Pass RAM size from VC4 (in sdram.c) to ARM (via mailboxes or legacy comm channels)

Question

Pass RAM size from VC4 (in sdram.c) to ARM (via mailboxes or legacy comm channels)

alyssarosenzweig opened this issue 8 years ago · comments

Alyssa Rosenzweig commented 8 years ago

Kristina · Answer 1 · Fri Jan 06 2017 17:36:21 GMT+0800 (China Standard Time)

Well since legacy channels are gone, I guess MBOX or writing to some high or low address is the only way now.

Alyssa Rosenzweig · Answer 2 · Sat Jan 07 2017 02:22:45 GMT+0800 (China Standard Time)

We _do_ have mailbox support on both ARM and the VC4, no?

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On Fri, Jan 06, 2017 at 01:36:22AM -0800, Kristina Brooks wrote: Well since legacy channels are gone, I guess MBOX or writing to some high or low address is the only way now. -- You are receiving this because you authored the thread. Reply to this email directly or view it on GitHub: #20 (comment)

Kristina · Answer 3 · Sun Jan 08 2017 05:03:18 GMT+0800 (China Standard Time)

Passed as a structure at a fixed memory location to ARM.