From 31578e285a21a749a49e3ac146feb8b02fcc7b52 Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Wed, 4 Dec 2019 06:11:35 +0100 Subject: added new metal sdk --- code/fe310/include/sifive/devices/uart.h | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 code/fe310/include/sifive/devices/uart.h (limited to 'code/fe310/include/sifive/devices/uart.h') diff --git a/code/fe310/include/sifive/devices/uart.h b/code/fe310/include/sifive/devices/uart.h new file mode 100644 index 0000000..71bea6f --- /dev/null +++ b/code/fe310/include/sifive/devices/uart.h @@ -0,0 +1,27 @@ +// 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 */ -- cgit v1.2.3