include/linux/serial_s3c.h

   1 /*
   2  *  Internal header file for Samsung S3C2410 serial ports (UART0-2)
   3  *
   4  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   5  *
   6  *  Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk)
   7  *
   8  *  Adapted from:
   9  *
  10  *  Internal header file for MX1ADS serial ports (UART1 & 2)
  11  *
  12  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  27 */
  28
  29 #ifndef __ASM_ARM_REGS_SERIAL_H
  30 #define __ASM_ARM_REGS_SERIAL_H
  31
  32 #define S3C2410_URXH      (0x24)
  33 #define S3C2410_UTXH      (0x20)
  34 #define S3C2410_ULCON     (0x00)
  35 #define S3C2410_UCON      (0x04)
  36 #define S3C2410_UFCON     (0x08)
  37 #define S3C2410_UMCON     (0x0C)
  38 #define S3C2410_UBRDIV    (0x28)
  39 #define S3C2410_UTRSTAT   (0x10)
  40 #define S3C2410_UERSTAT   (0x14)
  41 #define S3C2410_UFSTAT    (0x18)
  42 #define S3C2410_UMSTAT    (0x1C)
  43
  44 #define S3C2410_LCON_CFGMASK      ((0xF<<3)|(0x3))
  45
  46 #define S3C2410_LCON_CS5          (0x0)
  47 #define S3C2410_LCON_CS6          (0x1)
  48 #define S3C2410_LCON_CS7          (0x2)
  49 #define S3C2410_LCON_CS8          (0x3)
  50 #define S3C2410_LCON_CSMASK       (0x3)
  51
  52 #define S3C2410_LCON_PNONE        (0x0)
  53 #define S3C2410_LCON_PEVEN        (0x5 << 3)
  54 #define S3C2410_LCON_PODD         (0x4 << 3)
  55 #define S3C2410_LCON_PMASK        (0x7 << 3)
  56
  57 #define S3C2410_LCON_STOPB        (1<<2)
  58 #define S3C2410_LCON_IRM          (1<<6)
  59
  60 #define S3C2440_UCON_CLKMASK      (3<<10)
  61 #define S3C2440_UCON_CLKSHIFT     (10)
  62 #define S3C2440_UCON_PCLK         (0<<10)
  63 #define S3C2440_UCON_UCLK         (1<<10)
  64 #define S3C2440_UCON_PCLK2        (2<<10)
  65 #define S3C2440_UCON_FCLK         (3<<10)
  66 #define S3C2443_UCON_EPLL         (3<<10)
  67
  68 #define S3C6400_UCON_CLKMASK    (3<<10)
  69 #define S3C6400_UCON_CLKSHIFT   (10)
  70 #define S3C6400_UCON_PCLK       (0<<10)
  71 #define S3C6400_UCON_PCLK2      (2<<10)
  72 #define S3C6400_UCON_UCLK0      (1<<10)
  73 #define S3C6400_UCON_UCLK1      (3<<10)
  74
  75 #define S3C2440_UCON2_FCLK_EN     (1<<15)
  76 #define S3C2440_UCON0_DIVMASK     (15 << 12)
  77 #define S3C2440_UCON1_DIVMASK     (15 << 12)
  78 #define S3C2440_UCON2_DIVMASK     (7 << 12)
  79 #define S3C2440_UCON_DIVSHIFT     (12)
  80
  81 #define S3C2412_UCON_CLKMASK    (3<<10)
  82 #define S3C2412_UCON_CLKSHIFT   (10)
  83 #define S3C2412_UCON_UCLK       (1<<10)
  84 #define S3C2412_UCON_USYSCLK    (3<<10)
  85 #define S3C2412_UCON_PCLK       (0<<10)
  86 #define S3C2412_UCON_PCLK2      (2<<10)
  87
  88 #define S3C2410_UCON_CLKMASK    (1 << 10)
  89 #define S3C2410_UCON_CLKSHIFT   (10)
  90 #define S3C2410_UCON_UCLK         (1<<10)
  91 #define S3C2410_UCON_SBREAK       (1<<4)
  92
  93 #define S3C2410_UCON_TXILEVEL     (1<<9)
  94 #define S3C2410_UCON_RXILEVEL     (1<<8)
  95 #define S3C2410_UCON_TXIRQMODE    (1<<2)
  96 #define S3C2410_UCON_RXIRQMODE    (1<<0)
  97 #define S3C2410_UCON_RXFIFO_TOI   (1<<7)
  98 #define S3C2443_UCON_RXERR_IRQEN  (1<<6)
  99 #define S3C2443_UCON_LOOPBACK     (1<<5)
 100
 101 #define S3C2410_UCON_DEFAULT      (S3C2410_UCON_TXILEVEL  | \
