153 lines
4.7 KiB
C
153 lines
4.7 KiB
C
|
#ifndef _OMAP_I2C_REGISTERS_H
|
||
|
|
#define _OMAP_I2C_REGISTERS_H
|
||
|
|
|
||
|
|
/* I2C Addresses for am335x (BeagleBone White / BeagleBone Black) */
|
||
|
|
|
||
|
|
/* IRQ Numbers */
|
||
|
|
#define AM335X_I2C0_IRQ 70
|
||
|
|
#define AM335X_I2C1_IRQ 71
|
||
|
|
#define AM335X_I2C2_IRQ 30
|
||
|
|
|
||
|
|
/* Base Addresses */
|
||
|
|
#define AM335X_I2C0_BASE 0x44e0b000
|
||
|
|
#define AM335X_I2C1_BASE 0x4802a000
|
||
|
|
#define AM335X_I2C2_BASE 0x4819c000
|
||
|
|
|
||
|
|
/* Size of I2C Register Address Range */
|
||
|
|
#define AM335X_I2C0_SIZE 0x1000
|
||
|
|
#define AM335X_I2C1_SIZE 0x1000
|
||
|
|
#define AM335X_I2C2_SIZE 0x1000
|
||
|
|
|
||
|
|
/* Register Offsets */
|
||
|
|
#define AM335X_I2C_REVNB_LO 0x00
|
||
|
|
#define AM335X_I2C_REVNB_HI 0x04
|
||
|
|
#define AM335X_I2C_SYSC 0x10
|
||
|
|
#define AM335X_I2C_IRQSTATUS_RAW 0x24
|
||
|
|
#define AM335X_I2C_IRQSTATUS 0x28
|
||
|
|
#define AM335X_I2C_IRQENABLE_SET 0x2c
|
||
|
|
#define AM335X_I2C_IRQENABLE_CLR 0x30
|
||
|
|
#define AM335X_I2C_WE 0x34
|
||
|
|
#define AM335X_I2C_DMARXENABLE_SET 0x38
|
||
|
|
#define AM335X_I2C_DMATXENABLE_SET 0x3c
|
||
|
|
#define AM335X_I2C_DMARXENABLE_CLR 0x40
|
||
|
|
#define AM335X_I2C_DMATXENABLE_CLR 0x44
|
||
|
|
#define AM335X_I2C_DMARXWAKE_EN 0x48
|
||
|
|
#define AM335X_I2C_DMATXWAKE_EN 0x4c
|
||
|
|
#define AM335X_I2C_SYSS 0x90
|
||
|
|
#define AM335X_I2C_BUF 0x94
|
||
|
|
#define AM335X_I2C_CNT 0x98
|
||
|
|
#define AM335X_I2C_DATA 0x9c
|
||
|
|
#define AM335X_I2C_CON 0xa4
|
||
|
|
#define AM335X_I2C_OA 0xa8
|
||
|
|
#define AM335X_I2C_SA 0xac
|
||
|
|
#define AM335X_I2C_PSC 0xb0
|
||
|
|
#define AM335X_I2C_SCLL 0xb4
|
||
|
|
#define AM335X_I2C_SCLH 0xb8
|
||
|
|
#define AM335X_I2C_SYSTEST 0xbc
|
||
|
|
#define AM335X_I2C_BUFSTAT 0xc0
|
||
|
|
#define AM335X_I2C_OA1 0xc4
|
||
|
|
#define AM335X_I2C_OA2 0xc8
|
||
|
|
#define AM335X_I2C_OA3 0xcc
|
||
|
|
#define AM335X_I2C_ACTOA 0xd0
|
||
|
|
#define AM335X_I2C_SBLOCK 0xd4
|
||
|
|
|
||
|
|
/* Constants */
|
||
|
|
#define AM335X_FUNCTIONAL_CLOCK 96000000 /* 96 MHz */
|
||
|
|
#define AM335X_MODULE_CLOCK 12000000 /* 12 MHz */
|
||
|
|
|
||
|
|
/* I2C_REV value found on the BeagleBone / BeagleBone Black */
|
||
|
|
#define AM335X_REV_MAJOR 0x00
|
||
|
|
#define AM335X_REV_MINOR 0x0b
|
||
|
|
|
||
|
|
/* I2C Addresses for dm37xx (BeagleBoard-xM) */
|
||
|
|
|
||
|
|
/* IRQ Numbers */
|
||
|
|
#define DM37XX_I2C0_IRQ 56
|
||
|
|
#define DM37XX_I2C1_IRQ 57
|
||
|
|
#define DM37XX_I2C2_IRQ 61
|
||
|
|
|
||
|
|
/* Base Addresses */
|
||
|
|
#define DM37XX_I2C0_BASE 0x48070000
|
||
|
|
#define DM37XX_I2C1_BASE 0x48072000
|
||
|
|
#define DM37XX_I2C2_BASE 0x48060000
|
||
|
|
|
||
|
|
/* Size of I2C Register Address Range */
|
||
|
|
#define DM37XX_I2C0_SIZE 0x1000
|
||
|
|
#define DM37XX_I2C1_SIZE 0x1000
|
||
|
|
