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/*
* Sonics Silicon Backplane
* Embedded systems support code
*
* Copyright 2005-2008, Broadcom Corporation
* Copyright 2006-2008, Michael Buesch <m@bues.ch>
* Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
*
* Licensed under the GNU/GPL. See COPYING for details.
*/
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/ssb/ssb.h>
#include <linux/ssb/ssb_embedded.h>
#include <linux/ssb/ssb_driver_pci.h>
#include <linux/ssb/ssb_driver_gige.h>
#include <linux/pci.h>
#include "ssb_private.h"
int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks)
{
if (ssb_chipco_available(&bus->chipco)) {
ssb_chipco_watchdog_timer_set(&bus->chipco, ticks);
return 0;
}
if (ssb_extif_available(&bus->extif)) {
ssb_extif_watchdog_timer_set(&bus->extif, ticks);
return 0;
}
return -ENODEV;
}
EXPORT_SYMBOL(ssb_watchdog_timer_set);
int ssb_watchdog_register(struct ssb_bus *bus)
{
struct bcm47xx_wdt wdt = {};
struct platform_device *pdev;
if (ssb_chipco_available(&bus->chipco)) {
wdt.driver_data = &bus->chipco;
wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
wdt.timer_set_ms = ssb_chipco_watchdog_timer_set_ms;
wdt.max_timer_ms = bus->chipco.max_timer_ms;
} else if (ssb_extif_available(&bus->extif)) {
wdt.driver_data = &bus->extif;
wdt.timer_set = ssb_extif_watchdog_timer_set_wdt;
wdt.timer_set_ms = ssb_extif_watchdog_timer_set_ms;
wdt.max_timer_ms = SSB_EXTIF_WATCHDOG_MAX_TIMER_MS;
} else {
return -ENODEV;
}
pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
bus->busnumber, &wdt,
sizeof(wdt));
if (IS_ERR(pdev)) {
ssb_dbg("can not register watchdog device, err: %li\n",
PTR_ERR(pdev));
return PTR_ERR(pdev);
}
bus->watchdog = pdev;
return 0;
}
u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_in(&bus->chipco, mask);
else if (ssb_extif_available(&bus->extif))
res = ssb_extif_gpio_in(&bus->extif, mask);
else
SSB_WARN_ON(1);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_in);
u32 ssb_gpio_out(struct ssb_bus *bus, u32 mask, u32 value)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_out(&bus->chipco, mask, value);
else if (ssb_extif_available(&bus->extif))
res = ssb_extif_gpio_out(&bus->extif, mask, value);
else
SSB_WARN_ON(1);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_out);
u32 ssb_gpio_outen(struct ssb_bus *bus, u32 mask, u32 value)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_outen(&bus->chipco, mask, value);
else if (ssb_extif_available(&bus->extif))
res = ssb_extif_gpio_outen(&bus->extif, mask, value);
else
SSB_WARN_ON(1);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_outen);
u32 ssb_gpio_control(struct ssb_bus *bus, u32 mask, u32 value)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_control(&bus->chipco, mask, value);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_control);
u32 ssb_gpio_intmask(struct ssb_bus *bus, u32 mask, u32 value)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_intmask(&bus->chipco, mask, value);
else if (ssb_extif_available(&bus->extif))
res = ssb_extif_gpio_intmask(&bus->extif, mask, value);
else
SSB_WARN_ON(1);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_intmask);
u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value)
{
unsigned long flags;
u32 res = 0;
spin_lock_irqsave(&bus->gpio_lock, flags);
if (ssb_chipco_available(&bus->chipco))
res = ssb_chipco_gpio_polarity(&bus->chipco, mask, value);
else if (ssb_extif_available(&bus->extif))
res = ssb_extif_gpio_polarity(&bus->extif, mask, value);
else
SSB_WARN_ON(1);
spin_unlock_irqrestore(&bus->gpio_lock, flags);
return res;
}
EXPORT_SYMBOL(ssb_gpio_polarity);
#ifdef CONFIG_SSB_DRIVER_GIGE
static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data)
{
struct pci_dev *pdev = (struct pci_dev *)data;
struct ssb_device *dev;
unsigned int i;
int res;
for (i = 0; i < bus->nr_devices; i++) {
dev = &(bus->devices[i]);
if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
continue;
if (!dev->dev ||
!dev->dev->driver ||
!device_is_registered(dev->dev))
continue;
res = ssb_gige_pcibios_plat_dev_init(dev, pdev);
if (res >= 0)
return res;
}
return -ENODEV;
}
#endif /* CONFIG_SSB_DRIVER_GIGE */
int ssb_pcibios_plat_dev_init(struct pci_dev *dev)
{
int err;
err = ssb_pcicore_plat_dev_init(dev);
if (!err)
return 0;
#ifdef CONFIG_SSB_DRIVER_GIGE
err = ssb_for_each_bus_call((unsigned long)dev, gige_pci_init_callback);
if (err >= 0)
return err;
#endif
/* This is not a PCI device on any SSB device. */
return -ENODEV;
}
#ifdef CONFIG_SSB_DRIVER_GIGE
static int gige_map_irq_callback(struct ssb_bus *bus, unsigned long data)
{
const struct pci_dev *pdev = (const struct pci_dev *)data;
struct ssb_device *dev;
unsigned int i;
int res;
for (i = 0; i < bus->nr_devices; i++) {
dev = &(bus->devices[i]);
if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
continue;
if (!dev->dev ||
!dev->dev->driver ||
!device_is_registered(dev->dev))
continue;
res = ssb_gige_map_irq(dev, pdev);
if (res >= 0)
return res;
}
return -ENODEV;
}
#endif /* CONFIG_SSB_DRIVER_GIGE */
int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
int res;
/* Check if this PCI device is a device on a SSB bus or device
* and return the IRQ number for it. */
res = ssb_pcicore_pcibios_map_irq(dev, slot, pin);
if (res >= 0)
return res;
#ifdef CONFIG_SSB_DRIVER_GIGE
res = ssb_for_each_bus_call((unsigned long)dev, gige_map_irq_callback);
if (res >= 0)
return res;
#endif
/* This is not a PCI device on any SSB device. */
return -ENODEV;
}