 102                                    S3C2410_UCON_RXILEVEL  | \
 103                                    S3C2410_UCON_TXIRQMODE | \
 104                                    S3C2410_UCON_RXIRQMODE | \
 105                                    S3C2410_UCON_RXFIFO_TOI)
 106
 107 #define S3C2410_UFCON_FIFOMODE    (1<<0)
 108 #define S3C2410_UFCON_TXTRIG0     (0<<6)
 109 #define S3C2410_UFCON_RXTRIG8     (1<<4)
 110 #define S3C2410_UFCON_RXTRIG12    (2<<4)
 111
 112 /* S3C2440 FIFO trigger levels */
 113 #define S3C2440_UFCON_RXTRIG1     (0<<4)
 114 #define S3C2440_UFCON_RXTRIG8     (1<<4)
 115 #define S3C2440_UFCON_RXTRIG16    (2<<4)
 116 #define S3C2440_UFCON_RXTRIG32    (3<<4)
 117
 118 #define S3C2440_UFCON_TXTRIG0     (0<<6)
 119 #define S3C2440_UFCON_TXTRIG16    (1<<6)
 120 #define S3C2440_UFCON_TXTRIG32    (2<<6)
 121 #define S3C2440_UFCON_TXTRIG48    (3<<6)
 122
 123 #define S3C2410_UFCON_RESETBOTH   (3<<1)
 124 #define S3C2410_UFCON_RESETTX     (1<<2)
 125 #define S3C2410_UFCON_RESETRX     (1<<1)
 126
 127 #define S3C2410_UFCON_DEFAULT     (S3C2410_UFCON_FIFOMODE | \
 128                                    S3C2410_UFCON_TXTRIG0  | \
 129                                    S3C2410_UFCON_RXTRIG8 )
 130
 131 #define S3C2410_UMCOM_AFC         (1<<4)
 132 #define S3C2410_UMCOM_RTS_LOW     (1<<0)
 133
 134 #define S3C2412_UMCON_AFC_63    (0<<5)          /* same as s3c2443 */
 135 #define S3C2412_UMCON_AFC_56    (1<<5)
 136 #define S3C2412_UMCON_AFC_48    (2<<5)
 137 #define S3C2412_UMCON_AFC_40    (3<<5)
 138 #define S3C2412_UMCON_AFC_32    (4<<5)
 139 #define S3C2412_UMCON_AFC_24    (5<<5)
 140 #define S3C2412_UMCON_AFC_16    (6<<5)
 141 #define S3C2412_UMCON_AFC_8     (7<<5)
 142
 143 #define S3C2410_UFSTAT_TXFULL     (1<<9)
 144 #define S3C2410_UFSTAT_RXFULL     (1<<8)
 145 #define S3C2410_UFSTAT_TXMASK     (15<<4)
 146 #define S3C2410_UFSTAT_TXSHIFT    (4)
 147 #define S3C2410_UFSTAT_RXMASK     (15<<0)
 148 #define S3C2410_UFSTAT_RXSHIFT    (0)
 149
 150 /* UFSTAT S3C2443 same as S3C2440 */
 151 #define S3C2440_UFSTAT_TXFULL     (1<<14)
 152 #define S3C2440_UFSTAT_RXFULL     (1<<6)
 153 #define S3C2440_UFSTAT_TXSHIFT    (8)
 154 #define S3C2440_UFSTAT_RXSHIFT    (0)
 155 #define S3C2440_UFSTAT_TXMASK     (63<<8)
 156 #define S3C2440_UFSTAT_RXMASK     (63)
 157
 158 #define S3C2410_UTRSTAT_TXE       (1<<2)
 159 #define S3C2410_UTRSTAT_TXFE      (1<<1)
 160 #define S3C2410_UTRSTAT_RXDR      (1<<0)
 161
 162 #define S3C2410_UERSTAT_OVERRUN   (1<<0)
 163 #define S3C2410_UERSTAT_FRAME     (1<<2)
 164 #define S3C2410_UERSTAT_BREAK     (1<<3)
 165 #define S3C2443_UERSTAT_PARITY    (1<<1)
 166
 167 #define S3C2410_UERSTAT_ANY       (S3C2410_UERSTAT_OVERRUN | \
 168                                    S3C2410_UERSTAT_FRAME | \
 169                                    S3C2410_UERSTAT_BREAK)
 170
 171 #define S3C2410_UMSTAT_CTS        (1<<0)
 172 #define S3C2410_UMSTAT_DeltaCTS   (1<<2)
 173
 174 #define S3C2443_DIVSLOT           (0x2C)
 175
 176 /* S3C64XX interrupt registers. */
 177 #define S3C64XX_UINTP           0x30
 178 #define S3C64XX_UINTSP          0x34
 179 #define S3C64XX_UINTM           0x38
 180
 181 #define S3C64XX_UINTM_RXD       (0)
