[deliverable/linux.git] / drivers / bcma / main.c

/*
 * Broadcom specific AMBA
 * Bus subsystem
 *
 * Licensed under the GNU/GPL. See COPYING for details.
 */

#include "bcma_private.h"
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>

MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");

/* contains the number the next bus should get. */
static unsigned int bcma_bus_next_num = 0;

/* bcma_buses_mutex locks the bcma_bus_next_num */
static DEFINE_MUTEX(bcma_buses_mutex);

static int bcma_bus_match(struct device *dev, struct device_driver *drv);
static int bcma_device_probe(struct device *dev);
static int bcma_device_remove(struct device *dev);
static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env);

static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	return sprintf(buf, "0x%03X\n", core->id.manuf);
}
static DEVICE_ATTR_RO(manuf);

static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	return sprintf(buf, "0x%03X\n", core->id.id);
}
static DEVICE_ATTR_RO(id);

static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	return sprintf(buf, "0x%02X\n", core->id.rev);
}
static DEVICE_ATTR_RO(rev);

static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	return sprintf(buf, "0x%X\n", core->id.class);
}
static DEVICE_ATTR_RO(class);

static struct attribute *bcma_device_attrs[] = {
	&dev_attr_manuf.attr,
	&dev_attr_id.attr,
	&dev_attr_rev.attr,
	&dev_attr_class.attr,
	NULL,
};
ATTRIBUTE_GROUPS(bcma_device);

static struct bus_type bcma_bus_type = {
	.name		= "bcma",
	.match		= bcma_bus_match,
	.probe		= bcma_device_probe,
	.remove		= bcma_device_remove,
	.uevent		= bcma_device_uevent,
	.dev_groups	= bcma_device_groups,
};

static u16 bcma_cc_core_id(struct bcma_bus *bus)
{
	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
		return BCMA_CORE_4706_CHIPCOMMON;
	return BCMA_CORE_CHIPCOMMON;
}

struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid,
					u8 unit)
{
	struct bcma_device *core;

	list_for_each_entry(core, &bus->cores, list) {
		if (core->id.id == coreid && core->core_unit == unit)
			return core;
	}
	return NULL;
}
EXPORT_SYMBOL_GPL(bcma_find_core_unit);

bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
		     int timeout)
{
	unsigned long deadline = jiffies + timeout;
	u32 val;

	do {
		val = bcma_read32(core, reg);
		if ((val & mask) == value)
			return true;
		cpu_relax();
		udelay(10);
	} while (!time_after_eq(jiffies, deadline));

	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);

	return false;
}

static void bcma_release_core_dev(struct device *dev)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	if (core->io_addr)
		iounmap(core->io_addr);
	if (core->io_wrap)
		iounmap(core->io_wrap);
	kfree(core);
}

static int bcma_register_cores(struct bcma_bus *bus)
{
	struct bcma_device *core;
	int err, dev_id = 0;

	list_for_each_entry(core, &bus->cores, list) {
		/* We support that cores ourself */
		switch (core->id.id) {
		case BCMA_CORE_4706_CHIPCOMMON:
		case BCMA_CORE_CHIPCOMMON:
		case BCMA_CORE_PCI:
		case BCMA_CORE_PCIE:
		case BCMA_CORE_MIPS_74K:
		case BCMA_CORE_4706_MAC_GBIT_COMMON:
			continue;
		}

		/* Only first GMAC core on BCM4706 is connected and working */
		if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
		    core->core_unit > 0)
			continue;

		core->dev.release = bcma_release_core_dev;
		core->dev.bus = &bcma_bus_type;
		dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);

		switch (bus->hosttype) {
		case BCMA_HOSTTYPE_PCI:
			core->dev.parent = &bus->host_pci->dev;
			core->dma_dev = &bus->host_pci->dev;
			core->irq = bus->host_pci->irq;
			break;
		case BCMA_HOSTTYPE_SOC:
			core->dev.dma_mask = &core->dev.coherent_dma_mask;
			core->dma_dev = &core->dev;
			break;
		case BCMA_HOSTTYPE_SDIO:
			break;
		}

		err = device_register(&core->dev);
		if (err) {
			bcma_err(bus,
				 "Could not register dev for core 0x%03X\n",
				 core->id.id);
			put_device(&core->dev);
			continue;
		}
		core->dev_registered = true;
		dev_id++;
	}

