From: Pali Rohár <pali@xxxxxxxxxx>
Define DT node for UART clock "marvell,armada-3700-uart-clock" and use
this UART clock as a base clock for all UART devices.
Signed-off-by: Pali Rohár <pali@xxxxxxxxxx>
Reviewed-by: Marek Behún <kabel@xxxxxxxxxx>
Signed-off-by: Marek Behún <kabel@xxxxxxxxxx>
---
Changes since v7:
- changed commit message ("This change defines" -> "Define")
- added Marek's Reviewed-by tag
---
arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 673f4906eef9..4cf6c8aa0ac2 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -132,10 +132,20 @@ avs: avs@11500 {
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 @@ uart0: serial@12000 {
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>;
--
2.34.1
