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| author | Stephen Warren <swarren@nvidia.com> | 2014-04-24 17:52:36 -0600 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2014-04-30 10:30:57 +0200 |
| commit | f5c03006dd1794362a2be7136fed9e664bc1775b (patch) | |
| tree | f214d46fdf485d4f82b7fd1719ee5bb7f8cd000b | |
| parent | 672ad18c276e6c37e2e140294ec35ee96ae47d38 (diff) | |
| download | u-boot-imx-f5c03006dd1794362a2be7136fed9e664bc1775b.zip u-boot-imx-f5c03006dd1794362a2be7136fed9e664bc1775b.tar.gz u-boot-imx-f5c03006dd1794362a2be7136fed9e664bc1775b.tar.bz2 | |
usb: ci_udc: Support larger packets
ci_ep_queue() currently only fills in the page0/page1 fields in the
queue item. If the buffer is larger than 4KiB (unaligned) or 8KiB
(page-aligned), then this prevents the HW from knowing where to write
the balance of the data.
Fix this by initializing all 5 pageN pointers, which allows up to
16KiB (potentially non-page-aligned) buffers.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
| -rw-r--r-- | drivers/usb/gadget/ci_udc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c index 14b1e9b..815ce7b 100644 --- a/drivers/usb/gadget/ci_udc.c +++ b/drivers/usb/gadget/ci_udc.c @@ -350,6 +350,9 @@ static int ci_ep_queue(struct usb_ep *ep, item->info = INFO_BYTES(len) | INFO_IOC | INFO_ACTIVE; item->page0 = (uint32_t)ci_ep->b_buf; item->page1 = ((uint32_t)ci_ep->b_buf & 0xfffff000) + 0x1000; + item->page2 = ((uint32_t)ci_ep->b_buf & 0xfffff000) + 0x2000; + item->page3 = ((uint32_t)ci_ep->b_buf & 0xfffff000) + 0x3000; + item->page4 = ((uint32_t)ci_ep->b_buf & 0xfffff000) + 0x4000; ci_flush_qtd(num); head->next = (unsigned) item; |