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Diffstat (limited to 'arch/powerpc/cpu/mpc8220/i2cCore.h')
| -rw-r--r-- | arch/powerpc/cpu/mpc8220/i2cCore.h | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc8220/i2cCore.h b/arch/powerpc/cpu/mpc8220/i2cCore.h new file mode 100644 index 0000000000..72783fd48b --- /dev/null +++ b/arch/powerpc/cpu/mpc8220/i2cCore.h @@ -0,0 +1,103 @@ +/* + * i2cCore.h + * + * Prototypes, etc. for the Motorola MPC8220 + * embedded cpu chips + * + * 2004 (c) Freescale, Inc. + * Author: TsiChung Liew <Tsi-Chung.Liew@freescale.com> + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * 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 __INCi2ccoreh +#define __INCi2ccoreh +#ifndef __ASSEMBLY__ +/* device types */ +#define I2C_DEVICE_TYPE_EEPROM 0 +#define I2C_EEPROM_ADRS 0xa0 +#define I2C_CTRL_ADRS I2C_EEPROM_ADRS +#define EEPROM_ADDR0 0xA2 /* on Dimm SPD eeprom */ +#define EEPROM_ADDR1 0xA4 /* on Board SPD eeprom */ +#define EEPROM_ADDR2 0xD2 /* non-standard eeprom - clock generator */ +/* Control Register */ +#define I2C_CTL_EN 0x80 /* I2C Enable */ +#define I2C_CTL_IEN 0x40 /* I2C Interrupt Enable */ +#define I2C_CTL_STA 0x20 /* Master/Slave Mode select */ +#define I2C_CTL_TX 0x10 /* Transmit/Receive Mode Select */ +#define I2C_CTL_TXAK 0x08 /* Transmit Acknowledge Enable */ +#define I2C_CTL_RSTA 0x04 /* Repeat Start */ +/* Status Register */ +#define I2C_STA_CF 0x80 /* Data Transfer */ +#define I2C_STA_AAS 0x40 /* Adressed As Slave */ +#define I2C_STA_BB 0x20 /* Bus Busy */ +#define I2C_STA_AL 0x10 /* Arbitration Lost */ +#define I2C_STA_SRW 0x04 /* Slave Read/Write */ +#define I2C_STA_IF 0x02 /* I2C Interrupt */ +#define I2C_STA_RXAK 0x01 /* Receive Acknowledge */ +/* Interrupt Contol Register */ +#define I2C_INT_BNBE2 0x80 /* Bus Not Busy Enable 2 */ +#define I2C_INT_TE2 0x40 /* Transmit Enable 2 */ +#define I2C_INT_RE2 0x20 /* Receive Enable 2 */ +#define I2C_INT_IE2 0x10 /* Interrupt Enable 2 */ +#define I2C_INT_BNBE1 0x08 /* Bus Not Busy Enable 1 */ +#define I2C_INT_TE1 0x04 /* Transmit Enable 1 */ +#define I2C_INT_RE1 0x02 /* Receive Enable 1 */ +#define I2C_INT_IE1 0x01 /* Interrupt Enable 1 */ +#define I2C_POLL_COUNT 0x100000 +#define I2C_ENABLE 0x00000001 +#define I2C_DISABLE 0x00000002 +#define I2C_START 0x00000004 +#define I2C_REPSTART 0x00000008 +#define I2C_STOP 0x00000010 +#define I2C_BITRATE 0x00000020 +#define I2C_SLAVEADR 0x00000040 +#define I2C_STARTADR 0x00000080 +#undef TWOBYTES +typedef struct i2c_settings { + /* Device settings */ + int bit_rate; /* Device bit rate */ + u8 i2c_adr; /* I2C address */ + u8 slv_adr; /* Slave address */ +#ifdef TWOBYTES + u16 str_adr; /* Start address */ +#else + u8 str_adr; /* Start address */ +#endif + int xfer_size; /* Transfer Size */ + + int bI2c_en; /* Enable or Disable */ + int cmdFlag; /* I2c Command Flags */ +} i2cset_t; + +/* +int check_status(PSI2C pi2c, u8 sta_bit, u8 truefalse); +int i2c_enable(PSI2C pi2c, PI2CSET pi2cSet); +int i2c_disable(PSI2C pi2c); +int i2c_start(PSI2C pi2c, PI2CSET pi2cSet); +int i2c_stop(PSI2C pi2c); +int i2c_clear(PSI2C pi2c); +int i2c_readblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); +int i2c_writeblock (PSI2C pi2c, PI2CSET pi2cSet, u8 *Data); +int i2c_readbyte(PSI2C pi2c, u8 *readb, int *index); +int i2c_writebyte(PSI2C pi2c, u8 *writeb); +int SetI2cFDR( PSI2C pi2cRegs, int bitrate ); +*/ +#endif /* __ASSEMBLY__ */ + +#endif /* __INCi2ccoreh */ |