,6 +4936,33 @@ static int __init xhci_hcd_init(void)
- printk(KERN_DEBUG "Problem registering platform driver.");
- goto unreg_pci;
- }
-+
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ retval = register_chrdev(XHCI_MTK_TEST_MAJOR, DEVICE_NAME, &xhci_mtk_test_fops);
-+
-+ u3phy_init();
-+ if (u3phy_ops->u2_slew_rate_calibration) {
-+ u3phy_ops->u2_slew_rate_calibration(u3phy);
-+ u3phy_ops->u2_slew_rate_calibration(u3phy_p1);
-+ }
-+ else{
-+ printk(KERN_ERR "WARN: PHY doesn't implement u2 slew rate calibration function\n");
-+ }
-+ u3phy_ops->init(u3phy);
-+ reinitIP();
-+
-+ pPlatformDev = &xhci_platform_dev;
-+ memset(pPlatformDev, 0, sizeof(struct platform_device));
-+ pPlatformDev->name = "xhci-hcd";
-+ pPlatformDev->id = -1;
-+ pPlatformDev->dev.coherent_dma_mask = 0xffffffff;
-+ pPlatformDev->dev.dma_mask = &pPlatformDev->dev.coherent_dma_mask;
-+
-+ retval = platform_device_register(&xhci_platform_dev);
-+ if (retval < 0)
-+ xhci_unregister_plat();
-+#endif
-+
- /*
- * Check the compiler generated sizes of structures that must be laid
- * out in specific ways for hardware access.
-@@ -4786,6 +4980,7 @@ static int __init xhci_hcd_init(void)
- BUILD_BUG_ON(sizeof(struct xhci_intr_reg) != 8*32/8);
- /* xhci_run_regs has eight fields and embeds 128 xhci_intr_regs */
- BUILD_BUG_ON(sizeof(struct xhci_run_regs) != (8+8*128)*32/8);
-+
- return 0;
- unreg_pci:
- xhci_unregister_pci();
---- a/drivers/usb/host/xhci-dbg.c
-+++ b/drivers/usb/host/xhci-dbg.c
-@@ -21,6 +21,9 @@
- */
-
- #include "xhci.h"
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+#include "xhci-mtk.h"
-+#endif
-
- #define XHCI_INIT_VALUE 0x0
-
---- a/drivers/usb/host/xhci.h
-+++ b/drivers/usb/host/xhci.h
-@@ -29,9 +29,24 @@
- #include <linux/usb/hcd.h>
-
- /* Code sharing between pci-quirks and xhci hcd */
--#include "xhci-ext-caps.h"
-+#include "xhci-ext-caps.h"
- #include "pci-quirks.h"
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+#define XHC_IRQ (22 + 8)
-+#define XHC_IO_START 0x1E1C0000
-+#define XHC_IO_LENGTH 0x10000
-+/* mtk scheduler bitmasks */
-+#define BPKTS(p) ((p) & 0x3f)
-+#define BCSCOUNT(p) (((p) & 0x7) << 8)
-+#define BBM(p) ((p) << 11)
-+#define BOFFSET(p) ((p) & 0x3fff)
-+#define BREPEAT(p) (((p) & 0x7fff) << 16)
-+#endif
-+
-+
-+
-+
- /* xHCI PCI Configuration Registers */
- #define XHCI_SBRN_OFFSET (0x60)
-
-@@ -1536,8 +1551,12 @@ struct xhci_hcd {
- /* Compliance Mode Recovery Data */
- struct timer_list comp_mode_recovery_timer;
- u32 port_status_u0;
-+#ifdef CONFIG_USB_MT7621_XHCI_PLATFORM
-+#define COMP_MODE_RCVRY_MSECS 5000
-+#else
- /* Compliance Mode Timer Triggered every 2 seconds */
- #define COMP_MODE_RCVRY_MSECS 2000
-+#endif
- };
-
- /* convert between an HCD pointer and the corresponding EHCI_HCD */
-@@ -1703,7 +1722,7 @@ void xhci_urb_free_priv(struct xhci_hcd
- void xhci_free_command(struct xhci_hcd *xhci,
- struct xhci_command *command);
-
--#ifdef CONFIG_PCI
-+#if defined (CONFIG_PCI) && !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- /* xHCI PCI glue */
- int xhci_register_pci(void);
- void xhci_unregister_pci(void);
---- a/drivers/usb/host/xhci-mem.c
-+++ b/drivers/usb/host/xhci-mem.c
-@@ -65,6 +65,9 @@ static struct xhci_segment *xhci_segment
