[PATH] NAND Flash support for Intel IXP4xx platform

[Thomas Gleixner]

On Sat, 2007-04-28 at 15:41 +0400, Ruslan V. Sushko wrote:
> +static void ixp_write_buf(struct mtd_info *mtd, const u_char * buf, int 
> len)
> +{
> +       int i;
> +       struct nand_chip *this = mtd->priv;
> +
> +       for (i = 0; i < len; i++)
> +               writeb(buf[i], this->IO_ADDR_W);
> +}

How excatly is this functionally different from the generic write_buf
function in nand_base.c ?

static void nand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
{
        int i;
        struct nand_chip *chip = mtd->priv;

        for (i = 0; i < len; i++)
                writeb(buf[i], chip->IO_ADDR_W);
}

> +static void ixp4xx_hwcontrol(struct mtd_info *mtd, int cmd, unsigned 
> int ctrl)
> +{
> +       struct nand_chip *this = mtd->priv;
> +       struct ixp4xx_faddr_info_t *addr_info = this->priv;

Newline between variables and code !

> +       if (ctrl & NAND_CTRL_CHANGE) {
> +               addr_info->offset = (ctrl & NAND_CLE) ? IXP4XX_NAND_CLE : 0;
> +               addr_info->offset |= (ctrl & NAND_ALE) ? IXP4XX_NAND_ALE 
> : 0;

Your patch is word wrapped !

> +               if (addr_info->chip_select)
> +                       addr_info->chip_select(ctrl);
> +       }
> +
> +       if (cmd != NAND_CMD_NONE)
> +               writeb(cmd, this->IO_ADDR_W + addr_info->offset);
> +}

Aside of that I agree with Lennert, that we really need to get around
and make this real platform code.

	tglx