1 /* 2 * High-Speed Bus Matrix configuration registers 3 * 4 * Copyright (C) 2008 Atmel Corporation 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10 #ifndef __HMATRIX_H 11 #define __HMATRIX_H 12 13 extern struct clk at32_hmatrix_clk; 14 15 void hmatrix_write_reg(unsigned long offset, u32 value); 16 u32 hmatrix_read_reg(unsigned long offset); 17 18 void hmatrix_sfr_set_bits(unsigned int slave_id, u32 mask); 19 void hmatrix_sfr_clear_bits(unsigned int slave_id, u32 mask); 20 21 /* Master Configuration register */ 22 #define HMATRIX_MCFG(m) (0x0000 + 4 * (m)) 23 /* Undefined length burst limit */ 24 # define HMATRIX_MCFG_ULBT_INFINITE 0 /* Infinite length */ 25 # define HMATRIX_MCFG_ULBT_SINGLE 1 /* Single Access */ 26 # define HMATRIX_MCFG_ULBT_FOUR_BEAT 2 /* Four beat */ 27 # define HMATRIX_MCFG_ULBT_EIGHT_BEAT 3 /* Eight beat */ 28 # define HMATRIX_MCFG_ULBT_SIXTEEN_BEAT 4 /* Sixteen beat */ 29 30 /* Slave Configuration register */ 31 #define HMATRIX_SCFG(s) (0x0040 + 4 * (s)) 32 # define HMATRIX_SCFG_SLOT_CYCLE(x) ((x) << 0) /* Max burst cycles */ 33 # define HMATRIX_SCFG_DEFMSTR_NONE ( 0 << 16) /* No default master */ 34 # define HMATRIX_SCFG_DEFMSTR_LAST ( 1 << 16) /* Last def master */ 35 # define HMATRIX_SCFG_DEFMSTR_FIXED ( 2 << 16) /* Fixed def master */ 36 # define HMATRIX_SCFG_FIXED_DEFMSTR(m) ((m) << 18) /* Fixed master ID */ 37 # define HMATRIX_SCFG_ARBT_ROUND_ROBIN ( 0 << 24) /* RR arbitration */ 38 # define HMATRIX_SCFG_ARBT_FIXED_PRIO ( 1 << 24) /* Fixed priority */ 39 40 /* Slave Priority register A (master 0..7) */ 41 #define HMATRIX_PRAS(s) (0x0080 + 8 * (s)) 42 # define HMATRIX_PRAS_PRIO(m, p) ((p) << ((m) * 4)) 43 44 /* Slave Priority register A (master 8..15) */ 45 #define HMATRIX_PRBS(s) (0x0084 + 8 * (s)) 46 # define HMATRIX_PRBS_PRIO(m, p) ((p) << (((m) - 8) * 4)) 47 48 /* Master Remap Control Register */ 49 #define HMATRIX_MRCR 0x0100 50 # define HMATRIX_MRCR_REMAP(m) ( 1 << (m)) /* Remap master m */ 51 52 /* Special Function Register. Bit definitions are chip-specific */ 53 #define HMATRIX_SFR(s) (0x0110 + 4 * (s)) 54 55 #endif /* __HMATRIX_H */ 56