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-rw-r--r--drivers/usb/host/ehci-hcd.c20
-rw-r--r--drivers/usb/host/isp1362.h2
-rw-r--r--drivers/usb/host/xhci-pci.c2
-rw-r--r--drivers/usb/host/xhci-ring.c31
-rw-r--r--drivers/usb/host/xhci.c57
-rw-r--r--drivers/usb/host/xhci.h12
6 files changed, 111 insertions, 13 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index ef3e88f0b3c3..a3ef2a9d9dc2 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1135,7 +1135,7 @@ MODULE_LICENSE ("GPL");
#ifdef CONFIG_XPS_USB_HCD_XILINX
#include "ehci-xilinx-of.c"
-#define OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
+#define XILINX_OF_PLATFORM_DRIVER ehci_hcd_xilinx_of_driver
#endif
#ifdef CONFIG_PLAT_ORION
@@ -1159,7 +1159,8 @@ MODULE_LICENSE ("GPL");
#endif
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
- !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
+ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
+ !defined(XILINX_OF_PLATFORM_DRIVER)
#error "missing bus glue for ehci-hcd"
#endif
@@ -1213,10 +1214,20 @@ static int __init ehci_hcd_init(void)
if (retval < 0)
goto clean3;
#endif
+
+#ifdef XILINX_OF_PLATFORM_DRIVER
+ retval = of_register_platform_driver(&XILINX_OF_PLATFORM_DRIVER);
+ if (retval < 0)
+ goto clean4;
+#endif
return retval;
+#ifdef XILINX_OF_PLATFORM_DRIVER
+ /* of_unregister_platform_driver(&XILINX_OF_PLATFORM_DRIVER); */
+clean4:
+#endif
#ifdef OF_PLATFORM_DRIVER
- /* of_unregister_platform_driver(&OF_PLATFORM_DRIVER); */
+ of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
clean3:
#endif
#ifdef PS3_SYSTEM_BUS_DRIVER
@@ -1243,6 +1254,9 @@ module_init(ehci_hcd_init);
static void __exit ehci_hcd_cleanup(void)
{
+#ifdef XILINX_OF_PLATFORM_DRIVER
+ of_unregister_platform_driver(&XILINX_OF_PLATFORM_DRIVER);
+#endif
#ifdef OF_PLATFORM_DRIVER
of_unregister_platform_driver(&OF_PLATFORM_DRIVER);
#endif
diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h
index 5151516ea1de..d995351f9bed 100644
--- a/drivers/usb/host/isp1362.h
+++ b/drivers/usb/host/isp1362.h
@@ -65,7 +65,7 @@ static inline void delayed_insw(unsigned int addr, void *buf, int len)
unsigned short *bp = (unsigned short *)buf;
while (len--) {
DUMMY_DELAY_ACCESS;
- *bp++ = inw((void *)addr);
+ *bp++ = inw(addr);
}
}
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index edffd81fc253..11482b6b9381 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -78,6 +78,8 @@ static int xhci_pci_setup(struct usb_hcd *hcd)
xhci_dbg(xhci, "QUIRK: Fresco Logic xHC needs configure"
" endpoint cmd after reset endpoint\n");
}
+ if (pdev->vendor == PCI_VENDOR_ID_NEC)
+ xhci->quirks |= XHCI_NEC_HOST;
/* Make sure the HC is halted. */
retval = xhci_halt(xhci);
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 36c858e5b529..9012098add6b 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1071,6 +1071,15 @@ bandwidth_change:
xhci_warn(xhci, "Reset device command completion "
"for disabled slot %u\n", slot_id);
break;
+ case TRB_TYPE(TRB_NEC_GET_FW):
+ if (!(xhci->quirks & XHCI_NEC_HOST)) {
+ xhci->error_bitmask |= 1 << 6;
+ break;
+ }
+ xhci_dbg(xhci, "NEC firmware version %2x.%02x\n",
+ NEC_FW_MAJOR(event->status),
