2 * uart.h -- ColdFire internal UART support defines.
4 * Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
5 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 /****************************************************************************/
29 /****************************************************************************/
31 /* UART module registers */
32 /* Register read/write struct */
34 u8 umr; /* 0x00 Mode Register */
37 u8 usr; /* 0x04 Status Register */
38 u8 ucsr; /* 0x04 Clock Select Register */
41 u8 ucr; /* 0x08 Command Register */
44 u8 utb; /* 0x0c Transmit Buffer */
45 u8 urb; /* 0x0c Receive Buffer */
49 u8 uipcr; /* 0x10 Input Port Change Register */
50 u8 uacr; /* 0x10 Auxiliary Control reg */
54 u8 uimr; /* 0x14 Interrupt Mask reg */
55 u8 uisr; /* 0x14 Interrupt Status reg */
58 u8 ubg1; /* 0x18 Counter Timer Upper Register */
60 u8 ubg2; /* 0x1c Counter Timer Lower Register */
62 u8 uip; /* 0x34 Input Port Register */
64 u8 uop1; /* 0x38 Output Port Set Register */
66 u8 uop0; /* 0x3c Output Port Reset Register */
69 /*********************************************************************
70 * Universal Asynchronous Receiver Transmitter (UART)
71 *********************************************************************/
72 /* Bit definitions and macros for UMR */
73 #define UART_UMR_BC(x) (((x)&0x03))
74 #define UART_UMR_PT (0x04)
75 #define UART_UMR_PM(x) (((x)&0x03)<<3)
76 #define UART_UMR_ERR (0x20)
77 #define UART_UMR_RXIRQ (0x40)
78 #define UART_UMR_RXRTS (0x80)
79 #define UART_UMR_SB(x) (((x)&0x0F))
80 #define UART_UMR_TXCTS (0x10) /* Trsnsmit CTS */
81 #define UART_UMR_TXRTS (0x20) /* Transmit RTS */
82 #define UART_UMR_CM(x) (((x)&0x03)<<6) /* CM bits */
83 #define UART_UMR_PM_MULTI_ADDR (0x1C)
84 #define UART_UMR_PM_MULTI_DATA (0x18)
85 #define UART_UMR_PM_NONE (0x10)
86 #define UART_UMR_PM_FORCE_HI (0x0C)
87 #define UART_UMR_PM_FORCE_LO (0x08)
88 #define UART_UMR_PM_ODD (0x04)
89 #define UART_UMR_PM_EVEN (0x00)
90 #define UART_UMR_BC_5 (0x00)
91 #define UART_UMR_BC_6 (0x01)
92 #define UART_UMR_BC_7 (0x02)
93 #define UART_UMR_BC_8 (0x03)
94 #define UART_UMR_CM_NORMAL (0x00)
95 #define UART_UMR_CM_ECH (0x40)
96 #define UART_UMR_CM_LOCAL_LOOP (0x80)
97 #define UART_UMR_CM_REMOTE_LOOP (0xC0)
98 #define UART_UMR_SB_STOP_BITS_1 (0x07)
99 #define UART_UMR_SB_STOP_BITS_15 (0x08)
100 #define UART_UMR_SB_STOP_BITS_2 (0x0F)
102 /* Bit definitions and macros for USR */
103 #define UART_USR_RXRDY (0x01)
104 #define UART_USR_FFULL (0x02)
105 #define UART_USR_TXRDY (0x04)
106 #define UART_USR_TXEMP (0x08)
107 #define UART_USR_OE (0x10)
108 #define UART_USR_PE (0x20)
109 #define UART_USR_FE (0x40)
110 #define UART_USR_RB (0x80)
112 /* Bit definitions and macros for UCSR */
113 #define UART_UCSR_TCS(x) (((x)&0x0F))
114 #define UART_UCSR_RCS(x) (((x)&0x0F)<<4)
115 #define UART_UCSR_RCS_SYS_CLK (0xD0)
116 #define UART_UCSR_RCS_CTM16 (0xE0)
117 #define UART_UCSR_RCS_CTM (0xF0)
118 #define UART_UCSR_TCS_SYS_CLK (0x0D)
119 #define UART_UCSR_TCS_CTM16 (0x0E)
120 #define UART_UCSR_TCS_CTM (0x0F)
122 /* Bit definitions and macros for UCR */
123 #define UART_UCR_RXC(x) (((x)&0x03))
124 #define UART_UCR_TXC(x) (((x)&0x03)<<2)
125 #define UART_UCR_MISC(x) (((x)&0x07)<<4)
126 #define UART_UCR_NONE (0x00)
127 #define UART_UCR_STOP_BREAK (0x70)
128 #define UART_UCR_START_BREAK (0x60)
129 #define UART_UCR_BKCHGINT (0x50)
130 #define UART_UCR_RESET_ERROR (0x40)
131 #define UART_UCR_RESET_TX (0x30)
132 #define UART_UCR_RESET_RX (0x20)
133 #define UART_UCR_RESET_MR (0x10)
134 #define UART_UCR_TX_DISABLED (0x08)
135 #define UART_UCR_TX_ENABLED (0x04)
136 #define UART_UCR_RX_DISABLED (0x02)
137 #define UART_UCR_RX_ENABLED (0x01)
139 /* Bit definitions and macros for UIPCR */
140 #define UART_UIPCR_CTS (0x01)
141 #define UART_UIPCR_COS (0x10)
143 /* Bit definitions and macros for UACR */
144 #define UART_UACR_IEC (0x01)
146 /* Bit definitions and macros for UIMR */
147 #define UART_UIMR_TXRDY (0x01)
148 #define UART_UIMR_RXRDY_FU (0x02)
149 #define UART_UIMR_DB (0x04)
150 #define UART_UIMR_COS (0x80)
152 /* Bit definitions and macros for UISR */
153 #define UART_UISR_TXRDY (0x01)
154 #define UART_UISR_RXRDY_FU (0x02)
155 #define UART_UISR_DB (0x04)
156 #define UART_UISR_RXFTO (0x08)
157 #define UART_UISR_TXFIFO (0x10)
158 #define UART_UISR_RXFIFO (0x20)
159 #define UART_UISR_COS (0x80)
161 /* Bit definitions and macros for UIP */
162 #define UART_UIP_CTS (0x01)
164 /* Bit definitions and macros for UOP1 */
165 #define UART_UOP1_RTS (0x01)
167 /* Bit definitions and macros for UOP0 */
168 #define UART_UOP0_RTS (0x01)
170 /****************************************************************************/
171 #endif /* mcfuart_h */