[PATCH v3 3/3] mtd/nand : workaround for Freescale FCM to support large-page Nand chip

Artem Bityutskiy dedekind1 at gmail.com
Wed Nov 23 08:04:18 EST 2011


On Tue, 2011-11-15 at 17:29 +0800, b35362 at freescale.com wrote:
> +               /*
> +                * Freescale FCM controller has a 2K size limitation of buffer
> +                * RAM, so elbc_fcm_ctrl->buffer have to be used if writesize
> +                * of chip is greater than 2048.
> +                * We malloc a large enough buffer at this point, because we
> +                * don't know writesize before calling nand_scan(). We will
> +                * re-malloc later if needed.
> +                */
> +               elbc_fcm_ctrl->buffer = kmalloc(4096 * 6, GFP_KERNEL);
> +               if (!elbc_fcm_ctrl->buffer)
> +                       return -ENOMEM; 

Why 4096*6? Judging from the comment it should be 4096.

Artem.



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