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Diffstat (limited to 'arch/blackfin/include/asm/dma.h')
-rw-r--r--arch/blackfin/include/asm/dma.h137
1 files changed, 117 insertions, 20 deletions
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index dac0c97..40e9c2b 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -22,12 +22,22 @@
#define DATA_SIZE_8 0
#define DATA_SIZE_16 1
#define DATA_SIZE_32 2
+#ifdef CONFIG_BF60x
+#define DATA_SIZE_64 3
+#endif
#define DMA_FLOW_STOP 0
#define DMA_FLOW_AUTO 1
+#ifdef CONFIG_BF60x
+#define DMA_FLOW_LIST 4
+#define DMA_FLOW_ARRAY 5
+#define DMA_FLOW_LIST_DEMAND 6
+#define DMA_FLOW_ARRAY_DEMAND 7
+#else
#define DMA_FLOW_ARRAY 4
#define DMA_FLOW_SMALL 6
#define DMA_FLOW_LARGE 7
+#endif
#define DIMENSION_LINEAR 0
#define DIMENSION_2D 1
@@ -36,26 +46,80 @@
#define DIR_WRITE 1
#define INTR_DISABLE 0
+#ifdef CONFIG_BF60x
+#define INTR_ON_PERI 1
+#endif
#define INTR_ON_BUF 2
#define INTR_ON_ROW 3
#define DMA_NOSYNC_KEEP_DMA_BUF 0
#define DMA_SYNC_RESTART 1
+#ifdef DMA_MMR_SIZE_32
+#define DMA_MMR_SIZE_TYPE long
+#define DMA_MMR_READ bfin_read32
+#define DMA_MMR_WRITE bfin_write32
+#else
+#define DMA_MMR_SIZE_TYPE short
+#define DMA_MMR_READ bfin_read16
+#define DMA_MMR_WRITE bfin_write16
+#endif
+
+struct dma_desc_array {
+ unsigned long start_addr;
+ unsigned DMA_MMR_SIZE_TYPE cfg;
+ unsigned DMA_MMR_SIZE_TYPE x_count;
+ DMA_MMR_SIZE_TYPE x_modify;
+} __attribute__((packed));
+
struct dmasg {
void *next_desc_addr;
unsigned long start_addr;
- unsigned short cfg;
- unsigned short x_count;
- short x_modify;
- unsigned short y_count;
- short y_modify;
+ unsigned DMA_MMR_SIZE_TYPE cfg;
+ unsigned DMA_MMR_SIZE_TYPE x_count;
+ DMA_MMR_SIZE_TYPE x_modify;
+ unsigned DMA_MMR_SIZE_TYPE y_count;
+ DMA_MMR_SIZE_TYPE y_modify;
} __attribute__((packed));
struct dma_register {
void *next_desc_ptr; /* DMA Next Descriptor Pointer register */
unsigned long start_addr; /* DMA Start address register */
+#ifdef CONFIG_BF60x
+ unsigned long cfg; /* DMA Configuration register */
+ unsigned long x_count; /* DMA x_count register */
+
+ long x_modify; /* DMA x_modify register */
+
+ unsigned long y_count; /* DMA y_count register */
+
+ long y_modify; /* DMA y_modify register */
+
+ unsigned long reserved;
+ unsigned long reserved2;
+
+ void *curr_desc_ptr; /* DMA Current Descriptor Pointer
+ register */
+ void *prev_desc_ptr; /* DMA previous initial Descriptor Pointer
+ register */
+ unsigned long curr_addr_ptr; /* DMA Current Address Pointer
+ register */
+ unsigned long irq_status; /* DMA irq status register */
+
+ unsigned long curr_x_count; /* DMA Current x-count register */
+
+ unsigned long curr_y_count; /* DMA Current y-count register */
+
+ unsigned long reserved3;
+
+ unsigned long bw_limit_count; /* DMA band width limit count register */
+ unsigned long curr_bw_limit_count; /* DMA Current band width limit
+ count register */
+ unsigned long bw_monitor_count; /* DMA band width limit count register */
+ unsigned long curr_bw_monitor_count; /* DMA Current band width limit
+ count register */
+#else
unsigned short cfg; /* DMA Configuration register */
unsigned short dummy1; /* DMA Configuration register */
@@ -92,6 +156,7 @@ struct dma_register {
unsigned short dummy9;
unsigned long reserved3;
+#endif
};
@@ -131,23 +196,23 @@ static inline void set_dma_curr_desc_addr(unsigned int channel, void *addr)
{
dma_ch[channel].regs->curr_desc_ptr = addr;
}
-static inline void set_dma_x_count(unsigned int channel, unsigned short x_count)
+static inline void set_dma_x_count(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE x_count)
{
dma_ch[channel].regs->x_count = x_count;
}
-static inline void set_dma_y_count(unsigned int channel, unsigned short y_count)
