View source for Specific SOM U-Boot Environment Variables

== Naon Family ==

The variables listed on the following table applies to Naon, Maya and Dido SOMs.

{| class="wikitable" | 
| align="center" style="background:#f0f0f0;"|'''Variable'''
| align="center" style="background:#f0f0f0;"|'''Values'''
| align="center" style="background:#f0f0f0;"|'''Description'''
| align="center" style="background:#f0f0f0;"|'''Notes'''
|-
| eth0<br>eth1
| xx:xx:xx:xx:xx:xx 
| MAC address for both eth0 and eth1 interfaces
| Available with NELK 4.0.0 and above
|-
| dual_emac
| 0 - 1 [0: CPSW switch mode - 1: CPSW dual EMAC mode] 
| Configures CPSW mode 
| Available with NELK 4.0.0 and above
|-
| cpsw 
| 0 - 1 [0: phy 6 -> 100Mbit Naon module - 1: phy 1 -> 1Gbit external phy] 
| Selects primary phy for networking operations in U-Boot  
| Available with NELK 2.0.0 and above<br>External phy available on Naon-EVB-Lite and Naon-EVB-Mid
|-
| giga 
| on [on : gigabit] 
| Selects gigabit speed on gigabit link 
| Available with NELK 2.0.0 and above
|-
| naon_host
| Naon: [evb_mid - evb_lite]<br>Maya: [maya_naon_evb_lite]<br> Dido: [evb_mid - evb_lite]
| Selects carrier board pinmux
| Available with NELK 2.0.0 and above<br>Please refer to U-Boot source tree for the available pinmux
|-
|+ align="bottom" style="caption-side: bottom" | U-Boot specific variables for Naon-family SOMs
|}


=== Dido ===

The following variables applies to Dido CPU module. Please note that the this variables refers to U-Boot and Linux provided with NELK version 4.0.0.

<pre>
addmem = 'setenv bootargs ${bootargs} mem 364M mem=320M@0x9fc00000 mem=1020M@0xc0000000 vmalloc=500M' - Dido 2 GB memory
</pre>