[linux-2.6-block.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 bool bcma_is_core_needed_early(u16 core_id)
{
	switch (core_id) {
	case BCMA_CORE_NS_NAND:
	case BCMA_CORE_NS_QSPI:
		return true;
	}

	return false;
}

static void bcma_register_core(struct bcma_bus *bus, struct bcma_device *core)
{
	int err;

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

	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);
		return;
	}
	core->dev_registered = true;
}

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

	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_NS_CHIPCOMMON_B:
		case BCMA_CORE_PCI:
		case BCMA_CORE_PCIE:
		case BCMA_CORE_PCIE2:
		case BCMA_CORE_MIPS_74K:
		case BCMA_CORE_4706_MAC_GBIT_COMMON:
			continue;
		}

		/* Early cores were already registered */
		if (bcma_is_core_needed_early(core->id.id))
			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;

		bcma_register_core(bus, core);
	}

#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);
	}

	/* Cores providing flash access go before SPROM init */
	list_for_each_entry(core, &bus->cores, list) {
		if (bcma_is_core_needed_early(core->id.id))
			bcma_register_core(bus, core);
	}

	/* 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 CC core */
	core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B);
	if (core) {
		bus->drv_cc_b.core = core;
		bcma_core_chipcommon_b_init(&bus->drv_cc_b);
	}

	/* 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 PCIe Gen 2 core */
	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE2, 0);
	if (core) {
		bus->drv_pcie2.core = core;
		bcma_core_pcie2_init(&bus->drv_pcie2);
	}

	/* 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_devices(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);

	bcma_core_chipcommon_b_free(&bus->drv_cc_b);

	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;

