Tool/software:
Hi I was adjusting my device tree to receive a GNSS communication through UART5, I've configured my device tree as shown bellow
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 87a999b6574c..155b1ee4474a 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -22,7 +22,7 @@ aliases {
serial1 = &mcu_uart0;
serial2 = &main_uart0;
serial3 = &main_uart1;
- serial4 = &main_uart5;
+ serial5 = &main_uart5;
mmc0 = &sdhci0;
mmc1 = &sdhci1;
mmc2 = &sdhci2;
@@ -297,11 +297,11 @@ reg_gnss_uart5: regulator-16{
regulator-name = "reg_gnss_uart5";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
+ gpios = <&main_gpio0 38 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
};
@@ -586,7 +586,7 @@ AM62PX_IOPAD(0x0194, PIN_INPUT, 2) /* (D25) MCASP0_AXR3.UART1_CTSn */
bootph-all;
};
- uart5_pins_default: uart5-default-pins {
+ main_uart5_pins_default: main_uart5-default-pins {
pinctrl-single,pins = <
AM62PX_IOPAD(0x01d8, PIN_OUTPUT, 1) /* (B23) MCAN0_TX.UART5_RXD */
AM62PX_IOPAD(0x01dc, PIN_INPUT, 1) /* (F20) MCAN0_RX.UART5_TXD */
@@ -1186,17 +1186,18 @@ bluetooth_8987 {
&main_uart5 {
pinctrl-names = "default";
- pinctrl-0 = <&uart5_pins_default>;
- interrupts-extended = <&gic500 GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>,
+ pinctrl-0 = <&main_uart5_pins_default>;
+ interrupts-extended = <&gic500 GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>,
<&main_pmx0 0x01d8>; /* (B23) MCAN0_TX.UART5_RXD */
interrupt-names = "irq", "wakeup";
- current-speed = <115200>;
+ current-speed = <9600>;
status = "okay";
gnss {
compatible = "u-blox,neo-m8";
- vcc = <®_gnss_uart5>;
- //current-speed = 115200;
+ vcc-supply = <®_gnss_uart5>;
+ //current-speed = <9600>;
+ status = "okay";
};
};
I start the module by insmod the driver, and then when i try to read the output it didn't work.
root@am62pxx-evm:/# insmod /lib/modules/6.6.32-ti-01287-g6de6e418c80e-dirty/kernel/drivers/gnss/gnss.ko
root@am62pxx-evm:/# insmod /lib/modules/6.6.32-ti-01287-g6de6e418c80e-dirty/kernel/drivers/gnss/gnss-serial.ko
root@am62pxx-evm:/# insmod /lib/modules/6.6.32-ti-01287-g6de6e418c80e-dirty/kernel/drivers/gnss/gnss-ubx.ko
root@am62pxx-evm:/# cat /dev/gnss0
^C
is there anything else that i need to do on the device tree?
Best Regards,
Sergio.