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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/include/asm-arm/hardware/serial_amba.h
3 *
4 * Internal header file for AMBA serial ports
5 *
6 * Copyright (C) ARM Limited
7 * Copyright (C) 2000 Deep Blue Solutions Ltd.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23#ifndef ASM_ARM_HARDWARE_SERIAL_AMBA_H
24#define ASM_ARM_HARDWARE_SERIAL_AMBA_H
25
26/* -------------------------------------------------------------------------------
27 * From AMBA UART (PL010) Block Specification
28 * -------------------------------------------------------------------------------
29 * UART Register Offsets.
30 */
31#define UART01x_DR 0x00 /* Data read or written from the interface. */
32#define UART01x_RSR 0x04 /* Receive status register (Read). */
33#define UART01x_ECR 0x04 /* Error clear register (Write). */
34#define UART010_LCRH 0x08 /* Line control register, high byte. */
35#define UART010_LCRM 0x0C /* Line control register, middle byte. */
36#define UART010_LCRL 0x10 /* Line control register, low byte. */
37#define UART010_CR 0x14 /* Control register. */
38#define UART01x_FR 0x18 /* Flag register (Read only). */
39#define UART010_IIR 0x1C /* Interrupt indentification register (Read). */
40#define UART010_ICR 0x1C /* Interrupt clear register (Write). */
41#define UART01x_ILPR 0x20 /* IrDA low power counter register. */
42#define UART011_IBRD 0x24 /* Integer baud rate divisor register. */
43#define UART011_FBRD 0x28 /* Fractional baud rate divisor register. */
44#define UART011_LCRH 0x2c /* Line control register. */
45#define UART011_CR 0x30 /* Control register. */
46#define UART011_IFLS 0x34 /* Interrupt fifo level select. */
47#define UART011_IMSC 0x38 /* Interrupt mask. */
48#define UART011_RIS 0x3c /* Raw interrupt status. */
49#define UART011_MIS 0x40 /* Masked interrupt status. */
50#define UART011_ICR 0x44 /* Interrupt clear register. */
51#define UART011_DMACR 0x48 /* DMA control register. */
52
Russell Kingb63d4f02005-11-19 11:10:35 +000053#define UART011_DR_OE (1 << 11)
54#define UART011_DR_BE (1 << 10)
55#define UART011_DR_PE (1 << 9)
56#define UART011_DR_FE (1 << 8)
57
Linus Torvalds1da177e2005-04-16 15:20:36 -070058#define UART01x_RSR_OE 0x08
59#define UART01x_RSR_BE 0x04
60#define UART01x_RSR_PE 0x02
61#define UART01x_RSR_FE 0x01
62
63#define UART011_FR_RI 0x100
64#define UART011_FR_TXFE 0x080
65#define UART011_FR_RXFF 0x040
66#define UART01x_FR_TXFF 0x020
67#define UART01x_FR_RXFE 0x010
68#define UART01x_FR_BUSY 0x008
69#define UART01x_FR_DCD 0x004
70#define UART01x_FR_DSR 0x002
71#define UART01x_FR_CTS 0x001
72#define UART01x_FR_TMSK (UART01x_FR_TXFF + UART01x_FR_BUSY)
73
74#define UART011_CR_CTSEN 0x8000 /* CTS hardware flow control */
75#define UART011_CR_RTSEN 0x4000 /* RTS hardware flow control */
76#define UART011_CR_OUT2 0x2000 /* OUT2 */
77#define UART011_CR_OUT1 0x1000 /* OUT1 */
78#define UART011_CR_RTS 0x0800 /* RTS */
79#define UART011_CR_DTR 0x0400 /* DTR */
80#define UART011_CR_RXE 0x0200 /* receive enable */
81#define UART011_CR_TXE 0x0100 /* transmit enable */
82#define UART011_CR_LBE 0x0080 /* loopback enable */
83#define UART010_CR_RTIE 0x0040
84#define UART010_CR_TIE 0x0020
85#define UART010_CR_RIE 0x0010
86#define UART010_CR_MSIE 0x0008
87#define UART01x_CR_IIRLP 0x0004 /* SIR low power mode */
88#define UART01x_CR_SIREN 0x0002 /* SIR enable */
89#define UART01x_CR_UARTEN 0x0001 /* UART enable */
90
91#define UART011_LCRH_SPS 0x80
92#define UART01x_LCRH_WLEN_8 0x60
93#define UART01x_LCRH_WLEN_7 0x40
94#define UART01x_LCRH_WLEN_6 0x20
95#define UART01x_LCRH_WLEN_5 0x00
96#define UART01x_LCRH_FEN 0x10
97#define UART01x_LCRH_STP2 0x08
98#define UART01x_LCRH_EPS 0x04
99#define UART01x_LCRH_PEN 0x02
