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>
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index 21ff1cf..ef1db6e 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 @@
} __attribute__((packed));
struct dma_register {
+#ifdef __ADSPBF60x__
void *next_desc_ptr; /* DMA Next Descriptor Pointer register */
- unsigned long start_addr; /* DMA Start address register */
+ u32 start_addr; /* DMA Start address register */
+ u32 config; /* DMA Configuration register */
- unsigned short cfg; /* DMA Configuration register */
- unsigned short dummy1; /* 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];
- unsigned long reserved;
+ 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];
- unsigned short x_count; /* DMA x_count register */
- unsigned short dummy2;
+ 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 */
+ u32 start_addr; /* DMA Start address register */
- short x_modify; /* DMA x_modify register */
- unsigned short dummy3;
+ u16 config; /* DMA Configuration register */
+ u16 dummy1; /* DMA Configuration register */
- unsigned short y_count; /* DMA y_count register */
- unsigned short dummy4;
+ u32 reserved;
- short y_modify; /* DMA y_modify register */
- unsigned short dummy5;
+ u16 x_count; /* DMA x_count register */
+ u16 dummy2;
- 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;
+ s16 x_modify; /* DMA x_modify register */
+ u16 dummy3;
- unsigned short peripheral_map; /* DMA peripheral map register */
- unsigned short dummy7;
+ u16 y_count; /* DMA y_count register */
+ u16 dummy4;
- unsigned short curr_x_count; /* DMA Current x-count register */
- unsigned short dummy8;
+ s16 y_modify; /* DMA y_modify register */
+ u16 dummy5;
- unsigned long reserved2;
+ void *curr_desc_ptr; /* DMA Current Descriptor Pointer register */
- unsigned short curr_y_count; /* DMA Current y-count register */
- unsigned short dummy9;
+ u32 curr_addr_ptr; /* DMA Current Address Pointer register */
- unsigned long reserved3;
+ u16 status; /* DMA irq status register */
+ u16 dummy6;
+ u16 peripheral_map; /* DMA peripheral map register */
+ u16 dummy7;
+
+ u16 curr_x_count; /* DMA Current x-count register */
+ u16 dummy8;
+
+ 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 136313e..ac426ad 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