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1da177e4 LT |
1 | /* linux/include/asm-arm/arch-s3c2410/regs-serial.h |
2 | * | |
3 | * From linux/include/asm-arm/hardware/serial_s3c2410.h | |
4 | * | |
5 | * Internal header file for Samsung S3C2410 serial ports (UART0-2) | |
6 | * | |
7 | * Copyright (C) 2002 Shane Nay (shane@minirl.com) | |
8 | * | |
9 | * Additional defines, (c) 2003 Simtec Electronics (linux@simtec.co.uk) | |
10 | * | |
11 | * Adapted from: | |
12 | * | |
13 | * Internal header file for MX1ADS serial ports (UART1 & 2) | |
14 | * | |
15 | * Copyright (C) 2002 Shane Nay (shane@minirl.com) | |
16 | * | |
17 | * This program is free software; you can redistribute it and/or modify | |
18 | * it under the terms of the GNU General Public License as published by | |
19 | * the Free Software Foundation; either version 2 of the License, or | |
20 | * (at your option) any later version. | |
21 | * | |
22 | * This program is distributed in the hope that it will be useful, | |
23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
25 | * GNU General Public License for more details. | |
26 | * | |
27 | * You should have received a copy of the GNU General Public License | |
28 | * along with this program; if not, write to the Free Software | |
29 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
30 | * | |
31 | * Modifications: | |
32 | * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA (s3c2400 support) | |
33 | */ | |
34 | ||
35 | #ifndef __ASM_ARM_REGS_SERIAL_H | |
36 | #define __ASM_ARM_REGS_SERIAL_H | |
37 | ||
38 | #define S3C24XX_VA_UART0 (S3C24XX_VA_UART) | |
39 | #define S3C24XX_VA_UART1 (S3C24XX_VA_UART + 0x4000 ) | |
40 | #define S3C24XX_VA_UART2 (S3C24XX_VA_UART + 0x8000 ) | |
41 | ||
0367a8d3 LCVR |
42 | #define S3C2410_PA_UART0 (S3C24XX_PA_UART) |
43 | #define S3C2410_PA_UART1 (S3C24XX_PA_UART + 0x4000 ) | |
44 | #define S3C2410_PA_UART2 (S3C24XX_PA_UART + 0x8000 ) | |
1da177e4 LT |
45 | |
46 | #define S3C2410_URXH (0x24) | |
47 | #define S3C2410_UTXH (0x20) | |
48 | #define S3C2410_ULCON (0x00) | |
49 | #define S3C2410_UCON (0x04) | |
50 | #define S3C2410_UFCON (0x08) | |
51 | #define S3C2410_UMCON (0x0C) | |
52 | #define S3C2410_UBRDIV (0x28) | |
53 | #define S3C2410_UTRSTAT (0x10) | |
54 | #define S3C2410_UERSTAT (0x14) | |
55 | #define S3C2410_UFSTAT (0x18) | |
56 | #define S3C2410_UMSTAT (0x1C) | |
57 | ||
58 | #define S3C2410_LCON_CFGMASK ((0xF<<3)|(0x3)) | |
59 | ||
60 | #define S3C2410_LCON_CS5 (0x0) | |
61 | #define S3C2410_LCON_CS6 (0x1) | |
62 | #define S3C2410_LCON_CS7 (0x2) | |
63 | #define S3C2410_LCON_CS8 (0x3) | |
64 | #define S3C2410_LCON_CSMASK (0x3) | |
65 | ||
66 | #define S3C2410_LCON_PNONE (0x0) | |