#define DM37XX_I2C2_SIZE 0x1000
|
||
|
|
|
||
|
|
/* Register Offsets */
|
||
|
|
#define DM37XX_I2C_REV 0x00
|
||
|
|
#define DM37XX_I2C_IE 0x04
|
||
|
|
#define DM37XX_I2C_STAT 0x08
|
||
|
|
#define DM37XX_I2C_WE 0x0C
|
||
|
|
#define DM37XX_I2C_SYSS 0x10
|
||
|
|
#define DM37XX_I2C_BUF 0x14
|
||
|
|
#define DM37XX_I2C_CNT 0x18
|
||
|
|
#define DM37XX_I2C_DATA 0x1c
|
||
|
|
#define DM37XX_I2C_SYSC 0x20
|
||
|
|
#define DM37XX_I2C_CON 0x24
|
||
|
|
#define DM37XX_I2C_OA0 0x28
|
||
|
|
#define DM37XX_I2C_SA 0x2c
|
||
|
|
#define DM37XX_I2C_PSC 0x30
|
||
|
|
#define DM37XX_I2C_SCLL 0x34
|
||
|
|
#define DM37XX_I2C_SCLH 0x38
|
||
|
|
#define DM37XX_I2C_SYSTEST 0x3c
|
||
|
|
#define DM37XX_I2C_BUFSTAT 0x40
|
||
|
|
#define DM37XX_I2C_OA1 0x44
|
||
|
|
#define DM37XX_I2C_OA2 0x48
|
||
|
|
#define DM37XX_I2C_OA3 0x4c
|
||
|
|
#define DM37XX_I2C_ACTOA 0x50
|
||
|
|
#define DM37XX_I2C_SBLOCK 0x54
|
||
|
|
|
||
|
|
/* Constants */
|
||
|
|
#define DM37XX_FUNCTIONAL_CLOCK 96000000 /* 96 MHz */
|
||
|
|
#define DM37XX_MODULE_CLOCK 19200000 /* 19.2 MHz */
|
||
|
|
|
||
|
|
#define DM37XX_REV_MAJOR 0x04
|
||
|
|
#define DM37XX_REV_MINOR 0x00
|
||
|
|
|
||
|
|
/* Shared Values */
|
||
|
|
|
||
|
|
#define BUS_SPEED_100KHz 100000 /* 100 KHz */
|
||
|
|
#define BUS_SPEED_400KHz 400000 /* 400 KHz */
|
||
|
|
#define I2C_OWN_ADDRESS 0x01
|
||
|
|
|
||
|
|
/* Masks */
|
||
|
|
|
||
|
|
#define MAX_I2C_SA_MASK (0x3ff) /* Highest 10 bit address -- 9..0 */
|
||
|
|
|
||
|
|
/* Bit Offsets within Registers (only those used are listed) */
|
||
|
|
|
||
|
|
/* Same offsets for both dm37xx and am335x */
|
||
|
|
|
||
|
|
#define I2C_EN 15 /* I2C_CON */
|
||
|
|
#define MST 10 /* I2C_CON */
|
||
|
|
#define TRX 9 /* I2C_CON */
|
||
|
|
#define XSA 8 /* I2C_CON */
|
||
|
|
#define STP 1 /* I2C_CON */
|
||
|
|
#define STT 0 /* I2C_CON */
|
||
|
|
|
||
|
|
#define CLKACTIVITY_S 9 /* I2C_SYSC */
|
||
|
|
#define CLKACTIVITY_I 8 /* I2C_SYSC */
|
||
|
|
#define SMART_WAKE_UP 4 /* I2C_SYSC */
|
||
|
|
#define NO_IDLE_MODE 3 /* I2C_SYSC */
|
||
|
|
#define SRST 1 /* I2C_SYSC */
|
||
|
|
#define AUTOIDLE 0 /* I2C_SYSC */
|
||
|
|
|
||
|
|
#define RDONE 0 /* I2C_SYSS */
|
||
|
|
|
||
|
|
#define RXFIFO_CLR 14 /* I2C_BUF */
|
||
|
|
#define TXFIFO_CLR 6 /* I2C_BUF */
|
||
|
|
|
||
|
|
#define BB 12 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define ROVR 11 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define AERR 7 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define XRDY 4 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define RRDY 3 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define ARDY 2 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define NACK 1 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
#define AL 0 /* I2C_IRQSTATUS / I2C_STAT / I2C_IRQENABLE_SET / I2C_IE */
|
||
|
|
|
||
|
|
#endif /* _OMAP_I2C_REGISTERS_H */
|