#ifdef CONFIG_BCMA_DRIVER_MIPS
	if (bus->drv_cc.pflash.present) {
		err = platform_device_register(&bcma_pflash_dev);
		if (err)
			bcma_err(bus, "Error registering parallel flash\n");
	}
#endif

#ifdef CONFIG_BCMA_SFLASH
	if (bus->drv_cc.sflash.present) {
		err = platform_device_register(&bcma_sflash_dev);
		if (err)
			bcma_err(bus, "Error registering serial flash\n");
	}
#endif

#ifdef CONFIG_BCMA_NFLASH
	if (bus->drv_cc.nflash.present) {
		err = platform_device_register(&bcma_nflash_dev);
		if (err)
			bcma_err(bus, "Error registering NAND flash\n");
	}
#endif
	err = bcma_gpio_init(&bus->drv_cc);
	if (err == -ENOTSUPP)
		bcma_debug(bus, "GPIO driver not activated\n");
	else if (err)
		bcma_err(bus, "Error registering GPIO driver: %i\n", err);

	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
		err = bcma_chipco_watchdog_register(&bus->drv_cc);
		if (err)
			bcma_err(bus, "Error registering watchdog driver\n");
	}

	return 0;
}

static void bcma_unregister_cores(struct bcma_bus *bus)
{
	struct bcma_device *core, *tmp;

	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
		list_del(&core->list);
		if (core->dev_registered)
			device_unregister(&core->dev);
	}
	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
		platform_device_unregister(bus->drv_cc.watchdog);
}

int bcma_bus_register(struct bcma_bus *bus)
{
	int err;
	struct bcma_device *core;

	mutex_lock(&bcma_buses_mutex);
	bus->num = bcma_bus_next_num++;
	mutex_unlock(&bcma_buses_mutex);

	/* Scan for devices (cores) */
	err = bcma_bus_scan(bus);
	if (err) {
		bcma_err(bus, "Failed to scan: %d\n", err);
		return err;
	}

	/* Early init CC core */
	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	if (core) {
		bus->drv_cc.core = core;
		bcma_core_chipcommon_early_init(&bus->drv_cc);
	}

	/* Try to get SPROM */
	err = bcma_sprom_get(bus);
	if (err == -ENOENT) {
		bcma_err(bus, "No SPROM available\n");
	} else if (err)
		bcma_err(bus, "Failed to get SPROM: %d\n", err);

	/* Init CC core */
	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	if (core) {
		bus->drv_cc.core = core;
		bcma_core_chipcommon_init(&bus->drv_cc);
	}

	/* Init MIPS core */
	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	if (core) {
		bus->drv_mips.core = core;
		bcma_core_mips_init(&bus->drv_mips);
	}

	/* Init PCIE core */
	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
	if (core) {
		bus->drv_pci[0].core = core;
		bcma_core_pci_init(&bus->drv_pci[0]);
	}

	/* Init PCIE core */
	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
	if (core) {
		bus->drv_pci[1].core = core;
		bcma_core_pci_init(&bus->drv_pci[1]);
	}

	/* Init GBIT MAC COMMON core */
	core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	if (core) {
		bus->drv_gmac_cmn.core = core;
		bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
	}

	/* Register found cores */
	bcma_register_cores(bus);

	bcma_info(bus, "Bus registered\n");

	return 0;
}

void bcma_bus_unregister(struct bcma_bus *bus)
{
	struct bcma_device *cores[3];
	int err;

	err = bcma_gpio_unregister(&bus->drv_cc);
	if (err == -EBUSY)
		bcma_err(bus, "Some GPIOs are still in use.\n");
	else if (err)
		bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);

