diff options
| -rw-r--r-- | drivers/usb/host/dwc2.c | 24 |
1 files changed, 17 insertions, 7 deletions
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index 702ef63..09f91f1 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -27,8 +27,8 @@ struct dwc2_priv { #ifdef CONFIG_DM_USB - uint8_t aligned_buffer[DWC2_DATA_BUF_SIZE] __aligned(8); - uint8_t status_buffer[DWC2_STATUS_BUF_SIZE] __aligned(8); + uint8_t aligned_buffer[DWC2_DATA_BUF_SIZE] __aligned(ARCH_DMA_MINALIGN); + uint8_t status_buffer[DWC2_STATUS_BUF_SIZE] __aligned(ARCH_DMA_MINALIGN); #else uint8_t *aligned_buffer; uint8_t *status_buffer; @@ -39,9 +39,11 @@ struct dwc2_priv { }; #ifndef CONFIG_DM_USB -/* We need doubleword-aligned buffers for DMA transfers */ -DEFINE_ALIGN_BUFFER(uint8_t, aligned_buffer_addr, DWC2_DATA_BUF_SIZE, 8); -DEFINE_ALIGN_BUFFER(uint8_t, status_buffer_addr, DWC2_STATUS_BUF_SIZE, 8); +/* We need cacheline-aligned buffers for DMA transfers and dcache support */ +DEFINE_ALIGN_BUFFER(uint8_t, aligned_buffer_addr, DWC2_DATA_BUF_SIZE, + ARCH_DMA_MINALIGN); +DEFINE_ALIGN_BUFFER(uint8_t, status_buffer_addr, DWC2_STATUS_BUF_SIZE, + ARCH_DMA_MINALIGN); static struct dwc2_priv local; #endif @@ -821,8 +823,11 @@ int chunk_msg(struct dwc2_priv *priv, struct usb_device *dev, &hc_regs->hctsiz); if (!in) { - memcpy(priv->aligned_buffer, (char *)buffer + done, - len); + memcpy(priv->aligned_buffer, (char *)buffer + done, len); + + flush_dcache_range((unsigned long)priv->aligned_buffer, + (unsigned long)((void *)priv->aligned_buffer + + roundup(len, ARCH_DMA_MINALIGN))); } writel(phys_to_bus((unsigned long)priv->aligned_buffer), @@ -840,6 +845,11 @@ int chunk_msg(struct dwc2_priv *priv, struct usb_device *dev, if (in) { xfer_len -= sub; + + invalidate_dcache_range((unsigned long)priv->aligned_buffer, + (unsigned long)((void *)priv->aligned_buffer + + roundup(xfer_len, ARCH_DMA_MINALIGN))); + memcpy(buffer + done, priv->aligned_buffer, xfer_len); if (sub) stop_transfer = 1; |