linux-kernel - Re: s3c24xx nand: add command line partition table parsing support (resend)

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Date:	Thu, 9 Oct 2008 23:48:51 +0800
From:	"Conke Hu" <conke.hu@...il.com>
To:	"Russell King - ARM Linux" <linux@....linux.org.uk>
Cc:	Linux-arm-kernel@...ts.arm.linux.org.uk,
	"Ben Dooks" <ben-linux@...ff.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: s3c24xx nand: add command line partition table parsing support (resend)

Hi Russel,
    Is this one OK? we're looking forward to applying this patch :)

regards,
conke

On Thu, Sep 18, 2008 at 11:58 PM, Conke Hu <conke.hu@...il.com> wrote:
> Add mtd id and  command line partition table parsing support for
> s3c24xx nand driver.
>
> Signed-off-by: Conke Hu <conke.hu@...il.com>
> Signed-off-by: Linke Wang <linke.wang@...il.com>
> ------------------
> diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
> index 556139e..db0d331 100644
> --- a/drivers/mtd/nand/s3c2410.c
> +++ b/drivers/mtd/nand/s3c2410.c
> @@ -48,6 +48,8 @@
>  #include <asm/plat-s3c/regs-nand.h>
>  #include <asm/plat-s3c/nand.h>
>
> +#define S3C_NAND_NAME_LEN 16
> +
>  #ifdef CONFIG_MTD_NAND_S3C2410_HWECC
>  static int hardware_ecc = 1;
>  #else
> @@ -60,6 +62,9 @@ static int clock_stop = 1;
>  static const int clock_stop = 0;
>  #endif
>
> +#ifdef CONFIG_MTD_PARTITIONS
> +static const char *s3c_part_probes[] = {"cmdlinepart", NULL};
> +#endif
>
>  /* new oob placement block for use with hardware ecc generation
>  */
> @@ -80,6 +85,7 @@ struct s3c2410_nand_mtd {
>        struct s3c2410_nand_set         *set;
>        struct s3c2410_nand_info        *info;
>        int                             scan_res;
> +       char                    name[S3C_NAND_NAME_LEN];
>  };
>
>  enum s3c_cpu_type {
> @@ -649,6 +655,15 @@ static int s3c2410_nand_add_partition(struct
> s3c2410_nand_info *info,
>                                      struct s3c2410_nand_mtd *mtd,
>                                      struct s3c2410_nand_set *set)
>  {
> +#ifdef CONFIG_MTD_CMDLINE_PARTS
> +       int nr_parts;
> +       struct mtd_partition *partitions;
> +
> +       nr_parts = parse_mtd_partitions(&mtd->mtd, s3c_part_probes, &partitions, 0);
> +       if (nr_parts > 0 && partitions != NULL)
> +               return add_mtd_partitions(&mtd->mtd, partitions, nr_parts);
> +#endif
> +
>        if (set == NULL)
>                return add_mtd_device(&mtd->mtd);
>
> @@ -892,6 +907,9 @@ static int s3c24xx_nand_probe(struct platform_device *pdev,
>        for (setno = 0; setno < nr_sets; setno++, nmtd++) {
>                pr_debug("initialising set %d (%p, info %p)\n", setno, nmtd, info);
>
> +               snprintf(nmtd->name, sizeof(nmtd->name), "s3c_nand%d", setno);
> +               nmtd->mtd.name = nmtd->name;
> +
>                s3c2410_nand_init_chip(info, nmtd, sets);
>
>                nmtd->scan_res = nand_scan_ident(&nmtd->mtd,
>
--
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