	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);

	bcma_unregister_cores(bus);

	kfree(cores[2]);
	kfree(cores[1]);
	kfree(cores[0]);
}

int __init bcma_bus_early_register(struct bcma_bus *bus,
				   struct bcma_device *core_cc,
				   struct bcma_device *core_mips)
{
	int err;
	struct bcma_device *core;
	struct bcma_device_id match;

	bcma_init_bus(bus);

	match.manuf = BCMA_MANUF_BCM;
	match.id = bcma_cc_core_id(bus);
	match.class = BCMA_CL_SIM;
	match.rev = BCMA_ANY_REV;

	/* Scan for chip common core */
	err = bcma_bus_scan_early(bus, &match, core_cc);
	if (err) {
		bcma_err(bus, "Failed to scan for common core: %d\n", err);
		return -1;
	}

	match.manuf = BCMA_MANUF_MIPS;
	match.id = BCMA_CORE_MIPS_74K;
	match.class = BCMA_CL_SIM;
	match.rev = BCMA_ANY_REV;

	/* Scan for mips core */
	err = bcma_bus_scan_early(bus, &match, core_mips);
	if (err) {
		bcma_err(bus, "Failed to scan for mips core: %d\n", err);
		return -1;
	}

	/* Early init CC core */
	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	if (core) {
		bus->drv_cc.core = core;
		bcma_core_chipcommon_early_init(&bus->drv_cc);
	}

	/* Early init MIPS core */
	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	if (core) {
		bus->drv_mips.core = core;
		bcma_core_mips_early_init(&bus->drv_mips);
	}

	bcma_info(bus, "Early bus registered\n");

	return 0;
}

#ifdef CONFIG_PM
int bcma_bus_suspend(struct bcma_bus *bus)
{
	struct bcma_device *core;

	list_for_each_entry(core, &bus->cores, list) {
		struct device_driver *drv = core->dev.driver;
		if (drv) {
			struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
			if (adrv->suspend)
				adrv->suspend(core);
		}
	}
	return 0;
}

int bcma_bus_resume(struct bcma_bus *bus)
{
	struct bcma_device *core;

	/* Init CC core */
	if (bus->drv_cc.core) {
		bus->drv_cc.setup_done = false;
		bcma_core_chipcommon_init(&bus->drv_cc);
	}

	list_for_each_entry(core, &bus->cores, list) {
		struct device_driver *drv = core->dev.driver;
		if (drv) {
			struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
			if (adrv->resume)
				adrv->resume(core);
		}
	}

	return 0;
}
#endif

int __bcma_driver_register(struct bcma_driver *drv, struct module *owner)
{
	drv->drv.name = drv->name;
	drv->drv.bus = &bcma_bus_type;
	drv->drv.owner = owner;

	return driver_register(&drv->drv);
}
EXPORT_SYMBOL_GPL(__bcma_driver_register);

void bcma_driver_unregister(struct bcma_driver *drv)
{
	driver_unregister(&drv->drv);
}
EXPORT_SYMBOL_GPL(bcma_driver_unregister);

static int bcma_bus_match(struct device *dev, struct device_driver *drv)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	const struct bcma_device_id *cid = &core->id;
	const struct bcma_device_id *did;

	for (did = adrv->id_table; did->manuf || did->id || did->rev; did++) {
	    if ((did->manuf == cid->manuf || did->manuf == BCMA_ANY_MANUF) &&
		(did->id == cid->id || did->id == BCMA_ANY_ID) &&
		(did->rev == cid->rev || did->rev == BCMA_ANY_REV) &&
		(did->class == cid->class || did->class == BCMA_ANY_CLASS))
			return 1;
	}
	return 0;
}

static int bcma_device_probe(struct device *dev)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
					       drv);
	int err = 0;

	if (adrv->probe)
		err = adrv->probe(core);

	return err;
}

static int bcma_device_remove(struct device *dev)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
					       drv);

	if (adrv->remove)
		adrv->remove(core);

	return 0;
}

static int bcma_device_uevent(struct device *dev, struct kobj_uevent_env *env)
{
	struct bcma_device *core = container_of(dev, struct bcma_device, dev);

	return add_uevent_var(env,
			      "MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
			      core->id.manuf, core->id.id,
			      core->id.rev, core->id.class);
}

static int __init bcma_modinit(void)
{
	int err;

	err = bus_register(&bcma_bus_type);
	if (err)
		return err;

