diff options
Diffstat (limited to 'include/asm-cris/sv_addr_ag.h')
| -rw-r--r-- | include/asm-cris/sv_addr_ag.h | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/include/asm-cris/sv_addr_ag.h b/include/asm-cris/sv_addr_ag.h new file mode 100644 index 000000000..c80826bf9 --- /dev/null +++ b/include/asm-cris/sv_addr_ag.h @@ -0,0 +1,129 @@ +/*!************************************************************************** +*! +*! 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__ */ + |