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| author | Stefan Roese <sr@denx.de> | 2009-11-19 14:03:17 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2009-11-23 16:27:02 +0100 |
| commit | eb5eb2b0f744f0cba405160c5d01335c40f09acf (patch) | |
| tree | ba637d27b660603fdf4b5f7092172aa621bfaab3 /include/4xx_i2c.h | |
| parent | b2f618f2150b15b2674f11d09e1c0fdfe460c1cd (diff) | |
| download | u-boot-imx-eb5eb2b0f744f0cba405160c5d01335c40f09acf.zip u-boot-imx-eb5eb2b0f744f0cba405160c5d01335c40f09acf.tar.gz u-boot-imx-eb5eb2b0f744f0cba405160c5d01335c40f09acf.tar.bz2 | |
ppc4xx: Cleanup PPC4xx I2C infrastructure
This patch cleans up the PPC4xx I2C intrastructure:
- Use C struct to describe the I2C registers instead of defines
- Coding style cleanup (braces, whitespace, comments, line length)
- Extract common code from i2c_read() and i2c_write()
- Remove unneeded IIC defines from ppc405.h & ppc440.h
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'include/4xx_i2c.h')
| -rw-r--r-- | include/4xx_i2c.h | 38 |
1 files changed, 21 insertions, 17 deletions
diff --git a/include/4xx_i2c.h b/include/4xx_i2c.h index 070657f..0c6c926 100644 --- a/include/4xx_i2c.h +++ b/include/4xx_i2c.h @@ -1,5 +1,5 @@ /* - * (C) Copyright 2007 + * (C) Copyright 2007-2009 * Stefan Roese, DENX Software Engineering, sr@denx.de. * * See file CREDITS for list of people who contributed to this @@ -52,22 +52,26 @@ #define I2C_BASE_ADDR (0xEF600500 + I2C_BUS_OFFS) #endif -#define I2C_REGISTERS_BASE_ADDRESS I2C_BASE_ADDR -#define IIC_MDBUF (I2C_REGISTERS_BASE_ADDRESS+IICMDBUF) -#define IIC_SDBUF (I2C_REGISTERS_BASE_ADDRESS+IICSDBUF) -#define IIC_LMADR (I2C_REGISTERS_BASE_ADDRESS+IICLMADR) -#define IIC_HMADR (I2C_REGISTERS_BASE_ADDRESS+IICHMADR) -#define IIC_CNTL (I2C_REGISTERS_BASE_ADDRESS+IICCNTL) -#define IIC_MDCNTL (I2C_REGISTERS_BASE_ADDRESS+IICMDCNTL) -#define IIC_STS (I2C_REGISTERS_BASE_ADDRESS+IICSTS) -#define IIC_EXTSTS (I2C_REGISTERS_BASE_ADDRESS+IICEXTSTS) -#define IIC_LSADR (I2C_REGISTERS_BASE_ADDRESS+IICLSADR) -#define IIC_HSADR (I2C_REGISTERS_BASE_ADDRESS+IICHSADR) -#define IIC_CLKDIV (I2C_REGISTERS_BASE_ADDRESS+IIC0_CLKDIV) -#define IIC_INTRMSK (I2C_REGISTERS_BASE_ADDRESS+IICINTRMSK) -#define IIC_XFRCNT (I2C_REGISTERS_BASE_ADDRESS+IICXFRCNT) -#define IIC_XTCNTLSS (I2C_REGISTERS_BASE_ADDRESS+IICXTCNTLSS) -#define IIC_DIRECTCNTL (I2C_REGISTERS_BASE_ADDRESS+IICDIRECTCNTL) +struct ppc4xx_i2c { + u8 mdbuf; + u8 res1; + u8 sdbuf; + u8 res2; + u8 lmadr; + u8 hmadr; + u8 cntl; + u8 mdcntl; + u8 sts; + u8 extsts; + u8 lsadr; + u8 hsadr; + u8 clkdiv; + u8 intrmsk; + u8 xfrcnt; + u8 xtcntlss; + u8 directcntl; + u8 intr; +}; /* MDCNTL Register Bit definition */ #define IIC_MDCNTL_HSCL 0x01 |