pmac_feature.c

来自「Linux Kernel 2.6.9 for OMAP1710」· C语言 代码 · 共 2,405 行 · 第 1/5 页

	{ PMAC_FTR_IDE_RESET,		core99_ide_reset },
	{ PMAC_FTR_GMAC_ENABLE,		core99_gmac_enable },
	{ PMAC_FTR_GMAC_PHY_RESET,	core99_gmac_phy_reset },
	{ PMAC_FTR_SOUND_CHIP_ENABLE,	core99_sound_chip_enable },
	{ PMAC_FTR_AIRPORT_ENABLE,	core99_airport_enable },
	{ PMAC_FTR_USB_ENABLE,		core99_usb_enable },
	{ PMAC_FTR_1394_ENABLE,		core99_firewire_enable },
	{ PMAC_FTR_1394_CABLE_POWER,	core99_firewire_cable_power },
	{ PMAC_FTR_SLEEP_STATE,		core99_sleep_state },
	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
	{ PMAC_FTR_AACK_DELAY_ENABLE,	intrepid_aack_delay_enable },
	{ 0, NULL }
};

#else /* CONFIG_POWER4 */

/* G5 features
 */
static struct feature_table_entry g5_features[]  __pmacdata = {
	{ PMAC_FTR_GMAC_ENABLE,		g5_gmac_enable },
	{ PMAC_FTR_1394_ENABLE,		g5_fw_enable },
	{ PMAC_FTR_ENABLE_MPIC,		g5_mpic_enable },
#ifdef CONFIG_SMP
	{ PMAC_FTR_RESET_CPU,		g5_reset_cpu },
#endif /* CONFIG_SMP */
	{ PMAC_FTR_READ_GPIO,		core99_read_gpio },
	{ PMAC_FTR_WRITE_GPIO,		core99_write_gpio },
	{ 0, NULL }
};

