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authorManuel Lauss <mano@roarinelk.homelinux.net>2007-01-25 15:22:11 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-02-13 10:54:45 +0900
commit9f8a5e3a44d81bbf19fddeb74645dec6b0e23b23 (patch)
tree4dafea7b95e764eb9d01b66eca2800527171a7fa
parent6dcda6f1ecef86209ac161631837bc57172ba049 (diff)
downloadlinux-2.6.34-ux500-9f8a5e3a44d81bbf19fddeb74645dec6b0e23b23.tar.gz
sh: SH-DMAC compile fixes
This patch does the following: - remove the make_ipr_irq stuff from dma-sh.c and replace it with a simple channel<->irq mapping table. - add DMTEx_IRQ constants for sh4 cpus - fix sh7751 DMAE irq number The SH7780 uses the same IRQs for DMA as other SH4 types, so I put the constants on top of the dma.h file. Other CPU types need to #define their own DMTEx_IRQ contants in their appropriate header. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
-rw-r--r--arch/sh/drivers/dma/dma-sh.c45
-rw-r--r--arch/sh/kernel/cpu/sh4/setup-sh7750.c2
-rw-r--r--include/asm-sh/cpu-sh4/dma.h11
3 files changed, 28 insertions, 30 deletions
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index f63721ed86c..06ed0609a95 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -19,34 +19,26 @@
#include <asm/io.h>
#include "dma-sh.h"
-
-
-#ifdef CONFIG_CPU_SH4
-static struct ipr_data dmae_ipr_map[] = {
- { DMAE_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
-};
+static int dmte_irq_map[] = {
+ DMTE0_IRQ,
+ DMTE1_IRQ,
+ DMTE2_IRQ,
+ DMTE3_IRQ,
+#if defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7780)
+ DMTE4_IRQ,
+ DMTE5_IRQ,
+ DMTE6_IRQ,
+ DMTE7_IRQ,
#endif
-static struct ipr_data dmte_ipr_map[] = {
- /*
- * Normally we could just do DMTE0_IRQ + chan outright, though in the
- * case of the 7751R, the DMTE IRQs for channels > 4 start right above
- * the SCIF
- */
- { DMTE0_IRQ + 0, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 1, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 2, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 3, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 0, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 1, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 2, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 3, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
};
static inline unsigned int get_dmte_irq(unsigned int chan)
{
unsigned int irq = 0;
- if (chan < ARRAY_SIZE(dmte_ipr_map))
- irq = dmte_ipr_map[chan].irq;
+ if (chan < ARRAY_SIZE(dmte_irq_map))
+ irq = dmte_irq_map[chan];
return irq;
}
@@ -103,7 +95,7 @@ static void sh_dmac_free_dma(struct dma_channel *chan)
free_irq(get_dmte_irq(chan->chan), chan);
}
-static void
+static int
sh_dmac_configure_channel(struct dma_channel *chan, unsigned long chcr)
{
if (!chcr)
@@ -119,6 +111,7 @@ sh_dmac_configure_channel(struct dma_channel *chan, unsigned long chcr)
ctrl_outl(chcr, CHCR[chan->chan]);
chan->flags |= DMA_CONFIGURED;
+ return 0;
}
static void sh_dmac_enable_dma(struct dma_channel *chan)
@@ -262,17 +255,11 @@ static int __init sh_dmac_init(void)
int i;
#ifdef CONFIG_CPU_SH4
- make_ipr_irq(dmae_ipr_map, ARRAY_SIZE(dmae_ipr_map));
i = request_irq(DMAE_IRQ, dma_err, IRQF_DISABLED, "DMAC Address Error", 0);
if (unlikely(i < 0))
return i;
#endif
- i = info->nr_channels;
- if (i > ARRAY_SIZE(dmte_ipr_map))
- i = ARRAY_SIZE(dmte_ipr_map);
- make_ipr_irq(dmte_ipr_map, i);
-
/*
* Initialize DMAOR, and clean up any error flags that may have
* been set.
diff --git a/arch/sh/kernel/cpu/sh4/setup-sh7750.c b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
index cbac27634c0..aa26245f034 100644
--- a/arch/sh/kernel/cpu/sh4/setup-sh7750.c
+++ b/arch/sh/kernel/cpu/sh4/setup-sh7750.c
@@ -101,7 +101,7 @@ static struct ipr_data sh7750_ipr_map[] = {
{ 35, 2, 8, 7 }, /* DMAC DMTE1 */
{ 36, 2, 8, 7 }, /* DMAC DMTE2 */
{ 37, 2, 8, 7 }, /* DMAC DMTE3 */
- { 28, 2, 8, 7 }, /* DMAC DMAE */
+ { 38, 2, 8, 7 }, /* DMAC DMAE */
};
static struct ipr_data sh7751_ipr_map[] = {
diff --git a/include/asm-sh/cpu-sh4/dma.h b/include/asm-sh/cpu-sh4/dma.h
index 3e4b3e6d80c..c135e9cebd9 100644
--- a/include/asm-sh/cpu-sh4/dma.h
+++ b/include/asm-sh/cpu-sh4/dma.h
@@ -3,6 +3,17 @@
#define DMAOR_INIT ( 0x8000 | DMAOR_DME )
+/* SH7751/7760/7780 DMA IRQ sources */
+#define DMTE0_IRQ 34
+#define DMTE1_IRQ 35
+#define DMTE2_IRQ 36
+#define DMTE3_IRQ 37
+#define DMTE4_IRQ 44
+#define DMTE5_IRQ 45
+#define DMTE6_IRQ 46
+#define DMTE7_IRQ 47
+#define DMAE_IRQ 38
+
#ifdef CONFIG_CPU_SH4A
#define SH_DMAC_BASE 0xfc808020