91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
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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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