[PATCH 1/1] doc: dfu: describe eMMC partition number parameter

[Lukasz Majewski <lukma@denx.de>]

On Sat, 23 May 2020 11:36:49 +0200
Heinrich Schuchardt <xypron.glpk@gmx.de> wrote:

Thank you Heinrich for preparing those documentation improvement.

> In dfu_alt_info for eMMC the eMMC partition number can be specified.
> 
> The separator in dfu_alt_info is a semicolon not a comma.
> 
> Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
> ---
>  doc/README.dfu | 21 +++++++++++++++------
>  1 file changed, 15 insertions(+), 6 deletions(-)
> 
> diff --git a/doc/README.dfu b/doc/README.dfu
> index caf1c9998c..29230ec654 100644
> --- a/doc/README.dfu
> +++ b/doc/README.dfu
> @@ -49,7 +49,7 @@ Configuration Options:
> 
>  Environment variables:
>    the dfu command use 3 environments variables:
> -  "dfu_alt_info" : the DFU setting for the USB download gadget with
> a comma
> +  "dfu_alt_info" : the DFU setting for the USB download gadget with
> a semicolon separated string of information on each alternate:
>                     dfu_alt_info="<alt1>;<alt2>;....;<altN>"
> 
> @@ -87,12 +87,21 @@ Commands:
>    "mmc" (for eMMC and SD card)
>      cmd: dfu 0 mmc <dev>
>      each element in "dfu_alt_info" =
> -      <name> raw <offset> <size>   raw access to mmc device
> -      <name> part <dev> <part_id>  raw acces to partition
> -      <name> fat <dev> <part_id>   file in FAT partition
> -      <name> ext4 <dev> <part_id>  file in EXT4 partition
> +      <name> raw <offset> <size> [mmcpart <num>]   raw access to mmc
> device
> +      <name> part <dev> <part_id> [mmcpart <num>]  raw access to
> partition
> +      <name> fat <dev> <part_id> [mmcpart <num>]   file in FAT
> partition
> +      <name> ext4 <dev> <part_id> [mmcpart <num>]  file in EXT4
> partition +
> +      with <partid> being the GPT or DOS partition index,
> +      with <num> being the eMMC hardware partition number.
> +
> +    A value of environment variable dfu_alt_info for eMMC could be:
> +
> +      "u-boot raw 0x3e 0x800 mmcpart 1;bl2 raw 0x1e 0x1d mmcpart 1"
> +
> +    A value of environment variable dfu_alt_info for SD card could
> be:
> 
> -      with <partid> is the GPT or DOS partition index
> +      "u-boot raw 0x80 0x800;uImage ext4 0 2"
> 
>    "nand" (raw slc nand device)
>      cmd: dfu 0 nand <dev>
> --
> 2.26.2
> 

Acked-by: Lukasz Majewski <lukma@denx.de>

Tom, I will not be able to prepare any PR by the end of the incoming
week. As those (this and following patches) are documentation upgrading
patches, please pull them directly to -master.
Thanks in advance.


Best regards,

Lukasz Majewski

--

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