+ NEC_FW_MINOR(event->status));
+ break;
default:
/* Skip over unknown commands on the event ring */
xhci->error_bitmask |= 1 << 6;
@@ -1079,6 +1088,17 @@ bandwidth_change:
inc_deq(xhci, xhci->cmd_ring, false);
}
+static void handle_vendor_event(struct xhci_hcd *xhci,
+ union xhci_trb *event)
+{
+ u32 trb_type;
+
+ trb_type = TRB_FIELD_TO_TYPE(event->generic.field[3]);
+ xhci_dbg(xhci, "Vendor specific event TRB type = %u\n", trb_type);
+ if (trb_type == TRB_NEC_CMD_COMP && (xhci->quirks & XHCI_NEC_HOST))
+ handle_cmd_completion(xhci, &event->event_cmd);
+}
+
static void handle_port_status(struct xhci_hcd *xhci,
union xhci_trb *event)
{
@@ -1659,7 +1679,10 @@ void xhci_handle_event(struct xhci_hcd *xhci)
update_ptrs = 0;
break;
default:
- xhci->error_bitmask |= 1 << 3;
+ if ((event->event_cmd.flags & TRB_TYPE_BITMASK) >= TRB_TYPE(48))
+ handle_vendor_event(xhci, event);
+ else
+ xhci->error_bitmask |= 1 << 3;
}
/* Any of the above functions may drop and re-acquire the lock, so check
* to make sure a watchdog timer didn't mark the host as non-responsive.
@@ -2378,6 +2401,12 @@ int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
false);
}
+int xhci_queue_vendor_command(struct xhci_hcd *xhci,
+ u32 field1, u32 field2, u32 field3, u32 field4)
+{
+ return queue_command(xhci, field1, field2, field3, field4, false);
+}
+
/* Queue a reset device command TRB */
int xhci_queue_reset_device(struct xhci_hcd *xhci, u32 slot_id)
{
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 40e0a0c221b8..27345cd04da0 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -106,6 +106,33 @@ int xhci_halt(struct xhci_hcd *xhci)
}
/*
+ * Set the run bit and wait for the host to be running.
+ */
+int xhci_start(struct xhci_hcd *xhci)
+{
+ u32 temp;
+ int ret;
+
+ temp = xhci_readl(xhci, &xhci->op_regs->command);
+ temp |= (CMD_RUN);
+ xhci_dbg(xhci, "// Turn on HC, cmd = 0x%x.\n",
+ temp);
+ xhci_writel(xhci, temp, &xhci->op_regs->command);
+
+ /*
+ * Wait for the HCHalted Status bit to be 0 to indicate the host is
+ * running.
+ */
+ ret = handshake(xhci, &xhci->op_regs->status,
+ STS_HALT, 0, XHCI_MAX_HALT_USEC);
+ if (ret == -ETIMEDOUT)
+ xhci_err(xhci, "Host took too long to start, "
+ "waited %u microseconds.\n",
+ XHCI_MAX_HALT_USEC);
+ return ret;
+}
+
+/*
* Reset a halted HC, and set the internal HC state to HC_STATE_HALT.
*
* This resets pipelines, timers, counters, state machines, etc.
@@ -116,6 +143,7 @@ int xhci_reset(struct xhci_hcd *xhci)
{
u32 command;
u32 state;
+ int ret;
state = xhci_readl(xhci, &xhci->op_regs->status);
if ((state & STS_HALT) == 0) {
@@ -130,7 +158,17 @@ int xhci_reset(struct xhci_hcd *xhci)
/* XXX: Why does EHCI set this here? Shouldn't other code do this? */
xhci_to_hcd(xhci)->state = HC_STATE_HALT;
- return handshake(xhci, &xhci->op_regs->command, CMD_RESET, 0, 250 * 1000);
+ ret = handshake(xhci, &xhci->op_regs->command,
+ CMD_RESET, 0, 250 * 1000);
+ if (ret)
+ return ret;
+
+ xhci_dbg(xhci, "Wait for controller to be ready for doorbell rings\n");
+ /*
+ * xHCI cannot write to any doorbells or operational registers other
+ * than status until the "Controller Not Ready" flag is cleared.
