RTEMS | Complete the u-boot support for qoriq BSP (!976)

[Ran Hong (@hongran86)]

Merge request https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/976 was reviewed by Ran Hong

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Ran Hong commented on a discussion on bsps/powerpc/qoriq/start/uboot_support.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/976#note_142053

 > +#if defined(HAS_UBOOT)
 > +/* Base address of U-Boot environment variables */
 > +const uint8_t *uboot_environment      = (const uint8_t *)0xfff40000;

This address is actually configurable by users. I am developing this feature for a specific board (mvme2500) that can run with the qoriq_e500 BSP. For mvme2500, it has a 512k MRAM (a type of nonvolatile memory) starting from address 0xfff00000, which can be configured to hold the u-boot environment, and it can be access using the same functions in bsps/powerpc/shared/u-boot. I updated the address and mentioned that this can be referenced to the mvme2500 manual.


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View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/976
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