- Fix NAND_CMD_READID command for ONFI detect. - Add NAND_CMD_PARAM command to read the ONFI parameter page.
Signed-off-by: Prabhakar Kushwaha prabhakar@freescale.com Acked-by: Scott Wood scottwood@freescale.com --- Based upon http://git.denx.de/u-boot.git branch master
drivers/mtd/nand/fsl_ifc_nand.c | 21 ++++++++++++++++----- 1 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 5cac78b..99630f9 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -384,19 +384,30 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
/* READID must read all possible bytes while CEB is active */ case NAND_CMD_READID: + case NAND_CMD_PARAM: { + int timing = IFC_FIR_OP_RB; + if (command == NAND_CMD_PARAM) + timing = IFC_FIR_OP_RBCD; + out_be32(&ifc->ifc_nand.nand_fir0, (IFC_FIR_OP_CMD0 << IFC_NAND_FIR0_OP0_SHIFT) | (IFC_FIR_OP_UA << IFC_NAND_FIR0_OP1_SHIFT) | - (IFC_FIR_OP_RB << IFC_NAND_FIR0_OP2_SHIFT)); + (timing << IFC_NAND_FIR0_OP2_SHIFT)); out_be32(&ifc->ifc_nand.nand_fcr0, - NAND_CMD_READID << IFC_NAND_FCR0_CMD0_SHIFT); - /* 4 bytes for manuf, device and exts */ - out_be32(&ifc->ifc_nand.nand_fbcr, 4); - ctrl->read_bytes = 4; + command << IFC_NAND_FCR0_CMD0_SHIFT); + out_be32(&ifc->ifc_nand.row3, column); + + /* + * although currently it's 8 bytes for READID, we always read + * the maximum 256 bytes(for PARAM) + */ + out_be32(&ifc->ifc_nand.nand_fbcr, 256); + ctrl->read_bytes = 256;
set_addr(mtd, 0, 0, 0); fsl_ifc_run_command(mtd); return; + }
/* ERASE1 stores the block and page address */ case NAND_CMD_ERASE1: