diff options
| author | Pali Rohár <pali@kernel.org> | 2022-02-19 16:28:16 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-02-25 10:27:58 +0100 |
| commit | ebd7e37a8b7e703555b0ca4796441c3876254773 (patch) | |
| tree | ce838584625ddafa1e9401f2b44608765fe2b684 /Documentation/devicetree/bindings/serial | |
| parent | serial: mvebu-uart: implement UART clock driver for configuring UART base clock (diff) | |
| download | linux-ebd7e37a8b7e703555b0ca4796441c3876254773.tar.xz linux-ebd7e37a8b7e703555b0ca4796441c3876254773.zip | |
dt-bindings: mvebu-uart: update information about UART clock
Device "marvell,armada-3700-uart" should use
"marvell,armada-3700-uart-clock" compatible clock.
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20220219152818.4319-5-kabel@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/serial')
| -rw-r--r-- | Documentation/devicetree/bindings/serial/mvebu-uart.txt | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/serial/mvebu-uart.txt b/Documentation/devicetree/bindings/serial/mvebu-uart.txt index 2d0dbdf32d1d..a062bbca532c 100644 --- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt +++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt @@ -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>; |