summaryrefslogtreecommitdiffstats
path: root/arch/sh/drivers/dma/dma-sh.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sh/drivers/dma/dma-sh.c')
-rw-r--r--arch/sh/drivers/dma/dma-sh.c31
1 files changed, 17 insertions, 14 deletions
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index 37fb5b8bbc3f..827208781ed5 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -52,11 +52,14 @@ static inline unsigned int get_dmte_irq(unsigned int chan)
*
* iterations to complete the transfer.
*/
+static unsigned int ts_shift[] = TS_SHIFT;
static inline unsigned int calc_xmit_shift(struct dma_channel *chan)
{
- u32 chcr = ctrl_inl(dma_base_addr[chan->chan] + CHCR);
+ u32 chcr = __raw_readl(dma_base_addr[chan->chan] + CHCR);
+ int cnt = ((chcr & CHCR_TS_LOW_MASK) >> CHCR_TS_LOW_SHIFT) |
+ ((chcr & CHCR_TS_HIGH_MASK) >> CHCR_TS_HIGH_SHIFT);
- return ts_shift[(chcr & CHCR_TS_MASK)>>CHCR_TS_SHIFT];
+ return ts_shift[cnt];
}
/*
@@ -70,13 +73,13 @@ static irqreturn_t dma_tei(int irq, void *dev_id)
struct dma_channel *chan = dev_id;
u32 chcr;
- chcr = ctrl_inl(dma_base_addr[chan->chan] + CHCR);
+ chcr = __raw_readl(dma_base_addr[chan->chan] + CHCR);
if (!(chcr & CHCR_TE))
return IRQ_NONE;
chcr &= ~(CHCR_IE | CHCR_DE);
- ctrl_outl(chcr, (dma_base_addr[chan->chan] + CHCR));
+ __raw_writel(chcr, (dma_base_addr[chan->chan] + CHCR));
wake_up(&chan->wait_queue);
@@ -115,7 +118,7 @@ sh_dmac_configure_channel(struct dma_channel *chan, unsigned long chcr)
chan->flags &= ~DMA_TEI_CAPABLE;
}
- ctrl_outl(chcr, (dma_base_addr[chan->chan] + CHCR));
+ __raw_writel(chcr, (dma_base_addr[chan->chan] + CHCR));
chan->flags |= DMA_CONFIGURED;
return 0;
@@ -126,13 +129,13 @@ static void sh_dmac_enable_dma(struct dma_channel *chan)
int irq;
u32 chcr;
- chcr = ctrl_inl(dma_base_addr[chan->chan] + CHCR);
+ chcr = __raw_readl(dma_base_addr[chan->chan] + CHCR);
chcr |= CHCR_DE;
if (chan->flags & DMA_TEI_CAPABLE)
chcr |= CHCR_IE;
- ctrl_outl(chcr, (dma_base_addr[chan->chan] + CHCR));
+ __raw_writel(chcr, (dma_base_addr[chan->chan] + CHCR));
if (chan->flags & DMA_TEI_CAPABLE) {
irq = get_dmte_irq(chan->chan);
@@ -150,9 +153,9 @@ static void sh_dmac_disable_dma(struct dma_channel *chan)
disable_irq(irq);
}
- chcr = ctrl_inl(dma_base_addr[chan->chan] + CHCR);
+ chcr = __raw_readl(dma_base_addr[chan->chan] + CHCR);
chcr &= ~(CHCR_DE | CHCR_TE | CHCR_IE);
- ctrl_outl(chcr, (dma_base_addr[chan->chan] + CHCR));
+ __raw_writel(chcr, (dma_base_addr[chan->chan] + CHCR));
}
static int sh_dmac_xfer_dma(struct dma_channel *chan)
@@ -183,12 +186,12 @@ static int sh_dmac_xfer_dma(struct dma_channel *chan)
*/
if (chan->sar || (mach_is_dreamcast() &&
chan->chan == PVR2_CASCADE_CHAN))
- ctrl_outl(chan->sar, (dma_base_addr[chan->chan]+SAR));
+ __raw_writel(chan->sar, (dma_base_addr[chan->chan]+SAR));
if (chan->dar || (mach_is_dreamcast() &&
chan->chan == PVR2_CASCADE_CHAN))
- ctrl_outl(chan->dar, (dma_base_addr[chan->chan] + DAR));
+ __raw_writel(chan->dar, (dma_base_addr[chan->chan] + DAR));
- ctrl_outl(chan->count >> calc_xmit_shift(chan),
+ __raw_writel(chan->count >> calc_xmit_shift(chan),
(dma_base_addr[chan->chan] + TCR));
sh_dmac_enable_dma(chan);
@@ -198,10 +201,10 @@ static int sh_dmac_xfer_dma(struct dma_channel *chan)
static int sh_dmac_get_dma_residue(struct dma_channel *chan)
{
- if (!(ctrl_inl(dma_base_addr[chan->chan] + CHCR) & CHCR_DE))
+ if (!(__raw_readl(dma_base_addr[chan->chan] + CHCR) & CHCR_DE))
return 0;
- return ctrl_inl(dma_base_addr[chan->chan] + TCR)
+ return __raw_readl(dma_base_addr[chan->chan] + TCR)
<< calc_xmit_shift(chan);
}