#endif /* CONFIG_POWER4 */

static struct pmac_mb_def pmac_mb_defs[] __pmacdata = {
	/* Warning: ordering is important as some models may claim
	 * beeing compatible with several types
	 */
#ifndef CONFIG_POWER4
	{	"AAPL,8500",			"PowerMac 8500/8600",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,9500",			"PowerMac 9500/9600",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,7200",			"PowerMac 7200",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,7300",			"PowerMac 7200/7300",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,7500",			"PowerMac 7500",
		PMAC_TYPE_PSURGE,		NULL,
		0
	},
	{	"AAPL,ShinerESB",		"Apple Network Server",
		PMAC_TYPE_ANS,			NULL,
		0
	},
	{	"AAPL,e407",			"Alchemy",
		PMAC_TYPE_ALCHEMY,		NULL,
		0
	},
	{	"AAPL,e411",			"Gazelle",
		PMAC_TYPE_GAZELLE,		NULL,
		0
	},
	{	"AAPL,3400/2400",		"PowerBook 3400",
		PMAC_TYPE_HOOPER,		ohare_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
	},
	{	"AAPL,3500",			"PowerBook 3500",
		PMAC_TYPE_KANGA,		ohare_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
	},
	{	"AAPL,Gossamer",		"PowerMac G3 (Gossamer)",
		PMAC_TYPE_GOSSAMER,		heathrow_desktop_features,
		0
	},
	{	"AAPL,PowerMac G3",		"PowerMac G3 (Silk)",
		PMAC_TYPE_SILK,			heathrow_desktop_features,
		0
	},
	{	"AAPL,PowerBook1998",		"PowerBook Wallstreet",
		PMAC_TYPE_WALLSTREET,		heathrow_laptop_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
	},
	{	"PowerBook1,1",			"PowerBook 101 (Lombard)",
		PMAC_TYPE_101_PBOOK,		paddington_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_MOBILE
	},
	{	"iMac,1",			"iMac (first generation)",
		PMAC_TYPE_ORIG_IMAC,		paddington_features,
		0
	},
	{	"PowerMac4,1",			"iMac \"Flower Power\"",
		PMAC_TYPE_PANGEA_IMAC,		pangea_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerBook4,3",			"iBook 2 rev. 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerBook4,2",			"iBook 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerBook4,1",			"iBook 2",
		PMAC_TYPE_IBOOK2,		pangea_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerMac4,4",			"eMac",
		PMAC_TYPE_EMAC,			core99_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerMac4,2",			"Flat panel iMac",
		PMAC_TYPE_FLAT_PANEL_IMAC,	pangea_features,
		PMAC_MB_CAN_SLEEP
	},
	{	"PowerMac1,1",			"Blue&White G3",
		PMAC_TYPE_YOSEMITE,		paddington_features,
		0
	},
	{	"PowerMac1,2",			"PowerMac G4 PCI Graphics",
		PMAC_TYPE_YIKES,		paddington_features,
		0
	},
	{	"PowerBook2,1",			"iBook (first generation)",
		PMAC_TYPE_ORIG_IBOOK,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
	},
	{	"PowerMac3,1",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,2",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,3",			"PowerMac G4 AGP Graphics",
		PMAC_TYPE_SAWTOOTH,		core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac2,1",			"iMac FireWire",
		PMAC_TYPE_FW_IMAC,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99
	},
	{	"PowerMac2,2",			"iMac FireWire",
		PMAC_TYPE_FW_IMAC,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_OLD_CORE99
	},
	{	"PowerBook2,2",			"iBook FireWire",
		PMAC_TYPE_FW_IBOOK,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
	},
	{	"PowerMac5,1",			"PowerMac G4 Cube",
		PMAC_TYPE_CUBE,			core99_features,
		PMAC_MB_OLD_CORE99
	},
	{	"PowerMac3,4",			"PowerMac G4 Silver",
		PMAC_TYPE_QUICKSILVER,		core99_features,
		0
	},
	{	"PowerMac3,5",			"PowerMac G4 Silver",
		PMAC_TYPE_QUICKSILVER,		core99_features,
		0
	},
	{	"PowerBook3,1",			"PowerBook Pismo",
		PMAC_TYPE_PISMO,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_OLD_CORE99 | PMAC_MB_MOBILE
	},
	{	"PowerBook3,2",			"PowerBook Titanium",
		PMAC_TYPE_TITANIUM,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerBook3,3",			"PowerBook Titanium II",
		PMAC_TYPE_TITANIUM2,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerBook3,4",			"PowerBook Titanium III",
		PMAC_TYPE_TITANIUM3,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"PowerBook3,5",			"PowerBook Titanium IV",
		PMAC_TYPE_TITANIUM4,		core99_features,
		PMAC_MB_CAN_SLEEP | PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE
	},
	{	"RackMac1,1",			"XServe",
		PMAC_TYPE_RACKMAC,		rackmac_features,
		0,
	},
	{	"RackMac1,2",			"XServe rev. 2",
		PMAC_TYPE_RACKMAC,		rackmac_features,
		0,
	},
	{	"PowerMac3,6",			"PowerMac G4 Windtunnel",
		PMAC_TYPE_WINDTUNNEL,		core99_features,
		0,
	},
	{	"PowerBook5,1",			"PowerBook G4 17\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook5,2",			"PowerBook G4 15\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook5,3",			"PowerBook G4 17\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook5,4",			"PowerBook G4 15\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook5,5",			"PowerBook G4 17\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook6,1",			"PowerBook G4 12\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook6,2",			"PowerBook G4",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook6,3",			"iBook G4",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook6,4",			"PowerBook G4 12\"",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
	{	"PowerBook6,5",			"iBook G4",
		PMAC_TYPE_UNKNOWN_INTREPID,	intrepid_features,
		PMAC_MB_HAS_FW_POWER | PMAC_MB_MOBILE,
	},
#else /* CONFIG_POWER4 */
	{	"PowerMac7,2",			"PowerMac G5",
		PMAC_TYPE_POWERMAC_G5,		g5_features,
		0,
	},
#endif /* CONFIG_POWER4 */
};