	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
37a7f876 RM	123	static bool bcma_is_core_needed_early(u16 core_id)
	124	{
	125	switch (core_id) {
	126	case BCMA_CORE_NS_NAND:
	127	case BCMA_CORE_NS_QSPI:
	128	return true;
	129	}
	130
	131	return false;
	132	}
	133
6e094bd8 RM	134	static void bcma_register_core(struct bcma_bus bus, struct bcma_device core)
	135	{
	136	int err;
	137
	138	core->dev.release = bcma_release_core_dev;
	139	core->dev.bus = &bcma_bus_type;
	140	dev_set_name(&core->dev, "bcma%d:%d", bus->num, core->core_index);
	141
	142	switch (bus->hosttype) {
	143	case BCMA_HOSTTYPE_PCI:
	144	core->dev.parent = &bus->host_pci->dev;
	145	core->dma_dev = &bus->host_pci->dev;
	146	core->irq = bus->host_pci->irq;
	147	break;
	148	case BCMA_HOSTTYPE_SOC:
	149	core->dev.dma_mask = &core->dev.coherent_dma_mask;
	150	core->dma_dev = &core->dev;
	151	break;
	152	case BCMA_HOSTTYPE_SDIO:
	153	break;
	154	}
	155
	156	err = device_register(&core->dev);
	157	if (err) {
	158	bcma_err(bus, "Could not register dev for core 0x%03X\n",
	159	core->id.id);
	160	put_device(&core->dev);
	161	return;
	162	}
	163	core->dev_registered = true;
	164	}
	165
	166	static int bcma_register_devices(struct bcma_bus *bus)
8369ae33 RM	167	{
8369ae33 RM	168	struct bcma_device *core;
6e094bd8	169	int err;
8369ae33 RM	170
	171	list_for_each_entry(core, &bus->cores, list) {
	172	/* We support that cores ourself */
	173	switch (core->id.id) {
6d5cfc9f	174	case BCMA_CORE_4706_CHIPCOMMON:
8369ae33	175	case BCMA_CORE_CHIPCOMMON:
1716bcf3	176	case BCMA_CORE_NS_CHIPCOMMON_B:
8369ae33 RM	177	case BCMA_CORE_PCI:
8369ae33 RM	178	case BCMA_CORE_PCIE:
f473832f	179	case BCMA_CORE_PCIE2:
21e0534a	180	case BCMA_CORE_MIPS_74K:
e1ac4b40	181	case BCMA_CORE_4706_MAC_GBIT_COMMON:
8369ae33 RM	182	continue;
	183	}
	184
37a7f876 RM	185	/* Early cores were already registered */
	186	if (bcma_is_core_needed_early(core->id.id))
	187	continue;
	188
10419d08 RM	189	/* Only first GMAC core on BCM4706 is connected and working */
	190	if (core->id.id == BCMA_CORE_4706_MAC_GBIT &&
	191	core->core_unit > 0)
	192	continue;
	193
6e094bd8	194	bcma_register_core(bus, core);
8369ae33 RM	195	}
8369ae33 RM	196
73e4dbe4 RM	197	#ifdef CONFIG_BCMA_DRIVER_MIPS
	198	if (bus->drv_cc.pflash.present) {
	199	err = platform_device_register(&bcma_pflash_dev);
	200	if (err)
	201	bcma_err(bus, "Error registering parallel flash\n");
	202	}
	203	#endif
	204
d57ef3a6 RM	205	#ifdef CONFIG_BCMA_SFLASH
	206	if (bus->drv_cc.sflash.present) {
	207	err = platform_device_register(&bcma_sflash_dev);
	208	if (err)
	209	bcma_err(bus, "Error registering serial flash\n");
	210	}
	211	#endif
	212
371a0044 RM	213	#ifdef CONFIG_BCMA_NFLASH
	214	if (bus->drv_cc.nflash.present) {
	215	err = platform_device_register(&bcma_nflash_dev);
	216	if (err)
	217	bcma_err(bus, "Error registering NAND flash\n");
	218	}
	219	#endif
cf0936b0 HM	220	err = bcma_gpio_init(&bus->drv_cc);
	221	if (err == -ENOTSUPP)
	222	bcma_debug(bus, "GPIO driver not activated\n");
	223	else if (err)
	224	bcma_err(bus, "Error registering GPIO driver: %i\n", err);
371a0044	225
a4855f39 HM	226	if (bus->hosttype == BCMA_HOSTTYPE_SOC) {
	227	err = bcma_chipco_watchdog_register(&bus->drv_cc);
	228	if (err)
	229	bcma_err(bus, "Error registering watchdog driver\n");
	230	}
	231
8369ae33 RM	232	return 0;
	233	}
	234
	235	static void bcma_unregister_cores(struct bcma_bus *bus)
	236	{
1fffa905	237	struct bcma_device core, tmp;
8369ae33	238
1fffa905 PH	239	list_for_each_entry_safe(core, tmp, &bus->cores, list) {
1fffa905 PH	240	list_del(&core->list);
8369ae33 RM	241	if (core->dev_registered)
	242	device_unregister(&core->dev);
	243	}
a4855f39 HM	244	if (bus->hosttype == BCMA_HOSTTYPE_SOC)
a4855f39 HM	245	platform_device_unregister(bus->drv_cc.watchdog);
8369ae33 RM	246	}
8369ae33 RM	247
0f58a01d	248	int bcma_bus_register(struct bcma_bus *bus)
8369ae33 RM	249	{
	250	int err;
	251	struct bcma_device *core;
	252
8f9ada4f HM	253	mutex_lock(&bcma_buses_mutex);
	254	bus->num = bcma_bus_next_num++;
	255	mutex_unlock(&bcma_buses_mutex);
	256
8369ae33 RM	257	/* Scan for devices (cores) */
	258	err = bcma_bus_scan(bus);
	259	if (err) {
3d9d8af3	260	bcma_err(bus, "Failed to scan: %d\n", err);