100#define UART01x_LCRH_BRK 0x01
101
102#define UART010_IIR_RTIS 0x08
103#define UART010_IIR_TIS 0x04
104#define UART010_IIR_RIS 0x02
105#define UART010_IIR_MIS 0x01
106
107#define UART011_IFLS_RX1_8 (0 << 3)
108#define UART011_IFLS_RX2_8 (1 << 3)
109#define UART011_IFLS_RX4_8 (2 << 3)
110#define UART011_IFLS_RX6_8 (3 << 3)
111#define UART011_IFLS_RX7_8 (4 << 3)
112#define UART011_IFLS_TX1_8 (0 << 0)
113#define UART011_IFLS_TX2_8 (1 << 0)
114#define UART011_IFLS_TX4_8 (2 << 0)
115#define UART011_IFLS_TX6_8 (3 << 0)
116#define UART011_IFLS_TX7_8 (4 << 0)
Alessandro Rubini5926a292009-06-04 17:43:04 +0100117/* special values for ST vendor with deeper fifo */
118#define UART011_IFLS_RX_HALF (5 << 3)
119#define UART011_IFLS_TX_HALF (5 << 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120
121#define UART011_OEIM (1 << 10) /* overrun error interrupt mask */
122#define UART011_BEIM (1 << 9) /* break error interrupt mask */
123#define UART011_PEIM (1 << 8) /* parity error interrupt mask */
124#define UART011_FEIM (1 << 7) /* framing error interrupt mask */
125#define UART011_RTIM (1 << 6) /* receive timeout interrupt mask */
126#define UART011_TXIM (1 << 5) /* transmit interrupt mask */
127#define UART011_RXIM (1 << 4) /* receive interrupt mask */
128#define UART011_DSRMIM (1 << 3) /* DSR interrupt mask */
129#define UART011_DCDMIM (1 << 2) /* DCD interrupt mask */
130#define UART011_CTSMIM (1 << 1) /* CTS interrupt mask */
131#define UART011_RIMIM (1 << 0) /* RI interrupt mask */
132
133#define UART011_OEIS (1 << 10) /* overrun error interrupt status */
134#define UART011_BEIS (1 << 9) /* break error interrupt status */
135#define UART011_PEIS (1 << 8) /* parity error interrupt status */
136#define UART011_FEIS (1 << 7) /* framing error interrupt status */
137#define UART011_RTIS (1 << 6) /* receive timeout interrupt status */
138#define UART011_TXIS (1 << 5) /* transmit interrupt status */
139#define UART011_RXIS (1 << 4) /* receive interrupt status */
140#define UART011_DSRMIS (1 << 3) /* DSR interrupt status */
141#define UART011_DCDMIS (1 << 2) /* DCD interrupt status */
142#define UART011_CTSMIS (1 << 1) /* CTS interrupt status */
143#define UART011_RIMIS (1 << 0) /* RI interrupt status */
144
145#define UART011_OEIC (1 << 10) /* overrun error interrupt clear */
146#define UART011_BEIC (1 << 9) /* break error interrupt clear */
147#define UART011_PEIC (1 << 8) /* parity error interrupt clear */
148#define UART011_FEIC (1 << 7) /* framing error interrupt clear */
149#define UART011_RTIC (1 << 6) /* receive timeout interrupt clear */
150#define UART011_TXIC (1 << 5) /* transmit interrupt clear */
151#define UART011_RXIC (1 << 4) /* receive interrupt clear */
152#define UART011_DSRMIC (1 << 3) /* DSR interrupt clear */
153#define UART011_DCDMIC (1 << 2) /* DCD interrupt clear */
154#define UART011_CTSMIC (1 << 1) /* CTS interrupt clear */
155#define UART011_RIMIC (1 << 0) /* RI interrupt clear */
156
157#define UART011_DMAONERR (1 << 2) /* disable dma on error */
158#define UART011_TXDMAE (1 << 1) /* enable transmit dma */
159#define UART011_RXDMAE (1 << 0) /* enable receive dma */
160
161#define UART01x_RSR_ANY (UART01x_RSR_OE|UART01x_RSR_BE|UART01x_RSR_PE|UART01x_RSR_FE)
162#define UART01x_FR_MODEM_ANY (UART01x_FR_DCD|UART01x_FR_DSR|UART01x_FR_CTS)
163
Russell Kingfbb18a22006-03-26 23:13:39 +0100164#ifndef __ASSEMBLY__
Alessandro Rubiniaa853f82009-06-06 10:17:57 +0100165struct amba_device; /* in uncompress this is included but amba/bus.h is not */
Russell Kingfbb18a22006-03-26 23:13:39 +0100166struct amba_pl010_data {
167 void (*set_mctrl)(struct amba_device *dev, void __iomem *base, unsigned int mctrl);
168};
169#endif
170
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171#endif