#include <asm/system.h>
#include <mach/hardware.h>
-#include <mach/dma.h>
+#include <plat/dma.h>
-#include <mach/tc.h>
+#include <plat/tc.h>
#undef DEBUG
{
u32 l;
+ /* Disable all interrupts on the channel */
+ if (cpu_class_is_omap1())
+ dma_write(0, CICR(lch));
+
+ l = dma_read(CCR(lch));
+ l &= ~OMAP_DMA_CCR_EN;
+ dma_write(l, CCR(lch));
+
if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
int next_lch, cur_lch = lch;
char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT];
next_lch = dma_chan[cur_lch].next_lch;
cur_lch = next_lch;
} while (next_lch != -1);
-
- return;
}
- /* Disable all interrupts on the channel */
- if (cpu_class_is_omap1())
- dma_write(0, CICR(lch));
-
- l = dma_read(CCR(lch));
- l &= ~OMAP_DMA_CCR_EN;
- dma_write(l, CCR(lch));
-
dma_chan[lch].flags &= ~OMAP_DMA_ACTIVE;
}
EXPORT_SYMBOL(omap_stop_dma);
static int __init omap_init_dma(void)
{
+ unsigned long base;
int ch, r;
if (cpu_class_is_omap1()) {
- omap_dma_base = OMAP1_IO_ADDRESS(OMAP1_DMA_BASE);
+ base = OMAP1_DMA_BASE;
dma_lch_count = OMAP1_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap24xx()) {
- omap_dma_base = OMAP2_IO_ADDRESS(OMAP24XX_DMA4_BASE);
+ base = OMAP24XX_DMA4_BASE;
dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap34xx()) {
- omap_dma_base = OMAP2_IO_ADDRESS(OMAP34XX_DMA4_BASE);
+ base = OMAP34XX_DMA4_BASE;
dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else if (cpu_is_omap44xx()) {
- omap_dma_base = OMAP2_IO_ADDRESS(OMAP44XX_DMA4_BASE);
+ base = OMAP44XX_DMA4_BASE;
dma_lch_count = OMAP_DMA4_LOGICAL_DMA_CH_COUNT;
} else {
pr_err("DMA init failed for unsupported omap\n");
return -ENODEV;
}
+ omap_dma_base = ioremap(base, SZ_4K);
+ BUG_ON(!omap_dma_base);
+
if (cpu_class_is_omap2() && omap_dma_reserve_channels
&& (omap_dma_reserve_channels <= dma_lch_count))
dma_lch_count = omap_dma_reserve_channels;
dma_chan = kzalloc(sizeof(struct omap_dma_lch) * dma_lch_count,
GFP_KERNEL);
- if (!dma_chan)
- return -ENOMEM;
+ if (!dma_chan) {
+ r = -ENOMEM;
+ goto out_unmap;
+ }
if (cpu_class_is_omap2()) {
dma_linked_lch = kzalloc(sizeof(struct dma_link_info) *
dma_lch_count, GFP_KERNEL);
if (!dma_linked_lch) {
- kfree(dma_chan);
- return -ENOMEM;
+ r = -ENOMEM;
+ goto out_free;
}
}
for (i = 0; i < ch; i++)
free_irq(omap1_dma_irq[i],
(void *) (i + 1));
- return r;
+ goto out_free;
}
}
}
"(error %d)\n", r);
for (i = 0; i < dma_chan_count; i++)
free_irq(omap1_dma_irq[i], (void *) (i + 1));
- return r;
+ goto out_free;
}
}
return 0;
+
+out_free:
+ kfree(dma_chan);
+
+out_unmap:
+ iounmap(omap_dma_base);
+
+ return r;
}
arch_initcall(omap_init_dma);