reServer AGX Orin: add uart configure

Seeed-Studio · Mar 20, 2024 · 57a7670 · 57a7670
1 parent 3294cc4
commit 57a7670
Showing 1 changed file with 69 additions and 0 deletions.
diff --git a/overlays/agx-orin/agx-orin-seeed-reserver.dts b/overlays/agx-orin/agx-orin-seeed-reserver.dts
@@ -296,7 +296,58 @@
  };
  };
  };
+ // Because the following code is applied, the following command cannot be used to apply overlay.
+ // sudo /opt/nvidia/jetson-io/config-by-hardware.py -n "Jetson Seeed AGX Orin reServer Overlay"
+ // But fdtoverlay can be used
+ //sudo fdtoverlay -i /boot/kernel_tegra234-p3701-0005-p3737-0000.dtb -o /boot/kernel_tegra234-p3701-0005-p3737-0000-user-custom.dtb /boot/agx-orin-seeed-reserver.dtbo
+ //
+ fragment@15{
+ target = <&pinmux>; 
+ __overlay__ {
+ pinctrl-names = "default";
+ pinctrl-0 = <&jetson_io_pinmux>;
+ jetson_io_pinmux: exp-header-pinmux {
+ uart5_tx_py5 {
+ nvidia,pins = "uart5_tx_py5";
+ nvidia,function = "uarte";
+ nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+ nvidia,tristate = <TEGRA_PIN_DISABLE>;
+ nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+ nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+ };
+
+ uart5_rx_py6 {
+ nvidia,pins = "uart5_rx_py6";
+ nvidia,function = "uarte";
+ nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+ nvidia,tristate = <TEGRA_PIN_ENABLE>;
+ nvidia,enable-input = <TEGRA_PIN_ENABLE>;
+ nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+ };
+
+ uart5_rts_py7 {
+ nvidia,pins = "uart5_rts_py7";
+ nvidia,function = "uarte";
+ nvidia,pull = <TEGRA_PIN_PULL_UP>;
+ nvidia,tristate = <TEGRA_PIN_DISABLE>;
+ nvidia,enable-input = <TEGRA_PIN_DISABLE>;
+ nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+ };
+
+ uart5_cts_pz0 {
+ nvidia,pins = "uart5_cts_pz0";
+ nvidia,function = "uarte";
+ nvidia,pull = <TEGRA_PIN_PULL_NONE>;
+ nvidia,tristate = <TEGRA_PIN_ENABLE>;
+ nvidia,enable-input = <TEGRA_PIN_ENABLE>;
+ nvidia,lpdr = <TEGRA_PIN_DISABLE>;
+ };
+ };
+ };
+ };
+
  //rs485 and uart
+ // Use the following command to check whether Pinmux is in effect.
  // seeed@seeed-desktop:~$ sudo cat /sys/kernel/debug/pinctrl/2430000.pinmux/pinconf-groups | grep px5 -A 14
  // 121 (uart2_rx_px5): 
  // pull=0
@@ -314,6 +365,24 @@
  // func=uartb
  // pad-power=0
 
+ // check driver info
+ // seeed@seeed-desktop:~$ sudo cat /proc/tty/driver/tegra_hsuart 
+ // serinfo:1.0 driver revision:
+ // 0: uart:TEGRA_UART mmio:0x03100000 irq:26 tx:0 rx:0 CTS
+ // 1: uart:TEGRA_UART mmio:0x03110000 irq:87 tx:0 rx:0 CTS
+ // 3: uart:TEGRA_UART mmio:0x03130000 irq:88 tx:0 rx:0 CTS
+ // 4: uart:TEGRA_UART mmio:0x03140000 irq:89 tx:3 rx:0 RTS|CTS|DTR
+
+ // ttyTHS4
+ fragment@16{
+ target-path = "/serial@3140000";
+ __overlay__ {
+ status = "okay";
+ };
+ };
+
+ //ttyTHS0 for M.2 KEY-B (4G/5G)
+
 
 };