include/linux/serial_s3c.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  *  Internal header file for Samsung S3C2410 serial ports (UART0-2)
   4  *
   5  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
   6  *
   7  *  Additional defines, Copyright 2003 Simtec Electronics (linux@simtec.co.uk)
   8  *
   9  *  Adapted from:
  10  *
  11  *  Internal header file for MX1ADS serial ports (UART1 & 2)
  12  *
  13  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  14  */
  15
  16 #ifndef __ASM_ARM_REGS_SERIAL_H
  17 #define __ASM_ARM_REGS_SERIAL_H
  18
  19 #define S3C2410_URXH      (0x24)
  20 #define S3C2410_UTXH      (0x20)
  21 #define S3C2410_ULCON     (0x00)
  22 #define S3C2410_UCON      (0x04)
  23 #define S3C2410_UFCON     (0x08)
  24 #define S3C2410_UMCON     (0x0C)
  25 #define S3C2410_UBRDIV    (0x28)
  26 #define S3C2410_UTRSTAT   (0x10)
  27 #define S3C2410_UERSTAT   (0x14)
  28 #define S3C2410_UFSTAT    (0x18)
  29 #define S3C2410_UMSTAT    (0x1C)
  30
  31 #define S3C2410_LCON_CFGMASK      ((0xF<<3)|(0x3))
  32
  33 #define S3C2410_LCON_CS5          (0x0)
  34 #define S3C2410_LCON_CS6          (0x1)
  35 #define S3C2410_LCON_CS7          (0x2)
  36 #define S3C2410_LCON_CS8          (0x3)
  37 #define S3C2410_LCON_CSMASK       (0x3)
  38
  39 #define S3C2410_LCON_PNONE        (0x0)
  40 #define S3C2410_LCON_PEVEN        (0x5 << 3)
  41 #define S3C2410_LCON_PODD         (0x4 << 3)
  42 #define S3C2410_LCON_PMASK        (0x7 << 3)
  43
  44 #define S3C2410_LCON_STOPB        (1<<2)
  45 #define S3C2410_LCON_IRM          (1<<6)
  46
  47 #define S3C2440_UCON_CLKMASK      (3<<10)
  48 #define S3C2440_UCON_CLKSHIFT     (10)
  49 #define S3C2440_UCON_PCLK         (0<<10)
  50 #define S3C2440_UCON_UCLK         (1<<10)
  51 #define S3C2440_UCON_PCLK2        (2<<10)
  52 #define S3C2440_UCON_FCLK         (3<<10)
  53 #define S3C2443_UCON_EPLL         (3<<10)
  54
  55 #define S3C6400_UCON_CLKMASK    (3<<10)
  56 #define S3C6400_UCON_CLKSHIFT   (10)
  57 #define S3C6400_UCON_PCLK       (0<<10)
  58 #define S3C6400_UCON_PCLK2      (2<<10)
  59 #define S3C6400_UCON_UCLK0      (1<<10)
  60 #define S3C6400_UCON_UCLK1      (3<<10)
  61
  62 #define S3C2440_UCON2_FCLK_EN     (1<<15)
  63 #define S3C2440_UCON0_DIVMASK     (15 << 12)
  64 #define S3C2440_UCON1_DIVMASK     (15 << 12)
  65 #define S3C2440_UCON2_DIVMASK     (7 << 12)
  66 #define S3C2440_UCON_DIVSHIFT     (12)
  67
  68 #define S3C2412_UCON_CLKMASK    (3<<10)
  69 #define S3C2412_UCON_CLKSHIFT   (10)
  70 #define S3C2412_UCON_UCLK       (1<<10)
  71 #define S3C2412_UCON_USYSCLK    (3<<10)
  72 #define S3C2412_UCON_PCLK       (0<<10)
  73 #define S3C2412_UCON_PCLK2      (2<<10)
  74
  75 #define S3C2410_UCON_CLKMASK    (1 << 10)
  76 #define S3C2410_UCON_CLKSHIFT   (10)
