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platforms: fomu: add spiflash4x definition 

Fomu Hacker supports dual spi, so add a "spiflash4x" definition.
The litex spi_flash module will run this flash in dual mode, because the
`dq` array is only two signals wide.

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2019-11-24 21:56:57 +08:00
parent 45b847b466
commit 0da263fa75
1 changed files with 7 additions and 1 deletions
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8
litex_boards/partner/platforms/fomu_hacker.py
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@ -35,10 +35,16 @@ _io = [
("spiflash", 0, ("spiflash", 0,
Subsignal("cs_n", Pins("C1"), IOStandard("LVCMOS33")), Subsignal("cs_n", Pins("C1"), IOStandard("LVCMOS33")),
Subsignal("clk", Pins("D1"), IOStandard("LVCMOS33")), Subsignal("clk", Pins("D1"), IOStandard("LVCMOS33")),
Subsignal("mosi", Pins("F1"), IOStandard("LVCMOS33")), Subsignal("mosi", Pins("F1"), IOStandard("LVCMOS33")),
Subsignal("miso", Pins("E1"), IOStandard("LVCMOS33")), Subsignal("miso", Pins("E1"), IOStandard("LVCMOS33")),
), ),
("spiflash4x", 0,
Subsignal("cs_n", Pins("C1"), IOStandard("LVCMOS33")),
Subsignal("clk", Pins("D1"), IOStandard("LVCMOS33")),
Subsignal("dq", Pins("F1 E1"), IOStandard("LVCMOS33")),
),
] ]
# Connectors --------------------------------------------------------------------------------------- # Connectors ---------------------------------------------------------------------------------------