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Atmosphere/exosphere/program/rebootstub/source/rebootstub_power_off.cpp
2020-11-14 12:19:01 -08:00

63 lines
1.8 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
namespace ams::rebootstub {
NORETURN void Halt() {
while (true) {
reg::Write(secmon::MemoryRegionPhysicalDeviceFlowController.GetAddress() + FLOW_CTLR_HALT_COP_EVENTS, FLOW_REG_BITS_ENUM(HALT_COP_EVENTS_MODE, FLOW_MODE_STOP),
FLOW_REG_BITS_ENUM(HALT_COP_EVENTS_JTAG, ENABLED));
}
__builtin_unreachable();
}
NORETURN void PowerOff() {
/* Ensure that i2c5 is usable. */
clkrst::EnableI2c5Clock();
/* Initialize i2c5. */
i2c::Initialize(i2c::Port_5);
/* Stop rtc alarms. */
rtc::StopAlarm();
/* Perform a pmic power off. */
pmic::PowerOff();
/* Halt the bpmp. */
Halt();
/* This can never be reached. */
__builtin_unreachable();
}
}
namespace ams::diag {
void AbortImpl() {
/* Halt the bpmp. */
rebootstub::Halt();
/* This can never be reached. */
__builtin_unreachable();
}
#include <exosphere/diag/diag_detailed_assertion_impl.inc>
}