From: shaochangliang <[email protected]> Because I2C Port5 salve device connect under 95545 device, it will cost more time to access I2C slave device, so add delay time for HNS auto config.
Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: shaochangliang <[email protected]> Signed-off-by: Ming Huang <[email protected]> Signed-off-by: Heyi Guo <[email protected]> --- Silicon/Hisilicon/Library/I2CLib/I2CLib.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) diff --git a/Silicon/Hisilicon/Library/I2CLib/I2CLib.c b/Silicon/Hisilicon/Library/I2CLib/I2CLib.c index 16636987a6..fa8c510f36 100644 --- a/Silicon/Hisilicon/Library/I2CLib/I2CLib.c +++ b/Silicon/Hisilicon/Library/I2CLib/I2CLib.c @@ -248,7 +248,11 @@ CheckI2CTimeOut ( if (Transfer == I2CTx) { ulFifo = I2C_GetTxStatus (Socket,Port); while (ulFifo != 0) { - I2C_Delay(2); + if (Port == 5) { + I2C_Delay(1000); + } else { + I2C_Delay(2); + } if (++ulTimes > I2C_READ_TIMEOUT) { (VOID)I2C_Disable (Socket, Port); return EFI_TIMEOUT; @@ -259,7 +263,11 @@ CheckI2CTimeOut ( else { ulFifo = I2C_GetRxStatus (Socket,Port); while (ulFifo == 0) { - I2C_Delay(2); + if (Port == 5) { + I2C_Delay(1000); + } else { + I2C_Delay(2); + } if (++ulTimes > I2C_READ_TIMEOUT) { (VOID)I2C_Disable (Socket, Port); return EFI_TIMEOUT; @@ -359,7 +367,7 @@ I2CWrite(I2C_DEVICE *I2cInfo, UINT16 InfoOffset, UINT32 ulLength, UINT8 *pBuf) ulFifo = I2C_GetTxStatus(I2cInfo->Socket,I2cInfo->Port); while(ulFifo > I2C_TXRX_THRESHOLD) { - I2C_Delay(2); + I2C_Delay(1000); if(++ulTimes > I2C_READ_TIMEOUT) { (VOID)I2C_Disable(I2cInfo->Socket, I2cInfo->Port); -- 2.17.0 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