#ifdef CONFIG_BCMA_HOST_PCI
	err = bcma_host_pci_init();
	if (err) {
		pr_err("PCI host initialization failed\n");
		err = 0;
	}
#endif

	return err;
}
fs_initcall(bcma_modinit);

static void __exit bcma_modexit(void)
{
#ifdef CONFIG_BCMA_HOST_PCI
	bcma_host_pci_exit();
#endif
	bus_unregister(&bcma_bus_type);
}
module_exit(bcma_modexit)
Commit	Line	Data
8369ae33 RM	1	/*
	2	* Broadcom specific AMBA
	3	* Bus subsystem
	4	*
	5	* Licensed under the GNU/GPL. See COPYING for details.
	6	*/
	7
	8	#include "bcma_private.h"
200351c7	9	#include <linux/module.h>
d57ef3a6	10	#include <linux/platform_device.h>
8369ae33	11	#include <linux/bcma/bcma.h>
eef72699	12	#include <linux/slab.h>
8369ae33 RM	13
	14	MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
	15	MODULE_LICENSE("GPL");
	16
8f9ada4f HM	17	/* contains the number the next bus should get. */
	18	static unsigned int bcma_bus_next_num = 0;
	19
	20	/* bcma_buses_mutex locks the bcma_bus_next_num */
	21	static DEFINE_MUTEX(bcma_buses_mutex);
	22
8369ae33 RM	23	static int bcma_bus_match(struct device dev, struct device_driver drv);
	24	static int bcma_device_probe(struct device *dev);
	25	static int bcma_device_remove(struct device *dev);
886b66ef	26	static int bcma_device_uevent(struct device dev, struct kobj_uevent_env env);
8369ae33 RM	27
	28	static ssize_t manuf_show(struct device dev, struct device_attribute attr, char *buf)
	29	{
	30	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	31	return sprintf(buf, "0x%03X\n", core->id.manuf);
	32	}
fdcf4f81 GKH	33	static DEVICE_ATTR_RO(manuf);
fdcf4f81 GKH	34
8369ae33 RM	35	static ssize_t id_show(struct device dev, struct device_attribute attr, char *buf)
	36	{
	37	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	38	return sprintf(buf, "0x%03X\n", core->id.id);
	39	}
fdcf4f81 GKH	40	static DEVICE_ATTR_RO(id);
fdcf4f81 GKH	41
8369ae33 RM	42	static ssize_t rev_show(struct device dev, struct device_attribute attr, char *buf)
	43	{
	44	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	45	return sprintf(buf, "0x%02X\n", core->id.rev);
	46	}
fdcf4f81 GKH	47	static DEVICE_ATTR_RO(rev);
fdcf4f81 GKH	48
8369ae33 RM	49	static ssize_t class_show(struct device dev, struct device_attribute attr, char *buf)
	50	{
	51	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	52	return sprintf(buf, "0x%X\n", core->id.class);
	53	}
fdcf4f81 GKH	54	static DEVICE_ATTR_RO(class);
	55
	56	static struct attribute *bcma_device_attrs[] = {
	57	&dev_attr_manuf.attr,
	58	&dev_attr_id.attr,
	59	&dev_attr_rev.attr,
	60	&dev_attr_class.attr,
	61	NULL,
8369ae33	62	};
fdcf4f81	63	ATTRIBUTE_GROUPS(bcma_device);
8369ae33 RM	64
	65	static struct bus_type bcma_bus_type = {
	66	.name = "bcma",
	67	.match = bcma_bus_match,
	68	.probe = bcma_device_probe,
	69	.remove = bcma_device_remove,
886b66ef	70	.uevent = bcma_device_uevent,
fdcf4f81	71	.dev_groups = bcma_device_groups,
8369ae33 RM	72	};
8369ae33 RM	73
6d5cfc9f RM	74	static u16 bcma_cc_core_id(struct bcma_bus *bus)
	75	{
	76	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
	77	return BCMA_CORE_4706_CHIPCOMMON;
	78	return BCMA_CORE_CHIPCOMMON;
