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drivers: can: Implement Bosch M_CAN driver

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Implementation of the Bosch M_CAN IP driver.
This driver is just the base for a specific SoC implementation.

Signed-off-by: Alexander Wachter <alexander@wachter.cloud>
This commit is contained in:
Alexander Wachter 2021-02-11 20:07:04 +01:00 • committed by Kumar Gala
commit 1c50ef6c43
12 changed files with 2846 additions and 2 deletions
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24
drivers/can/can_stm32fd.c Normal file
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/*
* Copyright (c) 2020 Alexander Wachter
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <drivers/can.h>
u32_t can_mcan_get_core_clock(struct device *dev)
{
u32_t core_clock = LL_RCC_GetFDCANClockFreq(LL_RCC_FDCAN_CLKSOURCE);
u32_t dbrp, nbrp;
#if CONFIG_CAN_CKDIV != 0
core_clock /= CONFIG_CAN_CKDIV * 2;
#endif
__weak void can_mcan_clock_enable()
{
LL_RCC_SetFDCANClockSource(LL_RCC_FDCAN_CLKSOURCE_PCLK1);
__HAL_RCC_FDCAN_CLK_ENABLE();
FDCAN_CONFIG->CKDIV = CONFIG_CAN_CKDIV;
}