/*
 * The toplevel feature_call callback
 */
long __pmac
pmac_do_feature_call(unsigned int selector, ...)
{
	struct device_node* node;
	long param, value;
	int i;
	feature_call func = NULL;
	va_list args;

	if (pmac_mb.features)
		for (i=0; pmac_mb.features[i].function; i++)
			if (pmac_mb.features[i].selector == selector) {
				func = pmac_mb.features[i].function;
				break;
			}
	if (!func)
		for (i=0; any_features[i].function; i++)
			if (any_features[i].selector == selector) {
				func = any_features[i].function;
				break;
			}
	if (!func)
		return -ENODEV;

	va_start(args, selector);
	node = (struct device_node*)va_arg(args, void*);
	param = va_arg(args, long);
	value = va_arg(args, long);
	va_end(args);

	return func(node, param, value);
}

static int __init
probe_motherboard(void)
{
	int i;
	struct macio_chip* macio = &macio_chips[0];
	const char* model = NULL;
	struct device_node *dt;

	/* Lookup known motherboard type in device-tree. First try an
	 * exact match on the "model" property, then try a "compatible"
	 * match is none is found.
	 */
	dt = find_devices("device-tree");
	if (dt != NULL)
		model = (const char *) get_property(dt, "model", NULL);
	for(i=0; model && i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
	    if (strcmp(model, pmac_mb_defs[i].model_string) == 0) {
		pmac_mb = pmac_mb_defs[i];
		goto found;
	    }
	}
	for(i=0; i<(sizeof(pmac_mb_defs)/sizeof(struct pmac_mb_def)); i++) {
	    if (machine_is_compatible(pmac_mb_defs[i].model_string)) {
		pmac_mb = pmac_mb_defs[i];
		goto found;
	    }
	}

	/* Fallback to selection depending on mac-io chip type */
	switch(macio->type) {
#ifndef CONFIG_POWER4
	    case macio_grand_central:
		pmac_mb.model_id = PMAC_TYPE_PSURGE;
		pmac_mb.model_name = "Unknown PowerSurge";
		break;
	    case macio_ohare:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_OHARE;
		pmac_mb.model_name = "Unknown OHare-based";
	    	break;
	    case macio_heathrow:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_HEATHROW;
		pmac_mb.model_name = "Unknown Heathrow-based";
		pmac_mb.features = heathrow_desktop_features;
		break;
	    case macio_paddington:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PADDINGTON;
		pmac_mb.model_name = "Unknown Paddington-based";
	    	pmac_mb.features = paddington_features;
		break;
	    case macio_keylargo:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_CORE99;
		pmac_mb.model_name = "Unknown Keylargo-based";
	    	pmac_mb.features = core99_features;
		break;
	    case macio_pangea:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_PANGEA;
		pmac_mb.model_name = "Unknown Pangea-based";
	    	pmac_mb.features = pangea_features;
		break;
	    case macio_intrepid:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_INTREPID;
		pmac_mb.model_name = "Unknown Intrepid-based";
	    	pmac_mb.features = intrepid_features;
	    	break;
#else /* CONFIG_POWER4 */
	    case macio_keylargo2:
		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
		pmac_mb.model_name = "Unknown G5";
	    	pmac_mb.features = g5_features;
	    	break;
#endif /* CONFIG_POWER4 */
	    default:
	    	return -ENODEV;
	}
found:
#ifndef CONFIG_POWER4
	/* Fixup Hooper vs. Comet */
	if (pmac_mb.model_id == PMAC_TYPE_HOOPER) {
		u32* mach_id_ptr = (u32*)ioremap(0xf3000034, 4);
		if (!mach_id_ptr)
			return -ENODEV;
		/* Here, I used to disable the media-bay on comet. It
		 * appears this is wrong, the floppy connector is actually
		 * a kind of media-bay and works with the current driver.
		 */
		if ((*mach_id_ptr) & 0x20000000UL)
			pmac_mb.model_id = PMAC_TYPE_COMET;
		iounmap(mach_id_ptr);
	}
#endif /* CONFIG_POWER4 */

