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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/m68k/include/asm/apollohw.h
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/* SPDX-License-Identifier: GPL-2.0 */

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/* apollohw.h : some structures to access apollo HW */

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#ifndef _ASMm68k_APOLLOHW_H_

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#define _ASMm68k_APOLLOHW_H_

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#include <linux/types.h>

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#include <asm/bootinfo-apollo.h>

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extern u_long apollo_model;

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/*

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   see scn2681 data sheet for more info.

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   member names are read_write.

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*/

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#define DECLARE_2681_FIELD(x) unsigned char x; unsigned char dummy##x

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struct SCN2681 {

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	DECLARE_2681_FIELD(mra);

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	DECLARE_2681_FIELD(sra_csra);

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	DECLARE_2681_FIELD(BRGtest_cra);

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	DECLARE_2681_FIELD(rhra_thra);

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	DECLARE_2681_FIELD(ipcr_acr);

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	DECLARE_2681_FIELD(isr_imr);

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	DECLARE_2681_FIELD(ctu_ctur);

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	DECLARE_2681_FIELD(ctl_ctlr);

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	DECLARE_2681_FIELD(mrb);

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	DECLARE_2681_FIELD(srb_csrb);

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	DECLARE_2681_FIELD(tst_crb);

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	DECLARE_2681_FIELD(rhrb_thrb);

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	DECLARE_2681_FIELD(reserved);

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	DECLARE_2681_FIELD(ip_opcr);

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	DECLARE_2681_FIELD(startCnt_setOutBit);

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	DECLARE_2681_FIELD(stopCnt_resetOutBit);

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};

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struct mc146818 {

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        unsigned char second, alarm_second;

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        unsigned char minute, alarm_minute;

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        unsigned char hours, alarm_hours;

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        unsigned char day_of_week, day_of_month;

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        unsigned char month, year;

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};

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#define IO_BASE 0x80000000

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extern u_long sio01_physaddr;

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extern u_long sio23_physaddr;

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extern u_long rtc_physaddr;

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extern u_long pica_physaddr;

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extern u_long picb_physaddr;

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extern u_long cpuctrl_physaddr;

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extern u_long timer_physaddr;

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#define SAU7_SIO01_PHYSADDR 0x10400

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#define SAU7_SIO23_PHYSADDR 0x10500

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#define SAU7_RTC_PHYSADDR 0x10900

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#define SAU7_PICA 0x11000

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#define SAU7_PICB 0x11100

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#define SAU7_CPUCTRL 0x10100

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#define SAU7_TIMER 0x010800

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#define SAU8_SIO01_PHYSADDR 0x8400

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#define SAU8_RTC_PHYSADDR 0x8900

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#define SAU8_PICA 0x9400

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#define SAU8_PICB 0x9500

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#define SAU8_CPUCTRL 0x8100

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#define SAU8_TIMER 0x8800

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#define sio01 ((*(volatile struct SCN2681 *)(IO_BASE + sio01_physaddr)))

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#define sio23 ((*(volatile struct SCN2681 *)(IO_BASE + sio23_physaddr)))

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#define rtc (((volatile struct mc146818 *)(IO_BASE + rtc_physaddr)))

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#define cpuctrl (*(volatile unsigned int *)(IO_BASE + cpuctrl_physaddr))

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#define pica (IO_BASE + pica_physaddr)

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#define picb (IO_BASE + picb_physaddr)

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#define apollo_timer (IO_BASE + timer_physaddr)

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#define addr_xlat_map ((unsigned short *)(IO_BASE + 0x17000))

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#define isaIO2mem(x) (((((x) & 0x3f8)  << 7) | (((x) & 0xfc00) >> 6) | ((x) & 0x7)) + 0x40000 + IO_BASE)

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#define IRQ_APOLLO	IRQ_USER

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#endif

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