tools/litex_json2dts_linux: Add intial Rocket support (just to allow .dts generation as basis, now will need to be adapted).
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@ -36,6 +36,7 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
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"mor1kx" : "or1k",
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"marocchino" : "or1k",
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"vexriscv smp-linux" : "riscv",
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"rocketrv64[imac]" : "riscv",
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}
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default_initrd_start = {
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"or1k": 8*mB,
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@ -122,15 +123,15 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
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i_tlb_ways = d["constants"]["cpu_itlb_ways"])
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# CPU(s) Count.
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cpus = range(int(d["constants"]["config_cpu_count"]))
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ncpus = int(d["constants"].get("config_cpu_count", 1))
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# CPU(s) Topology.
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cpu_map = ""
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if int(d["constants"]["config_cpu_count"]) > 1:
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if ncpus > 1:
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cpu_map += """
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cpu-map {
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cluster0 {"""
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for cpu in cpus:
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for cpu in range(ncpus):
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cpu_map += """
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core{cpu} {{
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cpu = <&CPU{cpu}>;
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@ -145,7 +146,7 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
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#size-cells = <0>;
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timebase-frequency = <{sys_clk_freq}>;
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""".format(sys_clk_freq=d["constants"]["config_clock_frequency"])
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for cpu in cpus:
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for cpu in range(ncpus):
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dts += """
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CPU{cpu}: cpu@{cpu} {{
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device_type = "cpu";
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@ -284,7 +285,7 @@ def generate_dts(d, initrd_start=None, initrd_size=None, initrd=None, root_devic
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}};
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""".format(
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plic_base =d["memories"]["plic"]["base"],
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cpu_mapping =("\n" + " "*20).join(["&L{} 11 &L{} 9".format(cpu, cpu) for cpu in cpus]))
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cpu_mapping =("\n" + " "*20).join(["&L{} 11 &L{} 9".format(cpu, cpu) for cpu in range(ncpus)]))
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elif cpu_arch == "or1k":
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dts += """
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