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 /* "" 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
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