| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Freescale I2C Controller |
| * |
| * Copyright 2006 Freescale Semiconductor, Inc. |
| * |
| * Based on earlier versions by Gleb Natapov <gnatapov@mrv.com>, |
| * Xianghua Xiao <x.xiao@motorola.com>, Eran Liberty (liberty@freescale.com), |
| * and Jeff Brown. |
| * Some bits are taken from linux driver writen by adrian@humboldt.co.uk. |
| */ |
| |
| #ifndef _ASM_FSL_I2C_H_ |
| #define _ASM_FSL_I2C_H_ |
| |
| #include <asm/types.h> |
| |
| typedef struct fsl_i2c_base { |
| |
| u8 adr; /* I2C slave address */ |
| u8 res0[3]; |
| #define I2C_ADR 0xFE |
| #define I2C_ADR_SHIFT 1 |
| #define I2C_ADR_RES ~(I2C_ADR) |
| |
| u8 fdr; /* I2C frequency divider register */ |
| u8 res1[3]; |
| #define IC2_FDR 0x3F |
| #define IC2_FDR_SHIFT 0 |
| #define IC2_FDR_RES ~(IC2_FDR) |
| |
| u8 cr; /* I2C control redister */ |
| u8 res2[3]; |
| #define I2C_CR_MEN 0x80 |
| #define I2C_CR_MIEN 0x40 |
| #define I2C_CR_MSTA 0x20 |
| #define I2C_CR_MTX 0x10 |
| #define I2C_CR_TXAK 0x08 |
| #define I2C_CR_RSTA 0x04 |
| #define I2C_CR_BCST 0x01 |
| |
| u8 sr; /* I2C status register */ |
| u8 res3[3]; |
| #define I2C_SR_MCF 0x80 |
| #define I2C_SR_MAAS 0x40 |
| #define I2C_SR_MBB 0x20 |
| #define I2C_SR_MAL 0x10 |
| #define I2C_SR_BCSTM 0x08 |
| #define I2C_SR_SRW 0x04 |
| #define I2C_SR_MIF 0x02 |
| #define I2C_SR_RXAK 0x01 |
| |
| u8 dr; /* I2C data register */ |
| u8 res4[3]; |
| #define I2C_DR 0xFF |
| #define I2C_DR_SHIFT 0 |
| #define I2C_DR_RES ~(I2C_DR) |
| } fsl_i2c_t; |
| |
| #endif /* _ASM_I2C_H_ */ |
