diff options
Diffstat (limited to 'include/asm-arm/arch-pxa/pxa-regs.h')
| -rw-r--r-- | include/asm-arm/arch-pxa/pxa-regs.h | 36 |
1 files changed, 35 insertions, 1 deletions
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h index 2975fa3..dda2465 100644 --- a/include/asm-arm/arch-pxa/pxa-regs.h +++ b/include/asm-arm/arch-pxa/pxa-regs.h @@ -10,6 +10,8 @@ * published by the Free Software Foundation. */ +#ifndef PXA_REGS_H +#define PXA_REGS_H 1 /* FIXME hack so that SA-1111.h will work [cb] */ @@ -425,6 +427,38 @@ typedef void (*ExcpHndlr) (void) ; #define ISR __REG(0x40301698) /* I2C Status Register - ISR */ #define ISAR __REG(0x403016A0) /* I2C Slave Address Register - ISAR */ +/* ----- Control register bits ---------------------------------------- */ + +#define ICR_START 0x1 /* start bit */ +#define ICR_STOP 0x2 /* stop bit */ +#define ICR_ACKNAK 0x4 /* send ACK(0) or NAK(1) */ +#define ICR_TB 0x8 /* transfer byte bit */ +#define ICR_MA 0x10 /* master abort */ +#define ICR_SCLE 0x20 /* master clock enable */ +#define ICR_IUE 0x40 /* unit enable */ +#define ICR_GCD 0x80 /* general call disable */ +#define ICR_ITEIE 0x100 /* enable tx interrupts */ +#define ICR_IRFIE 0x200 /* enable rx interrupts */ +#define ICR_BEIE 0x400 /* enable bus error ints */ +#define ICR_SSDIE 0x800 /* slave STOP detected int enable */ +#define ICR_ALDIE 0x1000 /* enable arbitration interrupt */ +#define ICR_SADIE 0x2000 /* slave address detected int enable */ +#define ICR_UR 0x4000 /* unit reset */ + +/* ----- Status register bits ----------------------------------------- */ + +#define ISR_RWM 0x1 /* read/write mode */ +#define ISR_ACKNAK 0x2 /* ack/nak status */ +#define ISR_UB 0x4 /* unit busy */ +#define ISR_IBB 0x8 /* bus busy */ +#define ISR_SSD 0x10 /* slave stop detected */ +#define ISR_ALD 0x20 /* arbitration loss detected */ +#define ISR_ITE 0x40 /* tx buffer empty */ +#define ISR_IRF 0x80 /* rx buffer full */ +#define ISR_GCAD 0x100 /* general call address detected */ +#define ISR_SAD 0x200 /* slave address detected */ +#define ISR_BED 0x400 /* bus error no ACK/NAK */ + /* * Serial Audio Controller @@ -1128,6 +1162,6 @@ typedef void (*ExcpHndlr) (void) ; #define MCIO1_OFFSET 0x3C #define MDMRS_OFFSET 0x40 - +#endif /* PXA_REGS_H */ |