diff options
author | J. Bruce Fields <bfields@citi.umich.edu> | 2010-03-09 17:22:08 -0500 |
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committer | J. Bruce Fields <bfields@citi.umich.edu> | 2010-03-09 17:22:08 -0500 |
commit | e739cf1da48e841bc5d744a99764c1a668b4bdd2 (patch) | |
tree | 1d39318bbbcdd66ad8cd34823ad9befb7af08b1f /arch/sh/drivers/dma/dma-sh.c | |
parent | e7b184f199fd3c80b618ec8244cbda70857d2779 (diff) | |
parent | 57d54889cd00db2752994b389ba714138652e60c (diff) |
Merge commit 'v2.6.34-rc1' into for-2.6.35-incoming
Diffstat (limited to 'arch/sh/drivers/dma/dma-sh.c')
-rw-r--r-- | arch/sh/drivers/dma/dma-sh.c | 31 |
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 37fb5b8bbc3..827208781ed 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); } |