mirror of
https://github.com/UpsilonNumworks/Upsilon.git
synced 2026-01-18 16:27:34 +01:00
851ec2ab69
* [bootloader] Fix exam mode on Epsilon 19 * [bootloader] Fix comment indentation * [bootloader] Restore comment indentation (even if GitHub tell that it isn't indented properly) * [bootloader] Turn tabulations into spaces * [bootloader] Mark Epsilon 19 as "safe to boot" * [bootloader] Fix Epsilon 20 boot * [bootloader] Chang version to 1.0.2
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
#include <bootloader/slots/slot.h>
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#include <ion/src/device/shared/drivers/board.h>
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#include <ion/src/device/shared/drivers/flash.h>
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#include <ion/src/device/shared/drivers/external_flash.h>
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#include <bootloader/boot.h>
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extern "C" void jump_to_firmware(const uint32_t* stackPtr, const void(*startPtr)(void));
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namespace Bootloader {
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const Slot Slot::A() {
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return Slot(0x90000000);
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}
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const Slot Slot::B() {
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return Slot(0x90400000);
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}
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const Slot Slot::Khi() {
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return Slot(0x90180000);
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}
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const KernelHeader* Slot::kernelHeader() const {
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return m_kernelHeader;
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}
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const UserlandHeader* Slot::userlandHeader() const {
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if (m_userlandHeader->isValid()) {
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return m_userlandHeader;
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} else if (m_userland2Header->isValid()) {
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return m_userland2Header;
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} else {
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return m_userlandHeader;
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}
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}
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[[ noreturn ]] void Slot::boot() const {
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if (m_address == 0x90000000) {
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// If we are booting from slot A, we need to lock the slot B
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Ion::Device::Flash::LockSlotB();
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} else {
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// If we are booting from slot B, we need to lock the slot A (and Khi)
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Ion::Device::Flash::LockSlotA();
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}
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// Erase the bootloader integrated in slots in Epsilon 20
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if (m_userland2Header->isValid()) {
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if (m_address == 0x90000000) {
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// Check if bootloader is present in slot A
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if (*(uint32_t*)0x90010000 != 0xFFFFFFFF) {
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// Erase bootloader in slot A
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Ion::Device::ExternalFlash::EraseSector(9);
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}
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}
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else if (m_address == 0x90400000) {
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// Check if bootloader is present in slot B
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if (*(uint32_t*)0x90410000 != 0xFFFFFFFF) {
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// Erase bootloader in slot B
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Ion::Device::ExternalFlash::EraseSector(73);
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}
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}
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}
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// Configure the MPU for the booted firmware
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Ion::Device::Board::bootloaderMPU();
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// Jump
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jump_to_firmware(kernelHeader()->stackPointer(), kernelHeader()->startPointer());
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for(;;);
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}
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}
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