-
- static void xhci_segment_free(struct xhci_hcd *xhci, struct xhci_segment *seg)
- {
-+ if (!seg)
-+ return;
-+
- if (seg->trbs) {
- dma_pool_free(xhci->segment_pool, seg->trbs, seg->dma);
- seg->trbs = NULL;
-@@ -1446,9 +1449,17 @@ int xhci_endpoint_init(struct xhci_hcd *
- max_burst = (usb_endpoint_maxp(&ep->desc)
- & 0x1800) >> 11;
- }
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ if ((max_packet % 4 == 2) && (max_packet % 16 != 14) && (max_burst == 0) && usb_endpoint_dir_in(&ep->desc))
-+ max_packet += 2;
-+#endif
- break;
- case USB_SPEED_FULL:
- case USB_SPEED_LOW:
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ if ((max_packet % 4 == 2) && (max_packet % 16 != 14) && (max_burst == 0) && usb_endpoint_dir_in(&ep->desc))
-+ max_packet += 2;
-+#endif
- break;
- default:
- BUG();
---- a/drivers/usb/host/xhci-plat.c
-+++ b/drivers/usb/host/xhci-plat.c
-@@ -25,6 +25,13 @@ static void xhci_plat_quirks(struct devi
- * dev struct in order to setup MSI
- */
- xhci->quirks |= XHCI_PLAT;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ /* MTK host controller gives a spurious successful event after a
-+ * short transfer. Ignore it.
-+ */
-+ xhci->quirks |= XHCI_SPURIOUS_SUCCESS;
-+ xhci->quirks |= XHCI_LPM_SUPPORT;
-+#endif
- }
-
- /* called during probe() after chip reset completes */
-@@ -96,20 +103,32 @@ static int xhci_plat_probe(struct platfo
-
- driver = &xhci_plat_xhci_driver;
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ irq = XHC_IRQ;
-+#else
- irq = platform_get_irq(pdev, 0);
-+#endif
-+
- if (irq < 0)
- return -ENODEV;
-
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENODEV;
-+#endif
-
- hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd)
- return -ENOMEM;
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ hcd->rsrc_start = (uint32_t)XHC_IO_START;
-+ hcd->rsrc_len = XHC_IO_LENGTH;
-+#else
- hcd->rsrc_start = res->start;
- hcd->rsrc_len = resource_size(res);
-+#endif
-
- if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
- driver->description)) {
---- a/drivers/usb/host/xhci-ring.c
-+++ b/drivers/usb/host/xhci-ring.c
-@@ -236,7 +236,6 @@ static void inc_enq(struct xhci_hcd *xhc
- */
- if (!chain && !more_trbs_coming)
- break;
--
- /* If we're not dealing with 0.95 hardware or
- * isoc rings on AMD 0.96 host,
- * carry over the chain bit of the previous TRB
-@@ -273,16 +272,20 @@ static void inc_enq(struct xhci_hcd *xhc
- static inline int room_on_ring(struct xhci_hcd *xhci, struct xhci_ring *ring,
- unsigned int num_trbs)
- {
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- int num_trbs_in_deq_seg;
-+#endif
-
- if (ring->num_trbs_free < num_trbs)
- return 0;
-
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (ring->type != TYPE_COMMAND && ring->type != TYPE_EVENT) {
- num_trbs_in_deq_seg = ring->dequeue - ring->deq_seg->trbs;
- if (ring->num_trbs_free < num_trbs + num_trbs_in_deq_seg)
- return 0;
- }
-+#endif
-
- return 1;
- }
-@@ -2910,6 +2913,7 @@ static int prepare_ring(struct xhci_hcd
- next = ring->enqueue;
-
- while (last_trb(xhci, ring, ring->enq_seg, next)) {
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- /* If we're not dealing with 0.95 hardware or isoc rings
- * on AMD 0.96 host, clear the chain bit.
