ASPEED AST2700 SOC is a 64 bits quad core CPUs (Cortex-a35)
And the base address of dram is "0x4 00000000" which
is 64bits address.
It have "TXDES 2" and "RXDES 2" to save the high part
physical address of packet buffer.
Ex: TX packet buffer address [34:0]
The "TXDES 2" bits [18:16] which corresponds the bits [34:32]
of the 64 bits address of the TX packet buffer address
and "TXDES 3" bits [31:0] which corresponds the bits [31:0]
of the 64 bits address of the TX packet buffer address.
Update TX and RX packet buffers address type to
64 bits for dram 64 bits address DMA support.
Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
2095468d2c