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https://github.com/Atmosphere-NX/Atmosphere
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boot: implement SetInitialClockConfiguration
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commit
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4 changed files with 34 additions and 6 deletions
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@ -0,0 +1,26 @@
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/*
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* Copyright (c) 2018-2019 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "boot_functions.hpp"
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#include "boot_registers_pmc.hpp"
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static constexpr u32 PmcClkOutCntrl = PmcBase + APBDEV_PMC_CLK_OUT_CNTRL;
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static constexpr u32 InitialClockOutMask = 0xC4C4;
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void Boot::SetInitialClockConfiguration() {
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/* Write mask to APBDEV_PMC_PWR_DET, then clear APBDEV_PMC_PWR_DET_VAL. */
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WritePmcRegister(PmcClkOutCntrl, InitialClockOutMask, InitialClockOutMask);
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}
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@ -31,6 +31,7 @@ class Boot {
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static void CheckClock();
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static void DetectBootReason();
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static void ShowSplashScreen();
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static void SetInitialClockConfiguration();
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/* Power utilities. */
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static void RebootSystem();
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@ -107,9 +107,7 @@ int main(int argc, char **argv)
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consoleDebugInit(debugDevice_SVC);
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/* TODO: Implement the boot sysmodule -- boot_old to be broadly rewritten. */
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/* TODO: Explicitly: */
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/* Change voltage from 3.3v to 1.8v for select devices. */
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Boot::ChangeGpioVoltageTo1_8v();
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@ -129,12 +127,14 @@ int main(int argc, char **argv)
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/* TODO: SetInitialWakePinConfiguration(); */
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/* TODO: SetInitialClockConfiguration(); */
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Boot::SetInitialClockConfiguration();
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/* TODO: CheckAndRepairBootImages(); */
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/* TODO: NotifyBootFinished(); */
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/* Tell PM to start boot2. */
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if (R_FAILED(pmshellNotifyBootFinished())) {
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std::abort();
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}
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return 0;
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}
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@ -39,6 +39,7 @@ static constexpr u32 PMC_CRYPTO_OP_SE_DISABLE = 1;
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static constexpr size_t APBDEV_PMC_SCRATCH33 = 0x120;
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static constexpr size_t APBDEV_PMC_SCRATCH40 = 0x13C;
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static constexpr size_t APBDEV_PMC_OSC_EDPD_OVER = 0x1A4;
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static constexpr size_t APBDEV_PMC_CLK_OUT_CNTRL = 0x1A8;
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static constexpr size_t APBDEV_PMC_RST_STATUS = 0x1B4;
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static constexpr size_t APBDEV_PMC_IO_DPD_REQ = 0x1B8;
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static constexpr size_t APBDEV_PMC_IO_DPD2_REQ = 0x1C0;
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