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 */ 192