[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(struct bcma_bus *bus, u16 coreid)
{
	struct bcma_device *core;

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

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;
}

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
1c9351cf	81	struct bcma_device bcma_find_core(struct bcma_bus bus, u16 coreid)
8369ae33 RM	82	{
	83	struct bcma_device *core;
	84
	85	list_for_each_entry(core, &bus->cores, list) {
	86	if (core->id.id == coreid)
	87	return core;
	88	}
	89	return NULL;
	90	}
1c9351cf	91	EXPORT_SYMBOL_GPL(bcma_find_core);
8369ae33	92
929a03ae HM	93	struct bcma_device bcma_find_core_unit(struct bcma_bus bus, u16 coreid,
929a03ae HM	94	u8 unit)
dfae7143 HM	95	{
	96	struct bcma_device *core;
	97
	98	list_for_each_entry(core, &bus->cores, list) {
	99	if (core->id.id == coreid && core->core_unit == unit)
	100	return core;
	101	}
	102	return NULL;
	103	}
	104
88f9b65d RM	105	bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
	106	int timeout)
	107	{
	108	unsigned long deadline = jiffies + timeout;
	109	u32 val;
	110
	111	do {
	112	val = bcma_read32(core, reg);
	113	if ((val & mask) == value)
	114	return true;
	115	cpu_relax();
	116	udelay(10);
	117	} while (!time_after_eq(jiffies, deadline));
	118
	119	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
	120
	121	return false;
	122	}
	123
8369ae33 RM	124	static void bcma_release_core_dev(struct device *dev)
	125	{
	126	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
ecd177c2 HM	127	if (core->io_addr)
	128	iounmap(core->io_addr);
	129	if (core->io_wrap)
	130	iounmap(core->io_wrap);
8369ae33 RM	131	kfree(core);
	132	}
	133
	134	static int bcma_register_cores(struct bcma_bus *bus)
	135	{
	136	struct bcma_device *core;
	137	int err, dev_id = 0;
	138
	139	list_for_each_entry(core, &bus->cores, list) {
	140	/* We support that cores ourself */
	141	switch (core->id.id) {
6d5cfc9f	142	case BCMA_CORE_4706_CHIPCOMMON:
8369ae33 RM	143	case BCMA_CORE_CHIPCOMMON:
	144	case BCMA_CORE_PCI:
	145	case BCMA_CORE_PCIE:
21e0534a	146	case BCMA_CORE_MIPS_74K:
e1ac4b40	147	case BCMA_CORE_4706_MAC_GBIT_COMMON:
8369ae33 RM	148	continue;
	149	}
	150
10419d08 RM	151	/* Only first GMAC core on BCM4706 is connected and working */
	152	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
	153	core->core_unit > 0)
	154	continue;
	155
8369ae33 RM	156	core->dev.release = bcma_release_core_dev;
8369ae33 RM	157	core->dev.bus = &bcma_bus_type;
8f9ada4f	158	dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
8369ae33 RM	159
	160	switch (bus->hosttype) {
	161	case BCMA_HOSTTYPE_PCI:
	162	core->dev.parent = &bus->host_pci->dev;
1bdcd095 RM	163	core->dma_dev = &bus->host_pci->dev;
1bdcd095 RM	164	core->irq = bus->host_pci->irq;
8369ae33	165	break;
ecd177c2 HM	166	case BCMA_HOSTTYPE_SOC:
	167	core->dev.dma_mask = &core->dev.coherent_dma_mask;
	168	core->dma_dev = &core->dev;
	169	break;
8369ae33 RM	170	case BCMA_HOSTTYPE_SDIO:
	171	break;
	172	}
	173
	174	err = device_register(&core->dev);
	175	if (err) {
3d9d8af3 RM	176	bcma_err(bus,
	177	"Could not register dev for core 0x%03X\n",
	178	core->id.id);
08f336b8	179	put_device(&core->dev);
8369ae33 RM	180	continue;
	181	}
	182	core->dev_registered = true;
	183	dev_id++;
