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Add CAN nodes for STM32H7 series #41112

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Add CAN nodes for STM32H7 series #41112

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8 changes: 8 additions & 0 deletions drivers/can/can_stm32fd.c
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Original file line number Diff line number Diff line change
Expand Up @@ -49,10 +49,18 @@ int can_stm32fd_get_max_filters(const struct device *dev, enum can_ide id_type)

void can_stm32fd_clock_enable(void)
{
/* There are different naming for clock source RCC_CCIPR_FDCANSEL_1
* in files stm32h7xx_ll_rcc.h and stm32g4xx_ll_rcc.h
*/
#if defined(LL_RCC_FDCAN_CLKSOURCE_PLL2Q)
LL_RCC_SetFDCANClockSource(LL_RCC_FDCAN_CLKSOURCE_PLL2Q);
__HAL_RCC_FDCAN_CLK_ENABLE();
#else
LL_RCC_SetFDCANClockSource(LL_RCC_FDCAN_CLKSOURCE_PCLK1);
__HAL_RCC_FDCAN_CLK_ENABLE();

FDCAN_CONFIG->CKDIV = CONFIG_CAN_STM32_CLOCK_DIVISOR >> 1;
#endif
}

void can_stm32fd_register_state_change_isr(const struct device *dev,
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36 changes: 36 additions & 0 deletions dts/arm/st/h7/stm32h7.dtsi
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Expand Up @@ -444,6 +444,42 @@
label = "SPI_6";
};

can {
compatible = "bosch,m-can-base";
#address-cells = <1>;
#size-cells = <1>;
std-filter-elements = <28>;
ext-filter-elements = <8>;
rx-fifo0-elements = <3>;
rx-fifo1-elements = <3>;
rx-buffer-elements = <0>;
tx-buffer-elements = <3>;

can1: can@40006400 {
compatible = "st,stm32-fdcan";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40006400 0x400>, <0x4000A400 0x350>;
reg-names = "m_can", "message_ram";
interrupts = <21 0>, <22 0>;
interrupt-names = "LINE_0", "LINE_1";
status = "disabled";
label = "CAN_1";
};

can2: can@40006800 {
compatible = "st,stm32-fdcan";
#address-cells = <1>;
#size-cells = <0>;
reg = <0x40006800 0x400>, <0x4000A750 0x350>;
reg-names = "m_can", "message_ram";
interrupts = <86 0>, <87 0>;
interrupt-names = "LINE_0", "LINE_1";
status = "disabled";
label = "CAN_2";
};
};

timers1: timers@40010000 {
compatible = "st,stm32-timers";
reg = <0x40010000 0x400>;
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