forked from mirrors/qmk_firmware
6bc870d899
* Refactor `bootloader_jump()` implementations * Fix tests? * Rename `atmel-samba` to `md-boot`
33 lines
1.2 KiB
C
33 lines
1.2 KiB
C
/* Copyright 2021 QMK
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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 "bootloader.h"
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#include <ch.h>
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/* Kiibohd Bootloader (MCHCK and Infinity KB) */
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#define SCB_AIRCR_VECTKEY_WRITEMAGIC 0x05FA0000
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const uint8_t sys_reset_to_loader_magic[] = "\xff\x00\x7fRESET TO LOADER\x7f\x00\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
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__attribute__((weak))
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void bootloader_jump(void) {
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void *volatile vbat = (void *)VBAT;
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__builtin_memcpy(vbat, (const void *)sys_reset_to_loader_magic, sizeof(sys_reset_to_loader_magic));
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// request reset
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SCB->AIRCR = SCB_AIRCR_VECTKEY_WRITEMAGIC | SCB_AIRCR_SYSRESETREQ_Msk;
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}
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