 182 #define S3C64XX_UINTM_TXD       (2)
 183 #define S3C64XX_UINTM_RXD_MSK   (1 << S3C64XX_UINTM_RXD)
 184 #define S3C64XX_UINTM_TXD_MSK   (1 << S3C64XX_UINTM_TXD)
 185
 186 /* Following are specific to S5PV210 */
 187 #define S5PV210_UCON_CLKMASK    (1<<10)
 188 #define S5PV210_UCON_CLKSHIFT   (10)
 189 #define S5PV210_UCON_PCLK       (0<<10)
 190 #define S5PV210_UCON_UCLK       (1<<10)
 191
 192 #define S5PV210_UFCON_TXTRIG0   (0<<8)
 193 #define S5PV210_UFCON_TXTRIG4   (1<<8)
 194 #define S5PV210_UFCON_TXTRIG8   (2<<8)
 195 #define S5PV210_UFCON_TXTRIG16  (3<<8)
 196 #define S5PV210_UFCON_TXTRIG32  (4<<8)
 197 #define S5PV210_UFCON_TXTRIG64  (5<<8)
 198 #define S5PV210_UFCON_TXTRIG128 (6<<8)
 199 #define S5PV210_UFCON_TXTRIG256 (7<<8)
 200
 201 #define S5PV210_UFCON_RXTRIG1   (0<<4)
 202 #define S5PV210_UFCON_RXTRIG4   (1<<4)
 203 #define S5PV210_UFCON_RXTRIG8   (2<<4)
 204 #define S5PV210_UFCON_RXTRIG16  (3<<4)
 205 #define S5PV210_UFCON_RXTRIG32  (4<<4)
 206 #define S5PV210_UFCON_RXTRIG64  (5<<4)
 207 #define S5PV210_UFCON_RXTRIG128 (6<<4)
 208 #define S5PV210_UFCON_RXTRIG256 (7<<4)
 209
 210 #define S5PV210_UFSTAT_TXFULL   (1<<24)
 211 #define S5PV210_UFSTAT_RXFULL   (1<<8)
 212 #define S5PV210_UFSTAT_TXMASK   (255<<16)
 213 #define S5PV210_UFSTAT_TXSHIFT  (16)
 214 #define S5PV210_UFSTAT_RXMASK   (255<<0)
 215 #define S5PV210_UFSTAT_RXSHIFT  (0)
 216
 217 #define S3C2410_UCON_CLKSEL0    (1 << 0)
 218 #define S3C2410_UCON_CLKSEL1    (1 << 1)
 219 #define S3C2410_UCON_CLKSEL2    (1 << 2)
 220 #define S3C2410_UCON_CLKSEL3    (1 << 3)
 221
 222 /* Default values for s5pv210 UCON and UFCON uart registers */
 223 #define S5PV210_UCON_DEFAULT    (S3C2410_UCON_TXILEVEL |        \
 224                                  S3C2410_UCON_RXILEVEL |        \
 225                                  S3C2410_UCON_TXIRQMODE |       \
 226                                  S3C2410_UCON_RXIRQMODE |       \
 227                                  S3C2410_UCON_RXFIFO_TOI |      \
 228                                  S3C2443_UCON_RXERR_IRQEN)
 229
 230 #define S5PV210_UFCON_DEFAULT   (S3C2410_UFCON_FIFOMODE |       \
 231                                  S5PV210_UFCON_TXTRIG4 |        \
 232                                  S5PV210_UFCON_RXTRIG4)
 233
 234 #ifndef __ASSEMBLY__
 235
 236 /* configuration structure for per-machine configurations for the
 237  * serial port
 238  *
 239  * the pointer is setup by the machine specific initialisation from the
 240  * arch/arm/mach-s3c2410/ directory.
 241 */
 242
 243 struct s3c2410_uartcfg {
 244         unsigned char      hwport;       /* hardware port number */
 245         unsigned char      unused;
 246         unsigned short     flags;
 247         upf_t              uart_flags;   /* default uart flags */
 248         unsigned int       clk_sel;
 249
 250         unsigned int       has_fracval;
 251
 252         unsigned long      ucon;         /* value of ucon for port */
 253         unsigned long      ulcon;        /* value of ulcon for port */
 254         unsigned long      ufcon;        /* value of ufcon for port */
 255 };
 256
 257 #endif /* __ASSEMBLY__ */
 258
 259 #endif /* __ASM_ARM_REGS_SERIAL_H */
 260