[Home] [Cat] [About] [Syntax] [Scraps]

[millerjs.org]

Differences

This shows you the differences between two versions of the page.

--- aml-s905x-cc [2023/11/02 18:07] – [PPS] 69.53.43.57
+++ aml-s905x-cc [2024/11/14 02:30] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Libre Computer Le Potato AML-S905X-CC ======
+Pretty much everything here should apply to the v2, as well.
-===== PPS =====
+Pinout:
+https://docs.google.com/spreadsheets/d/1U3z0Gb8HUEfCIMkvqzmhMpJfzRqjPXq7mFLC-hvbKlE/edit#gid=0
-<file c pps_pin13.dts>
+==== TimePotato ====
+Pretty much everything here is standard, the main difference is loading the overlays for UART, RTC, and PPS. RTC and PPS must be manually compiled.
+==== RV-3032-C7 ====
+<file c i2c-ao-rv3032.dts>
 /dts-v1/;
 /plugin/;
+/ {
+	compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
+	fragment@1 {
+		target = <&i2c_AO>;
+		__overlay__ {
+			rtc@52 {
+				compatible = "microcrystal,rv3032";
+				reg = <0x51>;
+			};
+		};
+	};
+};
+</file>
+==== PPS Pin 7 ====
+<file c pps_pin7.dts>
+/dts-v1/;
+/plugin/;
 / {
   compatible = "libretech,cc", "amlogic,s905x", "amlogic,meson-gxl";
   fragment@0 {
     target-path = "/";
@@ Line 15: / Line 46: @@
       pps_gpio: pps-gpio {
         compatible = "pps-gpio";
+        gpios = <&gpio 98 0>;
         interrupt-parent = <&gpio_intc>;
         interrupts = <98 1>;
@@ Line 25: / Line 57: @@
 </file>
-build with
+==== Build & Merge ====
 <code>
-dtc -I dts -O dtb pps_pin13.dts -o pps-pin13.dtbo
+dtc -I dts -O dtb pps_pin7.dts -o pps-pin7.dtbo ;
+dtc -I dts -O dtb i2c-ao-rv3032.dts -o i2c-ao-rv3032.dtbo
 </code>
 copy:
-<code>sudo cp pps_pin13.dtbo /opt/librecomputer/libretech-wiring-tool/libre-computer/aml-s905x-cc-v2/dt/</code>
+<code>sudo cp *.dtbo \
+/opt/librecomputer/libretech-wiring-tool/libre-computer/aml-s905x-cc-v2/dt/.</code>
 merge:
 <code>
-sudo ldto merge pps-pin13
+sudo ldto merge i2c-ao ;
+sudo ldto merge uart-a ;
+sudo ldto merge i2c-ao-rv3032 ;
+sudo ldto merge pps-pin7 ;
+sudo reboot
+</code>
+Disable the SW RTC
+<code>
+echo "blacklist rtc_meson_vrtc" | sudo tee -a /etc/modules >/dev/null
 </code>

[Home] [Cat] [About] [Syntax] [Scraps] [millerjs.org]

Differences

[Home] [Cat] [About] [Syntax] [Scraps]

[millerjs.org]