arch/sh/include/asm/smc37c93x.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __ASM_SH_SMC37C93X_H
   3 #define __ASM_SH_SMC37C93X_H
   4
   5 /*
   6  * linux/include/asm-sh/smc37c93x.h
   7  *
   8  * Copyright (C) 2000  Kazumoto Kojima
   9  *
  10  * SMSC 37C93x Super IO Chip support
  11  */
  12
  13 /* Default base I/O address */
  14 #define FDC_PRIMARY_BASE        0x3f0
  15 #define IDE1_PRIMARY_BASE       0x1f0
  16 #define IDE1_SECONDARY_BASE     0x170
  17 #define PARPORT_PRIMARY_BASE    0x378
  18 #define COM1_PRIMARY_BASE       0x2f8
  19 #define COM2_PRIMARY_BASE       0x3f8
  20 #define RTC_PRIMARY_BASE        0x070
  21 #define KBC_PRIMARY_BASE        0x060
  22 #define AUXIO_PRIMARY_BASE      0x000   /* XXX */
  23
  24 /* Logical device number */
  25 #define LDN_FDC                 0
  26 #define LDN_IDE1                1
  27 #define LDN_IDE2                2
  28 #define LDN_PARPORT             3
  29 #define LDN_COM1                4
  30 #define LDN_COM2                5
  31 #define LDN_RTC                 6
  32 #define LDN_KBC                 7
  33 #define LDN_AUXIO               8
  34
  35 /* Configuration port and key */
  36 #define CONFIG_PORT             0x3f0
  37 #define INDEX_PORT              CONFIG_PORT
  38 #define DATA_PORT               0x3f1
  39 #define CONFIG_ENTER            0x55
  40 #define CONFIG_EXIT             0xaa
  41
  42 /* Configuration index */
  43 #define CURRENT_LDN_INDEX       0x07
  44 #define POWER_CONTROL_INDEX     0x22
  45 #define ACTIVATE_INDEX          0x30
  46 #define IO_BASE_HI_INDEX        0x60
  47 #define IO_BASE_LO_INDEX        0x61
  48 #define IRQ_SELECT_INDEX        0x70
  49 #define DMA_SELECT_INDEX        0x74
  50
  51 #define GPIO46_INDEX            0xc6
  52 #define GPIO47_INDEX            0xc7
  53
  54 /* UART stuff. Only for debugging.  */
  55 /* UART Register */
  56
  57 #define UART_RBR        0x0     /* Receiver Buffer Register (Read Only) */
  58 #define UART_THR        0x0     /* Transmitter Holding Register (Write Only) */
  59 #define UART_IER        0x2     /* Interrupt Enable Register */
  60 #define UART_IIR        0x4     /* Interrupt Ident Register (Read Only) */
  61 #define UART_FCR        0x4     /* FIFO Control Register (Write Only) */
  62 #define UART_LCR        0x6     /* Line Control Register */
  63 #define UART_MCR        0x8     /* MODEM Control Register */
  64 #define UART_LSR        0xa     /* Line Status Register */
  65 #define UART_MSR        0xc     /* MODEM Status Register */
  66 #define UART_SCR        0xe     /* Scratch Register */
  67 #define UART_DLL        0x0     /* Divisor Latch (LS) */
  68 #define UART_DLM        0x2     /* Divisor Latch (MS) */
  69
  70 #ifndef __ASSEMBLY__
  71 typedef struct uart_reg {
  72         volatile __u16 rbr;
  73         volatile __u16 ier;
  74         volatile __u16 iir;
  75         volatile __u16 lcr;
  76         volatile __u16 mcr;
  77         volatile __u16 lsr;
  78         volatile __u16 msr;
  79         volatile __u16 scr;
  80 } uart_reg;
  81 #endif /* ! __ASSEMBLY__ */
  82
  83 /* Alias for Write Only Register */
  84
  85 #define thr     rbr
  86 #define tcr     iir
  87
  88 /* Alias for Divisor Latch Register */
  89
  90 #define dll     rbr
  91 #define dlm     ier
  92 #define fcr     iir
  93
  94 /* Interrupt Enable Register */
  95
  96 #define IER_ERDAI       0x0100  /* Enable Received Data Available Interrupt */
  97 #define IER_ETHREI      0x0200  /* Enable Transmitter Holding Register Empty Interrupt */
  98 #define IER_ELSI        0x0400  /* Enable Receiver Line Status Interrupt */
  99 #define IER_EMSI        0x0800  /* Enable MODEM Status Interrupt */
 100
 101 /* Interrupt Ident Register */
 102