	79	}
	80
929a03ae HM	81	struct bcma_device bcma_find_core_unit(struct bcma_bus bus, u16 coreid,
929a03ae HM	82	u8 unit)
dfae7143 HM	83	{
	84	struct bcma_device *core;
	85
	86	list_for_each_entry(core, &bus->cores, list) {
	87	if (core->id.id == coreid && core->core_unit == unit)
	88	return core;
	89	}
	90	return NULL;
	91	}
b2395b8a	92	EXPORT_SYMBOL_GPL(bcma_find_core_unit);
dfae7143	93
88f9b65d RM	94	bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
	95	int timeout)
	96	{
	97	unsigned long deadline = jiffies + timeout;
	98	u32 val;
	99
	100	do {
	101	val = bcma_read32(core, reg);
	102	if ((val & mask) == value)
	103	return true;
	104	cpu_relax();
	105	udelay(10);
	106	} while (!time_after_eq(jiffies, deadline));
	107
	108	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
	109
	110	return false;
	111	}
	112
8369ae33 RM	113	static void bcma_release_core_dev(struct device *dev)
	114	{
	115	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
ecd177c2 HM	116	if (core->io_addr)
	117	iounmap(core->io_addr);
	118	if (core->io_wrap)
	119	iounmap(core->io_wrap);
8369ae33 RM	120	kfree(core);
	121	}
	122
	123	static int bcma_register_cores(struct bcma_bus *bus)
	124	{
	125	struct bcma_device *core;
	126	int err, dev_id = 0;
	127
	128	list_for_each_entry(core, &bus->cores, list) {
	129	/* We support that cores ourself */
	130	switch (core->id.id) {
6d5cfc9f	131	case BCMA_CORE_4706_CHIPCOMMON:
8369ae33 RM	132	case BCMA_CORE_CHIPCOMMON:
	133	case BCMA_CORE_PCI:
	134	case BCMA_CORE_PCIE:
21e0534a	135	case BCMA_CORE_MIPS_74K:
e1ac4b40	136	case BCMA_CORE_4706_MAC_GBIT_COMMON:
8369ae33 RM	137	continue;
	138	}
	139
10419d08 RM	140	/* Only first GMAC core on BCM4706 is connected and working */
	141	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
	142	core->core_unit > 0)
	143	continue;
	144
8369ae33 RM	145	core->dev.release = bcma_release_core_dev;
8369ae33 RM	146	core->dev.bus = &bcma_bus_type;
8f9ada4f	147	dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
8369ae33 RM	148
	149	switch (bus->hosttype) {
	150	case BCMA_HOSTTYPE_PCI:
	151	core->dev.parent = &bus->host_pci->dev;
1bdcd095 RM	152	core->dma_dev = &bus->host_pci->dev;
1bdcd095 RM	153	core->irq = bus->host_pci->irq;
8369ae33	154	break;
ecd177c2 HM	155	case BCMA_HOSTTYPE_SOC:
	156	core->dev.dma_mask = &core->dev.coherent_dma_mask;
	157	core->dma_dev = &core->dev;
	158	break;
8369ae33 RM	159	case BCMA_HOSTTYPE_SDIO:
	160	break;
	161	}
	162
	163	err = device_register(&core->dev);
	164	if (err) {
3d9d8af3 RM	165	bcma_err(bus,
	166	"Could not register dev for core 0x%03X\n",
	167	core->id.id);
08f336b8	168	put_device(&core->dev);
8369ae33 RM	169	continue;
	170	}
	171	core->dev_registered = true;
	172	dev_id++;
	173	}
	174
73e4dbe4 RM	175	#ifdef CONFIG_BCMA_DRIVER_MIPS
	176	if (bus->drv_cc.pflash.present) {
	177	err = platform_device_register(&bcma_pflash_dev);
	178	if (err)
	179	bcma_err(bus, "Error registering parallel flash\n");
	180	}
	181	#endif
	182
d57ef3a6 RM	183	#ifdef CONFIG_BCMA_SFLASH
	184	if (bus->drv_cc.sflash.present) {
	185	err = platform_device_register(&bcma_sflash_dev);
	186	if (err)
