@@ -14,7 +14,10 @@ Required properties:
is provided (possible only with the "marvell,armada-3700-uart"
compatible string for backward compatibility), it will only work
if the baudrate was initialized by the bootloader and no baudrate
- change will then be possible.
+ change will then be possible. When provided it should be UART1-clk
+ for standard variant of UART and UART2-clk for extended variant
+ of UART. TBG clock (with UART TBG divisors d1=d2=1) or xtal clock
+ should not be used and are supported only for backward compatibility.
- interrupts:
- Must contain three elements for the standard variant of the IP
(marvell,armada-3700-uart): "uart-sum", "uart-tx" and "uart-rx",
@@ -34,7 +37,7 @@ Example:
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>,
@@ -45,7 +48,7 @@ Example:
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>;
Device "marvell,armada-3700-uart" should use "marvell,armada-3700-uart-clock" compatible clock. Signed-off-by: Pali Rohár <pali@kernel.org> --- Documentation/devicetree/bindings/serial/mvebu-uart.txt | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)