+static inline void set_dma_y_count(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE y_count)
{
dma_ch[channel].regs->y_count = y_count;
}
-static inline void set_dma_x_modify(unsigned int channel, short x_modify)
+static inline void set_dma_x_modify(unsigned int channel, DMA_MMR_SIZE_TYPE x_modify)
{
dma_ch[channel].regs->x_modify = x_modify;
}
-static inline void set_dma_y_modify(unsigned int channel, short y_modify)
+static inline void set_dma_y_modify(unsigned int channel, DMA_MMR_SIZE_TYPE y_modify)
{
dma_ch[channel].regs->y_modify = y_modify;
}
-static inline void set_dma_config(unsigned int channel, unsigned short config)
+static inline void set_dma_config(unsigned int channel, unsigned DMA_MMR_SIZE_TYPE config)
{
dma_ch[channel].regs->cfg = config;
}
@@ -156,23 +221,55 @@ static inline void set_dma_curr_addr(unsigned int channel, unsigned long addr)
dma_ch[channel].regs->curr_addr_ptr = addr;
}
-static inline unsigned short
+#ifdef CONFIG_BF60x
+static inline unsigned long
+set_bfin_dma_config2(char direction, char flow_mode, char intr_mode,
+ char dma_mode, char mem_width, char syncmode, char peri_width)
+{
+ unsigned long config = 0;
+
+ switch (intr_mode) {
+ case INTR_ON_BUF:
+ if (dma_mode == DIMENSION_2D)
+ config = DI_EN_Y;
+ else
+ config = DI_EN_X;
+ break;
+ case INTR_ON_ROW:
+ config = DI_EN_X;
+ break;
+ case INTR_ON_PERI:
+ config = DI_EN_P;
+ break;
+ };
+
+ return config | (direction << 1) | (mem_width << 8) | (dma_mode << 26) |
+ (flow_mode << 12) | (syncmode << 2) | (peri_width << 4);
+}
+#endif
+
+static inline unsigned DMA_MMR_SIZE_TYPE
set_bfin_dma_config(char direction, char flow_mode,
- char intr_mode, char dma_mode, char width, char syncmode)
+ char intr_mode, char dma_mode, char mem_width, char syncmode)
{
- return (direction << 1) | (width << 2) | (dma_mode << 4) |
+#ifdef CONFIG_BF60x
+ return set_bfin_dma_config2(direction, flow_mode, intr_mode, dma_mode,
+ mem_width, syncmode, mem_width);
+#else
+ return (direction << 1) | (mem_width << 2) | (dma_mode << 4) |
(intr_mode << 6) | (flow_mode << 12) | (syncmode << 5);
+#endif
}
-static inline unsigned short get_dma_curr_irqstat(unsigned int channel)
+static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_irqstat(unsigned int channel)
{
return dma_ch[channel].regs->irq_status;
}
-static inline unsigned short get_dma_curr_xcount(unsigned int channel)
+static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_xcount(unsigned int channel)
{
return dma_ch[channel].regs->curr_x_count;
}
-static inline unsigned short get_dma_curr_ycount(unsigned int channel)
+static inline unsigned DMA_MMR_SIZE_TYPE get_dma_curr_ycount(unsigned int channel)
{
return dma_ch[channel].regs->curr_y_count;
}
@@ -184,7 +281,7 @@ static inline void *get_dma_curr_desc_ptr(unsigned int channel)
{
return dma_ch[channel].regs->curr_desc_ptr;
}
-static inline unsigned short get_dma_config(unsigned int channel)
+static inline unsigned DMA_MMR_SIZE_TYPE get_dma_config(unsigned int channel)
{
return dma_ch[channel].regs->cfg;
}
@@ -203,8 +300,8 @@ static inline void set_dma_sg(unsigned int channel, struct dmasg *sg, int ndsize
dma_ch[channel].regs->next_desc_ptr = sg;
dma_ch[channel].regs->cfg =
- (dma_ch[channel].regs->cfg & ~(0xf << 8)) |
- ((ndsize & 0xf) << 8);
+ (dma_ch[channel].regs->cfg & ~NDSIZE) |
+ ((ndsize << NDSIZE_OFFSET) & NDSIZE);
}
static inline int dma_channel_active(unsigned int channel)
@@ -239,7 +336,7 @@ static inline void dma_enable_irq(unsigned int channel)
}
static inline void clear_dma_irqstat(unsigned int channel)
{
- dma_ch[channel].regs->irq_status = DMA_DONE | DMA_ERR;
+ dma_ch[channel].regs->irq_status = DMA_DONE | DMA_ERR | DMA_PIRQ;
}
void *dma_memcpy(void *dest, const void *src, size_t count);