On 12/06/2011 02:54 AM, Shengzhou Liu wrote:
> diff --git a/drivers/mtd/nand/fsl_elbc_nand.c
> b/drivers/mtd/nand/fsl_elbc_nand.c
> index 4f405a0..b4db407 100644
> --- a/drivers/mtd/nand/fsl_elbc_nand.c
> +++ b/drivers/mtd/nand/fsl_elbc_nand.c
> @@ -349,19 +349,24 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd,
> unsigned int command,
> fsl_elbc_run_command(mtd);
> return;
>
> - /* READID must read all 5 possible bytes while CEB is active */
> case NAND_CMD_READID:
> - dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD_READID.\n");
> + case NAND_CMD_PARAM:
> + dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD %x\n", command);
>
> out_be32(&lbc->fir, (FIR_OP_CM0 << FIR_OP0_SHIFT) |
> (FIR_OP_UA << FIR_OP1_SHIFT) |
> (FIR_OP_RBW << FIR_OP2_SHIFT));
> - out_be32(&lbc->fcr, NAND_CMD_READID << FCR_CMD0_SHIFT);
> - /* nand_get_flash_type() reads 8 bytes of entire ID string */
> - out_be32(&lbc->fbcr, 8);
> - elbc_fcm_ctrl->read_bytes = 8;
> + out_be32(&lbc->fcr, command << FCR_CMD0_SHIFT);
> + /* reads 8 bytes of entire ID string */
> + if (NAND_CMD_READID == command) {
if (command == NAND_CMD_READID) {
> + out_be32(&lbc->fbcr, 8);
> + elbc_fcm_ctrl->read_bytes = 8;
> + } else {
> + out_be32(&lbc->fbcr, 256);
> + elbc_fcm_ctrl->read_bytes = 256;
> + }
Any harm in always using 256?
-Scott
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