Merge pull request #606 from litex-hub/ti60_f225_hyperram_update

ti60_f225_dev_kit: Update to new HyperRAM core with 2:1 ratio.
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enjoy-digital 2024-08-30 15:39:12 +02:00 committed by GitHub
commit 737e9938fc
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1 changed files with 15 additions and 5 deletions

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@ -27,8 +27,10 @@ from liteeth.phy.titaniumrgmii import LiteEthPHYRGMII
class _CRG(LiteXModule):
def __init__(self, platform, sys_clk_freq):
self.rst = Signal()
self.cd_sys = ClockDomain()
self.rst = Signal()
self.cd_sys = ClockDomain()
self.cd_sys2x = ClockDomain()
self.cd_sys2x_ps = ClockDomain()
# # #
@ -43,8 +45,9 @@ class _CRG(LiteXModule):
# (integer) of the reference clock. If all your system clocks do not fall within
# this range, you should dedicate one unused clock for CLKOUT0.
pll.create_clkout(None, 25e6)
pll.create_clkout(self.cd_sys, sys_clk_freq, with_reset=True)
pll.create_clkout(self.cd_sys, sys_clk_freq, phase=0, with_reset=True)
pll.create_clkout(self.cd_sys2x, 2 * sys_clk_freq, phase=0, with_reset=True)
pll.create_clkout(self.cd_sys2x_ps, 2 * sys_clk_freq, phase=315, with_reset=True)
# BaseSoC ------------------------------------------------------------------------------------------
@ -93,7 +96,14 @@ class BaseSoC(SoCCore):
self.add_config("L2_SIZE", hyperram_cache_size)
# HyperRAM Core.
self.hyperram = HyperRAM(platform.request("hyperram"), latency=7, latency_mode="variable", sys_clk_freq=sys_clk_freq)
self.hyperram = HyperRAM(
pads = platform.request("hyperram"),
latency = 7,
latency_mode = "variable",
sys_clk_freq = sys_clk_freq,
clk_ratio = "2:1",
dq_i_cd = "sys2x_ps",
)
self.comb += self.hyperram_cache.slave.connect(self.hyperram.bus)
# Ethernet / Etherbone ---------------------------------------------------------------------