Difference between revisions of "APF6 EMMC"

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(APF6 eMMC layout)
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* Boot: The kernel and the device tree (inside a ''dtbs/'' directory) are on this partition (ext4 formatted),
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* Rootfs: the rootfs is on this partition (ext4 formatted).
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{| border="1" cellpadding="5" cellspacing="0" summary="APF6 eMMC User data partitions details"
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|- style="background:#efefef;" align="center"
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!Name || U-Boot device  || Linux device || Size || Comment
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|----------------
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|Boot || mmc dev 0 1 || || 24 MBytes (49152 blocks) || The kernel and the device tree (inside a ''dtbs/'' directory) are on this partition (ext4 formatted)
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|----------------
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|Rootfs || mmc dev 0 2 || || Rest of space (<3816448 blocks) || the rootfs is on this partition (ext4 formatted)
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|----------------
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|}
  
 
==Links==
 
==Links==
 
* [http://fr.slideshare.net/linaroorg/intro-to-emmc http://fr.slideshare.net/linaroorg/intro-to-emmc]
 
* [http://fr.slideshare.net/linaroorg/intro-to-emmc http://fr.slideshare.net/linaroorg/intro-to-emmc]

Revision as of 19:15, 3 January 2015

APF6 eMMC layout

By default, the 4GB eMMC on APF6 board has 4 physical partitions:

Boot0 Boot1 RPMB User Data


Name U-Boot name Size Comment
boot0 mmc dev 0 1 2MBytes U-Boot is installed on this partition
boot1 mmc dev 0 2 2MBytes Not used
rpmb mmc dev 0 3 512KBytes Not used
User Data mmc dev 0 0 remaining space Kernel, device tree and rootfs

Boot0 partition layout

Offset Comment
0
1 KB U-Boot SPL (apf6-u-boot.spl)
69 KB U-Boot IMG (apf6-u-boot.img)
512 KB
1024 KB U-Boot environment
1536 KB Redundant U-Boot environment

User Data partition layout

There are two primary partitions on the "User Data" physical partition:

Boot Rootfs


Name U-Boot device Linux device Size Comment
Boot mmc dev 0 1 24 MBytes (49152 blocks) The kernel and the device tree (inside a dtbs/ directory) are on this partition (ext4 formatted)
Rootfs mmc dev 0 2 Rest of space (<3816448 blocks) the rootfs is on this partition (ext4 formatted)

Links