[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 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 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 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 struct device_attribute bcma_device_attrs[] = {
	__ATTR_RO(manuf),
	__ATTR_RO(id),
	__ATTR_RO(rev),
	__ATTR_RO(class),
	__ATTR_NULL,
};

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_attrs	= bcma_device_attrs,
};

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);
			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 -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);
	}

	/* 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	}
	33	static ssize_t id_show(struct device dev, struct device_attribute attr, char *buf)
	34	{
	35	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	36	return sprintf(buf, "0x%03X\n", core->id.id);
	37	}
	38	static ssize_t rev_show(struct device dev, struct device_attribute attr, char *buf)
	39	{
	40	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	41	return sprintf(buf, "0x%02X\n", core->id.rev);
	42	}
	43	static ssize_t class_show(struct device dev, struct device_attribute attr, char *buf)
	44	{
	45	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	46	return sprintf(buf, "0x%X\n", core->id.class);
	47	}
	48	static struct device_attribute bcma_device_attrs[] = {
	49	__ATTR_RO(manuf),
	50	__ATTR_RO(id),
	51	__ATTR_RO(rev),
	52	__ATTR_RO(class),
	53	__ATTR_NULL,
	54	};
	55
	56	static struct bus_type bcma_bus_type = {
	57	.name = "bcma",
	58	.match = bcma_bus_match,
	59	.probe = bcma_device_probe,
	60	.remove = bcma_device_remove,
886b66ef	61	.uevent = bcma_device_uevent,
8369ae33 RM	62	.dev_attrs = bcma_device_attrs,
	63	};
	64
6d5cfc9f RM	65	static u16 bcma_cc_core_id(struct bcma_bus *bus)
	66	{
	67	if (bus->chipinfo.id == BCMA_CHIP_ID_BCM4706)
	68	return BCMA_CORE_4706_CHIPCOMMON;
	69	return BCMA_CORE_CHIPCOMMON;
	70	}
	71
1c9351cf	72	struct bcma_device bcma_find_core(struct bcma_bus bus, u16 coreid)
8369ae33 RM	73	{
	74	struct bcma_device *core;
	75
	76	list_for_each_entry(core, &bus->cores, list) {
	77	if (core->id.id == coreid)
	78	return core;
	79	}
	80	return NULL;
	81	}
1c9351cf	82	EXPORT_SYMBOL_GPL(bcma_find_core);
8369ae33	83
929a03ae HM	84	struct bcma_device bcma_find_core_unit(struct bcma_bus bus, u16 coreid,
929a03ae HM	85	u8 unit)
dfae7143 HM	86	{
	87	struct bcma_device *core;
	88
	89	list_for_each_entry(core, &bus->cores, list) {
	90	if (core->id.id == coreid && core->core_unit == unit)
	91	return core;
	92	}
	93	return NULL;
	94	}
	95
88f9b65d RM	96	bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value,
	97	int timeout)
	98	{
	99	unsigned long deadline = jiffies + timeout;
	100	u32 val;
	101
	102	do {
	103	val = bcma_read32(core, reg);
	104	if ((val & mask) == value)
	105	return true;
	106	cpu_relax();
	107	udelay(10);
	108	} while (!time_after_eq(jiffies, deadline));
	109
	110	bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg);
	111
	112	return false;
	113	}
	114
8369ae33 RM	115	static void bcma_release_core_dev(struct device *dev)
	116	{
	117	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
ecd177c2 HM	118	if (core->io_addr)
	119	iounmap(core->io_addr);
	120	if (core->io_wrap)
	121	iounmap(core->io_wrap);
8369ae33 RM	122	kfree(core);
	123	}
	124
	125	static int bcma_register_cores(struct bcma_bus *bus)
	126	{
	127	struct bcma_device *core;
	128	int err, dev_id = 0;
	129
	130	list_for_each_entry(core, &bus->cores, list) {
	131	/* We support that cores ourself */
	132	switch (core->id.id) {
6d5cfc9f	133	case BCMA_CORE_4706_CHIPCOMMON:
8369ae33 RM	134	case BCMA_CORE_CHIPCOMMON:
