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| author | Stefan Roese <sr@denx.de> | 2007-02-20 10:27:08 +0100 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2007-02-20 10:27:08 +0100 |
| commit | 79b2d0bb2eae09602448f7a7cb56530d2f31e6c6 (patch) | |
| tree | ec226ccf8314e37981f946df4391446a6ff9dc11 /include/440_i2c.h | |
| parent | 7372ca68227930d03cffa548310524cad5b96733 (diff) | |
| download | u-boot-imx-79b2d0bb2eae09602448f7a7cb56530d2f31e6c6.zip u-boot-imx-79b2d0bb2eae09602448f7a7cb56530d2f31e6c6.tar.gz u-boot-imx-79b2d0bb2eae09602448f7a7cb56530d2f31e6c6.tar.bz2 | |
[PATCH] PPC4xx: Add support for multiple I2C busses
This patch adds support for multiple I2C busses on the PPC4xx
platforms. Define CONFIG_I2C_MULTI_BUS in the board config file
to make use of this feature.
It also merges the 405 and 440 i2c header files into one common
file 4xx_i2c.h.
Also the 4xx i2c reset procedure is reworked since I experienced
some problems with the first access on the 440SPe Katmai board.
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'include/440_i2c.h')
| -rw-r--r-- | include/440_i2c.h | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/include/440_i2c.h b/include/440_i2c.h deleted file mode 100644 index 0c2bf36..0000000 --- a/include/440_i2c.h +++ /dev/null @@ -1,71 +0,0 @@ -#ifndef _440_i2c_h_ -#define _440_i2c_h_ - -#if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ - defined(CONFIG_440EPX) || defined(CONFIG_440GRX) -#define I2C_BASE_ADDR (CFG_PERIPHERAL_BASE + 0x00000700) -#else -#define I2C_BASE_ADDR (CFG_PERIPHERAL_BASE + 0x00000400) -#endif /*CONFIG_440EP CONFIG_440GR*/ - -#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+IICCLKDIV) -#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) - -/* MDCNTL Register Bit definition */ -#define IIC_MDCNTL_HSCL 0x01 -#define IIC_MDCNTL_EUBS 0x02 -#define IIC_MDCNTL_EINT 0x04 -#define IIC_MDCNTL_ESM 0x08 -#define IIC_MDCNTL_FSM 0x10 -#define IIC_MDCNTL_EGC 0x20 -#define IIC_MDCNTL_FMDB 0x40 -#define IIC_MDCNTL_FSDB 0x80 - -/* CNTL Register Bit definition */ -#define IIC_CNTL_PT 0x01 -#define IIC_CNTL_READ 0x02 -#define IIC_CNTL_CHT 0x04 -#define IIC_CNTL_RPST 0x08 -/* bit 2/3 for Transfer count*/ -#define IIC_CNTL_AMD 0x40 -#define IIC_CNTL_HMT 0x80 - -/* STS Register Bit definition */ -#define IIC_STS_PT 0X01 -#define IIC_STS_IRQA 0x02 -#define IIC_STS_ERR 0X04 -#define IIC_STS_SCMP 0x08 -#define IIC_STS_MDBF 0x10 -#define IIC_STS_MDBS 0X20 -#define IIC_STS_SLPR 0x40 -#define IIC_STS_SSS 0x80 - -/* EXTSTS Register Bit definition */ -#define IIC_EXTSTS_XFRA 0X01 -#define IIC_EXTSTS_ICT 0X02 -#define IIC_EXTSTS_LA 0X04 - -/* XTCNTLSS Register Bit definition */ -#define IIC_XTCNTLSS_SRST 0x01 -#define IIC_XTCNTLSS_EPI 0x02 -#define IIC_XTCNTLSS_SDBF 0x04 -#define IIC_XTCNTLSS_SBDD 0x08 -#define IIC_XTCNTLSS_SWS 0x10 -#define IIC_XTCNTLSS_SWC 0x20 -#define IIC_XTCNTLSS_SRS 0x40 -#define IIC_XTCNTLSS_SRC 0x80 -#endif |