- */
-@@ -2919,7 +2923,9 @@ static int prepare_ring(struct xhci_hcd
- next->link.control &= cpu_to_le32(~TRB_CHAIN);
- else
- next->link.control |= cpu_to_le32(TRB_CHAIN);
--
-+#else
-+ next->link.control &= cpu_to_le32(~TRB_CHAIN);
-+#endif
- wmb();
- next->link.control ^= cpu_to_le32(TRB_CYCLE);
-
-@@ -3049,6 +3055,9 @@ static void giveback_first_trb(struct xh
- start_trb->field[3] |= cpu_to_le32(start_cycle);
- else
- start_trb->field[3] &= cpu_to_le32(~TRB_CYCLE);
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ wmb();
-+#endif
- xhci_ring_ep_doorbell(xhci, slot_id, ep_index, stream_id);
- }
-
-@@ -3108,6 +3117,29 @@ static u32 xhci_td_remainder(unsigned in
- return (remainder >> 10) << 17;
- }
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+static u32 mtk_xhci_td_remainder(unsigned int td_transfer_size, unsigned int td_running_total, unsigned int maxp, unsigned trb_buffer_length)
-+{
-+ u32 max = 31;
-+ int remainder, td_packet_count, packet_transferred;
-+
-+ //0 for the last TRB
-+ //FIXME: need to workaround if there is ZLP in this TD
-+ if (td_running_total + trb_buffer_length == td_transfer_size)
-+ return 0;
-+
-+ //FIXME: need to take care of high-bandwidth (MAX_ESIT)
-+ packet_transferred = (td_running_total /*+ trb_buffer_length*/) / maxp;
-+ td_packet_count = DIV_ROUND_UP(td_transfer_size, maxp);
-+ remainder = td_packet_count - packet_transferred;
-+
-+ if (remainder > max)
-+ return max << 17;
-+ else
-+ return remainder << 17;
-+}
-+#endif
-+
- /*
- * For xHCI 1.0 host controllers, TD size is the number of max packet sized
- * packets remaining in the TD (*not* including this TRB).
-@@ -3245,6 +3277,7 @@ static int queue_bulk_sg_tx(struct xhci_
- }
-
- /* Set the TRB length, TD size, and interrupter fields. */
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- urb->transfer_buffer_length -
-@@ -3254,6 +3287,13 @@ static int queue_bulk_sg_tx(struct xhci_
- trb_buff_len, total_packet_count, urb,
- num_trbs - 1);
- }
-+#else
-+ if (num_trbs > 1)
-+ remainder = mtk_xhci_td_remainder(urb->transfer_buffer_length,
-+ running_total, urb->ep->desc.wMaxPacketSize, trb_buff_len);
-+#endif
-+
-+
- length_field = TRB_LEN(trb_buff_len) |
- remainder |
- TRB_INTR_TARGET(0);
-@@ -3316,6 +3356,9 @@ int xhci_queue_bulk_tx(struct xhci_hcd *
- int running_total, trb_buff_len, ret;
- unsigned int total_packet_count;
- u64 addr;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ int max_packet;
-+#endif
-
- if (urb->num_sgs)
- return queue_bulk_sg_tx(xhci, mem_flags, urb, slot_id, ep_index);
-@@ -3341,6 +3384,25 @@ int xhci_queue_bulk_tx(struct xhci_hcd *
- running_total += TRB_MAX_BUFF_SIZE;
- }
- /* FIXME: this doesn't deal with URB_ZERO_PACKET - need one more */
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ switch(urb->dev->speed){
-+ case USB_SPEED_SUPER:
-+ max_packet = urb->ep->desc.wMaxPacketSize;
-+ break;
-+ case USB_SPEED_HIGH:
-+ case USB_SPEED_FULL:
-+ case USB_SPEED_LOW:
-+ case USB_SPEED_WIRELESS:
-+ case USB_SPEED_UNKNOWN:
-+ default:
-+ max_packet = urb->ep->desc.wMaxPacketSize & 0x7ff;
-+ break;
-+ }
-+ if((urb->transfer_flags & URB_ZERO_PACKET)
-+ && ((urb->transfer_buffer_length % max_packet) == 0)){
-+ num_trbs++;
-+ }
-+#endif
-
- ret = prepare_transfer(xhci, xhci->devs[slot_id],
- ep_index, urb->stream_id,
-@@ -3400,6 +3462,7 @@ int xhci_queue_bulk_tx(struct xhci_hcd *
- field |= TRB_ISP;
-
- /* Set the TRB length, TD size, and interrupter fields. */
