| 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) |