From ee8259623e57acf738aee548a8e9bee0a543f3f0 Mon Sep 17 00:00:00 2001 From: Bob Liu Date: Thu, 16 Aug 2012 11:19:08 +0800 Subject: blackfin: bf60x: add dma support Add dma support for bf60x. Signed-off-by: Bob Liu Signed-off-by: Sonic Zhang Signed-off-by: Sonic Zhang --- arch/blackfin/include/asm/dma.h | 81 ++++++++++++++++-------- arch/blackfin/include/asm/mach-common/bits/dma.h | 54 ++++++++++++++-- 2 files changed, 104 insertions(+), 31 deletions(-) (limited to 'arch/blackfin/include') 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 +#ifdef __ADSPBF60x__ +#include +#else #include +#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 -- cgit v1.2.1