xref: /netbsd-src/sys/arch/arm/amlogic/meson_uart.h (revision 912cfa1495a89368f5a8d2bccc65e0959dcd414a)
1*912cfa14Sjmcneill /* $NetBSD: meson_uart.h,v 1.1 2019/01/19 20:56:03 jmcneill Exp $ */
2*912cfa14Sjmcneill 
3*912cfa14Sjmcneill /*-
4*912cfa14Sjmcneill  * Copyright (c) 2015 Jared D. McNeill <jmcneill@invisible.ca>
5*912cfa14Sjmcneill  * All rights reserved.
6*912cfa14Sjmcneill  *
7*912cfa14Sjmcneill  * Redistribution and use in source and binary forms, with or without
8*912cfa14Sjmcneill  * modification, are permitted provided that the following conditions
9*912cfa14Sjmcneill  * are met:
10*912cfa14Sjmcneill  * 1. Redistributions of source code must retain the above copyright
11*912cfa14Sjmcneill  *    notice, this list of conditions and the following disclaimer.
12*912cfa14Sjmcneill  * 2. Redistributions in binary form must reproduce the above copyright
13*912cfa14Sjmcneill  *    notice, this list of conditions and the following disclaimer in the
14*912cfa14Sjmcneill  *    documentation and/or other materials provided with the distribution.
15*912cfa14Sjmcneill  *
16*912cfa14Sjmcneill  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17*912cfa14Sjmcneill  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18*912cfa14Sjmcneill  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19*912cfa14Sjmcneill  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20*912cfa14Sjmcneill  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21*912cfa14Sjmcneill  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22*912cfa14Sjmcneill  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23*912cfa14Sjmcneill  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24*912cfa14Sjmcneill  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25*912cfa14Sjmcneill  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26*912cfa14Sjmcneill  * SUCH DAMAGE.
27*912cfa14Sjmcneill  */
28*912cfa14Sjmcneill 
29*912cfa14Sjmcneill #ifndef _MESON_UART_H
30*912cfa14Sjmcneill #define _MESON_UART_H
31*912cfa14Sjmcneill 
32*912cfa14Sjmcneill #define UART_WFIFO_REG		0x00
33*912cfa14Sjmcneill #define UART_RFIFO_REG		0x04
34*912cfa14Sjmcneill #define UART_CONTROL_REG	0x08
35*912cfa14Sjmcneill #define UART_STATUS_REG		0x0c
36*912cfa14Sjmcneill #define UART_MISC_REG		0x10
37*912cfa14Sjmcneill #define UART_REG5_REG		0x14
38*912cfa14Sjmcneill 
39*912cfa14Sjmcneill #define UART_CONTROL_TX_INT_EN	__BIT(28)
40*912cfa14Sjmcneill #define UART_CONTROL_RX_INT_EN	__BIT(27)
41*912cfa14Sjmcneill #define UART_CONTROL_CLEAR_ERR	__BIT(24)
42*912cfa14Sjmcneill #define UART_CONTROL_RX_RESET	__BIT(23)
43*912cfa14Sjmcneill #define UART_CONTROL_TX_RESET	__BIT(22)
44*912cfa14Sjmcneill #define UART_CONTROL_RX_EN	__BIT(13)
45*912cfa14Sjmcneill #define UART_CONTROL_TX_EN	__BIT(12)
46*912cfa14Sjmcneill 
47*912cfa14Sjmcneill #define UART_STATUS_RX_BUSY	__BIT(26)
48*912cfa14Sjmcneill #define UART_STATUS_TX_BUSY	__BIT(25)
49*912cfa14Sjmcneill #define UART_STATUS_TX_EMPTY	__BIT(22)
50*912cfa14Sjmcneill #define UART_STATUS_TX_FULL	__BIT(21)
51*912cfa14Sjmcneill #define UART_STATUS_RX_EMPTY	__BIT(20)
52*912cfa14Sjmcneill #define UART_STATUS_BREAK	__BIT(17)
53*912cfa14Sjmcneill 
54*912cfa14Sjmcneill #define UART_MISC_TX_IRQ_CNT	__BITS(15,8)
55*912cfa14Sjmcneill #define UART_MISC_RX_IRQ_CNT	__BITS(7,0)
56*912cfa14Sjmcneill 
57*912cfa14Sjmcneill #endif /* _MESON_UART_H */
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