	184	}
	185
73e4dbe4 RM	186	#ifdef CONFIG_BCMA_DRIVER_MIPS
	187	if (bus->drv_cc.pflash.present) {
	188	err = platform_device_register(&bcma_pflash_dev);
	189	if (err)
	190	bcma_err(bus, "Error registering parallel flash\n");
	191	}
	192	#endif
	193
d57ef3a6 RM	194	#ifdef CONFIG_BCMA_SFLASH
	195	if (bus->drv_cc.sflash.present) {
	196	err = platform_device_register(&bcma_sflash_dev);
	197	if (err)
	198	bcma_err(bus, "Error registering serial flash\n");
	199	}
	200	#endif
	201
371a0044 RM	202	#ifdef CONFIG_BCMA_NFLASH
	203	if (bus->drv_cc.nflash.present) {
	204	err = platform_device_register(&bcma_nflash_dev);
	205	if (err)
	206	bcma_err(bus, "Error registering NAND flash\n");
	207	}
	208	#endif
cf0936b0 HM	209	err = bcma_gpio_init(&bus->drv_cc);
	210	if (err == -ENOTSUPP)
	211	bcma_debug(bus, "GPIO driver not activated\n");
	212	else if (err)
	213	bcma_err(bus, "Error registering GPIO driver: %i\n", err);
371a0044	214
a4855f39 HM	215	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
	216	err = bcma_chipco_watchdog_register(&bus->drv_cc);
	217	if (err)
	218	bcma_err(bus, "Error registering watchdog driver\n");
	219	}
	220
8369ae33 RM	221	return 0;
	222	}
	223
	224	static void bcma_unregister_cores(struct bcma_bus *bus)
	225	{
1fffa905	226	struct bcma_device core, tmp;
8369ae33	227
1fffa905 PH	228	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
1fffa905 PH	229	list_del(&core->list);
8369ae33 RM	230	if (core->dev_registered)
	231	device_unregister(&core->dev);
	232	}
a4855f39 HM	233	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
a4855f39 HM	234	platform_device_unregister(bus->drv_cc.watchdog);
8369ae33 RM	235	}
8369ae33 RM	236
0f58a01d	237	int bcma_bus_register(struct bcma_bus *bus)
8369ae33 RM	238	{
	239	int err;
	240	struct bcma_device *core;
	241
8f9ada4f HM	242	mutex_lock(&bcma_buses_mutex);
	243	bus->num = bcma_bus_next_num++;
	244	mutex_unlock(&bcma_buses_mutex);
	245
8369ae33 RM	246	/* Scan for devices (cores) */
	247	err = bcma_bus_scan(bus);
	248	if (err) {
3d9d8af3	249	bcma_err(bus, "Failed to scan: %d\n", err);
1cabf7db	250	return err;
8369ae33 RM	251	}
8369ae33 RM	252
30cfb023 HM	253	/* Early init CC core */
	254	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	255	if (core) {
	256	bus->drv_cc.core = core;
	257	bcma_core_chipcommon_early_init(&bus->drv_cc);
	258	}
	259
	260	/* Try to get SPROM */
	261	err = bcma_sprom_get(bus);
	262	if (err == -ENOENT) {
	263	bcma_err(bus, "No SPROM available\n");
	264	} else if (err)
	265	bcma_err(bus, "Failed to get SPROM: %d\n", err);
	266
8369ae33	267	/* Init CC core */
6d5cfc9f	268	core = bcma_find_core(bus, bcma_cc_core_id(bus));
8369ae33 RM	269	if (core) {
	270	bus->drv_cc.core = core;
	271	bcma_core_chipcommon_init(&bus->drv_cc);
	272	}
	273
21e0534a HM	274	/* Init MIPS core */
	275	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	276	if (core) {
	277	bus->drv_mips.core = core;
	278	bcma_core_mips_init(&bus->drv_mips);
	279	}
	280
8369ae33	281	/* Init PCIE core */
dfae7143 HM	282	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
	283	if (core) {
	284	bus->drv_pci[0].core = core;
	285	bcma_core_pci_init(&bus->drv_pci[0]);
	286	}
	287
	288	/* Init PCIE core */
	289	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