67 | #define S3C2410_LCON_PEVEN (0x5 << 3) | |
68 | #define S3C2410_LCON_PODD (0x4 << 3) | |
69 | #define S3C2410_LCON_PMASK (0x7 << 3) | |
70 | ||
71 | #define S3C2410_LCON_STOPB (1<<2) | |
72 | #define S3C2410_LCON_IRM (1<<6) | |
73 | ||
74 | #define S3C2440_UCON_CLKMASK (3<<10) | |
75 | #define S3C2440_UCON_PCLK (0<<10) | |
76 | #define S3C2440_UCON_UCLK (1<<10) | |
77 | #define S3C2440_UCON_PCLK2 (2<<10) | |
78 | #define S3C2440_UCON_FCLK (3<<10) | |
79 | #define S3C2440_UCON2_FCLK_EN (1<<15) | |
80 | #define S3C2440_UCON0_DIVMASK (15 << 12) | |
81 | #define S3C2440_UCON1_DIVMASK (15 << 12) | |
82 | #define S3C2440_UCON2_DIVMASK (7 << 12) | |
83 | #define S3C2440_UCON_DIVSHIFT (12) | |
84 | ||
85 | #define S3C2410_UCON_UCLK (1<<10) | |
86 | #define S3C2410_UCON_SBREAK (1<<4) | |
87 | ||
88 | #define S3C2410_UCON_TXILEVEL (1<<9) | |
89 | #define S3C2410_UCON_RXILEVEL (1<<8) | |
90 | #define S3C2410_UCON_TXIRQMODE (1<<2) | |
91 | #define S3C2410_UCON_RXIRQMODE (1<<0) | |
92 | #define S3C2410_UCON_RXFIFO_TOI (1<<7) | |
93 | ||
94 | #define S3C2410_UCON_DEFAULT (S3C2410_UCON_TXILEVEL | \ | |
95 | S3C2410_UCON_RXILEVEL | \ | |
96 | S3C2410_UCON_TXIRQMODE | \ | |
97 | S3C2410_UCON_RXIRQMODE | \ | |
98 | S3C2410_UCON_RXFIFO_TOI) | |
99 | ||
100 | #define S3C2410_UFCON_FIFOMODE (1<<0) | |
101 | #define S3C2410_UFCON_TXTRIG0 (0<<6) | |
102 | #define S3C2410_UFCON_RXTRIG8 (1<<4) | |
103 | #define S3C2410_UFCON_RXTRIG12 (2<<4) | |
104 | ||
105 | /* S3C2440 FIFO trigger levels */ | |
106 | #define S3C2440_UFCON_RXTRIG1 (0<<4) | |
107 | #define S3C2440_UFCON_RXTRIG8 (1<<4) | |
108 | #define S3C2440_UFCON_RXTRIG16 (2<<4) | |
109 | #define S3C2440_UFCON_RXTRIG32 (3<<4) | |
110 | ||
111 | #define S3C2440_UFCON_TXTRIG0 (0<<6) | |
112 | #define S3C2440_UFCON_TXTRIG16 (1<<6) | |
113 | #define S3C2440_UFCON_TXTRIG32 (2<<6) | |
114 | #define S3C2440_UFCON_TXTRIG48 (3<<6) | |
115 | ||
116 | #define S3C2410_UFCON_RESETBOTH (3<<1) | |
117 | #define S3C2410_UFCON_RESETTX (1<<2) | |
118 | #define S3C2410_UFCON_RESETRX (1<<1) | |
119 | ||
120 | #define S3C2410_UFCON_DEFAULT (S3C2410_UFCON_FIFOMODE | \ | |
121 | S3C2410_UFCON_TXTRIG0 | \ | |
122 | S3C2410_UFCON_RXTRIG8 ) | |
123 | ||
124 | #define S3C2410_UMCOM_AFC (1<<4) | |
125 | #define S3C2410_UMCOM_RTS_LOW (1<<0) | |
126 | ||
127 | #define S3C2410_UFSTAT_TXFULL (1<<9) | |
128 | #define S3C2410_UFSTAT_RXFULL (1<<8) | |
129 | #define S3C2410_UFSTAT_TXMASK (15<<4) | |
130 | #define S3C2410_UFSTAT_TXSHIFT (4) | |
131 | #define S3C2410_UFSTAT_RXMASK (15<<0) | |
132 | #define S3C2410_UFSTAT_RXSHIFT (0) | |
133 | ||
134 | #define S3C2440_UFSTAT_TXFULL (1<<14) | |
135 | #define S3C2440_UFSTAT_RXFULL (1<<6) | |
