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fastboot: add command to select the eMMC boot configuration

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Add command oem bootbus which executes the command
``mmc bootbus <id> <arg>`` on the current fastboot mmc device
(<i> = CONFIG_FASTBOOT_FLASH_MMC_DEV) to set the eMMC boot
configuration on first update, with
<arg> =  boot_bus_width reset_boot_bus_width boot_mode

$> fastboot oem bootbus:<boot_bus_width> <reset_boot_bus_width> <boot_mode>

Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
This commit is contained in:
Patrick Delaunay
2021-01-27 14:46:49 +01:00
committed by Marek Vasut
parent b2f6b97b78
commit 0c0394b502
4 changed files with 47 additions and 0 deletions
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doc/android/fastboot.rst
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@@ -25,6 +25,7 @@ The following OEM commands are supported (if enabled):
- ``oem format`` - this executes ``gpt write mmc %x $partitions``
- ``oem partconf`` - this executes ``mmc partconf %x <arg> 0`` to configure eMMC
with <arg> = boot_ack boot_partition
- ``oem bootbus`` - this executes ``mmc bootbus %x %s`` to configure eMMC
Support for both eMMC and NAND devices is included.