  77 #define S3C2410_UCON_UCLK         (1<<10)
  78 #define S3C2410_UCON_SBREAK       (1<<4)
  79
  80 #define S3C2410_UCON_TXILEVEL     (1<<9)
  81 #define S3C2410_UCON_RXILEVEL     (1<<8)
  82 #define S3C2410_UCON_TXIRQMODE    (1<<2)
  83 #define S3C2410_UCON_RXIRQMODE    (1<<0)
  84 #define S3C2410_UCON_RXFIFO_TOI   (1<<7)
  85 #define S3C2443_UCON_RXERR_IRQEN  (1<<6)
  86 #define S3C2443_UCON_LOOPBACK     (1<<5)
  87
  88 #define S3C2410_UCON_DEFAULT      (S3C2410_UCON_TXILEVEL  | \
  89                                    S3C2410_UCON_RXILEVEL  | \
  90                                    S3C2410_UCON_TXIRQMODE | \
  91                                    S3C2410_UCON_RXIRQMODE | \
  92                                    S3C2410_UCON_RXFIFO_TOI)
  93
  94 #define S3C64XX_UCON_TXBURST_1          (0<<20)
  95 #define S3C64XX_UCON_TXBURST_4          (1<<20)
  96 #define S3C64XX_UCON_TXBURST_8          (2<<20)
  97 #define S3C64XX_UCON_TXBURST_16         (3<<20)
  98 #define S3C64XX_UCON_TXBURST_MASK       (0xf<<20)
  99 #define S3C64XX_UCON_RXBURST_1          (0<<16)
 100 #define S3C64XX_UCON_RXBURST_4          (1<<16)
 101 #define S3C64XX_UCON_RXBURST_8          (2<<16)
 102 #define S3C64XX_UCON_RXBURST_16         (3<<16)
 103 #define S3C64XX_UCON_RXBURST_MASK       (0xf<<16)
 104 #define S3C64XX_UCON_TIMEOUT_SHIFT      (12)
 105 #define S3C64XX_UCON_TIMEOUT_MASK       (0xf<<12)
 106 #define S3C64XX_UCON_EMPTYINT_EN        (1<<11)
 107 #define S3C64XX_UCON_DMASUS_EN          (1<<10)
 108 #define S3C64XX_UCON_TXINT_LEVEL        (1<<9)
 109 #define S3C64XX_UCON_RXINT_LEVEL        (1<<8)
 110 #define S3C64XX_UCON_TIMEOUT_EN         (1<<7)
 111 #define S3C64XX_UCON_ERRINT_EN          (1<<6)
 112 #define S3C64XX_UCON_TXMODE_DMA         (2<<2)
 113 #define S3C64XX_UCON_TXMODE_CPU         (1<<2)
 114 #define S3C64XX_UCON_TXMODE_MASK        (3<<2)
 115 #define S3C64XX_UCON_RXMODE_DMA         (2<<0)
 116 #define S3C64XX_UCON_RXMODE_CPU         (1<<0)
 117 #define S3C64XX_UCON_RXMODE_MASK        (3<<0)
 118
 119 #define S3C2410_UFCON_FIFOMODE    (1<<0)
 120 #define S3C2410_UFCON_TXTRIG0     (0<<6)
 121 #define S3C2410_UFCON_RXTRIG8     (1<<4)
 122 #define S3C2410_UFCON_RXTRIG12    (2<<4)
 123
 124 /* S3C2440 FIFO trigger levels */
 125 #define S3C2440_UFCON_RXTRIG1     (0<<4)
 126 #define S3C2440_UFCON_RXTRIG8     (1<<4)
 127 #define S3C2440_UFCON_RXTRIG16    (2<<4)
 128 #define S3C2440_UFCON_RXTRIG32    (3<<4)
 129
 130 #define S3C2440_UFCON_TXTRIG0     (0<<6)
 131 #define S3C2440_UFCON_TXTRIG16    (1<<6)
 132 #define S3C2440_UFCON_TXTRIG32    (2<<6)
 133 #define S3C2440_UFCON_TXTRIG48    (3<<6)
 134
 135 #define S3C2410_UFCON_RESETBOTH   (3<<1)
 136 #define S3C2410_UFCON_RESETTX     (1<<2)
 137 #define S3C2410_UFCON_RESETRX     (1<<1)
 138
