blackfin: bf60x: add dma support

Add dma support for bf60x.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Sonic Zhang <sonic.adi@gmail.com>

2 files changed, 104 insertions, 31 deletions

diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index 21ff1cf9fb..ef1db6e99c 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -8,7 +8,12 @@
 #ifndef _BLACKFIN_DMA_H_
 #define _BLACKFIN_DMA_H_
 
+#include <linux/types.h>
+#ifdef __ADSPBF60x__
+#include <asm/mach-common/bits/dde.h>
+#else
 #include <asm/mach-common/bits/dma.h>
+#endif
 
 struct dmasg_large {
 	void *next_desc_addr;
@@ -30,46 +35,70 @@ struct dmasg {
 } __attribute__((packed));
 
 struct dma_register {
+#ifdef __ADSPBF60x__
+	void *next_desc_ptr;	/* DMA Next Descriptor Pointer register */
+	u32 start_addr;		/* DMA Start address  register */
+	u32 config;		/* DMA Configuration register */
+
+	u32 x_count;		/* DMA x_count register */
+	s32 x_modify;		/* DMA x_modify register */
+	u32 y_count;		/* DMA y_count register */
+	s32 y_modify;		/* DMA y_modify register */
+	u32 __pad0[2];
+
+	void *curr_desc_ptr;	/* DMA Curr Descriptor Pointer register */
+	void *prev_desc_ptr;	/* DMA Prev Descriptor Pointer register */
+	void *curr_addr;	/* DMA Current Address Pointer register */
+	u32 status;		/* DMA irq status register */
+	u32 curr_x_count;	/* DMA Current x-count register */
+	u32 curr_y_count;	/* DMA Current y-count register */
+	u32 __pad1[2];
+
+	u32 bw_limit;		/* DMA Bandwidth Limit Count */
+	u32 curr_bw_limit;	/* DMA curr Bandwidth Limit Count */
+	u32 bw_monitor;		/* DMA Bandwidth Monitor Count */
+	u32 curr_bw_monitor;	/* DMA curr Bandwidth Monitor Count */
+#else
 	void *next_desc_ptr;	/* DMA Next Descriptor Pointer register */
-	unsigned long start_addr;	/* DMA Start address  register */
+	u32 start_addr;		/* DMA Start address  register */
 
-	unsigned short cfg;	/* DMA Configuration register */
-	unsigned short dummy1;	/* DMA Configuration register */
+	u16 config;		/* DMA Configuration register */
+	u16 dummy1;		/* DMA Configuration register */
 
-	unsigned long reserved;
+	u32 reserved;
 
-	unsigned short x_count;	/* DMA x_count register */
-	unsigned short dummy2;
+	u16 x_count;		/* DMA x_count register */
+	u16 dummy2;
 
-	short x_modify;	/* DMA x_modify register */
-	unsigned short dummy3;
+	s16 x_modify;		/* DMA x_modify register */
+	u16 dummy3;
 
-	unsigned short y_count;	/* DMA y_count register */
-	unsigned short dummy4;
+	u16 y_count;		/* DMA y_count register */
+	u16 dummy4;
 
-	short y_modify;	/* DMA y_modify register */
-	unsigned short dummy5;
+	s16 y_modify;		/* DMA y_modify register */
+	u16 dummy5;
 
-	void *curr_desc_ptr;	/* DMA Current Descriptor Pointer
-					   register */
-	unsigned long curr_addr_ptr;	/* DMA Current Address Pointer
-						   register */
-	unsigned short irq_status;	/* DMA irq status register */
-	unsigned short dummy6;
+	void *curr_desc_ptr;	/* DMA Current Descriptor Pointer register */
 
-	unsigned short peripheral_map;	/* DMA peripheral map register */
-	unsigned short dummy7;
+	u32 curr_addr_ptr;	/* DMA Current Address Pointer register */
 
-	unsigned short curr_x_count;	/* DMA Current x-count register */
-	unsigned short dummy8;
+	u16 status;		/* DMA irq status register */
+	u16 dummy6;
 
-	unsigned long reserved2;
+	u16 peripheral_map;	/* DMA peripheral map register */
+	u16 dummy7;
 
-	unsigned short curr_y_count;	/* DMA Current y-count register */
-	unsigned short dummy9;
+	u16 curr_x_count;	/* DMA Current x-count register */
+	u16 dummy8;
 
-	unsigned long reserved3;
+	u32 reserved2;
 
+	u16 curr_y_count;	/* DMA Current y-count register */
+	u16 dummy9;
+
+	u32 reserved3;
+#endif
 };
 
