Direct access to L2 cache on vybrid vf61

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Direct access to L2 cache on vybrid vf61

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Contributor I

Hello!

RM says, that L2 cache mapped at address 0x3f48_0000. Can I access directly using this address?

Using md in uboot is no luck :smileysad:

Uboot # md 0x3f480000
3f480000:data abort
pc : [<8ff7e9f2>] lr : [<8ff7e9d7>]
reloc pc : [<3f4409f2>] lr : [<3f4409d7>]
sp : 8fb05cf8 ip : 3f480000 fp : 00000008
r10: 3f480000 r9 : 8fb05ee8 r8 : 3f480000
r7 : 00000004 r6 : 00000040 r5 : 00000004 r4 : 00000004
r3 : 00000000 r2 : 80000000 r1 : 8fb05d0c r0 : 00000009
Flags: nZCv IRQs off FIQs off Mode SVC_32
Resetting CPU ...

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Senior Contributor IV

Do you mean Table 4-1 Device Memory Map and description for 0x3f480000 - "OCRAM – gfxRAM1 / L2 cache" ? I think it means that this piece of memory is available only on devices without L2 cache. I think it is not possible to access L2 cache directly.

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