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nuc5: Add i2c support for intel 5th generation NUC

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Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
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Brendan Le Foll
2015-09-03 11:23:35 +01:00
parent ba348a2da4
commit f95f2d8b35
8 changed files with 241 additions and 0 deletions
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docs/index.md
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@@ -45,6 +45,7 @@ Specific platform information for supported platforms is documented here:
- @ref rasppi
- @ref bananapi
- @ref beaglebone
- @ref nuc5
## DEBUGGING

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docs/intel_nuc5.md Normal file
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Intel NUC NUC5i5MYBE {#nuc5}
====================
Pinmuxing on the 5th generation Intel NUCs is done in the BIOS. This is only
tested on bios 0024+ (MYBDWi5v.86A). By default the custom solution header is
disabled, currently in Linux (as of 4.2). Both i2c buses are currently
supported.
The NUCs supported are the NUC5i5MYBE & NUC5i3MYBE which also come as the
NUC5i5MYHE and NUC5i3MYHE motherboards. It's possible that others expose the IO
in a very similar way so could be supported, get in touch if you have one!
In the BIOS you are required to enable the following:
Devices -> Onboard Devices - GPIO Lockdown
Select I2c under GPIO for the 12/13 14/15 pins
Interface notes
---------------
**I2C** Depending on your system you may need to load `i2c-dev`
Custom Solutions Header mapping
-------------------------------
The mapping is the same as the DE3815tykhe.
| MRAA Number | Physical Pin | Function | Notes |
|-------------|--------------|--------------|----------------------|
| 0 | 1 | 1.8V sby | |
| 1 | 2 | GND | |
| 2 | 3 | HDMI_CEC | |
| 3 | 4 | DMIC_CLK | |
| 4 | 5 | 3.3V sby | |
| 5 | 6 | DMIC_DATA | |
| 6 | 7 | Key (no pin) | |
| 7 | 8 | SMB_ALERT# | |
| 8 | 9 | 5V sby (2A) | |
| 9 | 10 | SCI_SMI_GPIO | |
| 10 | 11 | PWM[0] | |
| 11 | 12 | PWM[1] | |
| 12 | 13 | I2C0_CLK | /dev/i2c-0 SCL |
| 13 | 14 | I2C0_DATA | /dev/i2c-0 SDA |
| 14 | 15 | I2C1_CLK | /dev/i2c-1 SCL |
| 15 | 16 | I2C1_DATA | /dev/i2c-1-SDA |
| 16 | 17 | SMB_CLK | |
| 17 | 18 | SMB_DATA | |