	135	case BCMA_CORE_PCI:
	136	case BCMA_CORE_PCIE:
21e0534a	137	case BCMA_CORE_MIPS_74K:
e1ac4b40	138	case BCMA_CORE_4706_MAC_GBIT_COMMON:
8369ae33 RM	139	continue;
	140	}
	141
10419d08 RM	142	/* Only first GMAC core on BCM4706 is connected and working */
	143	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
	144	core->core_unit > 0)
	145	continue;
	146
8369ae33 RM	147	core->dev.release = bcma_release_core_dev;
8369ae33 RM	148	core->dev.bus = &bcma_bus_type;
8f9ada4f	149	dev_set_name(&core->dev, "bcma%d:%d", bus->num, dev_id);
8369ae33 RM	150
	151	switch (bus->hosttype) {
	152	case BCMA_HOSTTYPE_PCI:
	153	core->dev.parent = &bus->host_pci->dev;
1bdcd095 RM	154	core->dma_dev = &bus->host_pci->dev;
1bdcd095 RM	155	core->irq = bus->host_pci->irq;
8369ae33	156	break;
ecd177c2 HM	157	case BCMA_HOSTTYPE_SOC:
	158	core->dev.dma_mask = &core->dev.coherent_dma_mask;
	159	core->dma_dev = &core->dev;
	160	break;
8369ae33 RM	161	case BCMA_HOSTTYPE_SDIO:
	162	break;
	163	}
	164
	165	err = device_register(&core->dev);
	166	if (err) {
3d9d8af3 RM	167	bcma_err(bus,
	168	"Could not register dev for core 0x%03X\n",
	169	core->id.id);
8369ae33 RM	170	continue;
	171	}
	172	core->dev_registered = true;
	173	dev_id++;
	174	}
	175
73e4dbe4 RM	176	#ifdef CONFIG_BCMA_DRIVER_MIPS
	177	if (bus->drv_cc.pflash.present) {
	178	err = platform_device_register(&bcma_pflash_dev);
	179	if (err)
	180	bcma_err(bus, "Error registering parallel flash\n");
	181	}
	182	#endif
	183
d57ef3a6 RM	184	#ifdef CONFIG_BCMA_SFLASH
	185	if (bus->drv_cc.sflash.present) {
	186	err = platform_device_register(&bcma_sflash_dev);
	187	if (err)
	188	bcma_err(bus, "Error registering serial flash\n");
	189	}
	190	#endif
	191
371a0044 RM	192	#ifdef CONFIG_BCMA_NFLASH
	193	if (bus->drv_cc.nflash.present) {
	194	err = platform_device_register(&bcma_nflash_dev);
	195	if (err)
	196	bcma_err(bus, "Error registering NAND flash\n");
	197	}
	198	#endif
cf0936b0 HM	199	err = bcma_gpio_init(&bus->drv_cc);
	200	if (err == -ENOTSUPP)
	201	bcma_debug(bus, "GPIO driver not activated\n");
	202	else if (err)
	203	bcma_err(bus, "Error registering GPIO driver: %i\n", err);
371a0044	204
a4855f39 HM	205	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
	206	err = bcma_chipco_watchdog_register(&bus->drv_cc);
	207	if (err)
	208	bcma_err(bus, "Error registering watchdog driver\n");
	209	}
	210
8369ae33 RM	211	return 0;
	212	}
	213
	214	static void bcma_unregister_cores(struct bcma_bus *bus)
	215	{
1fffa905	216	struct bcma_device core, tmp;
8369ae33	217
1fffa905 PH	218	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
1fffa905 PH	219	list_del(&core->list);
8369ae33 RM	220	if (core->dev_registered)
	221	device_unregister(&core->dev);
	222	}
a4855f39 HM	223	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
a4855f39 HM	224	platform_device_unregister(bus->drv_cc.watchdog);
8369ae33 RM	225	}
8369ae33 RM	226
0f58a01d	227	int bcma_bus_register(struct bcma_bus *bus)
8369ae33 RM	228	{
	229	int err;
	230	struct bcma_device *core;
	231
8f9ada4f HM	232	mutex_lock(&bcma_buses_mutex);
	233	bus->num = bcma_bus_next_num++;
	234	mutex_unlock(&bcma_buses_mutex);
	235
8369ae33 RM	236	/* Scan for devices (cores) */
	237	err = bcma_bus_scan(bus);
	238	if (err) {
3d9d8af3	239	bcma_err(bus, "Failed to scan: %d\n", err);
8369ae33 RM	240	return -1;
	241	}
	242
30cfb023 HM	243	/* Early init CC core */
	244	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	245	if (core) {
	246	bus->drv_cc.core = core;
	247	bcma_core_chipcommon_early_init(&bus->drv_cc);
	248	}
	249
	250	/* Try to get SPROM */
	251	err = bcma_sprom_get(bus);
	252	if (err == -ENOENT) {
	253	bcma_err(bus, "No SPROM available\n");
