https://becomwiki.live.md-websolutions.com/index.php?action=history&feed=atom&title=Redboot_development_%28CM-i.MX27%29Redboot development (CM-i.MX27) - Versionsgeschichte2026-05-13T15:00:36ZVersionsgeschichte dieser Seite in BECOM Systems SupportMediaWiki 1.43.5https://becomwiki.live.md-websolutions.com/index.php?title=Redboot_development_(CM-i.MX27)&diff=142&oldid=prevPeter: 1 Version importiert2023-10-31T08:03:07Z<p>1 Version importiert</p>
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<p><b>Neue Seite</b></p><div>Redboot is used as the boot loader on the CM-i.MX27 core module. The boot loader is based on Freescale's release 200840. If you have the need for customizing Redboot, we summarized important steps here.<br />
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== Get the Redboot sources ==<br />
Get the source code from our GIT repository:<br />
git clone git://git.becom-group.com/git/redboot_mx27.git<br />
<br />
This repository contains everything you need to build Redboot:<br />
*Source code: ''/ecos_20050912''<br />
*Ecos tools: ''/ecostools/tools''<br />
*Tool chain for ARM: ''/ecostools/gnutools/arm-elf<br />
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<br />
== Build Redboot ==<br />
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For your convenience, we supply two scripts for building. Initially, source the script ''set-paths-for-building'':<br />
harald@WS-HP4600-35:~/imx/27/redboot$ . ./set-paths-for-building<br />
harald@WS-HP4600-35:~/imx/27/redboot$<br />
which puts the Ecos tools and the tool chain in your $PATH.<br />
<br />
Then change into the ''build/'' directory and execute ''build-redboot.sh''. This script deletes the old build and re-builds Redboot.<br />
harald@WS-HP4600-35:~/imx/27/redboot$ cd build/<br />
harald@WS-HP4600-35:~/imx/27/redboot/build$ ./build_redboot.sh <br />
U CYGHWR_REDBOOT_ARM_LINUX_EXEC_ADDRESS_DEFAULT, new inferred value 0xA0008000<br />
U CYGSEM_HAL_ROM_MONITOR, new inferred value 1<br />
U CYGIMP_HAL_COMMON_INTERRUPTS_USE_INTERRUPT_STACK, new inferred value 0<br />
U CYGHWR_DEVS_FLASH_INTEL_28F128P30, new inferred value 1<br />
U CYGSEM_IO_FLASH_VERIFY_PROGRAM, new inferred value 0<br />
U CYGSEM_IO_FLASH_READ_INDIRECT, new inferred value 1<br />
make -r -C hal/arm/arch/current headers<br />
make[1]: Entering directory `/home/harald/imx/27/redboot/build/hal/arm/arch/current'<br />
[...]<br />
make[1]: Leaving directory `/home/harald/imx/27/redboot/build/redboot/current'<br />
make -r -C hal/arm/mx27/bluetechnix/current /home/harald/imx/27/redboot/build/install/bin/redboot.bin<br />
make[1]: Entering directory `/home/harald/imx/27/redboot/build/hal/arm/mx27/bluetechnix/current'<br />
arm-none-eabi-objcopy --strip-debug /home/harald/imx/27/redboot/build/install/bin/redboot.elf /home/harald/imx/27/redboot/build/install/bin/redboot.img<br />
arm-none-eabi-objcopy -O srec /home/harald/imx/27/redboot/build/install/bin/redboot.elf /home/harald/imx/27/redboot/build/install/bin/redboot.srec<br />
arm-none-eabi-objcopy -O binary /home/harald/imx/27/redboot/build/install/bin/redboot.elf /home/harald/imx/27/redboot/build/install/bin/redboot.bin<br />
make[1]: Leaving directory `/home/harald/imx/27/redboot/build/hal/arm/mx27/bluetechnix/current'<br />
build finished<br />
harald@WS-HP4600-35:~/imx/27/redboot/build$ <br />
The ready image is stored in ''/build/install/bin/redboot.bin''. It is automatically copied to ''/tftpboot''.<br />
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== Redboot configuration ==<br />
<br />
The home for CM-i.MX27 specific configuration is ''/ecos_20050912/packages/hal/arm/mx27/bluetechnix/current''.<br />
*Package configuration: ''misc/redboot_ROMRAM.ecm''<br />
*Code defines etc.: ''include/*''<br />
*Specific source code: ''src/*''<br />
<br />
Here are some locations of device drivers:<br />
*Flash driver: ''/ecos_20050912/packages/devs/flash/arm/mxc/current'' and ''/ecos_20050912/packages/devs/flash/intel/28fxxx/current''<br />
*FEC Ethernet driver: ''/ecos_20050912/packages/devs/eth/fec/current''<br />
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== Further documentation ==<br />
<br />
We have summarized a short [[Redboot short reference|reference]] for Redboot.<br />
<br />
The GIT repository also contains the Redboot documentation as it is provided by Freescale: ''/redboot_mx27pdk/doc/redboot_mx27pdk.pdf''<br />
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Official website: [https://ecos.sourceware.org/redboot/]<br />
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[[Category:i.MX27]]</div>en>Peter