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Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r--arch/arm/plat-omap/dma.c80
1 files changed, 38 insertions, 42 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 7fe626761e5..b4dcd92a584 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -36,10 +36,8 @@
#include <linux/slab.h>
#include <linux/delay.h>
-#include <mach/hardware.h>
-#include <plat/dma.h>
-
-#include <plat/tc.h>
+#include <plat/cpu.h>
+#include <plat-omap/dma-omap.h>
/*
* MAX_LOGICAL_DMA_CH_COUNT: the maximum number of logical DMA
@@ -176,6 +174,7 @@ static inline void set_gdma_dev(int req, int dev)
#define omap_writel(val, reg) do {} while (0)
#endif
+#ifdef CONFIG_ARCH_OMAP1
void omap_set_dma_priority(int lch, int dst_port, int priority)
{
unsigned long reg;
@@ -204,18 +203,22 @@ void omap_set_dma_priority(int lch, int dst_port, int priority)
l |= (priority & 0xf) << 8;
omap_writel(l, reg);
}
+}
+#endif
- if (cpu_class_is_omap2()) {
- u32 ccr;
+#ifdef CONFIG_ARCH_OMAP2PLUS
+void omap_set_dma_priority(int lch, int dst_port, int priority)
+{
+ u32 ccr;
- ccr = p->dma_read(CCR, lch);
- if (priority)
- ccr |= (1 << 6);
- else
- ccr &= ~(1 << 6);
- p->dma_write(ccr, CCR, lch);
- }
+ ccr = p->dma_read(CCR, lch);
+ if (priority)
+ ccr |= (1 << 6);
+ else
+ ccr &= ~(1 << 6);
+ p->dma_write(ccr, CCR, lch);
}
+#endif
EXPORT_SYMBOL(omap_set_dma_priority);
void omap_set_dma_transfer_params(int lch, int data_type, int elem_count,
@@ -969,8 +972,7 @@ void omap_stop_dma(int lch)
l = p->dma_read(CCR, lch);
}
if (i >= 100)
- printk(KERN_ERR "DMA drain did not complete on "
- "lch %d\n", lch);
+ pr_err("DMA drain did not complete on lch %d\n", lch);
/* Restore OCP_SYSCONFIG */
p->dma_write(sys_cf, OCP_SYSCONFIG, lch);
} else {
@@ -1154,8 +1156,7 @@ void omap_dma_link_lch(int lch_head, int lch_queue)
if ((dma_chan[lch_head].dev_id == -1) ||
(dma_chan[lch_queue].dev_id == -1)) {
- printk(KERN_ERR "omap_dma: trying to link "
- "non requested channels\n");
+ pr_err("omap_dma: trying to link non requested channels\n");
dump_stack();
}
@@ -1181,15 +1182,13 @@ void omap_dma_unlink_lch(int lch_head, int lch_queue)
if (dma_chan[lch_head].next_lch != lch_queue ||
dma_chan[lch_head].next_lch == -1) {
- printk(KERN_ERR "omap_dma: trying to unlink "
- "non linked channels\n");
+ pr_err("omap_dma: trying to unlink non linked channels\n");
dump_stack();
}
if ((dma_chan[lch_head].flags & OMAP_DMA_ACTIVE) ||
(dma_chan[lch_queue].flags & OMAP_DMA_ACTIVE)) {
- printk(KERN_ERR "omap_dma: You need to stop the DMA channels "
- "before unlinking\n");
+ pr_err("omap_dma: You need to stop the DMA channels before unlinking\n");
dump_stack();
}
@@ -1831,16 +1830,15 @@ static int omap1_dma_handle_ch(int ch)
if ((csr & 0x3f) == 0)
return 0;
if (unlikely(dma_chan[ch].dev_id == -1)) {
- printk(KERN_WARNING "Spurious interrupt from DMA channel "
- "%d (CSR %04x)\n", ch, csr);
+ pr_warn("Spurious interrupt from DMA channel %d (CSR %04x)\n",