136 | #define S3C2440_UFSTAT_TXSHIFT (8) | |
137 | #define S3C2440_UFSTAT_RXSHIFT (0) | |
138 | #define S3C2440_UFSTAT_TXMASK (63<<8) | |
139 | #define S3C2440_UFSTAT_RXMASK (63) | |
140 | ||
141 | #define S3C2410_UTRSTAT_TXE (1<<2) | |
142 | #define S3C2410_UTRSTAT_TXFE (1<<1) | |
143 | #define S3C2410_UTRSTAT_RXDR (1<<0) | |
144 | ||
145 | #define S3C2410_UERSTAT_OVERRUN (1<<0) | |
146 | #define S3C2410_UERSTAT_FRAME (1<<2) | |
147 | #define S3C2410_UERSTAT_BREAK (1<<3) | |
148 | #define S3C2410_UERSTAT_ANY (S3C2410_UERSTAT_OVERRUN | \ | |
149 | S3C2410_UERSTAT_FRAME | \ | |
150 | S3C2410_UERSTAT_BREAK) | |
151 | ||
152 | #define S3C2410_UMSTAT_CTS (1<<0) | |
153 | #define S3C2410_UMSTAT_DeltaCTS (1<<2) | |
154 | ||
155 | #ifndef __ASSEMBLY__ | |
156 | ||
157 | /* struct s3c24xx_uart_clksrc | |
158 | * | |
159 | * this structure defines a named clock source that can be used for the | |
160 | * uart, so that the best clock can be selected for the requested baud | |
161 | * rate. | |
162 | * | |
163 | * min_baud and max_baud define the range of baud-rates this clock is | |
164 | * acceptable for, if they are both zero, it is assumed any baud rate that | |
165 | * can be generated from this clock will be used. | |
166 | * | |
167 | * divisor gives the divisor from the clock to the one seen by the uart | |
168 | */ | |
169 | ||
170 | struct s3c24xx_uart_clksrc { | |
171 | const char *name; | |
172 | unsigned int divisor; | |
173 | unsigned int min_baud; | |
174 | unsigned int max_baud; | |
175 | }; | |
176 | ||
177 | /* configuration structure for per-machine configurations for the | |
178 | * serial port | |
179 | * | |
180 | * the pointer is setup by the machine specific initialisation from the | |
181 | * arch/arm/mach-s3c2410/ directory. | |
182 | */ | |
183 | ||
184 | struct s3c2410_uartcfg { | |
185 | unsigned char hwport; /* hardware port number */ | |
186 | unsigned char unused; | |
187 | unsigned short flags; | |
188 | unsigned long uart_flags; /* default uart flags */ | |
189 | ||
190 | unsigned long ucon; /* value of ucon for port */ | |
191 | unsigned long ulcon; /* value of ulcon for port */ | |
192 | unsigned long ufcon; /* value of ufcon for port */ | |
193 | ||
194 | struct s3c24xx_uart_clksrc *clocks; | |
195 | unsigned int clocks_size; | |
196 | }; | |
197 | ||
198 | /* s3c24xx_uart_devs | |
199 | * | |
200 | * this is exported from the core as we cannot use driver_register(), | |
201 | * or platform_add_device() before the console_initcall() | |
202 | */ | |
203 | ||
204 | extern struct platform_device *s3c24xx_uart_devs[3]; | |
205 | ||
206 | #endif /* __ASSEMBLY__ */ | |
207 | ||
208 | #endif /* __ASM_ARM_REGS_SERIAL_H */ | |
209 |