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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_SH_SMC37C93X_H
#define __ASM_SH_SMC37C93X_H
/*
* linux/include/asm-sh/smc37c93x.h
*
* Copyright (C) 2000 Kazumoto Kojima
*
* SMSC 37C93x Super IO Chip support
*/
/* Default base I/O address */
#define FDC_PRIMARY_BASE 0x3f0
#define IDE1_PRIMARY_BASE 0x1f0
#define IDE1_SECONDARY_BASE 0x170
#define PARPORT_PRIMARY_BASE 0x378
#define COM1_PRIMARY_BASE 0x2f8
#define COM2_PRIMARY_BASE 0x3f8
#define RTC_PRIMARY_BASE 0x070
#define KBC_PRIMARY_BASE 0x060
#define AUXIO_PRIMARY_BASE 0x000 /* XXX */
/* Logical device number */
#define LDN_FDC 0
#define LDN_IDE1 1
#define LDN_IDE2 2
#define LDN_PARPORT 3
#define LDN_COM1 4
#define LDN_COM2 5
#define LDN_RTC 6
#define LDN_KBC 7
#define LDN_AUXIO 8
/* Configuration port and key */
#define CONFIG_PORT 0x3f0
#define INDEX_PORT CONFIG_PORT
#define DATA_PORT 0x3f1
#define CONFIG_ENTER 0x55
#define CONFIG_EXIT 0xaa
/* Configuration index */
#define CURRENT_LDN_INDEX 0x07
#define POWER_CONTROL_INDEX 0x22
#define ACTIVATE_INDEX 0x30
#define IO_BASE_HI_INDEX 0x60
#define IO_BASE_LO_INDEX 0x61
#define IRQ_SELECT_INDEX 0x70
#define DMA_SELECT_INDEX 0x74
#define GPIO46_INDEX 0xc6
#define GPIO47_INDEX 0xc7
/* UART stuff. Only for debugging. */
/* UART Register */
#define UART_RBR 0x0 /* Receiver Buffer Register (Read Only) */
#define UART_THR 0x0 /* Transmitter Holding Register (Write Only) */
#define UART_IER 0x2 /* Interrupt Enable Register */
#define UART_IIR 0x4 /* Interrupt Ident Register (Read Only) */
#define UART_FCR 0x4 /* FIFO Control Register (Write Only) */
#define UART_LCR 0x6 /* Line Control Register */
#define UART_MCR 0x8 /* MODEM Control Register */
#define UART_LSR 0xa /* Line Status Register */
#define UART_MSR 0xc /* MODEM Status Register */
#define UART_SCR 0xe /* Scratch Register */
#define UART_DLL 0x0 /* Divisor Latch (LS) */
#define UART_DLM 0x2 /* Divisor Latch (MS) */
#ifndef __ASSEMBLY__
typedef struct uart_reg {
volatile __u16 rbr;
volatile __u16 ier;
volatile __u16 iir;
volatile __u16 lcr;
volatile __u16 mcr;
volatile __u16 lsr;
volatile __u16 msr;
volatile __u16 scr;
} uart_reg;
#endif /* ! __ASSEMBLY__ */
/* Alias for Write Only Register */
#define thr rbr
#define tcr iir
/* Alias for Divisor Latch Register */
#define dll rbr
#define dlm ier
#define fcr iir
/* Interrupt Enable Register */
#define IER_ERDAI 0x0100 /* Enable Received Data Available Interrupt */
#define IER_ETHREI 0x0200 /* Enable Transmitter Holding Register Empty Interrupt */
#define IER_ELSI 0x0400 /* Enable Receiver Line Status Interrupt */
#define IER_EMSI 0x0800 /* Enable MODEM Status Interrupt */
/* Interrupt Ident Register */
#define IIR_IP 0x0100 /* "0" if Interrupt Pending */