 139 #define S3C2410_UFCON_DEFAULT     (S3C2410_UFCON_FIFOMODE | \
 140                                    S3C2410_UFCON_TXTRIG0  | \
 141                                    S3C2410_UFCON_RXTRIG8 )
 142
 143 #define S3C2410_UMCOM_AFC         (1<<4)
 144 #define S3C2410_UMCOM_RTS_LOW     (1<<0)
 145
 146 #define S3C2412_UMCON_AFC_63    (0<<5)          /* same as s3c2443 */
 147 #define S3C2412_UMCON_AFC_56    (1<<5)
 148 #define S3C2412_UMCON_AFC_48    (2<<5)
 149 #define S3C2412_UMCON_AFC_40    (3<<5)
 150 #define S3C2412_UMCON_AFC_32    (4<<5)
 151 #define S3C2412_UMCON_AFC_24    (5<<5)
 152 #define S3C2412_UMCON_AFC_16    (6<<5)
 153 #define S3C2412_UMCON_AFC_8     (7<<5)
 154
 155 #define S3C2410_UFSTAT_TXFULL     (1<<9)
 156 #define S3C2410_UFSTAT_RXFULL     (1<<8)
 157 #define S3C2410_UFSTAT_TXMASK     (15<<4)
 158 #define S3C2410_UFSTAT_TXSHIFT    (4)
 159 #define S3C2410_UFSTAT_RXMASK     (15<<0)
 160 #define S3C2410_UFSTAT_RXSHIFT    (0)
 161
 162 /* UFSTAT S3C2443 same as S3C2440 */
 163 #define S3C2440_UFSTAT_TXFULL     (1<<14)
 164 #define S3C2440_UFSTAT_RXFULL     (1<<6)
 165 #define S3C2440_UFSTAT_TXSHIFT    (8)
 166 #define S3C2440_UFSTAT_RXSHIFT    (0)
 167 #define S3C2440_UFSTAT_TXMASK     (63<<8)
 168 #define S3C2440_UFSTAT_RXMASK     (63)
 169
 170 #define S3C2410_UTRSTAT_TIMEOUT   (1<<3)
 171 #define S3C2410_UTRSTAT_TXE       (1<<2)
 172 #define S3C2410_UTRSTAT_TXFE      (1<<1)
 173 #define S3C2410_UTRSTAT_RXDR      (1<<0)
 174
 175 #define S3C2410_UERSTAT_OVERRUN   (1<<0)
 176 #define S3C2410_UERSTAT_FRAME     (1<<2)
 177 #define S3C2410_UERSTAT_BREAK     (1<<3)
 178 #define S3C2443_UERSTAT_PARITY    (1<<1)
 179
 180 #define S3C2410_UERSTAT_ANY       (S3C2410_UERSTAT_OVERRUN | \
 181                                    S3C2410_UERSTAT_FRAME | \
 182                                    S3C2410_UERSTAT_BREAK)
 183
 184 #define S3C2410_UMSTAT_CTS        (1<<0)
 185 #define S3C2410_UMSTAT_DeltaCTS   (1<<2)
 186
 187 #define S3C2443_DIVSLOT           (0x2C)
 188
 189 /* S3C64XX interrupt registers. */
 190 #define S3C64XX_UINTP           0x30
 191 #define S3C64XX_UINTSP          0x34
 192 #define S3C64XX_UINTM           0x38
 193
 194 #define S3C64XX_UINTM_RXD       (0)
 195 #define S3C64XX_UINTM_ERROR     (1)
 196 #define S3C64XX_UINTM_TXD       (2)
 197 #define S3C64XX_UINTM_RXD_MSK   (1 << S3C64XX_UINTM_RXD)
 198 #define S3C64XX_UINTM_ERR_MSK   (1 << S3C64XX_UINTM_ERROR)
 199 #define S3C64XX_UINTM_TXD_MSK   (1 << S3C64XX_UINTM_TXD)
 200
 201 /* Following are specific to S5PV210 */
 202 #define S5PV210_UCON_CLKMASK    (1<<10)
 203 #define S5PV210_UCON_CLKSHIFT   (10)
 204 #define S5PV210_UCON_PCLK       (0<<10)
 205 #define S5PV210_UCON_UCLK       (1<<10)
 206
 207 #define S5PV210_UFCON_TXTRIG0   (0<<8)
