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microwatt/litedram/gen-src
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Benjamin Herrenschmidt 6aadad5a75 spi: Add booting from flash to litedram init 
It will look for an ELF binary at the flash offset specified
for the board (currently 0x300000 on Arty but that could be
changed).

Note: litedram is regenerated in order to rebuild the init code,
which was done using a newer version of litedram from LiteX.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
..
sdram_init spi: Add booting from flash to litedram init
arty.yml litedram: Remove old "VexRiscV" based initializations
dram-init-mem.vhdl litedram: Fix DRAM init mem using too many address bits
generate.py litedram: Remove old "VexRiscV" based initializations
nexys-video.yml litedram: Remove old "VexRiscV" based initializations
no-init-mem.vhdl litedram: Split the init memory from the main wrapper
sim.yml litedram: Remove old "VexRiscV" based initializations