system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-09-30 08:20:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

ARM: sun8i: a23/a33: Enable the real LOSC and use it

Browse source 
So far, the LOSC was generated through the RTC internal oscillator, which
was a pretty poor and inaccurate choice.

Now that the RTC properly exposes its internal mux between its oscillator
and the external oscillator, we can use it were relevant.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard 2017-01-23 11:41:51 +01:00
parent 01dc563b63
commit e7f68403f4
1 changed files with 8 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
arch/arm/boot/dts/sun8i-a23-a33.dtsi
View file

@ -109,11 +109,11 @@ osc24M: osc24M_clk {
clock-output-names = "osc24M";
};
osc32k: osc32k_clk {
ext_osc32k: ext_osc32k_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <32768>;
clock-output-names = "osc32k";
clock-output-names = "ext-osc32k";
};
};
@ -256,7 +256,7 @@ ohci0: usb@01c1a400 {
ccu: clock@01c20000 {
reg = <0x01c20000 0x400>;
clocks = <&osc24M>, <&osc32k>;
clocks = <&osc24M>, <&rtc 0>;
clock-names = "hosc", "losc";
#clock-cells = <1>;
#reset-cells = <1>;
@ -266,7 +266,7 @@ pio: pinctrl@01c20800 {
/* compatible gets set in SoC specific dtsi file */
reg = <0x01c20800 0x400>;
/* interrupts get set in SoC specific dtsi file */
clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&osc32k>;
clocks = <&ccu CLK_BUS_PIO>, <&osc24M>, <&rtc 0>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
interrupt-controller;
@ -486,6 +486,9 @@ rtc: rtc@01f00000 {
reg = <0x01f00000 0x54>;
interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
clock-output-names = "osc32k";
clocks = <&ext_osc32k>;
#clock-cells = <1>;
};
nmi_intc: interrupt-controller@01f00c0c {
@ -564,7 +567,7 @@ r_pio: pinctrl@01f02c00 {
compatible = "allwinner,sun8i-a23-r-pinctrl";
reg = <0x01f02c00 0x400>;
interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&apb0_gates 0>, <&osc24M>, <&osc32k>;
clocks = <&apb0_gates 0>, <&osc24M>, <&rtc 0>;
clock-names = "apb", "hosc", "losc";
resets = <&apb0_rst 0>;
gpio-controller;