The current driver is failing without complete bootchain in BAM mode since NAND_DEV_CMD_VLD value is not valid. So programmed the required value in NAND_DEV_CMD_VLD register.
Signed-off-by: Abhishek Sahu <[email protected]> --- drivers/mtd/nand/qcom_nandc.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c index 641e85d..260167b 100644 --- a/drivers/mtd/nand/qcom_nandc.c +++ b/drivers/mtd/nand/qcom_nandc.c @@ -121,6 +121,9 @@ /* NAND_CTRL bits */ #define BAM_MODE_EN BIT(0) + +/* Value for NAND_DEV_CMD_VLD */ +#define NAND_DEV_CMD_VLD_VAL (0x1d) /* * the NAND controller performs reads/writes with ECC in 516 byte chunks. * the driver calls the chunks 'step' or 'codeword' interchangeably @@ -2676,6 +2679,7 @@ static int qcom_nandc_setup(struct qcom_nand_controller *nandc) /* kill onenand */ nandc_write(nandc, SFLASHC_BURST_CFG, 0); + nandc_write(nandc, NAND_DEV_CMD_VLD, NAND_DEV_CMD_VLD_VAL); /* enable ADM or BAM DMA */ if (!nandc->dma_bam_enabled) { -- QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation
