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| author | Bin Meng <bmeng.cn@gmail.com> | 2017-09-18 16:40:49 +0300 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2017-10-01 17:32:54 +0300 |
| commit | ab2b727dc03113fe35d6a9c937911055be3d3990 (patch) | |
| tree | 4766f95cb7e57de846c93c5d4466122427d9988e /drivers/usb | |
| parent | fa483b2c750f6ebdb5946f46b217aa3f9a449531 (diff) | |
| download | u-boot-ab2b727dc03113fe35d6a9c937911055be3d3990.tar.xz | |
usb: xhci: Set 'Error Count' to 0 for isoch endpoints
Per xHCI spec, 'Error Count' should be set to 0 for isoch endpoints.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/host/xhci.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index dfb188d5e4..93737b083c 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -511,6 +511,7 @@ static int xhci_set_configuration(struct usb_device *udev) unsigned int mult; unsigned int max_burst; unsigned int avg_trb_len; + unsigned int err_count = 0; out_ctx = virt_dev->out_ctx; in_ctx = virt_dev->in_ctx; @@ -588,9 +589,12 @@ static int xhci_set_configuration(struct usb_device *udev) cpu_to_le32(MAX_PACKET (get_unaligned(&endpt_desc->wMaxPacketSize))); + /* Allow 3 retries for everything but isoc, set CErr = 3 */ + if (!usb_endpoint_xfer_isoc(endpt_desc)) + err_count = 3; ep_ctx[ep_index]->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst) | - ((3 & ERROR_COUNT_MASK) << ERROR_COUNT_SHIFT)); + ERROR_COUNT(err_count)); trb_64 = (uintptr_t) virt_dev->eps[ep_index].ring->enqueue; |