On Keystone2 SoC, Our DDR3 of size 2GB is getting mapped in linux as 880000000 - 8FFFFFFFF - System RAM.
When I allocate 1 MB Buffer using kmalloc , I get the address as 0xebc0_0000,
When I convert virtual address 0xebc0_0000 into into physical address, it is giving 0x2bc0_0000.
I want to receive data from my PCIe FPGA Device into this Buffer 0x2bc0_0000 so I need to tell the FPGA that DDR address for receiving data is 0x2bc0_0000.
But it's not working. I feel my actual physical address 0x2bc0_0000 is not correct that's I am not getting data at this address.
Can you please tell me if my physical address is correct or not ? If not what is the correct way of calculating the phy address which can be used by FPGA to write data.
Thanking you in advance.
Vijay