+ ch, csr);
return 0;
}
if (unlikely(csr & OMAP1_DMA_TOUT_IRQ))
- printk(KERN_WARNING "DMA timeout with device %d\n",
- dma_chan[ch].dev_id);
+ pr_warn("DMA timeout with device %d\n", dma_chan[ch].dev_id);
if (unlikely(csr & OMAP_DMA_DROP_IRQ))
- printk(KERN_WARNING "DMA synchronization event drop occurred "
- "with device %d\n", dma_chan[ch].dev_id);
+ pr_warn("DMA synchronization event drop occurred with device %d\n",
+ dma_chan[ch].dev_id);
if (likely(csr & OMAP_DMA_BLOCK_IRQ))
dma_chan[ch].flags &= ~OMAP_DMA_ACTIVE;
if (likely(dma_chan[ch].callback != NULL))
@@ -1880,21 +1878,19 @@ static int omap2_dma_handle_ch(int ch)
if (!status) {
if (printk_ratelimit())
- printk(KERN_WARNING "Spurious DMA IRQ for lch %d\n",
- ch);
+ pr_warn("Spurious DMA IRQ for lch %d\n", ch);
p->dma_write(1 << ch, IRQSTATUS_L0, ch);
return 0;
}
if (unlikely(dma_chan[ch].dev_id == -1)) {
if (printk_ratelimit())
- printk(KERN_WARNING "IRQ %04x for non-allocated DMA"
- "channel %d\n", status, ch);
+ pr_warn("IRQ %04x for non-allocated DMA channel %d\n",
+ status, ch);
return 0;
}
if (unlikely(status & OMAP_DMA_DROP_IRQ))
- printk(KERN_INFO
- "DMA synchronization event drop occurred with device "
- "%d\n", dma_chan[ch].dev_id);
+ pr_info("DMA synchronization event drop occurred with device %d\n",
+ dma_chan[ch].dev_id);
if (unlikely(status & OMAP2_DMA_TRANS_ERR_IRQ)) {
printk(KERN_INFO "DMA transaction error with device %d\n",
dma_chan[ch].dev_id);
@@ -2014,8 +2010,9 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
p = pdev->dev.platform_data;
if (!p) {
- dev_err(&pdev->dev, "%s: System DMA initialized without"
- "platform data\n", __func__);
+ dev_err(&pdev->dev,
+ "%s: System DMA initialized without platform data\n",
+ __func__);
return -EINVAL;
}
@@ -2090,8 +2087,8 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
}
ret = setup_irq(dma_irq, &omap24xx_dma_irq);
if (ret) {
- dev_err(&pdev->dev, "set_up failed for IRQ %d"
- "for DMA (error %d)\n", dma_irq, ret);
+ dev_err(&pdev->dev, "set_up failed for IRQ %d for DMA (error %d)\n",
+ dma_irq, ret);
goto exit_dma_lch_fail;
}
}
@@ -2099,8 +2096,7 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
/* reserve dma channels 0 and 1 in high security devices */
if (cpu_is_omap34xx() &&
(omap_type() != OMAP2_DEVICE_TYPE_GP)) {
- printk(KERN_INFO "Reserving DMA channels 0 and 1 for "
- "HS ROM code\n");
+ pr_info("Reserving DMA channels 0 and 1 for HS ROM code\n");
dma_chan[0].dev_id = 0;
dma_chan[1].dev_id = 1;
}
@@ -2108,8 +2104,8 @@ static int __devinit omap_system_dma_probe(struct platform_device *pdev)
return 0;
exit_dma_irq_fail:
- dev_err(&pdev->dev, "unable to request IRQ %d"
- "for DMA (error %d)\n", dma_irq, ret);
+ dev_err(&pdev->dev, "unable to request IRQ %d for DMA (error %d)\n",
+ dma_irq, ret);
for (irq_rel = 0; irq_rel < ch; irq_rel++) {
dma_irq = platform_get_irq(pdev, irq_rel);
free_irq(dma_irq, (void *)(irq_rel + 1));
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 14:30:58 +0000