[PATCH 14/14] qcom: mtd: nand: programmed NAND_DEV_CMD_VLD register
From: Abhishek Sahu <hidden>
Date: 2017-06-29 07:18:41
Also in:
linux-arm-msm, lkml
Subsystem:
arm/qualcomm mailing list, memory technology devices (mtd), nand flash subsystem, the rest · Maintainers:
Miquel Raynal, Richard Weinberger, Vignesh Raghavendra, Linus Torvalds
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 <redacted> --- 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) {
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