#define IIR_IIB0 0x0200 /* Interrupt ID Bit 0 */
#define IIR_IIB1 0x0400 /* Interrupt ID Bit 1 */
#define IIR_IIB2 0x0800 /* Interrupt ID Bit 2 */
#define IIR_FIFO 0xc000 /* FIFOs enabled */
/* FIFO Control Register */
#define FCR_FEN 0x0100 /* FIFO enable */
#define FCR_RFRES 0x0200 /* Receiver FIFO reset */
#define FCR_TFRES 0x0400 /* Transmitter FIFO reset */
#define FCR_DMA 0x0800 /* DMA mode select */
#define FCR_RTL 0x4000 /* Receiver trigger (LSB) */
#define FCR_RTM 0x8000 /* Receiver trigger (MSB) */
/* Line Control Register */
#define LCR_WLS0 0x0100 /* Word Length Select Bit 0 */
#define LCR_WLS1 0x0200 /* Word Length Select Bit 1 */
#define LCR_STB 0x0400 /* Number of Stop Bits */
#define LCR_PEN 0x0800 /* Parity Enable */
#define LCR_EPS 0x1000 /* Even Parity Select */
#define LCR_SP 0x2000 /* Stick Parity */
#define LCR_SB 0x4000 /* Set Break */
#define LCR_DLAB 0x8000 /* Divisor Latch Access Bit */
/* MODEM Control Register */
#define MCR_DTR 0x0100 /* Data Terminal Ready */
#define MCR_RTS 0x0200 /* Request to Send */
#define MCR_OUT1 0x0400 /* Out 1 */
#define MCR_IRQEN 0x0800 /* IRQ Enable */
#define MCR_LOOP 0x1000 /* Loop */
/* Line Status Register */
#define LSR_DR 0x0100 /* Data Ready */
#define LSR_OE 0x0200 /* Overrun Error */
#define LSR_PE 0x0400 /* Parity Error */
#define LSR_FE 0x0800 /* Framing Error */
#define LSR_BI 0x1000 /* Break Interrupt */
#define LSR_THRE 0x2000 /* Transmitter Holding Register Empty */
#define LSR_TEMT 0x4000 /* Transmitter Empty */
#define LSR_FIFOE 0x8000 /* Receiver FIFO error */
/* MODEM Status Register */
#define MSR_DCTS 0x0100 /* Delta Clear to Send */
#define MSR_DDSR 0x0200 /* Delta Data Set Ready */
#define MSR_TERI 0x0400 /* Trailing Edge Ring Indicator */
#define MSR_DDCD 0x0800 /* Delta Data Carrier Detect */
#define MSR_CTS 0x1000 /* Clear to Send */
#define MSR_DSR 0x2000 /* Data Set Ready */
#define MSR_RI 0x4000 /* Ring Indicator */
#define MSR_DCD 0x8000 /* Data Carrier Detect */
/* Baud Rate Divisor */
#define UART_CLK (1843200) /* 1.8432 MHz */
#define UART_BAUD(x) (UART_CLK / (16 * (x)))
/* RTC register definition */
#define RTC_SECONDS 0
#define RTC_SECONDS_ALARM 1
#define RTC_MINUTES 2
#define RTC_MINUTES_ALARM 3
#define RTC_HOURS 4
#define RTC_HOURS_ALARM 5
#define RTC_DAY_OF_WEEK 6
#define RTC_DAY_OF_MONTH 7
#define RTC_MONTH 8
#define RTC_YEAR 9
#define RTC_FREQ_SELECT 10
# define RTC_UIP 0x80
# define RTC_DIV_CTL 0x70
/* This RTC can work under 32.768KHz clock only. */
# define RTC_OSC_ENABLE 0x20
# define RTC_OSC_DISABLE 0x00
#define RTC_CONTROL 11
# define RTC_SET 0x80
# define RTC_PIE 0x40
# define RTC_AIE 0x20
# define RTC_UIE 0x10
# define RTC_SQWE 0x08
# define RTC_DM_BINARY 0x04
# define RTC_24H 0x02
# define RTC_DST_EN 0x01
#endif /* __ASM_SH_SMC37C93X_H */