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3 Commits (fdc44a71a059435d8550535958660949dfecc7a8)

Author SHA1 Message Date
Joel Stanley fdc44a71a0 antmicro-artix-dc-scm: Update DRAM properties 
Most pins are set to SSTL15, but litex generates SSTL135.

This should silence a vivado warning.

Signed-off-by: Joel Stanley <joel@jms.id.au>
 2 years ago
Paul Mackerras 9b184ff569 antmicro-artix-dc-scm: Add DRAM support 
This uses the exact same gateware as the nexys video, since the DRAM
connection is identical to the nexys video down to the pin assignments
on the FPGA.  The only minor difference is that the DRAM chip on the
dc-scm is a MT41K256M16TW vs. a ...HA part on the nexys video.

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
[joel: rebase and tweaks]
Signed-off-by: Joel Stanley <joel@jms.id.au>
 2 years ago
Michael Neuling d92af779eb Add Antmicro Artix DC SCM hello world support 
works with:
 fusesoc build --target=antmicro-artix-dc-scm microwatt --ram_init_file=../hello_world/hello_world.hex

Signed-off-by: Michael Neuling <mikey@neuling.org>
[joel: Fixes and updates]
Signed-off-by: Joel Stanley <joel@jms.id.au>
 2 years ago