occheung
/
artiq
forked from M-Labs/artiq
1
0
Fork 0
Code Pull Requests Activity

kasli: when using both GTP clocks, send REFCLK0 to PLL0 and REFCLK1 to PLL1

This commit is contained in:
Sebastien Bourdeauducq 2018-01-23 12:04:11 +08:00
parent d6157514c7
commit c7b148a704
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
artiq/gateware/targets/kasli.py
View File

@ -275,20 +275,24 @@ class Master(MiniSoC, AMPSoC):
i_CEB=0, i_CEB=0,
i_I=si5324_clkout.p, i_IB=si5324_clkout.n, i_I=si5324_clkout.p, i_IB=si5324_clkout.n,
o_O=si5324_clkout_buf) o_O=si5324_clkout_buf)
qpll_eth_settings = QPLLSettings( # Note precisely the rules Xilinx made up:
# refclksel=0b001 GTREFCLK0 selected
# refclksel=0b010 GTREFCLK1 selected
# but if only one clock used, then it must be 001.
qpll_drtio_settings = QPLLSettings(
refclksel=0b001, refclksel=0b001,
fbdiv=4, fbdiv=4,
fbdiv_45=5, fbdiv_45=5,
refclk_div=1) refclk_div=1)
qpll_drtio_settings = QPLLSettings( qpll_eth_settings = QPLLSettings(
refclksel=0b010, refclksel=0b010,
fbdiv=4, fbdiv=4,
fbdiv_45=5, fbdiv_45=5,
refclk_div=1) refclk_div=1)
qpll = QPLL(self.crg.clk125_buf, qpll_eth_settings, qpll = QPLL(si5324_clkout_buf, qpll_drtio_settings
si5324_clkout_buf, qpll_drtio_settings) self.crg.clk125_buf, qpll_eth_settings)
self.submodules += qpll self.submodules += qpll
self.ethphy_qpll_channel, self.drtio_qpll_channel = qpll.channels self.drtio_qpll_channel, self.ethphy_qpll_channel = qpll.channels
class Satellite(BaseSoC): class Satellite(BaseSoC):
@ -330,12 +334,12 @@ class Satellite(BaseSoC):
fbdiv=4, fbdiv=4,
fbdiv_45=5, fbdiv_45=5,
refclk_div=1) refclk_div=1)
qpll = QPLL(0, None, si5324_clkout_buf, qpll_drtio_settings) qpll = QPLL(si5324_clkout_buf, qpll_drtio_settings)
self.submodules += qpll self.submodules += qpll
self.comb += platform.request("sfp_ctl", 0).tx_disable.eq(0) self.comb += platform.request("sfp_ctl", 0).tx_disable.eq(0)
self.submodules.transceiver = gtp_7series.GTP( self.submodules.transceiver = gtp_7series.GTP(
qpll_channel=qpll.channels[1], qpll_channel=qpll.channels[0],
data_pads=[platform.request("sfp", 0)], data_pads=[platform.request("sfp", 0)],
sys_clk_freq=self.clk_freq, sys_clk_freq=self.clk_freq,
rtio_clk_freq=rtio_clk_freq) rtio_clk_freq=rtio_clk_freq)