	187	bcma_err(bus, "Error registering serial flash\n");
	188	}
	189	#endif
	190
371a0044 RM	191	#ifdef CONFIG_BCMA_NFLASH
	192	if (bus->drv_cc.nflash.present) {
	193	err = platform_device_register(&bcma_nflash_dev);
	194	if (err)
	195	bcma_err(bus, "Error registering NAND flash\n");
	196	}
	197	#endif
cf0936b0 HM	198	err = bcma_gpio_init(&bus->drv_cc);
	199	if (err == -ENOTSUPP)
	200	bcma_debug(bus, "GPIO driver not activated\n");
	201	else if (err)
	202	bcma_err(bus, "Error registering GPIO driver: %i\n", err);
371a0044	203
a4855f39 HM	204	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
	205	err = bcma_chipco_watchdog_register(&bus->drv_cc);
	206	if (err)
	207	bcma_err(bus, "Error registering watchdog driver\n");
	208	}
	209
8369ae33 RM	210	return 0;
	211	}
	212
	213	static void bcma_unregister_cores(struct bcma_bus *bus)
	214	{
1fffa905	215	struct bcma_device core, tmp;
8369ae33	216
1fffa905 PH	217	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
1fffa905 PH	218	list_del(&core->list);
8369ae33 RM	219	if (core->dev_registered)
	220	device_unregister(&core->dev);
	221	}
a4855f39 HM	222	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
a4855f39 HM	223	platform_device_unregister(bus->drv_cc.watchdog);
8369ae33 RM	224	}
8369ae33 RM	225
0f58a01d	226	int bcma_bus_register(struct bcma_bus *bus)
8369ae33 RM	227	{
	228	int err;
	229	struct bcma_device *core;
	230
8f9ada4f HM	231	mutex_lock(&bcma_buses_mutex);
	232	bus->num = bcma_bus_next_num++;
	233	mutex_unlock(&bcma_buses_mutex);
	234
8369ae33 RM	235	/* Scan for devices (cores) */
	236	err = bcma_bus_scan(bus);
	237	if (err) {
3d9d8af3	238	bcma_err(bus, "Failed to scan: %d\n", err);
1cabf7db	239	return err;
8369ae33 RM	240	}
8369ae33 RM	241
30cfb023 HM	242	/* Early init CC core */
	243	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	244	if (core) {
	245	bus->drv_cc.core = core;
	246	bcma_core_chipcommon_early_init(&bus->drv_cc);
	247	}
	248
	249	/* Try to get SPROM */
	250	err = bcma_sprom_get(bus);
	251	if (err == -ENOENT) {
	252	bcma_err(bus, "No SPROM available\n");
	253	} else if (err)
	254	bcma_err(bus, "Failed to get SPROM: %d\n", err);
	255
8369ae33	256	/* Init CC core */
6d5cfc9f	257	core = bcma_find_core(bus, bcma_cc_core_id(bus));
8369ae33 RM	258	if (core) {
	259	bus->drv_cc.core = core;
	260	bcma_core_chipcommon_init(&bus->drv_cc);
	261	}
	262
21e0534a HM	263	/* Init MIPS core */
	264	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	265	if (core) {
	266	bus->drv_mips.core = core;
	267	bcma_core_mips_init(&bus->drv_mips);
	268	}
	269
8369ae33	270	/* Init PCIE core */
dfae7143 HM	271	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
	272	if (core) {
	273	bus->drv_pci[0].core = core;
	274	bcma_core_pci_init(&bus->drv_pci[0]);
	275	}
	276
	277	/* Init PCIE core */
	278	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
8369ae33	279	if (core) {
dfae7143 HM	280	bus->drv_pci[1].core = core;
dfae7143 HM	281	bcma_core_pci_init(&bus->drv_pci[1]);
8369ae33 RM	282	}
8369ae33 RM	283
e1ac4b40 RM	284	/* Init GBIT MAC COMMON core */
	285	core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	286	if (core) {