	254	} else if (err)
	255	bcma_err(bus, "Failed to get SPROM: %d\n", err);
	256
8369ae33	257	/* Init CC core */
6d5cfc9f	258	core = bcma_find_core(bus, bcma_cc_core_id(bus));
8369ae33 RM	259	if (core) {
	260	bus->drv_cc.core = core;
	261	bcma_core_chipcommon_init(&bus->drv_cc);
	262	}
	263
21e0534a HM	264	/* Init MIPS core */
	265	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	266	if (core) {
	267	bus->drv_mips.core = core;
	268	bcma_core_mips_init(&bus->drv_mips);
	269	}
	270
8369ae33	271	/* Init PCIE core */
dfae7143 HM	272	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
	273	if (core) {
	274	bus->drv_pci[0].core = core;
	275	bcma_core_pci_init(&bus->drv_pci[0]);
	276	}
	277
	278	/* Init PCIE core */
	279	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
8369ae33	280	if (core) {
dfae7143 HM	281	bus->drv_pci[1].core = core;
dfae7143 HM	282	bcma_core_pci_init(&bus->drv_pci[1]);
8369ae33 RM	283	}
8369ae33 RM	284
e1ac4b40 RM	285	/* Init GBIT MAC COMMON core */
	286	core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	287	if (core) {
	288	bus->drv_gmac_cmn.core = core;
	289	bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
	290	}
	291
8369ae33 RM	292	/* Register found cores */
	293	bcma_register_cores(bus);
	294
3d9d8af3	295	bcma_info(bus, "Bus registered\n");
8369ae33 RM	296
	297	return 0;
	298	}
8369ae33 RM	299
	300	void bcma_bus_unregister(struct bcma_bus *bus)
	301	{
ee915927	302	struct bcma_device *cores[3];
c50ae947 HM	303	int err;
	304
	305	err = bcma_gpio_unregister(&bus->drv_cc);
	306	if (err == -EBUSY)
	307	bcma_err(bus, "Some GPIOs are still in use.\n");
	308	else if (err)
	309	bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
ee915927 SSJ	310
	311	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	312	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
	313	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	314
8369ae33	315	bcma_unregister_cores(bus);
ee915927 SSJ	316
	317	kfree(cores[2]);
	318	kfree(cores[1]);
	319	kfree(cores[0]);
8369ae33	320	}
8369ae33	321
517f43e5 HM	322	int __init bcma_bus_early_register(struct bcma_bus *bus,
	323	struct bcma_device *core_cc,
	324	struct bcma_device *core_mips)
	325	{
	326	int err;
	327	struct bcma_device *core;
	328	struct bcma_device_id match;
	329
	330	bcma_init_bus(bus);
	331
	332	match.manuf = BCMA_MANUF_BCM;
6d5cfc9f	333	match.id = bcma_cc_core_id(bus);
517f43e5 HM	334	match.class = BCMA_CL_SIM;
	335	match.rev = BCMA_ANY_REV;
	336
	337	/* Scan for chip common core */
	338	err = bcma_bus_scan_early(bus, &match, core_cc);
	339	if (err) {
3d9d8af3	340	bcma_err(bus, "Failed to scan for common core: %d\n", err);
517f43e5 HM	341	return -1;
	342	}
	343
	344	match.manuf = BCMA_MANUF_MIPS;
	345	match.id = BCMA_CORE_MIPS_74K;
	346	match.class = BCMA_CL_SIM;
	347	match.rev = BCMA_ANY_REV;
	348
	349	/* Scan for mips core */
	350	err = bcma_bus_scan_early(bus, &match, core_mips);
	351	if (err) {
3d9d8af3	352	bcma_err(bus, "Failed to scan for mips core: %d\n", err);
517f43e5 HM	353	return -1;
	354	}
	355
49655bb8	356	/* Early init CC core */
6d5cfc9f	357	core = bcma_find_core(bus, bcma_cc_core_id(bus));
517f43e5 HM	358	if (core) {
517f43e5 HM	359	bus->drv_cc.core = core;
49655bb8	360	bcma_core_chipcommon_early_init(&bus->drv_cc);
517f43e5 HM	361	}
517f43e5 HM	362
49655bb8	363	/* Early init MIPS core */
21e0534a HM	364	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	365	if (core) {
	366	bus->drv_mips.core = core;
49655bb8	367	bcma_core_mips_early_init(&bus->drv_mips);
21e0534a HM	368	}
21e0534a HM	369
3d9d8af3	370	bcma_info(bus, "Early bus registered\n");
517f43e5 HM	371
	372	return 0;