1cabf7db	261	return err;
8369ae33 RM	262	}
8369ae33 RM	263
30cfb023 HM	264	/* Early init CC core */
	265	core = bcma_find_core(bus, bcma_cc_core_id(bus));
	266	if (core) {
	267	bus->drv_cc.core = core;
	268	bcma_core_chipcommon_early_init(&bus->drv_cc);
	269	}
	270
37a7f876 RM	271	/* Cores providing flash access go before SPROM init */
	272	list_for_each_entry(core, &bus->cores, list) {
	273	if (bcma_is_core_needed_early(core->id.id))
	274	bcma_register_core(bus, core);
	275	}
	276
30cfb023 HM	277	/* Try to get SPROM */
	278	err = bcma_sprom_get(bus);
	279	if (err == -ENOENT) {
	280	bcma_err(bus, "No SPROM available\n");
	281	} else if (err)
	282	bcma_err(bus, "Failed to get SPROM: %d\n", err);
	283
8369ae33	284	/* Init CC core */
6d5cfc9f	285	core = bcma_find_core(bus, bcma_cc_core_id(bus));
8369ae33 RM	286	if (core) {
	287	bus->drv_cc.core = core;
	288	bcma_core_chipcommon_init(&bus->drv_cc);
	289	}
	290
1716bcf3 HM	291	/* Init CC core */
	292	core = bcma_find_core(bus, BCMA_CORE_NS_CHIPCOMMON_B);
	293	if (core) {
	294	bus->drv_cc_b.core = core;
	295	bcma_core_chipcommon_b_init(&bus->drv_cc_b);
	296	}
	297
21e0534a HM	298	/* Init MIPS core */
	299	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	300	if (core) {
	301	bus->drv_mips.core = core;
	302	bcma_core_mips_init(&bus->drv_mips);
	303	}
	304
8369ae33	305	/* Init PCIE core */
dfae7143 HM	306	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 0);
	307	if (core) {
	308	bus->drv_pci[0].core = core;
	309	bcma_core_pci_init(&bus->drv_pci[0]);
	310	}
	311
	312	/* Init PCIE core */
	313	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE, 1);
8369ae33	314	if (core) {
dfae7143 HM	315	bus->drv_pci[1].core = core;
dfae7143 HM	316	bcma_core_pci_init(&bus->drv_pci[1]);
8369ae33 RM	317	}
8369ae33 RM	318
f473832f RM	319	/* Init PCIe Gen 2 core */
	320	core = bcma_find_core_unit(bus, BCMA_CORE_PCIE2, 0);
	321	if (core) {
	322	bus->drv_pcie2.core = core;
	323	bcma_core_pcie2_init(&bus->drv_pcie2);
	324	}
	325
e1ac4b40 RM	326	/* Init GBIT MAC COMMON core */
	327	core = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	328	if (core) {
	329	bus->drv_gmac_cmn.core = core;
	330	bcma_core_gmac_cmn_init(&bus->drv_gmac_cmn);
	331	}
	332
8369ae33	333	/* Register found cores */
6e094bd8	334	bcma_register_devices(bus);
8369ae33	335
3d9d8af3	336	bcma_info(bus, "Bus registered\n");
8369ae33 RM	337
	338	return 0;
	339	}
8369ae33 RM	340
	341	void bcma_bus_unregister(struct bcma_bus *bus)
	342	{
ee915927	343	struct bcma_device *cores[3];
c50ae947 HM	344	int err;
	345
	346	err = bcma_gpio_unregister(&bus->drv_cc);
	347	if (err == -EBUSY)
	348	bcma_err(bus, "Some GPIOs are still in use.\n");
	349	else if (err)
	350	bcma_err(bus, "Can not unregister GPIO driver: %i\n", err);
ee915927	351
1716bcf3 HM	352	bcma_core_chipcommon_b_free(&bus->drv_cc_b);
1716bcf3 HM	353
ee915927 SSJ	354	cores[0] = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	355	cores[1] = bcma_find_core(bus, BCMA_CORE_PCIE);
	356	cores[2] = bcma_find_core(bus, BCMA_CORE_4706_MAC_GBIT_COMMON);
	357
8369ae33	358	bcma_unregister_cores(bus);
ee915927 SSJ	359
	360	kfree(cores[2]);
	361	kfree(cores[1]);
	362	kfree(cores[0]);
8369ae33	363	}
8369ae33	364
517f43e5 HM	365	int __init bcma_bus_early_register(struct bcma_bus *bus,
	366	struct bcma_device *core_cc,
	367	struct bcma_device *core_mips)
	368	{
	369	int err;
	370	struct bcma_device *core;
	371	struct bcma_device_id match;
	372
517f43e5	373	match.manuf = BCMA_MANUF_BCM;
6d5cfc9f	374	match.id = bcma_cc_core_id(bus);
517f43e5 HM	375	match.class = BCMA_CL_SIM;
	376	match.rev = BCMA_ANY_REV;
	377
	378	/* Scan for chip common core */
	379	err = bcma_bus_scan_early(bus, &match, core_cc);
	380	if (err) {
3d9d8af3	381	bcma_err(bus, "Failed to scan for common core: %d\n", err);
517f43e5 HM	382	return -1;
	383	}
	384
	385	match.manuf = BCMA_MANUF_MIPS;
	386	match.id = BCMA_CORE_MIPS_74K;
	387	match.class = BCMA_CL_SIM;
	388	match.rev = BCMA_ANY_REV;
	389
	390	/* Scan for mips core */
	391	err = bcma_bus_scan_early(bus, &match, core_mips);
	392	if (err) {
3d9d8af3	393	bcma_err(bus, "Failed to scan for mips core: %d\n", err);
517f43e5 HM	394	return -1;
	395	}
	396
49655bb8	397	/* Early init CC core */
