diff options
Diffstat (limited to 'board/sandburst/common/ppc440gx_i2c.h')
| -rw-r--r-- | board/sandburst/common/ppc440gx_i2c.h | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/board/sandburst/common/ppc440gx_i2c.h b/board/sandburst/common/ppc440gx_i2c.h new file mode 100644 index 0000000..cd4fc86 --- /dev/null +++ b/board/sandburst/common/ppc440gx_i2c.h @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2005 Sandburst Corporation + * + * 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 + */ + +/* + * Ported from i2c driver for ppc4xx by AS HARNOIS by + * Travis B. Sawyer + * Sandburst Corporation + */ +#include <common.h> +#include <ppc4xx.h> +#if defined(CONFIG_440) +# include <440_i2c.h> +#else +# include <405gp_i2c.h> +#endif +#include <i2c.h> + +#ifdef CONFIG_HARD_I2C + +#define I2C_BUS1_BASE_ADDR (CFG_PERIPHERAL_BASE + 0x00000500) +#define I2C_REGISTERS_BUS1_BASE_ADDRESS I2C_BUS1_BASE_ADDR +#define IIC_MDBUF1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICMDBUF) +#define IIC_SDBUF1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICSDBUF) +#define IIC_LMADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICLMADR) +#define IIC_HMADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICHMADR) +#define IIC_CNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICCNTL) +#define IIC_MDCNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICMDCNTL) +#define IIC_STS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICSTS) +#define IIC_EXTSTS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICEXTSTS) +#define IIC_LSADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICLSADR) +#define IIC_HSADR1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICHSADR) +#define IIC_CLKDIV1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICCLKDIV) +#define IIC_INTRMSK1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICINTRMSK) +#define IIC_XFRCNT1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICXFRCNT) +#define IIC_XTCNTLSS1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICXTCNTLSS) +#define IIC_DIRECTCNTL1 (I2C_REGISTERS_BUS1_BASE_ADDRESS+IICDIRECTCNTL) + +void i2c1_init (int speed, int slaveadd); +int i2c_probe1 (uchar chip); +int i2c_read1 (uchar chip, uint addr, int alen, uchar * buffer, int len); +int i2c_write1 (uchar chip, uint addr, int alen, uchar * buffer, int len); +uchar i2c_reg_read1(uchar i2c_addr, uchar reg); +void i2c_reg_write1(uchar i2c_addr, uchar reg, uchar val); + +#endif /* CONFIG_HARD_I2C */ |