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arm64: dts: marvell: armada-37xx: add device node for UART clock and use it

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Define DT node for UART clock "marvell,armada-3700-uart-clock" and use
this UART clock as a base clock for all UART devices.

Reviewed-by: Marek Behún <kabel@kernel.org>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20220219152818.4319-7-kabel@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Pali Rohár 2022-02-19 16:28:18 +01:00 committed by Greg Kroah-Hartman
parent 694b711247
commit c77a6ac840
1 changed files with 12 additions and 2 deletions
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14
arch/arm64/boot/dts/marvell/armada-37xx.dtsi
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@ -132,10 +132,20 @@
reg = <0x11500 0x40>;
};
uartclk: clock-controller@12010 {
compatible = "marvell,armada-3700-uart-clock";
reg = <0x12010 0x4>, <0x12210 0x4>;
clocks = <&tbg 0>, <&tbg 1>, <&tbg 2>,
<&tbg 3>, <&xtalclk>;
clock-names = "TBG-A-P", "TBG-B-P", "TBG-A-S",
"TBG-B-S", "xtal";
#clock-cells = <1>;
};
uart0: serial@12000 {
compatible = "marvell,armada-3700-uart";
reg = <0x12000 0x18>;
clocks = <&xtalclk>;
clocks = <&uartclk 0>;
interrupts =
<GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
@ -147,7 +157,7 @@
uart1: serial@12200 {
compatible = "marvell,armada-3700-uart-ext";
reg = <0x12200 0x30>;
clocks = <&xtalclk>;
clocks = <&uartclk 1>;
interrupts =
<GIC_SPI 30 IRQ_TYPE_EDGE_RISING>,
<GIC_SPI 31 IRQ_TYPE_EDGE_RISING>;