diff options
| author | supriya karanth <supriya.karanth@stericsson.com> | 2011-12-09 16:32:37 +0530 |
|---|---|---|
| committer | Kalle Vahlman <kalle.vahlman@movial.com> | 2012-01-26 14:28:24 +0200 |
| commit | 20b7fe0f932bb6e9a72d846dfd9e24eb823100b6 (patch) | |
| tree | 4cd7eba890abd03b91ef497c13ae82d9e4246358 | |
| parent | ee6b19a5a1b7cc525b748ffae052f25f99f9288b (diff) | |
usb: musb: TXMAXP,TXCSR setting in Host mode
The TXMAXP and TXCSR registers were not set correctly for
the BULK OUT endpoints causing issues in Full speed in
Host mode.
Change-Id: If5f3552235d8909adef4777f08d612df432d8709
| -rw-r--r-- | drivers/usb/musb/musb_host.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index f12b046b0d6..241f6342dc2 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -640,7 +640,17 @@ static bool musb_tx_dma_program(struct dma_controller *dma, mode = 1; csr |= MUSB_TXCSR_DMAMODE | MUSB_TXCSR_DMAENAB; /* autoset shouldn't be set in high bandwidth */ - if (qh->hb_mult == 1) + /* + * Enable Autoset according to table + * below + * bulk_split hb_mult Autoset_Enable + * 0 1 Yes(Normal) + * 0 >1 No(High BW ISO) + * 1 1 Yes(HS bulk) + * 1 >1 Yes(FS bulk) + */ + if (qh->hb_mult == 1 || (qh->hb_mult > 1 && + can_bulk_split(hw_ep->musb, qh->type))) csr |= MUSB_TXCSR_AUTOSET; } else { mode = 0; @@ -787,6 +797,13 @@ static void musb_ep_program(struct musb *musb, u8 epnum, /* protocol/endpoint/interval/NAKlimit */ if (epnum) { musb_writeb(epio, MUSB_TXTYPE, qh->type_reg); + /* + * Set the TXMAXP register correctly for Bulk OUT + * endpoints in host mode + */ + if (can_bulk_split(musb, qh->type)) + qh->hb_mult = hw_ep->max_packet_sz_tx + / packet_sz; if (musb->double_buffer_not_ok) musb_writew(epio, MUSB_TXMAXP, hw_ep->max_packet_sz_tx); |