8369ae33	290	if (core) {
dfae7143 HM	291	bus->drv_pci[1].core = core;
dfae7143 HM	292	bcma_core_pci_init(&bus->drv_pci[1]);
8369ae33 RM	293	}
8369ae33 RM	294
e1ac4b40 RM	295	/* Init GBIT MAC COMMON core */
	296	core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	297	if (core) {
	298	bus->drv_gmac_cmn.core = core;
	299	bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
	300	}
	301
8369ae33 RM	302	/* Register found cores */
	303	bcma_register_cores(bus);
	304
3d9d8af3	305	bcma_info(bus, "Bus registered\n");
8369ae33 RM	306
	307	return 0;
	308	}
8369ae33 RM	309
	310	void bcma_bus_unregister(struct bcma_bus *bus)
	311	{
ee915927	312	struct bcma_device *cores[3];
c50ae947 HM	313	int err;
	314
	315	err = bcma_gpio_unregister(&bus->drv_cc);
	316	if (err == -EBUSY)
	317	bcma_err(bus, "Some GPIOs are still in use.\n");
	318	else if (err)
	319	bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
ee915927 SSJ	320
	321	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	322	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
	323	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	324
8369ae33	325	bcma_unregister_cores(bus);
ee915927 SSJ	326
	327	kfree(cores[2]);
	328	kfree(cores[1]);
	329	kfree(cores[0]);
8369ae33	330	}
8369ae33	331
517f43e5 HM	332	int __init bcma_bus_early_register(struct bcma_bus *bus,
	333	struct bcma_device *core_cc,
	334	struct bcma_device *core_mips)
	335	{
	336	int err;
	337	struct bcma_device *core;
	338	struct bcma_device_id match;
	339
	340	bcma_init_bus(bus);
	341
	342	match.manuf = BCMA_MANUF_BCM;
6d5cfc9f	343	match.id = bcma_cc_core_id(bus);
517f43e5 HM	344	match.class = BCMA_CL_SIM;
	345	match.rev = BCMA_ANY_REV;
	346
	347	/* Scan for chip common core */
	348	err = bcma_bus_scan_early(bus, &match, core_cc);
	349	if (err) {
3d9d8af3	350	bcma_err(bus, "Failed to scan for common core: %d\n", err);
517f43e5 HM	351	return -1;
	352	}
	353
	354	match.manuf = BCMA_MANUF_MIPS;
	355	match.id = BCMA_CORE_MIPS_74K;
	356	match.class = BCMA_CL_SIM;
	357	match.rev = BCMA_ANY_REV;
	358
	359	/* Scan for mips core */
	360	err = bcma_bus_scan_early(bus, &match, core_mips);
	361	if (err) {
3d9d8af3	362	bcma_err(bus, "Failed to scan for mips core: %d\n", err);
517f43e5 HM	363	return -1;
	364	}
	365
49655bb8	366	/* Early init CC core */
6d5cfc9f	367	core = bcma_find_core(bus, bcma_cc_core_id(bus));
517f43e5 HM	368	if (core) {
517f43e5 HM	369	bus->drv_cc.core = core;
49655bb8	370	bcma_core_chipcommon_early_init(&bus->drv_cc);
517f43e5 HM	371	}
517f43e5 HM	372
49655bb8	373	/* Early init MIPS core */
21e0534a HM	374	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	375	if (core) {
	376	bus->drv_mips.core = core;
49655bb8	377	bcma_core_mips_early_init(&bus->drv_mips);
21e0534a HM	378	}
21e0534a HM	379
3d9d8af3	380	bcma_info(bus, "Early bus registered\n");
517f43e5 HM	381
	382	return 0;
	383	}
	384
775ab521	385	#ifdef CONFIG_PM
685a4ef0 LT	386	int bcma_bus_suspend(struct bcma_bus *bus)
685a4ef0 LT	387	{
7d5869e7 LT	388	struct bcma_device *core;
	389
	390	list_for_each_entry(core, &bus->cores, list) {
	391	struct device_driver *drv = core->dev.driver;
	392	if (drv) {
	393	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	394	if (adrv->suspend)
	395	adrv->suspend(core);
