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| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2018-09-13 22:29:16 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@baylibre.com> | 2018-09-26 01:49:49 -0700 |
| commit | 524d96083b66455a73ae88e40cbcb838da114416 (patch) | |
| tree | e8c6d2f25c78ce74458c213385245b82013d88a1 /Documentation/ide | |
| parent | bbedc1f1d90e33803001ceb8d9585b2f04fc10d0 (diff) | |
ARM: dts: meson8b: odroidc1: add the CPU voltage regulator
The CPU voltage regulator is a "Monolithic Power Systems MP2161"
(according to the Odroid-C1+'s schematics). It is driven by PWM_C on
GPIODV_9.
Hardkernel's 3.10 kernel (based on the Amlogic GPL kernel sources)
defines a PWM voltage table with the following values:
- 0.86 volts = PWM register value 0x10f001b
- (more values in 0.1 volt increments)
- 1.14 volts = PWM register value 0x000012a
When using the XTAL (24MHz) as input this translates into a PWM period
of 12218ns with 0.86V using a duty cycle of 91% and 1.14V using a duty
cycle of 0%.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Diffstat (limited to 'Documentation/ide')
0 files changed, 0 insertions, 0 deletions