	287	bus->drv_gmac_cmn.core = core;
	288	bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
	289	}
	290
8369ae33 RM	291	/* Register found cores */
	292	bcma_register_cores(bus);
	293
3d9d8af3	294	bcma_info(bus, "Bus registered\n");
8369ae33 RM	295
	296	return 0;
	297	}
8369ae33 RM	298
	299	void bcma_bus_unregister(struct bcma_bus *bus)
	300	{
ee915927	301	struct bcma_device *cores[3];
c50ae947 HM	302	int err;
	303
	304	err = bcma_gpio_unregister(&bus->drv_cc);
	305	if (err == -EBUSY)
	306	bcma_err(bus, "Some GPIOs are still in use.\n");
	307	else if (err)
	308	bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
ee915927 SSJ	309
	310	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	311	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
	312	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	313
8369ae33	314	bcma_unregister_cores(bus);
ee915927 SSJ	315
	316	kfree(cores[2]);
	317	kfree(cores[1]);
	318	kfree(cores[0]);
8369ae33	319	}
8369ae33	320
517f43e5 HM	321	int __init bcma_bus_early_register(struct bcma_bus *bus,
	322	struct bcma_device *core_cc,
	323	struct bcma_device *core_mips)
	324	{
	325	int err;
	326	struct bcma_device *core;
	327	struct bcma_device_id match;
	328
	329	bcma_init_bus(bus);
	330
	331	match.manuf = BCMA_MANUF_BCM;
6d5cfc9f	332	match.id = bcma_cc_core_id(bus);
517f43e5 HM	333	match.class = BCMA_CL_SIM;
	334	match.rev = BCMA_ANY_REV;
	335
	336	/* Scan for chip common core */
	337	err = bcma_bus_scan_early(bus, &match, core_cc);
	338	if (err) {
3d9d8af3	339	bcma_err(bus, "Failed to scan for common core: %d\n", err);
517f43e5 HM	340	return -1;
	341	}
	342
	343	match.manuf = BCMA_MANUF_MIPS;
	344	match.id = BCMA_CORE_MIPS_74K;
	345	match.class = BCMA_CL_SIM;
	346	match.rev = BCMA_ANY_REV;
	347
	348	/* Scan for mips core */
	349	err = bcma_bus_scan_early(bus, &match, core_mips);
	350	if (err) {
3d9d8af3	351	bcma_err(bus, "Failed to scan for mips core: %d\n", err);
517f43e5 HM	352	return -1;
	353	}
	354
49655bb8	355	/* Early init CC core */
6d5cfc9f	356	core = bcma_find_core(bus, bcma_cc_core_id(bus));
517f43e5 HM	357	if (core) {
517f43e5 HM	358	bus->drv_cc.core = core;
49655bb8	359	bcma_core_chipcommon_early_init(&bus->drv_cc);
517f43e5 HM	360	}
517f43e5 HM	361
49655bb8	362	/* Early init MIPS core */
21e0534a HM	363	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	364	if (core) {
	365	bus->drv_mips.core = core;
49655bb8	366	bcma_core_mips_early_init(&bus->drv_mips);
21e0534a HM	367	}
21e0534a HM	368
3d9d8af3	369	bcma_info(bus, "Early bus registered\n");
517f43e5 HM	370
	371	return 0;
	372	}
	373
775ab521	374	#ifdef CONFIG_PM
685a4ef0 LT	375	int bcma_bus_suspend(struct bcma_bus *bus)
685a4ef0 LT	376	{
7d5869e7 LT	377	struct bcma_device *core;
	378
	379	list_for_each_entry(core, &bus->cores, list) {
	380	struct device_driver *drv = core->dev.driver;
	381	if (drv) {
	382	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	383	if (adrv->suspend)
	384	adrv->suspend(core);
	385	}
	386	}
685a4ef0 LT	387	return 0;
	388	}
	389
775ab521 RM	390	int bcma_bus_resume(struct bcma_bus *bus)
	391	{
	392	struct bcma_device *core;