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- urb->transfer_buffer_length -
-@@ -3409,6 +3472,10 @@ int xhci_queue_bulk_tx(struct xhci_hcd *
- trb_buff_len, total_packet_count, urb,
- num_trbs - 1);
- }
-+#else
-+ remainder = mtk_xhci_td_remainder(urb->transfer_buffer_length, running_total, max_packet, trb_buff_len);
-+#endif
-+
- length_field = TRB_LEN(trb_buff_len) |
- remainder |
- TRB_INTR_TARGET(0);
-@@ -3498,7 +3565,11 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *
- field |= 0x1;
-
- /* xHCI 1.0 6.4.1.2.1: Transfer Type field */
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ if (1) {
-+#else
- if (xhci->hci_version == 0x100) {
-+#endif
- if (urb->transfer_buffer_length > 0) {
- if (setup->bRequestType & USB_DIR_IN)
- field |= TRB_TX_TYPE(TRB_DATA_IN);
-@@ -3522,7 +3593,12 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *
- field = TRB_TYPE(TRB_DATA);
-
- length_field = TRB_LEN(urb->transfer_buffer_length) |
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- xhci_td_remainder(urb->transfer_buffer_length) |
-+#else
-+ //CC: MTK style, no scatter-gather for control transfer
-+ 0 |
-+#endif
- TRB_INTR_TARGET(0);
- if (urb->transfer_buffer_length > 0) {
- if (setup->bRequestType & USB_DIR_IN)
-@@ -3533,7 +3609,7 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *
- length_field,
- field | ep_ring->cycle_state);
- }
--
-+
- /* Save the DMA address of the last TRB in the TD */
- td->last_trb = ep_ring->enqueue;
-
-@@ -3645,6 +3721,9 @@ static int xhci_queue_isoc_tx(struct xhc
- u64 start_addr, addr;
- int i, j;
- bool more_trbs_coming;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ int max_packet;
-+#endif
-
- ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
-
-@@ -3658,6 +3737,21 @@ static int xhci_queue_isoc_tx(struct xhc
- start_trb = &ep_ring->enqueue->generic;
- start_cycle = ep_ring->cycle_state;
-
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ switch(urb->dev->speed){
-+ case USB_SPEED_SUPER:
-+ max_packet = urb->ep->desc.wMaxPacketSize;
-+ break;
-+ case USB_SPEED_HIGH:
-+ case USB_SPEED_FULL:
-+ case USB_SPEED_LOW:
-+ case USB_SPEED_WIRELESS:
-+ case USB_SPEED_UNKNOWN:
-+ max_packet = urb->ep->desc.wMaxPacketSize & 0x7ff;
-+ break;
-+ }
-+#endif
-+
- urb_priv = urb->hcpriv;
- /* Queue the first TRB, even if it's zero-length */
- for (i = 0; i < num_tds; i++) {
-@@ -3729,9 +3823,13 @@ static int xhci_queue_isoc_tx(struct xhc
- } else {
- td->last_trb = ep_ring->enqueue;
- field |= TRB_IOC;
-+#if defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
-+ if (!(xhci->quirks & XHCI_AVOID_BEI)) {
-+#else
- if (xhci->hci_version == 0x100 &&
- !(xhci->quirks &
- XHCI_AVOID_BEI)) {
-+#endif
- /* Set BEI bit except for the last td */
- if (i < num_tds - 1)
- field |= TRB_BEI;
-@@ -3746,6 +3844,7 @@ static int xhci_queue_isoc_tx(struct xhc
- trb_buff_len = td_remain_len;
-
- /* Set the TRB length, TD size, & interrupter fields. */
-+#if !defined (CONFIG_USB_MT7621_XHCI_PLATFORM)
- if (xhci->hci_version < 0x100) {
- remainder = xhci_td_remainder(
- td_len - running_total);
-@@ -3755,6 +3854,10 @@ static int xhci_queue_isoc_tx(struct xhc
- total_packet_count, urb,
- (trbs_per_td - j - 1));
- }
-+#else
-+ remainder = mtk_xhci_td_remainder(urb->transfer_buffer_length, running_total, max_packet, trb_buff_len);
-+#endif
-+
- length_field = TRB_LEN(trb_buff_len) |
- remainder |
- TRB_INTR_TARGET(0);
projects / openwrt.git / blobdiff