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/* linux/include/asm-arm/arch-s3c2410/regs-iic.h * * Copyright (c) 2004 Simtec Electronics <linux@simtec.co.uk> * http://www.simtec.co.uk/products/SWLINUX/ * * 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. * * S3C2410 I2C Controller * * Changelog: * 03-Oct-2004 BJD Initial include for Linux * 08-Nov-2004 BJD Added S3C2440 filter register */ #ifndef __ASM_ARCH_REGS_IIC_H #define __ASM_ARCH_REGS_IIC_H __FILE__ /* see s3c2410x user guide, v1.1, section 9 (p447) for more info */ #define S3C2410_IICREG(x) (x) #define S3C2410_IICCON S3C2410_IICREG(0x00) #define S3C2410_IICSTAT S3C2410_IICREG(0x04) #define S3C2410_IICADD S3C2410_IICREG(0x08) #define S3C2410_IICDS S3C2410_IICREG(0x0C) #define S3C2440_IICLC S3C2410_IICREG(0x10) #define S3C2410_IICCON_ACKEN (1<<7) #define S3C2410_IICCON_TXDIV_16 (0<<6) #define S3C2410_IICCON_TXDIV_512 (1<<6) #define S3C2410_IICCON_IRQEN (1<<5) #define S3C2410_IICCON_IRQPEND (1<<4) #define S3C2410_IICCON_SCALE(x) ((x)&15) #define S3C2410_IICCON_SCALEMASK (0xf) #define S3C2410_IICSTAT_MASTER_RX (2<<6) #define S3C2410_IICSTAT_MASTER_TX (3<<6) #define S3C2410_IICSTAT_SLAVE_RX (0<<6) #define S3C2410_IICSTAT_SLAVE_TX (1<<6) #define S3C2410_IICSTAT_MODEMASK (3<<6) #define S3C2410_IICSTAT_START (1<<5) #define S3C2410_IICSTAT_BUSBUSY (1<<5) #define S3C2410_IICSTAT_TXRXEN (1<<4) #define S3C2410_IICSTAT_ARBITR (1<<3) #define S3C2410_IICSTAT_ASSLAVE (1<<2) #define S3C2410_IICSTAT_ADDR0 (1<<1) #define S3C2410_IICSTAT_LASTBIT (1<<0) #define S3C2410_IICLC_SDA_DELAY0 (0 << 0) #define S3C2410_IICLC_SDA_DELAY5 (1 << 0) #define S3C2410_IICLC_SDA_DELAY10 (2 << 0) #define S3C2410_IICLC_SDA_DELAY15 (3 << 0) #define S3C2410_IICLC_SDA_DELAY_MASK (3 << 0) #define S3C2410_IICLC_FILTER_ON (1<<2) #endif /* __ASM_ARCH_REGS_IIC_H */ |