AM6442: GPMC memory address

Tool/software:

Hello,

May I have question about GPMC?

Q1

I found GPMC0_DATA is 0x0 5000 0000 to 0x0 57FF FFFF in Table 2-1. MAIN Domain Memory Map.

But in Table 12-3241. GPMC Memory Map, GPMC0_DATA is 0x00 2000 0000 to 0x00 27FF FFFF.

Which is correct?

In AM62 series, I saw E2E thread that say correct GPMC0_DATA is 0x0 5000 0000 to 0x0 57FF FFFF, So I think Table 12-3241. GPMC Memory Map is Typo.

Q2

I found max size of each memory.

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1349234/faq-am24x-am64x-am62x-what-are-the-maximum-sizes-of-nand-or-nor-or-psram-memories-that-can-be-connected-to-gpmc-for-the-am24x-am64x-am62x

Why NAND size is NA? and S.NO1 is up to 256MB??

I believe AM64's GPMC address make limit, up to 128MB.

Q3

Just make sure.

Total size of eacs GPMC chip select is limit up to 128MB?

for example 

 CS0->64MB, CS1->64MB, CS2/CS3->not config => AM64 can read ALL memory of CS0 and CS1

 CS0->128MB, CS1->64MB, CS2/CS3->not config => AM64 can read ALL of CS0 but CS1 can't readable

 CS0->256MB, CS1/CS2/CS30->not config => AM64 can read lower 128MB of CS0

Is all correct?

Best regards,

GR