diff options
Diffstat (limited to 'drivers/usb/gadget/dwc2_udc_otg.c')
| -rw-r--r-- | drivers/usb/gadget/dwc2_udc_otg.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c index a23278d..029927f 100644 --- a/drivers/usb/gadget/dwc2_udc_otg.c +++ b/drivers/usb/gadget/dwc2_udc_otg.c @@ -403,6 +403,7 @@ static void reconfig_usbd(struct dwc2_udc *dev) int i; unsigned int uTemp = writel(CORE_SOFT_RESET, ®->grstctl); uint32_t dflt_gusbcfg; + uint32_t rx_fifo_sz, tx_fifo_sz, np_tx_fifo_sz; debug("Reseting OTG controller\n"); @@ -467,18 +468,27 @@ static void reconfig_usbd(struct dwc2_udc *dev) /* 10. Unmask device IN EP common interrupts*/ writel(DIEPMSK_INIT, ®->diepmsk); + rx_fifo_sz = RX_FIFO_SIZE; + np_tx_fifo_sz = NPTX_FIFO_SIZE; + tx_fifo_sz = PTX_FIFO_SIZE; + + if (dev->pdata->rx_fifo_sz) + rx_fifo_sz = dev->pdata->rx_fifo_sz; + if (dev->pdata->np_tx_fifo_sz) + np_tx_fifo_sz = dev->pdata->np_tx_fifo_sz; + if (dev->pdata->tx_fifo_sz) + tx_fifo_sz = dev->pdata->tx_fifo_sz; + /* 11. Set Rx FIFO Size (in 32-bit words) */ - writel(RX_FIFO_SIZE >> 2, ®->grxfsiz); + writel(rx_fifo_sz, ®->grxfsiz); /* 12. Set Non Periodic Tx FIFO Size */ - writel((NPTX_FIFO_SIZE >> 2) << 16 | ((RX_FIFO_SIZE >> 2)) << 0, + writel((np_tx_fifo_sz << 16) | rx_fifo_sz, ®->gnptxfsiz); for (i = 1; i < DWC2_MAX_HW_ENDPOINTS; i++) - writel((PTX_FIFO_SIZE >> 2) << 16 | - ((RX_FIFO_SIZE + NPTX_FIFO_SIZE + - PTX_FIFO_SIZE*(i-1)) >> 2) << 0, - ®->dieptxf[i-1]); + writel((rx_fifo_sz + np_tx_fifo_sz + tx_fifo_sz*(i-1)) | + tx_fifo_sz << 16, ®->dieptxf[i-1]); /* Flush the RX FIFO */ writel(RX_FIFO_FLUSH, ®->grstctl); |