mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 20:26:15 +02:00
9a462204d1
This watchdog driver should work with SoC having a PMU. This fixes #11720. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34323 3c298f89-4303-0410-b956-a3cf2f4a3e73
123 lines
3.3 KiB
Diff
123 lines
3.3 KiB
Diff
--- a/drivers/ssb/embedded.c
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+++ b/drivers/ssb/embedded.c
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@@ -4,11 +4,13 @@
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*
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* Copyright 2005-2008, Broadcom Corporation
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* Copyright 2006-2008, Michael Buesch <m@bues.ch>
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+ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
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*
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* Licensed under the GNU/GPL. See COPYING for details.
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*/
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#include <linux/export.h>
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+#include <linux/platform_device.h>
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb_embedded.h>
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#include <linux/ssb/ssb_driver_pci.h>
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@@ -32,6 +34,39 @@ int ssb_watchdog_timer_set(struct ssb_bu
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}
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EXPORT_SYMBOL(ssb_watchdog_timer_set);
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+int ssb_watchdog_register(struct ssb_bus *bus)
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+{
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+ struct bcm47xx_wdt wdt = {};
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+ struct platform_device *pdev;
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+
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+ if (ssb_chipco_available(&bus->chipco)) {
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+ wdt.driver_data = &bus->chipco;
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+ wdt.timer_set = ssb_chipco_watchdog_timer_set_wdt;
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+ wdt.timer_set_ms = ssb_chipco_watchdog_timer_set_ms;
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+ wdt.max_timer_ms = bus->chipco.max_timer_ms;
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+ } else if (ssb_extif_available(&bus->extif)) {
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+ wdt.driver_data = &bus->extif;
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+ wdt.timer_set = ssb_extif_watchdog_timer_set_wdt;
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+ wdt.timer_set_ms = ssb_extif_watchdog_timer_set_ms;
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+ wdt.max_timer_ms = SSB_EXTIF_WATCHDOG_MAX_TIMER_MS;
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+ } else {
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+ return -ENODEV;
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+ }
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+
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+ pdev = platform_device_register_data(NULL, "bcm47xx-wdt",
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+ bus->busnumber, &wdt,
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+ sizeof(wdt));
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+ if (IS_ERR(pdev)) {
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+ ssb_dprintk(KERN_INFO PFX
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+ "can not register watchdog device, err: %li\n",
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+ PTR_ERR(pdev));
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+ return PTR_ERR(pdev);
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+ }
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+
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+ bus->watchdog = pdev;
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+ return 0;
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+}
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+
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u32 ssb_gpio_in(struct ssb_bus *bus, u32 mask)
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{
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unsigned long flags;
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--- a/drivers/ssb/main.c
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+++ b/drivers/ssb/main.c
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@@ -13,6 +13,7 @@
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#include <linux/delay.h>
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#include <linux/io.h>
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#include <linux/module.h>
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+#include <linux/platform_device.h>
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#include <linux/ssb/ssb.h>
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#include <linux/ssb/ssb_regs.h>
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#include <linux/ssb/ssb_driver_gige.h>
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@@ -434,6 +435,11 @@ static void ssb_devices_unregister(struc
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if (sdev->dev)
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device_unregister(sdev->dev);
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}
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+
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+#ifdef CONFIG_SSB_EMBEDDED
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+ if (bus->bustype == SSB_BUSTYPE_SSB)
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+ platform_device_unregister(bus->watchdog);
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+#endif
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}
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void ssb_bus_unregister(struct ssb_bus *bus)
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@@ -579,6 +585,8 @@ static int __devinit ssb_attach_queued_b
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if (err)
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goto error;
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ssb_pcicore_init(&bus->pcicore);
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+ if (bus->bustype == SSB_BUSTYPE_SSB)
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+ ssb_watchdog_register(bus);
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ssb_bus_may_powerdown(bus);
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err = ssb_devices_register(bus);
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--- a/drivers/ssb/ssb_private.h
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+++ b/drivers/ssb/ssb_private.h
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@@ -246,4 +246,14 @@ static inline u32 ssb_extif_watchdog_tim
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return 0;
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}
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#endif
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+
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+#ifdef CONFIG_SSB_EMBEDDED
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+extern int ssb_watchdog_register(struct ssb_bus *bus);
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+#else /* CONFIG_SSB_EMBEDDED */
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+static inline int ssb_watchdog_register(struct ssb_bus *bus)
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+{
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+ return 0;
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+}
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+#endif /* CONFIG_SSB_EMBEDDED */
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+
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#endif /* LINUX_SSB_PRIVATE_H_ */
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--- a/include/linux/ssb/ssb.h
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+++ b/include/linux/ssb/ssb.h
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@@ -8,6 +8,7 @@
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#include <linux/pci.h>
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#include <linux/mod_devicetable.h>
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#include <linux/dma-mapping.h>
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+#include <linux/platform_device.h>
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#include <linux/ssb/ssb_regs.h>
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@@ -432,6 +433,7 @@ struct ssb_bus {
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#ifdef CONFIG_SSB_EMBEDDED
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/* Lock for GPIO register access. */
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spinlock_t gpio_lock;
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+ struct platform_device *watchdog;
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#endif /* EMBEDDED */
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/* Internal-only stuff follows. Do not touch. */
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