mirror of
https://github.com/AsahiLinux/m1n1
synced 2024-12-18 17:53:10 +00:00
80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
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#!/usr/bin/env python3
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# SPDX-License-Identifier: MIT
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import sys, pathlib
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import serial
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sys.path.append(str(pathlib.Path(__file__).resolve().parents[1]))
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import argparse, pathlib
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from m1n1 import adt
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parser = argparse.ArgumentParser(description='Convert ADT PMGR nodes to Device Tree format')
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parser.add_argument('input', type=pathlib.Path)
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args = parser.parse_args()
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adt_data = args.input.read_bytes()
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dt = adt.load_adt(adt_data)
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pmgr = dt["/arm-io/pmgr"]
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dev_by_id = {dev.id: dev for dev in pmgr.devices}
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blocks = {}
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maxaddr = {}
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for i, dev in enumerate(pmgr.devices):
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if dev.flags.no_ps:
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continue
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ps = pmgr.ps_regs[dev.psreg]
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block = pmgr.get_reg(ps.reg)
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blocks.setdefault(block, []).append(dev)
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offset = ps.offset + dev.psidx * 8
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maxaddr[block[0]] = max(maxaddr.get(block[0], 0), offset)
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pmgr_compat = pmgr.compatible[0].split(",")[1]
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compatible = f'"apple,{pmgr_compat}-pmgr", "apple,pmgr", "syscon", "simple-mfd"'
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ps_compatible = f'"apple,{pmgr_compat}-pmgr-pwrstate", "apple,pmgr-pwrstate"'
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for i, ((base, size), devices) in enumerate(sorted(blocks.items())):
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size = min(size, (maxaddr[base] + 0x3fff) & ~0x3fff)
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print(f"pmgr{i}: power-management@{base:x} {{")
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print(f"\tcompatible = {compatible};")
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print( "\t#address-cells = <1>;")
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print( "\t#size-cells = <1>;")
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print()
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print(f"\treg = <{base >> 32:#x} {base & 0xffffffff:#x} 0 {size:#x}>;")
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print( "};")
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print()
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for i, ((base, size), devices) in enumerate(sorted(blocks.items())):
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print(f"&pmgr{i} {{")
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for dev in sorted(devices, key=lambda d: pmgr.ps_regs[d.psreg].offset + dev.psidx * 8):
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if dev.flags.no_ps:
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continue
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ps = pmgr.ps_regs[dev.psreg]
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offset = ps.offset + dev.psidx * 8
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addr = pmgr.get_reg(ps.reg)[0] + offset
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assert base <= addr <= (base + size)
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print()
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print(f"\tps_{dev.name.lower()}: power-controller@{offset:x} {{")
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print(f"\t\tcompatible = {ps_compatible};")
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print(f"\t\treg = <{offset:#x} 4>;")
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print( "\t\t#power-domain-cells = <0>;")
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print( "\t\t#reset-cells = <0>;")
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print(f'\t\tlabel = "{dev.name.lower()}";')
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if dev.flags.critical:
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print("\t\tapple,always-on;")
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if any(dev.parents):
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domains = [f"<&ps_{dev_by_id[idx].name.lower()}>" for idx in dev.parents if idx]
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print(f"\t\tpower-domains = {', '.join(domains)};")
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print( "\t};")
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print( "};")
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print()
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