	373	}
	374
775ab521	375	#ifdef CONFIG_PM
685a4ef0 LT	376	int bcma_bus_suspend(struct bcma_bus *bus)
685a4ef0 LT	377	{
7d5869e7 LT	378	struct bcma_device *core;
	379
	380	list_for_each_entry(core, &bus->cores, list) {
	381	struct device_driver *drv = core->dev.driver;
	382	if (drv) {
	383	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	384	if (adrv->suspend)
	385	adrv->suspend(core);
	386	}
	387	}
685a4ef0 LT	388	return 0;
	389	}
	390
775ab521 RM	391	int bcma_bus_resume(struct bcma_bus *bus)
	392	{
	393	struct bcma_device *core;
	394
	395	/* Init CC core */
6d5cfc9f	396	if (bus->drv_cc.core) {
775ab521 RM	397	bus->drv_cc.setup_done = false;
	398	bcma_core_chipcommon_init(&bus->drv_cc);
	399	}
	400
7d5869e7 LT	401	list_for_each_entry(core, &bus->cores, list) {
	402	struct device_driver *drv = core->dev.driver;
	403	if (drv) {
	404	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	405	if (adrv->resume)
	406	adrv->resume(core);
	407	}
	408	}
	409
775ab521 RM	410	return 0;
	411	}
	412	#endif
	413
8369ae33 RM	414	int __bcma_driver_register(struct bcma_driver drv, struct module owner)
	415	{
	416	drv->drv.name = drv->name;
	417	drv->drv.bus = &bcma_bus_type;
	418	drv->drv.owner = owner;
	419
	420	return driver_register(&drv->drv);
	421	}
	422	EXPORT_SYMBOL_GPL(__bcma_driver_register);
	423
	424	void bcma_driver_unregister(struct bcma_driver *drv)
	425	{
	426	driver_unregister(&drv->drv);
	427	}
	428	EXPORT_SYMBOL_GPL(bcma_driver_unregister);
	429
	430	static int bcma_bus_match(struct device dev, struct device_driver drv)
	431	{
	432	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	433	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	434	const struct bcma_device_id *cid = &core->id;
	435	const struct bcma_device_id *did;
	436
	437	for (did = adrv->id_table; did->manuf \|\| did->id \|\| did->rev; did++) {
	438	if ((did->manuf == cid->manuf \|\| did->manuf == BCMA_ANY_MANUF) &&
	439	(did->id == cid->id \|\| did->id == BCMA_ANY_ID) &&
	440	(did->rev == cid->rev \|\| did->rev == BCMA_ANY_REV) &&
	441	(did->class == cid->class \|\| did->class == BCMA_ANY_CLASS))
	442	return 1;
	443	}
	444	return 0;
	445	}
	446
	447	static int bcma_device_probe(struct device *dev)
	448	{
	449	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	450	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	451	drv);
	452	int err = 0;
	453
	454	if (adrv->probe)
	455	err = adrv->probe(core);
	456
	457	return err;
	458	}
	459
	460	static int bcma_device_remove(struct device *dev)
	461	{
	462	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	463	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	464	drv);
	465
	466	if (adrv->remove)
	467	adrv->remove(core);
	468
	469	return 0;
	470	}
	471
886b66ef DW	472	static int bcma_device_uevent(struct device dev, struct kobj_uevent_env env)
	473	{
	474	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	475
	476	return add_uevent_var(env,
	477	"MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
	478	core->id.manuf, core->id.id,
	479	core->id.rev, core->id.class);
	480	}
	481
8369ae33 RM	482	static int __init bcma_modinit(void)
	483	{
	484	int err;
	485
	486	err = bus_register(&bcma_bus_type);
	487	if (err)
	488	return err;
	489
	490	#ifdef CONFIG_BCMA_HOST_PCI
	491	err = bcma_host_pci_init();
	492	if (err) {
	493	pr_err("PCI host initialization failed\n");
	494	err = 0;
	495	}
	496	#endif
	497
	498	return err;
	499	}
	500	fs_initcall(bcma_modinit);
	501
	502	static void __exit bcma_modexit(void)
	503	{
	504	#ifdef CONFIG_BCMA_HOST_PCI
	505	bcma_host_pci_exit();
	506	#endif
	507	bus_unregister(&bcma_bus_type);
	508	}
	509	module_exit(bcma_modexit)