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arm64: dts: ti: k3-am654-idk: Add Support for MCAN

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There are two MCAN instances present on the am65x SoC [0].
Since there are two CAN transceivers on the IDK application
board for AM654 EVM [1], enable m_can0 and m_can1, add the
two corresponding CAN transceiver nodes, and set a maximum
data rate of 5 Mbps.

[0] https://www.ti.com/lit/ds/symlink/am6548.pdf
[1] https://www.ti.com/lit/zip/sprr382

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Signed-off-by: Judith Mendez <jm@ti.com>
Link: https://lore.kernel.org/r/20240821205414.1706661-1-jm@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
This commit is contained in:
Faiz Abbas 2024-08-21 15:54:14 -05:00 committed by Nishanth Menon
parent 73f7ec3855
commit f0f961ab9c
1 changed files with 61 additions and 0 deletions
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61
arch/arm64/boot/dts/ti/k3-am654-idk.dtso
View File

@ -8,6 +8,7 @@
/dts-v1/;
/plugin/;
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/net/ti-dp83867.h>
#include "k3-pinctrl.h"
@ -154,6 +155,24 @@ icssg1_emac1: port@1 {
};
};
};
transceiver1: can-phy0 {
compatible = "ti,tcan1042";
#phy-cells = <0>;
max-bitrate = <5000000>;
pinctrl-names = "default";
pinctrl-0 = <&mcan0_gpio_pins_default>;
standby-gpios = <&main_gpio1 47 GPIO_ACTIVE_LOW>;
};
transceiver2: can-phy1 {
compatible = "ti,tcan1042";
#phy-cells = <0>;
max-bitrate = <5000000>;
pinctrl-names = "default";
pinctrl-0 = <&mcan1_gpio_pins_default>;
standby-gpios = <&main_gpio1 67 GPIO_ACTIVE_LOW>;
};
};
&main_pmx0 {
@ -243,6 +262,34 @@ icssg1_iep0_pins_default: icssg1-iep0-default-pins {
AM65X_IOPAD(0x012c, PIN_INPUT, 2) /* (AG26) PRG1_PRU0_GPO19.PRG1_IEP0_EDC_SYNC_OUT0 */
>;
};
mcan0_gpio_pins_default: mcan0-gpio-default-pins {
pinctrl-single,pins = <
AM65X_IOPAD(0x023c, PIN_INPUT, 7) /* (V25) PRG0_PRU0_GPIO18:GPIO1_47 */
>;
};
mcan1_gpio_pins_default: mcan1-gpio-default-pins {
pinctrl-single,pins = <
AM65X_IOPAD(0x028c, PIN_INPUT, 7) /* (Y26) PRG0_PRU1_GPIO18.GPIO1_67 */
>;
};
};
&wkup_pmx0 {
mcu_mcan0_pins_default: mcu-mcan0-default-pins {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x00ac, PIN_INPUT_PULLUP, 0) /* (W2) MCU_MCAN0_RX */
AM65X_WKUP_IOPAD(0x00a8, PIN_OUTPUT_PULLUP, 0) /* (W1) MCU_MCAN0_TX */
>;
};
mcu_mcan1_pins_default: mcu-mcan1-default-pins {
pinctrl-single,pins = <
AM65X_WKUP_IOPAD(0x00c4, PIN_INPUT_PULLUP, 1) /* (AD3) WKUP_GPIO0_5.MCU_MCAN1_RX */
AM65X_WKUP_IOPAD(0x00c0, PIN_OUTPUT_PULLUP, 1) /* (AC3) WKUP_GPIO0_4.MCU_MCAN1_TX */
>;
};
};
&icssg0_mdio {
@ -294,3 +341,17 @@ &icssg1_iep0 {
pinctrl-names = "default";
pinctrl-0 = <&icssg1_iep0_pins_default>;
};
&m_can0 {
pinctrl-names = "default";
pinctrl-0 = <&mcu_mcan0_pins_default>;
phys = <&transceiver1>;
status = "okay";
};
&m_can1 {
pinctrl-names = "default";
pinctrl-0 = <&mcu_mcan1_pins_default>;
phys = <&transceiver2>;
status = "okay";
};