Hi, experts.
I'm developing pagetable on exynos5250 and exynos5433.
But i have very strange problem....
when i mapping secure-memory-area as section with attributes that is
S = 1, TEX= 001, C =1, B = 1 => Outer and Inner Write-Back, Write-Allocate, Normal memory type.
or
S = 1, TEX= 000, C =1, B = 1 => Outer and Inner Write-Back, no Write-Allocate, Normal memory type,
it occurs Spurious interrupt (1023).. and i'cant process anymore.
But when i set that area with attributes that is
S = 1, TEX= 000, C =1, B = 0 ==> Outer and Inner Write-Through, no Write-Allocate, Normal memory type.
it works well..
However, when i try to map secure-memory-area with attributes which happen Interrupt on exynos5250, it work very well at exynos5433.
I don't know why this happens, and secure-memory-area isn't shared with Non-Secure.
also i map secure-memory-area as Section.
the memory address where interrupt happens when i try to set Outer and Inner Write-Back, write-Allocate, Normal memory type are
0xBF000000 ~ 0xC0000000. ( will be used in secure mode - DRAM ) and
0x02000000 ~ 0x02100000 (IRAM).
Could share your experience and knowledge for this beginner please?
Thanks.