	393
	394	/* Init CC core */
6d5cfc9f	395	if (bus->drv_cc.core) {
775ab521 RM	396	bus->drv_cc.setup_done = false;
	397	bcma_core_chipcommon_init(&bus->drv_cc);
	398	}
	399
7d5869e7 LT	400	list_for_each_entry(core, &bus->cores, list) {
	401	struct device_driver *drv = core->dev.driver;
	402	if (drv) {
	403	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	404	if (adrv->resume)
	405	adrv->resume(core);
	406	}
	407	}
	408
775ab521 RM	409	return 0;
	410	}
	411	#endif
	412
8369ae33 RM	413	int __bcma_driver_register(struct bcma_driver drv, struct module owner)
	414	{
	415	drv->drv.name = drv->name;
	416	drv->drv.bus = &bcma_bus_type;
	417	drv->drv.owner = owner;
	418
	419	return driver_register(&drv->drv);
	420	}
	421	EXPORT_SYMBOL_GPL(__bcma_driver_register);
	422
	423	void bcma_driver_unregister(struct bcma_driver *drv)
	424	{
	425	driver_unregister(&drv->drv);
	426	}
	427	EXPORT_SYMBOL_GPL(bcma_driver_unregister);
	428
	429	static int bcma_bus_match(struct device dev, struct device_driver drv)
	430	{
	431	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	432	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	433	const struct bcma_device_id *cid = &core->id;
	434	const struct bcma_device_id *did;
	435
	436	for (did = adrv->id_table; did->manuf \|\| did->id \|\| did->rev; did++) {
	437	if ((did->manuf == cid->manuf \|\| did->manuf == BCMA_ANY_MANUF) &&
	438	(did->id == cid->id \|\| did->id == BCMA_ANY_ID) &&
	439	(did->rev == cid->rev \|\| did->rev == BCMA_ANY_REV) &&
	440	(did->class == cid->class \|\| did->class == BCMA_ANY_CLASS))
	441	return 1;
	442	}
	443	return 0;
	444	}
	445
	446	static int bcma_device_probe(struct device *dev)
	447	{
	448	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	449	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	450	drv);
	451	int err = 0;
	452
	453	if (adrv->probe)
	454	err = adrv->probe(core);
	455
	456	return err;
	457	}
	458
	459	static int bcma_device_remove(struct device *dev)
	460	{
	461	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	462	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	463	drv);
	464
	465	if (adrv->remove)
	466	adrv->remove(core);
	467
	468	return 0;
	469	}
	470
886b66ef DW	471	static int bcma_device_uevent(struct device dev, struct kobj_uevent_env env)
	472	{
	473	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	474
	475	return add_uevent_var(env,
	476	"MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
	477	core->id.manuf, core->id.id,
	478	core->id.rev, core->id.class);
	479	}
	480
8369ae33 RM	481	static int __init bcma_modinit(void)
	482	{
	483	int err;
	484
	485	err = bus_register(&bcma_bus_type);
	486	if (err)
	487	return err;
	488
	489	#ifdef CONFIG_BCMA_HOST_PCI
	490	err = bcma_host_pci_init();
	491	if (err) {
	492	pr_err("PCI host initialization failed\n");
	493	err = 0;
	494	}
	495	#endif
	496
	497	return err;
	498	}
	499	fs_initcall(bcma_modinit);
	500
	501	static void __exit bcma_modexit(void)
	502	{
	503	#ifdef CONFIG_BCMA_HOST_PCI
	504	bcma_host_pci_exit();
	505	#endif
	506	bus_unregister(&bcma_bus_type);
	507	}
	508	module_exit(bcma_modexit)