dmaengine: shdma: add dmaor_is_32bit flag
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 9412de3..6a21cd8 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -70,12 +70,22 @@
static u16 dmaor_read(struct sh_dmae_device *shdev)
{
- return __raw_readw(shdev->chan_reg + DMAOR / sizeof(u32));
+ u32 __iomem *addr = shdev->chan_reg + DMAOR / sizeof(u32);
+
+ if (shdev->pdata->dmaor_is_32bit)
+ return __raw_readl(addr);
+ else
+ return __raw_readw(addr);
}
static void dmaor_write(struct sh_dmae_device *shdev, u16 data)
{
- __raw_writew(data, shdev->chan_reg + DMAOR / sizeof(u32));
+ u32 __iomem *addr = shdev->chan_reg + DMAOR / sizeof(u32);
+
+ if (shdev->pdata->dmaor_is_32bit)
+ __raw_writel(data, addr);
+ else
+ __raw_writew(data, addr);
}
static void chcr_write(struct sh_dmae_chan *sh_dc, u32 data)
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h
index 96803aa..f25afc6 100644
--- a/include/linux/sh_dma.h
+++ b/include/linux/sh_dma.h
@@ -64,6 +64,8 @@
u16 dmaor_init;
unsigned int chcr_offset;
u32 chcr_ie_bit;
+
+ unsigned int dmaor_is_32bit:1;
};
/* DMA register */