| /* 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 */ |
