From: shaochangliang shaochangliang@huawei.com
Use I2C 400KB speed for config CDR.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ming Huang ming.huang@linaro.org --- Silicon/Hisilicon/Library/I2CLib/I2CLib.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/Silicon/Hisilicon/Library/I2CLib/I2CLib.c b/Silicon/Hisilicon/Library/I2CLib/I2CLib.c index ed44ac204f..55c030a3af 100644 --- a/Silicon/Hisilicon/Library/I2CLib/I2CLib.c +++ b/Silicon/Hisilicon/Library/I2CLib/I2CLib.c @@ -28,6 +28,9 @@ #include "I2CLibInternal.h" #include "I2CHw.h"
+#define I2C_100KB_SPEED 0x1 +#define I2C_400KB_SPEED 0x2 + VOID I2C_Delay ( UINT32 Count @@ -158,7 +161,11 @@ I2CInit (
I2C_REG_READ (Base + I2C_CON_OFFSET, I2cControlReg.Val32); I2cControlReg.bits.master = 1; - I2cControlReg.bits.Speed = 0x1; + if(SpeedMode == Normal) { + I2cControlReg.bits.Speed = I2C_100KB_SPEED; + } else { + I2cControlReg.bits.Speed = I2C_400KB_SPEED; + } I2cControlReg.bits.restart_en = 1; I2cControlReg.bits.slave_disable = 1; I2C_REG_WRITE (Base + I2C_CON_OFFSET, I2cControlReg.Val32);