| // See LICENSE for license details. |
| |
| #ifndef _SIFIVE_UART_H |
| #define _SIFIVE_UART_H |
| |
| /* Register offsets */ |
| #define UART_REG_TXFIFO 0x00 |
| #define UART_REG_RXFIFO 0x04 |
| #define UART_REG_TXCTRL 0x08 |
| #define UART_REG_RXCTRL 0x0c |
| #define UART_REG_IE 0x10 |
| #define UART_REG_IP 0x14 |
| #define UART_REG_DIV 0x18 |
| |
| /* TXCTRL register */ |
| #define UART_TXEN 0x1 |
| #define UART_TXWM(x) (((x) & 0xffff) << 16) |
| |
| /* RXCTRL register */ |
| #define UART_RXEN 0x1 |
| #define UART_RXWM(x) (((x) & 0xffff) << 16) |
| |
| /* IP register */ |
| #define UART_IP_TXWM 0x1 |
| #define UART_IP_RXWM 0x2 |
| |
| #endif /* _SIFIVE_UART_H */ |
