mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-15 13:22:55 +00:00
41561f28e7
New I2C bus driver for Philips ARM boards (Philips IP3204 I2C IP block). This I2C controller can be found on (at least) PNX010x, PNX52xx and PNX4008 Philips boards. Signed-off-by: Vitaly Wool <vitalywool@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/*
|
|
* PNX4008-specific tweaks for I2C IP3204 block
|
|
*
|
|
* Author: Vitaly Wool <vwool@ru.mvista.com>
|
|
*
|
|
* 2005 (c) MontaVista Software, Inc. This file is licensed under
|
|
* the terms of the GNU General Public License version 2. This program
|
|
* is licensed "as is" without any warranty of any kind, whether express
|
|
* or implied.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_I2C_H__
|
|
#define __ASM_ARCH_I2C_H__
|
|
|
|
#include <linux/pm.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
enum {
|
|
mstatus_tdi = 0x00000001,
|
|
mstatus_afi = 0x00000002,
|
|
mstatus_nai = 0x00000004,
|
|
mstatus_drmi = 0x00000008,
|
|
mstatus_active = 0x00000020,
|
|
mstatus_scl = 0x00000040,
|
|
mstatus_sda = 0x00000080,
|
|
mstatus_rff = 0x00000100,
|
|
mstatus_rfe = 0x00000200,
|
|
mstatus_tff = 0x00000400,
|
|
mstatus_tfe = 0x00000800,
|
|
};
|
|
|
|
enum {
|
|
mcntrl_tdie = 0x00000001,
|
|
mcntrl_afie = 0x00000002,
|
|
mcntrl_naie = 0x00000004,
|
|
mcntrl_drmie = 0x00000008,
|
|
mcntrl_daie = 0x00000020,
|
|
mcntrl_rffie = 0x00000040,
|
|
mcntrl_tffie = 0x00000080,
|
|
mcntrl_reset = 0x00000100,
|
|
mcntrl_cdbmode = 0x00000400,
|
|
};
|
|
|
|
enum {
|
|
rw_bit = 1 << 0,
|
|
start_bit = 1 << 8,
|
|
stop_bit = 1 << 9,
|
|
};
|
|
|
|
#define I2C_REG_RX(a) ((a)->ioaddr) /* Rx FIFO reg (RO) */
|
|
#define I2C_REG_TX(a) ((a)->ioaddr) /* Tx FIFO reg (WO) */
|
|
#define I2C_REG_STS(a) ((a)->ioaddr + 0x04) /* Status reg (RO) */
|
|
#define I2C_REG_CTL(a) ((a)->ioaddr + 0x08) /* Ctl reg */
|
|
#define I2C_REG_CKL(a) ((a)->ioaddr + 0x0c) /* Clock divider low */
|
|
#define I2C_REG_CKH(a) ((a)->ioaddr + 0x10) /* Clock divider high */
|
|
#define I2C_REG_ADR(a) ((a)->ioaddr + 0x14) /* I2C address */
|
|
#define I2C_REG_RFL(a) ((a)->ioaddr + 0x18) /* Rx FIFO level (RO) */
|
|
#define I2C_REG_TFL(a) ((a)->ioaddr + 0x1c) /* Tx FIFO level (RO) */
|
|
#define I2C_REG_RXB(a) ((a)->ioaddr + 0x20) /* Num of bytes Rx-ed (RO) */
|
|
#define I2C_REG_TXB(a) ((a)->ioaddr + 0x24) /* Num of bytes Tx-ed (RO) */
|
|
#define I2C_REG_TXS(a) ((a)->ioaddr + 0x28) /* Tx slave FIFO (RO) */
|
|
#define I2C_REG_STFL(a) ((a)->ioaddr + 0x2c) /* Tx slave FIFO level (RO) */
|
|
|
|
#define HCLK_MHZ 13
|
|
#define I2C_CHIP_NAME "PNX4008-I2C"
|
|
|
|
#endif /* __ASM_ARCH_I2C_H___ */
|