6d5cfc9f	398	core = bcma_find_core(bus, bcma_cc_core_id(bus));
517f43e5 HM	399	if (core) {
517f43e5 HM	400	bus->drv_cc.core = core;
49655bb8	401	bcma_core_chipcommon_early_init(&bus->drv_cc);
517f43e5 HM	402	}
517f43e5 HM	403
49655bb8	404	/* Early init MIPS core */
21e0534a HM	405	core = bcma_find_core(bus, BCMA_CORE_MIPS_74K);
	406	if (core) {
	407	bus->drv_mips.core = core;
49655bb8	408	bcma_core_mips_early_init(&bus->drv_mips);
21e0534a HM	409	}
21e0534a HM	410
3d9d8af3	411	bcma_info(bus, "Early bus registered\n");
517f43e5 HM	412
	413	return 0;
	414	}
	415
775ab521	416	#ifdef CONFIG_PM
685a4ef0 LT	417	int bcma_bus_suspend(struct bcma_bus *bus)
685a4ef0 LT	418	{
7d5869e7 LT	419	struct bcma_device *core;
	420
	421	list_for_each_entry(core, &bus->cores, list) {
	422	struct device_driver *drv = core->dev.driver;
	423	if (drv) {
	424	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	425	if (adrv->suspend)
	426	adrv->suspend(core);
	427	}
	428	}
685a4ef0 LT	429	return 0;
	430	}
	431
775ab521 RM	432	int bcma_bus_resume(struct bcma_bus *bus)
	433	{
	434	struct bcma_device *core;
	435
	436	/* Init CC core */
6d5cfc9f	437	if (bus->drv_cc.core) {
775ab521 RM	438	bus->drv_cc.setup_done = false;
	439	bcma_core_chipcommon_init(&bus->drv_cc);
	440	}
	441
7d5869e7 LT	442	list_for_each_entry(core, &bus->cores, list) {
	443	struct device_driver *drv = core->dev.driver;
	444	if (drv) {
	445	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	446	if (adrv->resume)
	447	adrv->resume(core);
	448	}
	449	}
	450
775ab521 RM	451	return 0;
	452	}
	453	#endif
	454
8369ae33 RM	455	int __bcma_driver_register(struct bcma_driver drv, struct module owner)
	456	{
	457	drv->drv.name = drv->name;
	458	drv->drv.bus = &bcma_bus_type;
	459	drv->drv.owner = owner;
	460
	461	return driver_register(&drv->drv);
	462	}
	463	EXPORT_SYMBOL_GPL(__bcma_driver_register);
	464
	465	void bcma_driver_unregister(struct bcma_driver *drv)
	466	{
	467	driver_unregister(&drv->drv);
	468	}
	469	EXPORT_SYMBOL_GPL(bcma_driver_unregister);
	470
	471	static int bcma_bus_match(struct device dev, struct device_driver drv)
	472	{
	473	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	474	struct bcma_driver *adrv = container_of(drv, struct bcma_driver, drv);
	475	const struct bcma_device_id *cid = &core->id;
	476	const struct bcma_device_id *did;
	477
	478	for (did = adrv->id_table; did->manuf \|\| did->id \|\| did->rev; did++) {
	479	if ((did->manuf == cid->manuf \|\| did->manuf == BCMA_ANY_MANUF) &&
	480	(did->id == cid->id \|\| did->id == BCMA_ANY_ID) &&
	481	(did->rev == cid->rev \|\| did->rev == BCMA_ANY_REV) &&
	482	(did->class == cid->class \|\| did->class == BCMA_ANY_CLASS))
	483	return 1;
	484	}
	485	return 0;
	486	}
	487
	488	static int bcma_device_probe(struct device *dev)
	489	{
	490	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	491	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	492	drv);
	493	int err = 0;
	494
	495	if (adrv->probe)
	496	err = adrv->probe(core);
	497
	498	return err;
	499	}
	500
	501	static int bcma_device_remove(struct device *dev)
	502	{
	503	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	504	struct bcma_driver *adrv = container_of(dev->driver, struct bcma_driver,
	505	drv);
	506
	507	if (adrv->remove)
	508	adrv->remove(core);
	509
	510	return 0;
	511	}
	512
886b66ef DW	513	static int bcma_device_uevent(struct device dev, struct kobj_uevent_env env)
	514	{
	515	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
	516
	517	return add_uevent_var(env,
	518	"MODALIAS=bcma:m%04Xid%04Xrev%02Xcl%02X",
	519	core->id.manuf, core->id.id,
	520	core->id.rev, core->id.class);
	521	}
	522
8369ae33 RM	523	static int __init bcma_modinit(void)
	524	{
	525	int err;
	526
	527	err = bus_register(&bcma_bus_type);
	528	if (err)
	529	return err;
	530
	531	#ifdef CONFIG_BCMA_HOST_PCI
	532	err = bcma_host_pci_init();
	533	if (err) {
	534	pr_err("PCI host initialization failed\n");
	535	err = 0;
	536	}
	537	#endif
	538
	539	return err;
	540	}
	541	fs_initcall(bcma_modinit);
	542
	543	static void __exit bcma_modexit(void)
	544	{
	545	#ifdef CONFIG_BCMA_HOST_PCI
	546	bcma_host_pci_exit();
	547	#endif
	548	bus_unregister(&bcma_bus_type);
	549	}
	550	module_exit(bcma_modexit)