config.c

linux-2.6.15.6

/*
 *  linux/arch/m68k/mac/config.c
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file COPYING in the main directory of this archive
 * for more details.
 */

/*
 * Miscellaneous linux stuff
 */

#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/tty.h>
#include <linux/console.h>
#include <linux/interrupt.h>
/* keyb */
#include <linux/random.h>
#include <linux/delay.h>
/* keyb */
#include <linux/init.h>
#include <linux/vt_kern.h>

#define BOOTINFO_COMPAT_1_0
#include <asm/setup.h>
#include <asm/bootinfo.h>

#include <asm/system.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/pgtable.h>
#include <asm/rtc.h>
#include <asm/machdep.h>

#include <asm/macintosh.h>
#include <asm/macints.h>
#include <asm/machw.h>

#include <asm/mac_iop.h>
#include <asm/mac_via.h>
#include <asm/mac_oss.h>
#include <asm/mac_psc.h>

/* Mac bootinfo struct */

struct mac_booter_data mac_bi_data;
int mac_bisize = sizeof mac_bi_data;

struct mac_hw_present mac_hw_present;

/* New m68k bootinfo stuff and videobase */

extern int m68k_num_memory;
extern struct mem_info m68k_memory[NUM_MEMINFO];

extern struct mem_info m68k_ramdisk;

extern char m68k_command_line[CL_SIZE];

void *mac_env;		/* Loaded by the boot asm */

/* The phys. video addr. - might be bogus on some machines */
unsigned long mac_orig_videoaddr;

/* Mac specific timer functions */
extern unsigned long mac_gettimeoffset (void);
extern int mac_hwclk (int, struct rtc_time *);
extern int mac_set_clock_mmss (unsigned long);
extern int show_mac_interrupts(struct seq_file *, void *);
extern void iop_preinit(void);
extern void iop_init(void);
extern void via_init(void);
extern void via_init_clock(irqreturn_t (*func)(int, void *, struct pt_regs *));
extern void via_flush_cache(void);
extern void oss_init(void);
extern void psc_init(void);
extern void baboon_init(void);

extern void mac_mksound(unsigned int, unsigned int);

extern void nubus_sweep_video(void);

/* Mac specific debug functions (in debug.c) */
extern void mac_debug_init(void);
extern void mac_debugging_long(int, long);

static void mac_get_model(char *str);

void mac_bang(int irq, void *vector, struct pt_regs *p)
{
	printk(KERN_INFO "Resetting ...\n");
	mac_reset();
}

static void mac_sched_init(irqreturn_t (*vector)(int, void *, struct pt_regs *))
{
	via_init_clock(vector);
}

#if 0
void mac_waitbut (void)
{
	;
}
#endif

extern irqreturn_t mac_default_handler(int, void *, struct pt_regs *);

irqreturn_t (*mac_handlers[8])(int, void *, struct pt_regs *)=
{
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler,
	mac_default_handler
};

/*
 * Parse a Macintosh-specific record in the bootinfo
 */

int __init mac_parse_bootinfo(const struct bi_record *record)
{
    int unknown = 0;
    const u_long *data = record->data;

    switch (record->tag) {
	case BI_MAC_MODEL:
	    mac_bi_data.id = *data;
	    break;
	case BI_MAC_VADDR:
	    mac_bi_data.videoaddr = *data;
	    break;
	case BI_MAC_VDEPTH:
	    mac_bi_data.videodepth = *data;
	    break;
	case BI_MAC_VROW:
	    mac_bi_data.videorow = *data;
	    break;
	case BI_MAC_VDIM:
	    mac_bi_data.dimensions = *data;
	    break;
	case BI_MAC_VLOGICAL:
	    mac_bi_data.videological = VIDEOMEMBASE + (*data & ~VIDEOMEMMASK);
	    mac_orig_videoaddr = *data;
	    break;
	case BI_MAC_SCCBASE:
	    mac_bi_data.sccbase = *data;
	    break;
	case BI_MAC_BTIME:
	    mac_bi_data.boottime = *data;
	    break;
	case BI_MAC_GMTBIAS:
	    mac_bi_data.gmtbias = *data;
	    break;
	case BI_MAC_MEMSIZE:
	    mac_bi_data.memsize = *data;
	    break;
	case BI_MAC_CPUID:
	    mac_bi_data.cpuid = *data;
	    break;
        case BI_MAC_ROMBASE:
	    mac_bi_data.rombase = *data;
	    break;
	default:
	    unknown = 1;
    }
    return(unknown);
}

/*
 * Flip into 24bit mode for an instant - flushes the L2 cache card. We
 * have to disable interrupts for this. Our IRQ handlers will crap
 * themselves if they take an IRQ in 24bit mode!
 */

static void mac_cache_card_flush(int writeback)
{
	unsigned long flags;
	local_irq_save(flags);
	via_flush_cache();
	local_irq_restore(flags);
}

void __init config_mac(void)
{
	if (!MACH_IS_MAC) {
	  printk(KERN_ERR "ERROR: no Mac, but config_mac() called!! \n");
	}