 103 #define IIR_IP          0x0100  /* "0" if Interrupt Pending */
 104 #define IIR_IIB0        0x0200  /* Interrupt ID Bit 0 */
 105 #define IIR_IIB1        0x0400  /* Interrupt ID Bit 1 */
 106 #define IIR_IIB2        0x0800  /* Interrupt ID Bit 2 */
 107 #define IIR_FIFO        0xc000  /* FIFOs enabled */
 108
 109 /* FIFO Control Register */
 110
 111 #define FCR_FEN         0x0100  /* FIFO enable */
 112 #define FCR_RFRES       0x0200  /* Receiver FIFO reset */
 113 #define FCR_TFRES       0x0400  /* Transmitter FIFO reset */
 114 #define FCR_DMA         0x0800  /* DMA mode select */
 115 #define FCR_RTL         0x4000  /* Receiver trigger (LSB) */
 116 #define FCR_RTM         0x8000  /* Receiver trigger (MSB) */
 117
 118 /* Line Control Register */
 119
 120 #define LCR_WLS0        0x0100  /* Word Length Select Bit 0 */
 121 #define LCR_WLS1        0x0200  /* Word Length Select Bit 1 */
 122 #define LCR_STB         0x0400  /* Number of Stop Bits */
 123 #define LCR_PEN         0x0800  /* Parity Enable */
 124 #define LCR_EPS         0x1000  /* Even Parity Select */
 125 #define LCR_SP          0x2000  /* Stick Parity */
 126 #define LCR_SB          0x4000  /* Set Break */
 127 #define LCR_DLAB        0x8000  /* Divisor Latch Access Bit */
 128
 129 /* MODEM Control Register */
 130
 131 #define MCR_DTR         0x0100  /* Data Terminal Ready */
 132 #define MCR_RTS         0x0200  /* Request to Send */
 133 #define MCR_OUT1        0x0400  /* Out 1 */
 134 #define MCR_IRQEN       0x0800  /* IRQ Enable */
 135 #define MCR_LOOP        0x1000  /* Loop */
 136
 137 /* Line Status Register */
 138
 139 #define LSR_DR          0x0100  /* Data Ready */
 140 #define LSR_OE          0x0200  /* Overrun Error */
 141 #define LSR_PE          0x0400  /* Parity Error */
 142 #define LSR_FE          0x0800  /* Framing Error */
 143 #define LSR_BI          0x1000  /* Break Interrupt */
 144 #define LSR_THRE        0x2000  /* Transmitter Holding Register Empty */
 145 #define LSR_TEMT        0x4000  /* Transmitter Empty */
 146 #define LSR_FIFOE       0x8000  /* Receiver FIFO error */
 147
 148 /* MODEM Status Register */
 149
 150 #define MSR_DCTS        0x0100  /* Delta Clear to Send */
 151 #define MSR_DDSR        0x0200  /* Delta Data Set Ready */
 152 #define MSR_TERI        0x0400  /* Trailing Edge Ring Indicator */
 153 #define MSR_DDCD        0x0800  /* Delta Data Carrier Detect */
 154 #define MSR_CTS         0x1000  /* Clear to Send */
 155 #define MSR_DSR         0x2000  /* Data Set Ready */
 156 #define MSR_RI          0x4000  /* Ring Indicator */
 157 #define MSR_DCD         0x8000  /* Data Carrier Detect */
 158
 159 /* Baud Rate Divisor */
 160
 161 #define UART_CLK        (1843200)       /* 1.8432 MHz */
 162 #define UART_BAUD(x)    (UART_CLK / (16 * (x)))
 163
 164 /* RTC register definition */
 165 #define RTC_SECONDS             0
 166 #define RTC_SECONDS_ALARM       1
 167 #define RTC_MINUTES             2
 168 #define RTC_MINUTES_ALARM       3
 169 #define RTC_HOURS               4
 170 #define RTC_HOURS_ALARM         5
 171 #define RTC_DAY_OF_WEEK         6
 172 #define RTC_DAY_OF_MONTH        7
 173 #define RTC_MONTH               8
 174 #define RTC_YEAR                9
 175 #define RTC_FREQ_SELECT         10
 176 # define RTC_UIP 0x80
 177 # define RTC_DIV_CTL 0x70
 178 /* This RTC can work under 32.768KHz clock only.  */
 179 # define RTC_OSC_ENABLE 0x20
 180 # define RTC_OSC_DISABLE 0x00
 181 #define RTC_CONTROL             11
 182 # define RTC_SET 0x80
 183 # define RTC_PIE 0x40
 184 # define RTC_AIE 0x20
 185 # define RTC_UIE 0x10
 186 # define RTC_SQWE 0x08
 187 # define RTC_DM_BINARY 0x04
 188 # define RTC_24H 0x02
 189 # define RTC_DST_EN 0x01
 190
 191 #endif  /* __ASM_SH_SMC37C93X_H */