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| author | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-02-26 21:21:18 +0800 |
|---|---|---|
| committer | GuanXuetao <gxt@mprc.pku.edu.cn> | 2011-03-17 09:19:19 +0800 |
| commit | e5abf78b57199a417eb01ff922a5ea6ff9e10b61 (patch) | |
| tree | 6f72a13d44c0dc8c4d575d84885f5694c16ed1da /arch/unicore32/kernel/dma.c | |
| parent | 4517366d870b89d6fb8c0c90deb6c73d975908af (diff) | |
| download | linux-e5abf78b57199a417eb01ff922a5ea6ff9e10b61.tar.bz2 | |
unicore32 io: redefine __REG(x) and re-use readl/writel funcs
-- by advice of Arnd Bergmann
Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/unicore32/kernel/dma.c')
| -rw-r--r-- | arch/unicore32/kernel/dma.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/arch/unicore32/kernel/dma.c b/arch/unicore32/kernel/dma.c index b8dcc2514e9a..ae441bc3122c 100644 --- a/arch/unicore32/kernel/dma.c +++ b/arch/unicore32/kernel/dma.c @@ -16,6 +16,7 @@ #include <linux/kernel.h> #include <linux/interrupt.h> #include <linux/errno.h> +#include <linux/io.h> #include <asm/system.h> #include <asm/irq.h> @@ -94,15 +95,16 @@ EXPORT_SYMBOL(puv3_free_dma); static irqreturn_t dma_irq_handler(int irq, void *dev_id) { - int i, dint = DMAC_ITCSR; + int i, dint; + dint = readl(DMAC_ITCSR); for (i = 0; i < MAX_DMA_CHANNELS; i++) { if (dint & DMAC_CHANNEL(i)) { struct dma_channel *channel = &dma_channels[i]; /* Clear TC interrupt of channel i */ - DMAC_ITCCR = DMAC_CHANNEL(i); - DMAC_ITCCR = 0; + writel(DMAC_CHANNEL(i), DMAC_ITCCR); + writel(0, DMAC_ITCCR); if (channel->name && channel->irq_handler) { channel->irq_handler(i, channel->data); @@ -121,15 +123,16 @@ static irqreturn_t dma_irq_handler(int irq, void *dev_id) static irqreturn_t dma_err_handler(int irq, void *dev_id) { - int i, dint = DMAC_IESR; + int i, dint; + dint = readl(DMAC_IESR); for (i = 0; i < MAX_DMA_CHANNELS; i++) { if (dint & DMAC_CHANNEL(i)) { struct dma_channel *channel = &dma_channels[i]; /* Clear Err interrupt of channel i */ - DMAC_IECR = DMAC_CHANNEL(i); - DMAC_IECR = 0; + writel(DMAC_CHANNEL(i), DMAC_IECR); + writel(0, DMAC_IECR); if (channel->name && channel->err_handler) { channel->err_handler(i, channel->data); |