 208 #define S5PV210_UFCON_TXTRIG4   (1<<8)
 209 #define S5PV210_UFCON_TXTRIG8   (2<<8)
 210 #define S5PV210_UFCON_TXTRIG16  (3<<8)
 211 #define S5PV210_UFCON_TXTRIG32  (4<<8)
 212 #define S5PV210_UFCON_TXTRIG64  (5<<8)
 213 #define S5PV210_UFCON_TXTRIG128 (6<<8)
 214 #define S5PV210_UFCON_TXTRIG256 (7<<8)
 215
 216 #define S5PV210_UFCON_RXTRIG1   (0<<4)
 217 #define S5PV210_UFCON_RXTRIG4   (1<<4)
 218 #define S5PV210_UFCON_RXTRIG8   (2<<4)
 219 #define S5PV210_UFCON_RXTRIG16  (3<<4)
 220 #define S5PV210_UFCON_RXTRIG32  (4<<4)
 221 #define S5PV210_UFCON_RXTRIG64  (5<<4)
 222 #define S5PV210_UFCON_RXTRIG128 (6<<4)
 223 #define S5PV210_UFCON_RXTRIG256 (7<<4)
 224
 225 #define S5PV210_UFSTAT_TXFULL   (1<<24)
 226 #define S5PV210_UFSTAT_RXFULL   (1<<8)
 227 #define S5PV210_UFSTAT_TXMASK   (255<<16)
 228 #define S5PV210_UFSTAT_TXSHIFT  (16)
 229 #define S5PV210_UFSTAT_RXMASK   (255<<0)
 230 #define S5PV210_UFSTAT_RXSHIFT  (0)
 231
 232 #define S3C2410_UCON_CLKSEL0    (1 << 0)
 233 #define S3C2410_UCON_CLKSEL1    (1 << 1)
 234 #define S3C2410_UCON_CLKSEL2    (1 << 2)
 235 #define S3C2410_UCON_CLKSEL3    (1 << 3)
 236
 237 /* Default values for s5pv210 UCON and UFCON uart registers */
 238 #define S5PV210_UCON_DEFAULT    (S3C2410_UCON_TXILEVEL |        \
 239                                  S3C2410_UCON_RXILEVEL |        \
 240                                  S3C2410_UCON_TXIRQMODE |       \
 241                                  S3C2410_UCON_RXIRQMODE |       \
 242                                  S3C2410_UCON_RXFIFO_TOI |      \
 243                                  S3C2443_UCON_RXERR_IRQEN)
 244
 245 #define S5PV210_UFCON_DEFAULT   (S3C2410_UFCON_FIFOMODE |       \
 246                                  S5PV210_UFCON_TXTRIG4 |        \
 247                                  S5PV210_UFCON_RXTRIG4)
 248
 249 #ifndef __ASSEMBLY__
 250
 251 #include <linux/serial_core.h>
 252
 253 /* configuration structure for per-machine configurations for the
 254  * serial port
 255  *
 256  * the pointer is setup by the machine specific initialisation from the
 257  * arch/arm/mach-s3c2410/ directory.
 258 */
 259
 260 struct s3c2410_uartcfg {
 261         unsigned char      hwport;       /* hardware port number */
 262         unsigned char      unused;
 263         unsigned short     flags;
 264         upf_t              uart_flags;   /* default uart flags */
 265         unsigned int       clk_sel;
 266
 267         unsigned int       has_fracval;
 268
 269         unsigned long      ucon;         /* value of ucon for port */
 270         unsigned long      ulcon;        /* value of ulcon for port */
 271         unsigned long      ufcon;        /* value of ufcon for port */
 272 };
 273
 274 #endif /* __ASSEMBLY__ */
 275
 276 #endif /* __ASM_ARM_REGS_SERIAL_H */
 277