u-boot/doc/device-tree-bindings/serial/ns16550.txt

NS16550 UART

This UART driver supports many chip variants and is used in mamy SoCs.

Required properties:
- compatible: "ns16550" or "nvidia,tegra20-uart"
- reg: start address and size of registers
- reg-shift: shift value indicating register size: 0=byte, 1=16bit,2=32bit etc.
- clock-frequency: input clock frequency for the UART (used to calculate the
    baud rate divisor)
dm: serial: Add driver model support for ns16550 Add driver model support so that ns16550 can support operation both with and without driver model. The driver needs a clock frequency so cannot stand alone unfortunately. The clock frequency must be provided by a separate driver. Signed-off-by: Simon Glass <sjg@chromium.org> 2014-09-04 22:27:34 +00:00			`NS16550 UART`

			`This UART driver supports many chip variants and is used in mamy SoCs.`

			`Required properties:`
			`- compatible: "ns16550" or "nvidia,tegra20-uart"`
			`- reg: start address and size of registers`
			`- reg-shift: shift value indicating register size: 0=byte, 1=16bit,2=32bit etc.`
			`- clock-frequency: input clock frequency for the UART (used to calculate the`
			`baud rate divisor)`