From: shaochangliang <[email protected]> Use I2C 400KB speed for config CDR.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ming Huang <[email protected]> Reviewed-by: Leif Lindholm <[email protected]> --- 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 b8c92fa8ea..63d9e2af25 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); -- 2.18.0 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
