From: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
Masks for HCDMA.CTD and HCDMA.DMAAddr are incorrect. As we always
start from first descriptor, no need to mask the address anyway.
Acked-by: John Youn <johnyoun@xxxxxxxxxxxx>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@xxxxxxxxx>
Signed-off-by: Gregory Herrero <gregory.herrero@xxxxxxxxx>
---
drivers/usb/dwc2/core.c | 10 +++-------
drivers/usb/dwc2/hw.h | 4 ----
2 files changed, 3 insertions(+), 11 deletions(-)
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index 542c9e6..97de855 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -1905,7 +1905,6 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
struct dwc2_host_chan *chan)
{
u32 hcchar;
- u32 hc_dma;
u32 hctsiz = 0;
if (chan->do_ping)
@@ -1937,14 +1936,11 @@ void dwc2_hc_start_transfer_ddma(struct dwc2_hsotg *hsotg,
dma_sync_single_for_device(hsotg->dev, chan->desc_list_addr,
chan->desc_list_sz, DMA_TO_DEVICE);
- hc_dma = (u32)chan->desc_list_addr & HCDMA_DMA_ADDR_MASK;
+ dwc2_writel(chan->desc_list_addr, hsotg->regs + HCDMA(chan->hc_num));
- /* Always start from first descriptor */
- hc_dma &= ~HCDMA_CTD_MASK;
- dwc2_writel(hc_dma, hsotg->regs + HCDMA(chan->hc_num));
if (dbg_hc(chan))
- dev_vdbg(hsotg->dev, "Wrote %08x to HCDMA(%d)\n",
- hc_dma, chan->hc_num);
+ dev_vdbg(hsotg->dev, "Wrote %pad to HCDMA(%d)\n",
+ &chan->desc_list_addr, chan->hc_num);
hcchar = dwc2_readl(hsotg->regs + HCCHAR(chan->hc_num));
hcchar &= ~HCCHAR_MULTICNT_MASK;
diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
index 553f246..281b57b 100644
--- a/drivers/usb/dwc2/hw.h
+++ b/drivers/usb/dwc2/hw.h
@@ -769,10 +769,6 @@
#define TSIZ_XFERSIZE_SHIFT 0
#define HCDMA(_ch) HSOTG_REG(0x0514 + 0x20 * (_ch))
-#define HCDMA_DMA_ADDR_MASK (0x1fffff << 11)
-#define HCDMA_DMA_ADDR_SHIFT 11
-#define HCDMA_CTD_MASK (0xff << 3)
-#define HCDMA_CTD_SHIFT 3
#define HCDMAB(_ch) HSOTG_REG(0x051c + 0x20 * (_ch))
--
2.6.2
--
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