1 /* $NetBSD: meson_uart.h,v 1.1 2019/01/19 20:56:03 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _MESON_UART_H 30 #define _MESON_UART_H 31 32 #define UART_WFIFO_REG 0x00 33 #define UART_RFIFO_REG 0x04 34 #define UART_CONTROL_REG 0x08 35 #define UART_STATUS_REG 0x0c 36 #define UART_MISC_REG 0x10 37 #define UART_REG5_REG 0x14 38 39 #define UART_CONTROL_TX_INT_EN __BIT(28) 40 #define UART_CONTROL_RX_INT_EN __BIT(27) 41 #define UART_CONTROL_CLEAR_ERR __BIT(24) 42 #define UART_CONTROL_RX_RESET __BIT(23) 43 #define UART_CONTROL_TX_RESET __BIT(22) 44 #define UART_CONTROL_RX_EN __BIT(13) 45 #define UART_CONTROL_TX_EN __BIT(12) 46 47 #define UART_STATUS_RX_BUSY __BIT(26) 48 #define UART_STATUS_TX_BUSY __BIT(25) 49 #define UART_STATUS_TX_EMPTY __BIT(22) 50 #define UART_STATUS_TX_FULL __BIT(21) 51 #define UART_STATUS_RX_EMPTY __BIT(20) 52 #define UART_STATUS_BREAK __BIT(17) 53 54 #define UART_MISC_TX_IRQ_CNT __BITS(15,8) 55 #define UART_MISC_RX_IRQ_CNT __BITS(7,0) 56 57 #endif /* _MESON_UART_H */ 58