#ifdef CONFIG_6xx
	/* Set default value of powersave_nap on machines that support it.
	 * It appears that uninorth rev 3 has a problem with it, we don't
	 * enable it on those. In theory, the flush-on-lock property is
	 * supposed to be set when not supported, but I'm not very confident
	 * that all Apple OF revs did it properly, I do it the paranoid way.
	 */
	while (uninorth_base && uninorth_rev > 3) {
		struct device_node* np = find_path_device("/cpus");
		if (!np || !np->child) {
			printk(KERN_WARNING "Can't find CPU(s) in device tree !\n");
			break;
		}
		np = np->child;
		/* Nap mode not supported on SMP */
		if (np->sibling)
			break;
		/* Nap mode not supported if flush-on-lock property is present */
		if (get_property(np, "flush-on-lock", NULL))
			break;
		powersave_nap = 1;
		printk(KERN_INFO "Processor NAP mode on idle enabled.\n");
		break;
	}

	/* On CPUs that support it (750FX), lowspeed by default during
	 * NAP mode
	 */
	powersave_lowspeed = 1;
#endif /* CONFIG_6xx */
#ifdef CONFIG_POWER4
	powersave_nap = 1;
#endif
	/* Check for "mobile" machine */
	if (model && (strncmp(model, "PowerBook", 9) == 0
		   || strncmp(model, "iBook", 5) == 0))
		pmac_mb.board_flags |= PMAC_MB_MOBILE;


	printk(KERN_INFO "PowerMac motherboard: %s\n", pmac_mb.model_name);
	return 0;
}

/* Initialize the Core99 UniNorth host bridge and memory controller
 */
static void __init
probe_uninorth(void)
{
	unsigned long actrl;

	/* Locate core99 Uni-N */
	uninorth_node = of_find_node_by_name(NULL, "uni-n");
	/* Locate G5 u3 */
	if (uninorth_node == NULL) {
		uninorth_node = of_find_node_by_name(NULL, "u3");
		uninorth_u3 = 1;
	}
	if (uninorth_node && uninorth_node->n_addrs > 0) {
		unsigned long address = uninorth_node->addrs[0].address;
		uninorth_base = ioremap(address, 0x40000);
		uninorth_rev = in_be32(UN_REG(UNI_N_VERSION));
		if (uninorth_u3)
			u3_ht = ioremap(address + U3_HT_CONFIG_BASE, 0x1000);
	} else
		uninorth_node = NULL;

	if (!uninorth_node)
		return;

	printk(KERN_INFO "Found %s memory controller & host bridge, revision: %d\n",
	       uninorth_u3 ? "U3" : "UniNorth", uninorth_rev);
	printk(KERN_INFO "Mapped at 0x%08lx\n", (unsigned long)uninorth_base);

	/* Set the arbitrer QAck delay according to what Apple does
	 */
	if (uninorth_rev < 0x11) {
		actrl = UN_IN(UNI_N_ARB_CTRL) & ~UNI_N_ARB_CTRL_QACK_DELAY_MASK;
		actrl |= ((uninorth_rev < 3) ? UNI_N_ARB_CTRL_QACK_DELAY105 :
			UNI_N_ARB_CTRL_QACK_DELAY) << UNI_N_ARB_CTRL_QACK_DELAY_SHIFT;
		UN_OUT(UNI_N_ARB_CTRL, actrl);
	}

	/* Some more magic as done by them in recent MacOS X on UniNorth
	 * revs 1.5 to 2.O and Pangea. Seem to toggle the UniN Maxbus/PCI
	 * memory timeout
	 */
	if ((uninorth_rev >= 0x11 && uninorth_rev <= 0x24) || uninorth_rev == 0xc0)
		UN_OUT(0x2160, UN_IN(0x2160) & 0x00ffffff);
}

static void __init
probe_one_macio(const char* name, const char* compat, int type)
{
	struct device_node*	node;
	int			i;
	volatile u32*		base;
	u32*			revp;

	node = find_devices(name);
	if (!node || !node->n_addrs)
		return;
	if (compat)
		do {
			if (device_is_compatible(nod