NSC location has the following requirements:
1. By IDAU, 0~0x4000 is secure. NSC can only locate in 0x4000~0x10000000.
2. Greentea flash IAP uses last 4 sectors for its test. Avoid this range.
3. Greentea NVSTORE uses last 2 sectors or 4KB x 2 for its test. Avoid this range.
All modules are configured to non-secure except:
1. TIMER0/1 hard-wired to secure and TIMER2/3 reserved for non-secure.
2. PDMA0 hard-wired to secure and PDMA1 reserved for non-secure.
3. RTC configured to secure and shared to non-secure through NSC.
4. CRYPTO configured to secure and shared to non-secure through NSC.
As per SAU documents, SAU is always present if the security extension is
available. The functionality differs if the SAU contains SAU regions.
If SAU regions are available it is configured with the macro __SAUREGION_PRESENT
ccli8
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Deepika