adding fan page, updating hardware, i2c, and m2 pages

docs/helios64/fan.md

@@ -0,0 +1,18 @@
+## PWM Fan
+
+Please kindly review the [pwm pages](/helios4/pwm) from the Helios4 device.
+Basically the PWM mechanisms of Helios64 board is same with Helios4.
+
+---TBU---
+
+### Fan Specification in Helios64
+
+Coming Soon.
+
+### Use Case in Linux
+
+Coming Soon.
+
+!!! Notes
+       RPM readings in the PWM fans is not available in Helios64 board.
+

docs/helios64/hardware.md

@@ -10,7 +10,6 @@ This block diagram is cited from the RK3399 website documentation. [1](http://op
 
 ## Connector / Interface List
 
-
 ![!Board Legend](/helios64/img/hardware/helios64_board_labeled.jpg)
 
 Name |Peripheral Type|Connector Type|Details

docs/helios64/i2c.md

@@ -126,10 +126,10 @@ We can follow this step to perform the scanning process:
 $ sudo apt-get install i2c-tools
 ```
 
-2. Use **i2cdetect** tool to scan I2C Bus 1.
+2. Use **i2cdetect** tool to scan I2C Bus 8.
 
 ```
-root@helios64:~# i2cdetect -y 1
+root@helios64:~# i2cdetect -y 8
 
      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
 00:          -- -- -- -- -- -- -- -- -- -- -- -- --

docs/helios64/m2.md

@@ -22,7 +22,7 @@ The maximum size of supported M.2 device is the 228 size.
 
 ## Notes related to M.2 Card
 The M.2 devices installed in Helios64 is configured as sharing devices with SATA Port 1.
-Therefore if you install M.2 module, you will not be able to access the SATA Port 1.
+Therefore if you install M.2 SATA module, you will not be able to access the SATA Port 1.
 
 The USB bus is connected to the EHCI Host 0.
 

mkdocs.yml

@@ -82,6 +82,8 @@ nav:
     - USB : 'helios64/usb.md'
     - UEXT : 'helios64/uext.md'
     - Front Panel : 'helios64/front-panel.md'
+    - M.2 : 'helios64/m2.md'
+    - PWM Fan : 'helios64/fan.md'
 - Helios4:
   - Introduction: 'helios4/intro.md'
   - Kit Assembly: 'helios4/kit.md'