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| -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> |