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path: root/drivers/usb/musb/blackfin.c
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Diffstat (limited to 'drivers/usb/musb/blackfin.c')
-rw-r--r--drivers/usb/musb/blackfin.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index ad26e6569665..bcee1339d4fd 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -30,7 +30,6 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
void __iomem *fifo = hw_ep->fifo;
void __iomem *epio = hw_ep->regs;
u8 epnum = hw_ep->epnum;
- u16 dma_reg = 0;
prefetch((u8 *)src);
@@ -42,15 +41,17 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
dump_fifo_data(src, len);
if (!ANOMALY_05000380 && epnum != 0) {
- flush_dcache_range((unsigned int)src,
- (unsigned int)(src + len));
+ u16 dma_reg;
+
+ flush_dcache_range((unsigned long)src,
+ (unsigned long)(src + len));
/* Setup DMA address register */
- dma_reg = (u16) ((u32) src & 0xFFFF);
+ dma_reg = (u32)src;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_LOW), dma_reg);
SSYNC();
- dma_reg = (u16) (((u32) src >> 16) & 0xFFFF);
+ dma_reg = (u32)src >> 16;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_HIGH), dma_reg);
SSYNC();
@@ -79,12 +80,9 @@ void musb_write_fifo(struct musb_hw_ep *hw_ep, u16 len, const u8 *src)
SSYNC();
if (unlikely((unsigned long)src & 0x01))
- outsw_8((unsigned long)fifo, src,
- len & 0x01 ? (len >> 1) + 1 : len >> 1);
+ outsw_8((unsigned long)fifo, src, (len + 1) >> 1);
else
- outsw((unsigned long)fifo, src,
- len & 0x01 ? (len >> 1) + 1 : len >> 1);
-
+ outsw((unsigned long)fifo, src, (len + 1) >> 1);
}
}
/*
@@ -94,19 +92,19 @@ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *dst)
{
void __iomem *fifo = hw_ep->fifo;
u8 epnum = hw_ep->epnum;
- u16 dma_reg = 0;
if (ANOMALY_05000467 && epnum != 0) {
+ u16 dma_reg;
- invalidate_dcache_range((unsigned int)dst,
- (unsigned int)(dst + len));
+ invalidate_dcache_range((unsigned long)dst,
+ (unsigned long)(dst + len));
/* Setup DMA address register */
- dma_reg = (u16) ((u32) dst & 0xFFFF);
+ dma_reg = (u32)dst;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_LOW), dma_reg);
SSYNC();
- dma_reg = (u16) (((u32) dst >> 16) & 0xFFFF);
+ dma_reg = (u32)dst >> 16;
bfin_write16(USB_DMA_REG(epnum, USB_DMAx_ADDR_HIGH), dma_reg);
SSYNC();