sv_addr_ag.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:4k
- /*!**************************************************************************
- *!
- *! MACROS:
- *! IO_MASK(reg,field)
- *! IO_STATE(reg,field,state)
- *! IO_EXTRACT(reg,field,val)
- *! IO_STATE_VALUE(reg,field,state)
- *! IO_BITNR(reg,field)
- *! IO_WIDTH(reg,field)
- *! IO_FIELD(reg,field,val)
- *! IO_RD(reg)
- *! All moderegister addresses and fields of these.
- *!
- *!**************************************************************************/
- #ifndef __sv_addr_ag_h__
- #define __sv_addr_ag_h__
- #define __test_sv_addr__ 0
- /*------------------------------------------------------------
- !* General macros to manipulate moderegisters.
- !*-----------------------------------------------------------*/
- /* IO_MASK returns a mask for a specified bitfield in a register.
- Note that this macro doesn't work when field width is 32 bits. */
- #define IO_MASK(reg,field)
- ( ( ( 1 << reg##__##field##__WIDTH ) - 1 ) << reg##__##field##__BITNR )
- /* IO_STATE returns a constant corresponding to a one of the symbolic
- states that the bitfield can have. (Shifted to correct position) */
- #define IO_STATE(reg,field,state)
- ( reg##__##field##__##state << reg##__##field##__BITNR )
- /* IO_EXTRACT returns the masked and shifted value corresponding to the
- bitfield can have. */
- #define IO_EXTRACT(reg,field,val) ( (( ( ( 1 << reg##__##field##__WIDTH )
- - 1 ) << reg##__##field##__BITNR ) & (val)) >> reg##__##field##__BITNR )
- /* IO_STATE_VALUE returns a constant corresponding to a one of the symbolic
- states that the bitfield can have. (Not shifted) */
- #define IO_STATE_VALUE(reg,field,state) ( reg##__##field##__##state )
- /* IO_FIELD shifts the val parameter to be aligned with the bitfield
- specified. */
- #define IO_FIELD(reg,field,val) ((val) << reg##__##field##__BITNR)
- /* IO_BITNR returns the starting bitnumber of a bitfield. Bit 0 is
- LSB and the returned bitnumber is LSB of the field. */
- #define IO_BITNR(reg,field) (reg##__##field##__BITNR)
- /* IO_WIDTH returns the width, in bits, of a bitfield. */
- #define IO_WIDTH(reg,field) (reg##__##field##__WIDTH)
- /*--- Obsolete. Kept for backw compatibility. ---*/
- /* Reads (or writes) a byte/uword/udword from the specified mode
- register. */
- #define IO_RD(reg) (*(volatile u32*)(reg))
- #define IO_RD_B(reg) (*(volatile u8*)(reg))
- #define IO_RD_W(reg) (*(volatile u16*)(reg))
- #define IO_RD_D(reg) (*(volatile u32*)(reg))
- /*------------------------------------------------------------
- !* Start addresses of the different memory areas.
- !*-----------------------------------------------------------*/
- #define MEM_CSE0_START (0x00000000)
- #define MEM_CSE1_START (0x04000000)
- #define MEM_CSR0_START (0x08000000)
- #define MEM_CSR1_START (0x0c000000)
- #define MEM_CSP0_START (0x10000000)
- #define MEM_CSP1_START (0x14000000)
- #define MEM_CSP2_START (0x18000000)
- #define MEM_CSP3_START (0x1c000000)
- #define MEM_CSP4_START (0x20000000)
- #define MEM_CSP5_START (0x24000000)
- #define MEM_CSP6_START (0x28000000)
- #define MEM_CSP7_START (0x2c000000)
- #define MEM_DRAM_START (0x40000000)
- #define MEM_NON_CACHEABLE (0x80000000)
- /*------------------------------------------------------------
- !* Type casts used in mode register macros, making pointer
- !* dereferencing possible. Empty in assembler.
- !*-----------------------------------------------------------*/
- #ifndef __ASSEMBLER__
- # define IO_TYPECAST_UDWORD (volatile u32*)
- # define IO_TYPECAST_RO_UDWORD (const volatile u32*)
- # define IO_TYPECAST_UWORD (volatile u16*)
- # define IO_TYPECAST_RO_UWORD (const volatile u16*)
- # define IO_TYPECAST_BYTE (volatile u8*)
- # define IO_TYPECAST_RO_BYTE (const volatile u8*)
- #else
- # define IO_TYPECAST_UDWORD
- # define IO_TYPECAST_RO_UDWORD
- # define IO_TYPECAST_UWORD
- # define IO_TYPECAST_RO_UWORD
- # define IO_TYPECAST_BYTE
- # define IO_TYPECAST_RO_BYTE
- #endif
- /*------------------------------------------------------------*/
- #include "sv_addr.agh"
- #if __test_sv_addr__
- /* IO_MASK( R_BUS_CONFIG , CE ) */
- IO_MASK( R_WAITSTATES , SRAM_WS )
- IO_MASK( R_TEST , W32 )
- IO_STATE( R_BUS_CONFIG, CE, DISABLE )
- IO_STATE( R_BUS_CONFIG, CE, ENABLE )
- IO_STATE( R_DRAM_TIMING, REF, IVAL2 )
- IO_MASK( R_DRAM_TIMING, REF )
- IO_MASK( R_EXT_DMA_0_STAT, TFR_COUNT ) >> IO_BITNR( R_EXT_DMA_0_STAT, TFR_COUNT )
- IO_RD(R_EXT_DMA_0_STAT) & IO_MASK( R_EXT_DMA_0_STAT, S )
- == IO_STATE( R_EXT_DMA_0_STAT, S, STARTED )
- #endif
- #endif /* ifndef __sv_addr_ag_h__ */