Hello
I have an arm based mx31 freescale processor. Using patches from freescale, i
was able to create redboot image ang with minor configuration changes it
worked. Now i have a few questions.
1. The image is a romram image. Loads from nor flash and executes in ram. The
ram is an sdram at physical addr 0x80000000, virt addr mapped to 0x0. I now
want use a ram at a different physical address. What changes do i do?
2. What does this do
X_ARM_MMU_SECTION(0x800, 0x000, 0x80, ARM_CACHEABLE, ARM_BUFFERABLE,
ARM_ACCESS_PERM_RW_RW); /* SDRAM */
X_ARM_MMU_SECTION(0x800, 0x800, 0x80, ARM_CACHEABLE, ARM_BUFFERABLE,
ARM_ACCESS_PERM_RW_RW); /* SDRAM */
Should i add the new ram physical address here? What is ARM_CACHEABLE and
BUFFERABLE? Does the above write into registers of processor or is it only a
table used by redboot code?
3. As a general query, is it possible to load and execute images like redboot
from a PSRAM.
Thanks
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