+ */
+ return handshake(xhci, &xhci->op_regs->status, STS_CNR, 0, 250 * 1000);
}
@@ -448,17 +486,20 @@ int xhci_run(struct usb_hcd *hcd)
if (NUM_TEST_NOOPS > 0)
doorbell = xhci_setup_one_noop(xhci);
+ if (xhci->quirks & XHCI_NEC_HOST)
+ xhci_queue_vendor_command(xhci, 0, 0, 0,
+ TRB_TYPE(TRB_NEC_GET_FW));
+
+ if (xhci_start(xhci)) {
+ xhci_halt(xhci);
+ return -ENODEV;
+ }
- temp = xhci_readl(xhci, &xhci->op_regs->command);
- temp |= (CMD_RUN);
- xhci_dbg(xhci, "// Turn on HC, cmd = 0x%x.\n",
- temp);
- xhci_writel(xhci, temp, &xhci->op_regs->command);
- /* Flush PCI posted writes */
- temp = xhci_readl(xhci, &xhci->op_regs->command);
xhci_dbg(xhci, "// @%p = 0x%x\n", &xhci->op_regs->command, temp);
if (doorbell)
(*doorbell)(xhci);
+ if (xhci->quirks & XHCI_NEC_HOST)
+ xhci_ring_cmd_db(xhci);
xhci_dbg(xhci, "Finished xhci_run\n");
return 0;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index dada2fb59261..8b4b7d39f79c 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -925,6 +925,7 @@ union xhci_trb {
/* TRB bit mask */
#define TRB_TYPE_BITMASK (0xfc00)
#define TRB_TYPE(p) ((p) << 10)
+#define TRB_FIELD_TO_TYPE(p) (((p) & TRB_TYPE_BITMASK) >> 10)
/* TRB type IDs */
/* bulk, interrupt, isoc scatter/gather, and control data stage */
#define TRB_NORMAL 1
@@ -992,6 +993,14 @@ union xhci_trb {
#define TRB_MFINDEX_WRAP 39
/* TRB IDs 40-47 reserved, 48-63 is vendor-defined */
+/* Nec vendor-specific command completion event. */
+#define TRB_NEC_CMD_COMP 48
+/* Get NEC firmware revision. */
+#define TRB_NEC_GET_FW 49
+
+#define NEC_FW_MINOR(p) (((p) >> 0) & 0xff)
+#define NEC_FW_MAJOR(p) (((p) >> 8) & 0xff)
+
/*
* TRBS_PER_SEGMENT must be a multiple of 4,
* since the command ring is 64-byte aligned.
@@ -1172,6 +1181,7 @@ struct xhci_hcd {
unsigned int quirks;
#define XHCI_LINK_TRB_QUIRK (1 << 0)
#define XHCI_RESET_EP_QUIRK (1 << 1)
+#define XHCI_NEC_HOST (1 << 2)
};
/* For testing purposes */
@@ -1379,6 +1389,8 @@ void xhci_set_hc_event_deq(struct xhci_hcd *xhci);
int xhci_queue_slot_control(struct xhci_hcd *xhci, u32 trb_type, u32 slot_id);
int xhci_queue_address_device(struct xhci_hcd *xhci, dma_addr_t in_ctx_ptr,
u32 slot_id);
+int xhci_queue_vendor_command(struct xhci_hcd *xhci,
+ u32 field1, u32 field2, u32 field3, u32 field4);
int xhci_queue_stop_endpoint(struct xhci_hcd *xhci, int slot_id,
unsigned int ep_index);
int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags, struct urb *urb,
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-29 07:23:49 +0300