	396	}
	397	}
685a4ef0 LT	398	return 0;
	399	}
	400
775ab521 RM	401	int bcma_bus_resume(struct bcma_bus *bus)
	402	{
	403	struct bcma_device *core;
	404
	405	/* Init CC core */
6d5cfc9f	406	if (bus->drv_cc.core) {
775ab521 RM	407	bus->drv_cc.setup_done = false;
	408	bcma_core_chipcommon_init(&bus->drv_cc);
	409	}
	410
7d5869e7 LT	411	list_for_each_entry(core, &bus->cores, list) {
	412	struct device_driver *drv = core->dev.driver;
	413	if (drv) {
	414	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	415	if (adrv->resume)
	416	adrv->resume(core);
	417	}
	418	}
	419
775ab521 RM	420	return 0;
	421	}
	422	#endif
	423
8369ae33 RM	424	int __bcma_driver_register(struct bcma_driver drv, struct module owner)
	425	{
	426	drv->drv.name = drv->name;
	427	drv->drv.bus = &bcma_bus_type;
	428	drv->drv.owner = owner;
	429
	430	return driver_register(&drv->drv);
	431	}
	432	EXPORT_SYMBOL_GPL(__bcma_driver_register);
	433
	434	void bcma_driver_unregister(struct bcma_driver *drv)
	435	{
	436	driver_unregister(&drv->drv);
	437	}
	438	EXPORT_SYMBOL_GPL(bcma_driver_unregister);
	439
	440	static int bcma_bus_match(struct device dev, struct device_driver drv)
	441	{
	442	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	443	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	444	const struct bcma_device_id *cid = &core->id;
	445	const struct bcma_device_id *did;
	446
	447	for (did = adrv->id_table; did->manuf \|\| did->id \|\| did->rev; did++) {
	448	if ((did->manuf == cid->manuf \|\| did->manuf == BCMA_ANY_MANUF) &&
	449	(did->id == cid->id \|\| did->id == BCMA_ANY_ID) &&
	450	(did->rev == cid->rev \|\| did->rev == BCMA_ANY_REV) &&
	451	(did->class == cid->class \|\| did->class == BCMA_ANY_CLASS))
	452	return 1;
	453	}
	454	return 0;
	455	}
	456
	457	static int bcma_device_probe(struct device *dev)
	458	{
	459	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	460	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	461	drv);
	462	int err = 0;
	463
	464	if (adrv->probe)
	465	err = adrv->probe(core);
	466
	467	return err;
	468	}
	469
	470	static int bcma_device_remove(struct device *dev)
	471	{
	472	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	473	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	474	drv);
	475
	476	if (adrv->remove)
	477	adrv->remove(core);
	478
	479	return 0;
	480	}
	481
886b66ef DW	482	static int bcma_device_uevent(struct device dev, struct kobj_uevent_env env)
	483	{
	484	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	485
	486	return add_uevent_var(env,
	487	"MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
	488	core->id.manuf, core->id.id,
	489	core->id.rev, core->id.class);
	490	}
	491
8369ae33 RM	492	static int __init bcma_modinit(void)
	493	{
	494	int err;
	495
	496	err = bus_register(&bcma_bus_type);
	497	if (err)
	498	return err;
	499
	500	#ifdef CONFIG_BCMA_HOST_PCI
	501	err = bcma_host_pci_init();
	502	if (err) {
	503	pr_err("PCI host initialization failed\n");
	504	err = 0;
	505	}
	506	#endif
	507
	508	return err;
	509	}
	510	fs_initcall(bcma_modinit);
	511
	512	static void __exit bcma_modexit(void)
	513	{
	514	#ifdef CONFIG_BCMA_HOST_PCI
	515	bcma_host_pci_exit();
	516	#endif
	517	bus_unregister(&bcma_bus_type);
	518	}
	519	module_exit(bcma_modexit)