[PATCH 1/5] mtd: rawnand: fsl_elbc: Implement RNDOUT command

Pali Rohár pali at kernel.org
Mon Apr 4 18:17:18 CEST 2022


This is needed for SW ECC.

Signed-off-by: Pali Rohár <pali at kernel.org>
---
 drivers/mtd/nand/raw/fsl_elbc_nand.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/nand/raw/fsl_elbc_nand.c b/drivers/mtd/nand/raw/fsl_elbc_nand.c
index ddfd75d32d06..f8698ec0158a 100644
--- a/drivers/mtd/nand/raw/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/raw/fsl_elbc_nand.c
@@ -312,6 +312,14 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		fsl_elbc_run_command(mtd);
 		return;
 
+	/* RNDOUT moves the pointer inside the page */
+	case NAND_CMD_RNDOUT:
+		vdbg("fsl_elbc_cmdfunc: NAND_CMD_RNDOUT, column: 0x%x.\n",
+		     column);
+
+		ctrl->index = column;
+		return;
+
 	/* READOOB reads only the OOB because no ECC is performed. */
 	case NAND_CMD_READOOB:
 		vdbg("fsl_elbc_cmdfunc: NAND_CMD_READOOB, page_addr:"
-- 
2.20.1



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