1/*
2 *  Atheros AR933X UART defines
3 *
4 *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
5 *
6 *  This program is free software; you can redistribute it and/or modify it
7 *  under the terms of the GNU General Public License version 2 as published
8 *  by the Free Software Foundation.
9 */
10
11#ifndef __AR933X_UART_H
12#define __AR933X_UART_H
13
14#define AR933X_UART_REGS_SIZE		20
15#define AR933X_UART_FIFO_SIZE		16
16
17#define AR933X_UART_DATA_REG		0x00
18#define AR933X_UART_CS_REG		0x04
19#define AR933X_UART_CLOCK_REG		0x08
20#define AR933X_UART_INT_REG		0x0c
21#define AR933X_UART_INT_EN_REG		0x10
22
23#define AR933X_UART_DATA_TX_RX_MASK	0xff
24#define AR933X_UART_DATA_RX_CSR		BIT(8)
25#define AR933X_UART_DATA_TX_CSR		BIT(9)
26
27#define AR933X_UART_CS_PARITY_S		0
28#define AR933X_UART_CS_PARITY_M		0x3
29#define	  AR933X_UART_CS_PARITY_NONE	0
30#define	  AR933X_UART_CS_PARITY_ODD	1
31#define	  AR933X_UART_CS_PARITY_EVEN	2
32#define AR933X_UART_CS_IF_MODE_S	2
33#define AR933X_UART_CS_IF_MODE_M	0x3
34#define	  AR933X_UART_CS_IF_MODE_NONE	0
35#define	  AR933X_UART_CS_IF_MODE_DTE	1
36#define	  AR933X_UART_CS_IF_MODE_DCE	2
37#define AR933X_UART_CS_FLOW_CTRL_S	4
38#define AR933X_UART_CS_FLOW_CTRL_M	0x3
39#define AR933X_UART_CS_DMA_EN		BIT(6)
40#define AR933X_UART_CS_TX_READY_ORIDE	BIT(7)
41#define AR933X_UART_CS_RX_READY_ORIDE	BIT(8)
42#define AR933X_UART_CS_TX_READY		BIT(9)
43#define AR933X_UART_CS_RX_BREAK		BIT(10)
44#define AR933X_UART_CS_TX_BREAK		BIT(11)
45#define AR933X_UART_CS_HOST_INT		BIT(12)
46#define AR933X_UART_CS_HOST_INT_EN	BIT(13)
47#define AR933X_UART_CS_TX_BUSY		BIT(14)
48#define AR933X_UART_CS_RX_BUSY		BIT(15)
49
50#define AR933X_UART_CLOCK_STEP_M	0xffff
51#define AR933X_UART_CLOCK_SCALE_M	0xfff
52#define AR933X_UART_CLOCK_SCALE_S	16
53#define AR933X_UART_CLOCK_STEP_M	0xffff
54
55#define AR933X_UART_INT_RX_VALID	BIT(0)
56#define AR933X_UART_INT_TX_READY	BIT(1)
57#define AR933X_UART_INT_RX_FRAMING_ERR	BIT(2)
58#define AR933X_UART_INT_RX_OFLOW_ERR	BIT(3)
59#define AR933X_UART_INT_TX_OFLOW_ERR	BIT(4)
60#define AR933X_UART_INT_RX_PARITY_ERR	BIT(5)
61#define AR933X_UART_INT_RX_BREAK_ON	BIT(6)
62#define AR933X_UART_INT_RX_BREAK_OFF	BIT(7)
63#define AR933X_UART_INT_RX_FULL		BIT(8)
64#define AR933X_UART_INT_TX_EMPTY	BIT(9)
65#define AR933X_UART_INT_ALLINTS		0x3ff
66
67#endif /* __AR933X_UART_H */
68