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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(
            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()

    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(VExpressFastmodel, self).setupBootLoader(
                cur_sys, boot_loader)
