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exo2: implement the first half of SmcCpuSuspend

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This commit is contained in:
Michael Scire 2020-06-07 19:16:48 -07:00 • committed by SciresM
parent e1835d9ba2
commit 0202a95832
11 changed files with 175 additions and 5 deletions
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26
libraries/libexosphere/source/pmc/pmc_api.cpp
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@ -224,6 +224,32 @@ namespace ams::pmc {
LockSecureRegister(SecureRegister_Srk);
}
void EnableWakeEventDetection() {
/* Get the address. */
const uintptr_t address = g_register_address;
/* Wait 75us, then enable event detection, then wait another 75us. */
util::WaitMicroSeconds(75);
reg::ReadWrite(address + APBDEV_PMC_CNTRL2, PMC_REG_BITS_ENUM(CNTRL2_WAKE_DET_EN, ENABLE));
util::WaitMicroSeconds(75);
/* Enable all wake events. */
reg::Write(address + APBDEV_PMC_WAKE_STATUS, 0xFFFFFFFFu);
reg::Write(address + APBDEV_PMC_WAKE2_STATUS, 0xFFFFFFFFu);
util::WaitMicroSeconds(75);
}
void ConfigureForSc7Entry() {
/* Get the address. */
const uintptr_t address = g_register_address;
/* Configure the bootrom to perform a warmboot. */
reg::Write(address + APBDEV_PMC_SCRATCH0, 0x1);
/* Enable the TSC multiplier. */
reg::ReadWrite(address + APBDEV_PMC_DPD_ENABLE, PMC_REG_BITS_ENUM(DPD_ENABLE_TSC_MULT_EN, ENABLE));
}
void LockSecureRegister(SecureRegister reg) {
/* Get the address. */
const uintptr_t address = g_register_address;