diff options
| author | Heinrich Schuchardt | 2020-05-23 11:36:49 +0200 |
|---|---|---|
| committer | Tom Rini | 2020-05-25 11:54:53 -0400 |
| commit | 378fc83ebd542f1e06da624cd0822577e1ee4cf2 (patch) | |
| tree | afdcb79c2083d1ff7ec9f9ca944c27cde6737a50 /doc/README.dfu | |
| parent | 51028db1ca5a6abd400173b824c2761c8704388a (diff) | |
doc: dfu: describe eMMC partition number parameter
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>
Acked-by: Lukasz Majewski <lukma@denx.de>
Diffstat (limited to 'doc/README.dfu')
| -rw-r--r-- | doc/README.dfu | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/doc/README.dfu b/doc/README.dfu index caf1c9998cf..29230ec6544 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> |