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stm32: Use new CONFIG_USB to determine if USB needs to be configured

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Introduce a CONFIG_USB build symbol that is set whenever
CONFIG_USBSERIAL or CONFIG_USBCANBUS is set.  Use that symbol during
setup so that the USB controller is properly initialized for both usb
serial and usb canbus bridge configurations.

This fixes the clock configuration for usb canbus bridge mode on
stm32f446.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-08-16 21:12:42 -04:00
parent a709ba43af
commit 6aec6efcc9
5 changed files with 14 additions and 12 deletions
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4
src/stm32/stm32h7.c
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@ -171,7 +171,7 @@ clock_setup(void)
;
// Configure HSI48 clock for USB
if (CONFIG_USBSERIAL) {
if (CONFIG_USB) {
SET_BIT(RCC->CR, RCC_CR_HSI48ON);
while((RCC->CR & RCC_CR_HSI48RDY) == 0);
SET_BIT(RCC->APB1HENR, RCC_APB1HENR_CRSEN);
@ -205,7 +205,7 @@ usb_reboot_for_dfu_bootloader(void)
static void
check_usb_dfu_bootloader(void)
{
if (!CONFIG_USBSERIAL || *(uint64_t*)USB_BOOT_FLAG_ADDR != USB_BOOT_FLAG)
if (!CONFIG_USB || *(uint64_t*)USB_BOOT_FLAG_ADDR != USB_BOOT_FLAG)
return;
*(uint64_t*)USB_BOOT_FLAG_ADDR = 0;
uint32_t *sysbase = (uint32_t*)0x1FF09800;