	mach_sched_init      = mac_sched_init;
	mach_init_IRQ        = mac_init_IRQ;
	mach_request_irq     = mac_request_irq;
	mach_free_irq        = mac_free_irq;
	enable_irq           = mac_enable_irq;
	disable_irq          = mac_disable_irq;
	mach_get_model	 = mac_get_model;
	mach_default_handler = &mac_handlers;
	mach_get_irq_list    = show_mac_interrupts;
	mach_gettimeoffset   = mac_gettimeoffset;
#warning move to adb/via init
#if 0
	mach_hwclk           = mac_hwclk;
#endif
	mach_set_clock_mmss	 = mac_set_clock_mmss;
	mach_reset           = mac_reset;
	mach_halt            = mac_poweroff;
	mach_power_off       = mac_poweroff;
#ifdef CONFIG_DUMMY_CONSOLE
	conswitchp	         = &dummy_con;
#endif
	mach_max_dma_address = 0xffffffff;
#if 0
	mach_debug_init	 = mac_debug_init;
#endif
#if defined(CONFIG_INPUT_M68K_BEEP) || defined(CONFIG_INPUT_M68K_BEEP_MODULE)
        mach_beep            = mac_mksound;
#endif
#ifdef CONFIG_HEARTBEAT
#if 0
	mach_heartbeat = mac_heartbeat;
	mach_heartbeat_irq = IRQ_MAC_TIMER;
#endif
#endif

	/*
	 * Determine hardware present
	 */

	mac_identify();
	mac_report_hardware();

	/* AFAIK only the IIci takes a cache card.  The IIfx has onboard
	   cache ... someone needs to figure out how to tell if it's on or
	   not. */

	if (macintosh_config->ident == MAC_MODEL_IICI
	    || macintosh_config->ident == MAC_MODEL_IIFX) {
		mach_l2_flush = mac_cache_card_flush;
	}

	/*
	 * Check for machine specific fixups.
	 */

#ifdef OLD_NUBUS_CODE
	 nubus_sweep_video();
#endif
}


/*
 *	Macintosh Table: hardcoded model configuration data.
 *
 *	Much of this was defined by Alan, based on who knows what docs.
 *	I've added a lot more, and some of that was pure guesswork based
 *	on hardware pages present on the Mac web site. Possibly wildly
 *	inaccurate, so look here if a new Mac model won't run. Example: if
 *	a Mac crashes immediately after the VIA1 registers have been dumped
 *	to the screen, it probably died attempting to read DirB on a RBV.
 *	Meaning it should have MAC_VIA_IIci here :-)
 */

struct mac_model *macintosh_config;
EXPORT_SYMBOL(macintosh_config);

static struct mac_model mac_data_table[]=
{
	/*
	 *	We'll pretend to be a Macintosh II, that's pretty safe.
	 */

	{
		.ident		= MAC_MODEL_II,
		.name		= "Unknown",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_II,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	},

	/*
	 *	Original MacII hardware
	 *
	 */

	{
		.ident		= MAC_MODEL_II,
		.name		= "II",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_II,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IIX,
		.name		= "IIx",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_II,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IICX,
		.name		= "IIcx",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_II,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_SE30,
		.name		= "SE/30",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_II,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	},

	/*
	 *	Weirdified MacII hardware - all subtley different. Gee thanks
	 *	Apple. All these boxes seem to have VIA2 in a different place to
	 *	the MacII (+1A000 rather than +4000)
	 * CSA: see http://developer.apple.com/technotes/hw/hw_09.html
	 */

	{
		.ident		= MAC_MODEL_IICI,
		.name		= "IIci",
		.adb_type	= MAC_ADB_II,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IIFX,
		.name		= "IIfx",
		.adb_type	= MAC_ADB_IOP,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_IOP,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IISI,
		.name		= "IIsi",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IIVI,
		.name		= "IIvi",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_IIVX,
		.name		= "IIvx",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	},

	/*
	 *	Classic models (guessing: similar to SE/30 ?? Nope, similar to LC ...)
	 */

	{
		.ident		= MAC_MODEL_CLII,
		.name		= "Classic II",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_CCL,
		.name		= "Color Classic",
		.adb_type	= MAC_ADB_CUDA,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS},

	/*
	 *	Some Mac LC machines. Basically the same as the IIci, ADB like IIsi
	 */

	{
		.ident		= MAC_MODEL_LC,
		.name		= "LC",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_LCII,
		.name		= "LC II",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_LCIII,
		.name		= "LC III",
		.adb_type	= MAC_ADB_IISI,
		.via_type	= MAC_VIA_IIci,
		.scsi_type	= MAC_SCSI_OLD,
		.scc_type	= MAC_SCC_II,
		.nubus_type	= MAC_NUBUS
	},

	/*
	 *	Quadra. Video is at 0xF9000000, via is like a MacII. We label it differently
	 *	as some of the stuff connected to VIA2 seems different. Better SCSI chip and
	 *	onboard ethernet using a NatSemi SONIC except the 660AV and 840AV which use an
	 *	AMD 79C940 (MACE).
	 *	The 700, 900 and 950 have some I/O chips in the wrong place to
	 *	confuse us. The 840AV has a SCSI location of its own (same as
	 *	the 660AV).
	 */

	{
		.ident		= MAC_MODEL_Q605,
		.name		= "Quadra 605",
		.adb_type	= MAC_ADB_CUDA,
		.via_type	= MAC_VIA_QUADRA,
		.scsi_type	= MAC_SCSI_QUADRA,
		.scc_type	= MAC_SCC_QUADRA,
		.nubus_type	= MAC_NUBUS
	}, {
		.ident		= MAC_MODEL_Q605_ACC,
		.name		= "Quadra 605",
		.adb_type	= MAC_ADB_CUDA,
		.via_type	= MAC_VIA_QUADRA,
		.scsi_type	= MAC_SCSI_QUADRA,
		.scc_type	= MAC_SCC_QUADRA,