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sdps: Polled for Transfer Complete bit after cmd6.

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Polled for Transfer Complete bit after sending CMD6
in case of eMMC card. since CMD6 expects a R1b response
we need to check for Transfer complete before sending
next command.

Signed-off-by: P L Sai Krishna <lakshmis@xilinx.com>
Reviewed-by: Punnaiah Choudary Kalluri <punnaia@xilinx.com>
This commit is contained in:
P L Sai Krishna 2015-09-26 18:50:28 +05:30 • committed by Nava kishore Manne
parent 5155c4f47f
commit f0dfbbd126
2 changed files with 19 additions and 1 deletions
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2
XilinxProcessorIPLib/drivers/sdps/data/sdps.mdd
View file

@ -36,7 +36,7 @@ BEGIN driver sdps
OPTION supported_peripherals = (ps7_sdio psu_sd);
OPTION driver_state = ACTIVE;
OPTION copyfiles = all;
OPTION VERSION = 2.5;
OPTION VERSION = 2.6;
OPTION NAME = sdps;
END driver

18
XilinxProcessorIPLib/drivers/sdps/src/xsdps_options.c
View file

@ -293,6 +293,24 @@ s32 XSdPs_Change_BusWidth(XSdPs *InstancePtr)
Status = XST_FAILURE;
goto RETURN_PATH;
}
/* Check for transfer complete */
do {
StatusReg = XSdPs_ReadReg16(InstancePtr->Config.BaseAddress,
XSDPS_NORM_INTR_STS_OFFSET);
if ((StatusReg & XSDPS_INTR_ERR_MASK) != 0U) {
/* Write to clear error bits */
XSdPs_WriteReg16(InstancePtr->Config.BaseAddress,
XSDPS_ERR_INTR_STS_OFFSET,
XSDPS_ERROR_INTR_ALL_MASK);
Status = XST_FAILURE;
goto RETURN_PATH;
}
} while((StatusReg & XSDPS_INTR_TC_MASK) == 0U);
/* Write to clear bit */
XSdPs_WriteReg16(InstancePtr->Config.BaseAddress,
XSDPS_NORM_INTR_STS_OFFSET, XSDPS_INTR_TC_MASK);
}
#if defined (__arm__) || defined (__aarch64__)