18c2ecf20Sopenharmony_ci* ARM SBSA defined generic UART 28c2ecf20Sopenharmony_ciThis UART uses a subset of the PL011 registers and consequently lives 38c2ecf20Sopenharmony_ciin the PL011 driver. It's baudrate and other communication parameters 48c2ecf20Sopenharmony_cicannot be adjusted at runtime, so it lacks a clock specifier here. 58c2ecf20Sopenharmony_ci 68c2ecf20Sopenharmony_ciRequired properties: 78c2ecf20Sopenharmony_ci- compatible: must be "arm,sbsa-uart" 88c2ecf20Sopenharmony_ci- reg: exactly one register range 98c2ecf20Sopenharmony_ci- interrupts: exactly one interrupt specifier 108c2ecf20Sopenharmony_ci- current-speed: the (fixed) baud rate set by the firmware 11