# Copyright 2019 Google, Inc.
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from m5.objects.FastModelGIC import FastModelGIC, SCFastModelGIC
from m5.objects.Gic import ArmSPI
from m5.objects.RealView import VExpress_GEM5_Base, HDLcd
from m5.objects.SubSystem import SubSystem


class VExpressFastmodel(VExpress_GEM5_Base):
    gic = FastModelGIC(
        sc_gic=SCFastModelGIC(
            its_count=1,
            its0_base=0x2E010000,
            reg_base=0x2C000000,
            reg_base_per_redistributor="0.0.0.0=0x2c010000",
            spi_count=988,
        )
    )

    hdlcd = HDLcd(
        pxl_clk=VExpress_GEM5_Base.dcc.osc_pxl,
        pio_addr=0x2B000000,
        interrupt=ArmSPI(num=95),
    )

    # Remove original timer to prevent from possible conflict with Fastmodel
    # timer.
    generic_timer = SubSystem()
    generic_timer_mem = SubSystem()
    sys_counter = SubSystem()
    el2_watchdog = SubSystem()

    def _on_chip_devices(self):
        return [
            self.gic,
            self.hdlcd,
            self.system_watchdog,
            self.trusted_watchdog,
        ]

    def setupBootLoader(self, cur_sys, loc, boot_loader=None):
        if boot_loader is None:
            boot_loader = [loc("boot_v2.arm64")]
        super().setupBootLoader(cur_sys, boot_loader)