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stm32: Move usb_request_bootloader() to chip specific code

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-09-18 10:45:39 -04:00
parent fce98c5519
commit 8cb3d09484
4 changed files with 24 additions and 20 deletions
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17
src/stm32/stm32f1.c
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@ -5,6 +5,8 @@
// This file may be distributed under the terms of the GNU GPLv3 license.
#include "autoconf.h" // CONFIG_CLOCK_REF_8M
#include "board/irq.h" // irq_disable
#include "board/usb_cdc.h" // usb_request_bootloader
#include "internal.h" // enable_pclock
#define FREQ_PERIPH (CONFIG_CLOCK_FREQ / 2)
@ -104,6 +106,21 @@ gpio_peripheral(uint32_t gpio, uint32_t mode, int pullup)
AFIO->MAPR = AFIO_MAPR_SWJ_CFG_DISABLE;
}
// Handle USB reboot requests
void
usb_request_bootloader(void)
{
if (!CONFIG_STM32_FLASH_START_2000)
return;
// Enter "stm32duino" bootloader
irq_disable();
RCC->APB1ENR |= RCC_APB1ENR_PWREN | RCC_APB1ENR_BKPEN;
PWR->CR |= PWR_CR_DBP;
BKP->DR10 = 0x01;
PWR->CR &=~ PWR_CR_DBP;
NVIC_SystemReset();
}
// Main clock setup called at chip startup
void
clock_setup(void)