 #endif
diff --git a/arch/blackfin/include/asm/mach-common/bits/dma.h b/arch/blackfin/include/asm/mach-common/bits/dma.h
index 136313e613..ac426addd4 100644
--- a/arch/blackfin/include/asm/mach-common/bits/dma.h
+++ b/arch/blackfin/include/asm/mach-common/bits/dma.h
@@ -9,14 +9,54 @@
 #define DMAEN			0x0001	/* DMA Channel Enable */
 #define WNR			0x0002	/* Channel Direction (W/R*) */
 #define WDSIZE_8		0x0000	/* Transfer Word Size = 8 */
+
+#ifdef CONFIG_BF60x
+
+#define PSIZE_8			0x00000000	/* Transfer Word Size = 16 */
+#define PSIZE_16		0x00000010	/* Transfer Word Size = 16 */
+#define PSIZE_32		0x00000020	/* Transfer Word Size = 32 */
+#define PSIZE_64		0x00000030	/* Transfer Word Size = 32 */
+#define WDSIZE_16		0x00000100	/* Transfer Word Size = 16 */
+#define WDSIZE_32		0x00000200	/* Transfer Word Size = 32 */
+#define WDSIZE_64		0x00000300	/* Transfer Word Size = 32 */
+#define WDSIZE_128		0x00000400	/* Transfer Word Size = 32 */
+#define WDSIZE_256		0x00000500	/* Transfer Word Size = 32 */
+#define DMA2D			0x04000000	/* DMA Mode (2D/1D*) */
+#define RESTART			0x00000004	/* DMA Buffer Clear SYNC */
+#define DI_EN_X			0x00100000	/* Data Int Enable in X count */
+#define DI_EN_Y			0x00200000	/* Data Int Enable in Y count */
+#define DI_EN_P			0x00300000	/* Data Int Enable in Peri */
+#define DI_EN			DI_EN_X		/* Data Int Enable */
+#define NDSIZE_0		0x00000000	/* Next Desc Size = 0 */
+#define NDSIZE_1		0x00010000	/* Next Desc Size = 1 */
+#define NDSIZE_2		0x00020000	/* Next Desc Size = 2 */
+#define NDSIZE_3		0x00030000	/* Next Desc Size = 3 */
+#define NDSIZE_4		0x00040000	/* Next Desc Size = 4 */
+#define NDSIZE_5		0x00050000	/* Next Desc Size = 5 */
+#define NDSIZE_6		0x00060000	/* Next Desc Size = 6 */
+#define NDSIZE			0x00070000	/* Next Desc Size */
+#define NDSIZE_OFFSET		16		/* Next Desc Size Offset */
+#define DMAFLOW_LIST		0x00004000	/* Desc List Mode */
+#define DMAFLOW_ARRAY		0x00005000	/* Desc Array Mode */
+#define DMAFLOW_LIST_DEMAND	0x00006000	/* Desc Demand List Mode */
+#define DMAFLOW_ARRAY_DEMAND	0x00007000	/* Desc Demand Array Mode */
+#define DMA_RUN_DFETCH		0x00000100	/* DMA Channel Run (DFETCH) */
+#define DMA_RUN			0x00000200	/* DMA Channel Run */
+#define DMA_RUN_WAIT_TRIG	0x00000300	/* DMA Channel Run (WAIT TRIG)*/
+#define DMA_RUN_WAIT_ACK	0x00000400	/* DMA Channel Run (WAIT ACK) */
+
+#else
+
 #define WDSIZE_16		0x0004	/* Transfer Word Size = 16 */
 #define WDSIZE_32		0x0008	/* Transfer Word Size = 32 */
+#define PSIZE_16		WDSIZE_16
+#define PSIZE_32		WDSIZE_32
 #define DMA2D			0x0010	/* DMA Mode (2D/1D*) */
 #define RESTART			0x0020	/* DMA Buffer Clear */
 #define DI_SEL			0x0040	/* Data Interrupt Timing Select */
 #define DI_EN			0x0080	/* Data Interrupt Enable */
 #define NDSIZE			0x0F00	/* Next Descriptor bitmask */
-#define NDSIZE_0		0x0000	/* Next Descriptor Size = 0 (Stop/Autobuffer) */
+#define NDSIZE_0		0x0000	/* Next Descriptor Size = 0 */
 #define NDSIZE_1		0x0100	/* Next Descriptor Size = 1 */
 #define NDSIZE_2		0x0200	/* Next Descriptor Size = 2 */
 #define NDSIZE_3		0x0300	/* Next Descriptor Size = 3 */
@@ -26,14 +66,13 @@
 #define NDSIZE_7		0x0700	/* Next Descriptor Size = 7 */
 #define NDSIZE_8		0x0800	/* Next Descriptor Size = 8 */
 #define NDSIZE_9		0x0900	/* Next Descriptor Size = 9 */
-#define FLOW_STOP		0x0000	/* Stop Mode */
-#define FLOW_AUTO		0x1000	/* Autobuffer Mode */
 #define FLOW_ARRAY		0x4000	/* Descriptor Array Mode */
 #define FLOW_SMALL		0x6000	/* Small Model Descriptor List Mode */
 #define FLOW_LARGE		0x7000	/* Large Model Descriptor List Mode */
 
 #define DMAEN_P			0	/* Channel Enable */
 #define WNR_P			1	/* Channel Direction (W/R*) */
+#define WDSIZE_P		2	/* Transfer Word Size */
 #define DMA2D_P			4	/* 2D/1D* Mode */
 #define RESTART_P		5	/* Restart */
 #define DI_SEL_P		6	/* Data Interrupt Select */
@@ -45,14 +84,19 @@
 #define DFETCH			0x0004	/* DMA Descriptor Fetch Indicator */
 #define DMA_RUN			0x0008	/* DMA Channel Running Indicator */
 
+#endif
+#define DMAFLOW			0x7000	/* Flow Control */
+#define FLOW_STOP		0x0000	/* Stop Mode */
+#define FLOW_AUTO		0x1000	/* Autobuffer Mode */
+
 #define DMA_DONE_P		0	/* DMA Done Indicator */
 #define DMA_ERR_P		1	/* DMA Error Indicator */
 #define DFETCH_P		2	/* Descriptor Fetch Indicator */
 #define DMA_RUN_P		3	/* DMA Running Indicator */
 
 /* DMAx_PERIPHERAL_MAP, MDMA_yy_PERIPHERAL_MAP Masks */
-#define CTYPE			0x0040	/* DMA Channel Type Indicator (Memory/Peripheral*) */
-#define CTYPE_P			6	/* DMA Channel Type Indicator BIT POSITION */
+#define CTYPE			0x0040	/* DMA Channel Type (Mem/Peri) */
+#define CTYPE_P			6	/* DMA Channel Type BIT POSITION */
 #define PMAP			0xF000	/* Peripheral Mapped To This Channel */
 
 #endif