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// See LICENSE for license details.
#ifndef _RISCV_UART_H
#define _RISCV_UART_H
#include <stdint.h>
extern volatile uint32_t* uart;
#define UART_REG_TXFIFO 0
#define UART_REG_RXFIFO 1
#define UART_REG_TXCTRL 2
#define UART_REG_RXCTRL 3
#define UART_REG_DIV 4
#define UART_TXEN 0x1
#define UART_RXEN 0x1
void uart_putchar(uint8_t ch);
int uart_getchar();
void query_uart(uintptr_t dtb);
#endif
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