X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=arch%2Fm68k%2Finclude%2Fasm%2Ffsl_i2c.h;fp=arch%2Fm68k%2Finclude%2Fasm%2Ffsl_i2c.h;h=2bc9bf434e1b1065f15e818f8c4a9f5545d837c6;hb=819833af39a91fa1c1e8252862bbda6f5a602f7b;hp=0000000000000000000000000000000000000000;hpb=61f2b38a17f5b21c59f2afe6cf1cbb5f28638cf9;p=u-boot diff --git a/arch/m68k/include/asm/fsl_i2c.h b/arch/m68k/include/asm/fsl_i2c.h new file mode 100644 index 0000000000..2bc9bf434e --- /dev/null +++ b/arch/m68k/include/asm/fsl_i2c.h @@ -0,0 +1,77 @@ +/* + * Freescale I2C Controller + * + * Copyright 2006 Freescale Semiconductor, Inc. + * + * Based on earlier versions by Gleb Natapov , + * Xianghua Xiao , Eran Liberty (liberty@freescale.com), + * and Jeff Brown. + * Some bits are taken from linux driver writen by adrian@humboldt.co.uk. + * + * This software may be used and distributed according to the + * terms of the GNU Public License, Version 2, incorporated + * herein by reference. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * Version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ASM_FSL_I2C_H_ +#define _ASM_FSL_I2C_H_ + +#include + +typedef struct fsl_i2c { + + 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_ */