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Author SHA1 Message Date
Atish PatraandAnup Patel 4c374511fd platform: openpiton: Read the device configurations from device tree 
OpenPiton is designed to run on different FPGAs with different
configurations. Use the fdt parser to retrieve the required values
from device tree instead of using fixed values.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Tested-by: Jonathan Balkind <jbalkind@cs.princeton.edu>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
 2020-03-24 13:33:39 +05:30
Atish PatraandAnup Patel 040e4e2ec2 lib: utils: Move fdt fixup helper routines to a different file 
FDT helper file contain both fdt fixup and parsing functions.

Split the fixup related functions to a separate file for a better code
organization.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
 2020-03-24 13:30:32 +05:30
Atish PatraandAnup Patel fb84879e66 platform: Add OpenPiton platform support 
OpenPiton is a research platform from Princeton University [1].

"OpenPiton is the world's first open source, general purpose,
multithreaded manycore processor. It is a tiled manycore
framework scalable from one to 1/2 billion cores."

Add OpenSBI support for OpenPiton. As it is based on ariane core,
it reuses the platform code from arine project.

[1]. https://github.com/PrincetonUniversity/openpiton

Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup.patel@wdc.com>
 2020-03-24 13:18:38 +05:30