diff options
| author | Chen-Yu Tsai <wens@csie.org> | 2016-01-31 01:20:58 (GMT) |
|---|---|---|
| committer | Maxime Ripard <maxime.ripard@free-electrons.com> | 2016-02-04 12:03:04 (GMT) |
| commit | c5dee34e5c124381d3c2c5052c1c891e914543b3 (patch) | |
| tree | 26ea88437bd91e31f6ea0ee63fe0077dbecdc2d0 | |
| parent | 6b279560dd38ac66f3e65fd586cef37f5c2ae624 (diff) | |
| download | linux-c5dee34e5c124381d3c2c5052c1c891e914543b3.tar.xz | |
ARM: dts: sun8i-a83t: Correct low speed oscillator clocks
The A83T does not have a 32.768 kHz low speed oscillator, either as
an external crystal or input. It has a 16 MHz RC-based (inaccurate)
internal oscillator, which is then divided by 512 for a clock close
to 32 kHz.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Vishnu Patekar <vishnupatekar0510@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
| -rw-r--r-- | arch/arm/boot/dts/sun8i-a83t.dtsi | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi index 8d27b63..d3473f8 100644 --- a/arch/arm/boot/dts/sun8i-a83t.dtsi +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi @@ -118,6 +118,7 @@ #size-cells = <1>; ranges; + /* TODO: PRCM block has a mux for this. */ osc24M: osc24M_clk { #clock-cells = <0>; compatible = "fixed-clock"; @@ -125,11 +126,25 @@ clock-output-names = "osc24M"; }; - osc32k: osc32k_clk { + /* + * This is called "internal OSC" in some places. + * It is an internal RC-based oscillator. + * TODO: Its controls are in the PRCM block. + */ + osc16M: osc16M_clk { #clock-cells = <0>; compatible = "fixed-clock"; - clock-frequency = <32768>; - clock-output-names = "osc32k"; + clock-frequency = <16000000>; + clock-output-names = "osc16M"; + }; + + osc16Md512: osc16Md512_clk { + #clock-cells = <0>; + compatible = "fixed-factor-clock"; + clock-div = <512>; + clock-mult = <1>; + clocks = <&osc16M>; + clock-output-names = "osc16M-d512"; }; }; |