55 lines
1.8 KiB
ReStructuredText
55 lines
1.8 KiB
ReStructuredText
chumbyone Chumby Industrie's Falconwing
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This device is also known as "chumby one" (http://www.chumby.com/)
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This CPU card is based on a Freescale i.MX23 CPU. The card is shipped with:
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* 64 MiB synchronous dynamic RAM (DDR type)
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Memory layout when barebox is running:
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* 0x40000000 start of SDRAM
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* 0x40000100 start of kernel's boot parameters
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* below malloc area: stack area
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* below barebox: malloc area
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* 0x42000000 start of barebox
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How to get the bootloader binary image
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--------------------------------------
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Using the default configuration::
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make ARCH=arm chumbyone_defconfig
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Build the bootloader binary image::
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make ARCH=arm CROSS_COMPILE=armv5compiler
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**NOTE:** replace the armv5compiler with your ARM v5 cross compiler.
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How to prepare an MCI card to boot the "chumby one" with barebox
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----------------------------------------------------------------
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* Create four primary partitions on the MCI card
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* the first one for the bootlets (about 256 kiB)
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* the second one for the persistant environment (size is up to you, at least 256k)
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* the third one for the kernel (2 MiB ... 4 MiB in size)
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* the fourth one for the root filesystem which can fill the rest of the available space
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* Mark the first partition with the partition ID "53" and copy the
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bootlets into this partition (currently not part of barebox!).
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* Copy the default barebox environment into the second partition
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(no filesystem required).
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* Copy the kernel into the third partition (no filesystem required).
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* Create the root filesystem in the fourth partition. You may copy an
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image into this partition or you can do it in the classic way:
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mkfs on it, mount it and copy all required data and programs into
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it.
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