README
1 0. Directory structure
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3 For ease of source browsing this directory may contain soft links to variant
4 directories located elsewhere;
5 build scripts fully support such layout, however this is not necessary in order
6 to build such variants.
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8 1. HW Customization
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10 1.1 General description
11 - wakeup-gpio has direction from Application Processor (AP) to ContextHub
12 - irq1 has direction from ContextHub to AP (wakeup interrupt)
13 - irq2 has direction from ContextHub to AP (non-wakeup interrupt) (optional)
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15 1.2 Kernel side
16 - wakeup-gpio = SH_INT_WAKEUP
17 - irq1-gpio = AP_INT_WAKEUP
18 - irq2-gpio = AP_INT_NONWAKEUP
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20 1.3 ContextHub side
21 - #define SH_INT_WAKEUP PX(N0)
22 - #define AP_INT_WAKEUP PY(N1)
23 - #define AP_INT_NONWAKEUP PZ(N2)
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