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terasic_sockit: fix: make video clock also optional as video terminal is optional

This commit is contained in:
Hans Baier 2021-04-27 08:52:11 +07:00
parent 5bfeb999e4
commit 694608688d
1 changed files with 8 additions and 4 deletions
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8
litex_boards/targets/terasic_sockit.py
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@ -67,10 +67,11 @@ class W9825G6KH6(SDRModule):
# CRG ---------------------------------------------------------------------------------------------- # CRG ----------------------------------------------------------------------------------------------
class _CRG(Module): class _CRG(Module):
def __init__(self, platform, sys_clk_freq, with_sdram=False, sdram_rate="1:2"): def __init__(self, platform, sys_clk_freq, with_sdram=False, sdram_rate="1:2", with_video_terminal=False):
self.sdram_rate = sdram_rate self.sdram_rate = sdram_rate
self.rst = Signal() self.rst = Signal()
self.clock_domains.cd_sys = ClockDomain() self.clock_domains.cd_sys = ClockDomain()
if with_video_terminal:
self.clock_domains.cd_vga = ClockDomain(reset_less=True) self.clock_domains.cd_vga = ClockDomain(reset_less=True)
if with_sdram: if with_sdram:
if sdram_rate == "1:2": if sdram_rate == "1:2":
@ -87,7 +88,10 @@ class _CRG(Module):
self.comb += pll.reset.eq(self.rst) self.comb += pll.reset.eq(self.rst)
pll.register_clkin(clk50, 50e6) pll.register_clkin(clk50, 50e6)
pll.create_clkout(self.cd_sys, sys_clk_freq) pll.create_clkout(self.cd_sys, sys_clk_freq)
if with_video_terminal:
pll.create_clkout(self.cd_vga, 65e6) pll.create_clkout(self.cd_vga, 65e6)
if with_sdram: if with_sdram:
if sdram_rate == "1:2": if sdram_rate == "1:2":
pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq) pll.create_clkout(self.cd_sys2x, 2*sys_clk_freq)
@ -117,7 +121,7 @@ class BaseSoC(SoCCore):
**kwargs) **kwargs)
# CRG -------------------------------------------------------------------------------------- # CRG --------------------------------------------------------------------------------------
self.submodules.crg = _CRG(platform, sys_clk_freq, with_sdram=mister_sdram != None, sdram_rate=sdram_rate) self.submodules.crg = _CRG(platform, sys_clk_freq, with_sdram=mister_sdram != None, sdram_rate=sdram_rate, with_video_terminal=with_video_terminal)
# SDR SDRAM -------------------------------------------------------------------------------- # SDR SDRAM --------------------------------------------------------------------------------
if mister_sdram is not None: if mister_sdram is not None: