[U-Boot] [PATCH 4/4] cmd: mtd: Add info text to mtd erase subcommand

[Boris Brezillon <boris.brezillon@bootlin.com>]

On Mon,  6 Aug 2018 17:12:53 +0200
Stefan Roese <sr@denx.de> wrote:

> Adding this info helps seeing, what really is being erased - especially
> if no arguments are passed for offset and size. Now this is the
> output:
> 
> => mtd erase spi-nand0  
> Erasing 0x00000000 ... 0x07ffffff (65536 page(s))
> nand: attempt to erase a bad/reserved block @6000000
> nand: attempt to erase a bad/reserved block @7fe0000
> 
> Signed-off-by: Stefan Roese <sr@denx.de>
> Cc: Miquel Raynal <miquel.raynal@bootlin.com>
> Cc: Boris Brezillon <boris.brezillon@bootlin.com>
> Cc: Jagan Teki <jagan@openedev.com>
> ---
>  cmd/mtd.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/cmd/mtd.c b/cmd/mtd.c
> index 38a89736cf..6d27698d1e 100644
> --- a/cmd/mtd.c
> +++ b/cmd/mtd.c
> @@ -355,6 +355,9 @@ static int do_mtd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
>  			return EINVAL;
>  		}
>  
> +		printf("Erasing 0x%08llx ... 0x%08llx (%d page(s))\n",
> +		       off, off + len - 1, mtd_len_to_pages(mtd, len));

Just a detail, but we usually count things in eraseblocks (not pages)
when erasing an MTD device (you can use mtd_div_by_eb(len, mtd) to do
that).

> +
>  		erase_op.mtd = mtd;
>  		erase_op.addr = off;
>  		erase_op.len = len;