mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-05 18:38:25 +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
132 lines
3.7 KiB
Diff
132 lines
3.7 KiB
Diff
--- a/drivers/ssb/driver_chipcommon.c
|
|
+++ b/drivers/ssb/driver_chipcommon.c
|
|
@@ -4,6 +4,7 @@
|
|
*
|
|
* Copyright 2005, Broadcom Corporation
|
|
* Copyright 2006, 2007, Michael Buesch <m@bues.ch>
|
|
+ * Copyright 2012, Hauke Mehrtens <hauke@hauke-m.de>
|
|
*
|
|
* Licensed under the GNU/GPL. See COPYING for details.
|
|
*/
|
|
@@ -12,6 +13,7 @@
|
|
#include <linux/ssb/ssb_regs.h>
|
|
#include <linux/export.h>
|
|
#include <linux/pci.h>
|
|
+#include <linux/bcm47xx_wdt.h>
|
|
|
|
#include "ssb_private.h"
|
|
|
|
@@ -306,6 +308,43 @@ static u32 ssb_chipco_watchdog_get_max_t
|
|
return (1 << nb) - 1;
|
|
}
|
|
|
|
+u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt, u32 ticks)
|
|
+{
|
|
+ struct ssb_chipcommon *cc = bcm47xx_wdt_get_drvdata(wdt);
|
|
+
|
|
+ if (cc->dev->bus->bustype != SSB_BUSTYPE_SSB)
|
|
+ return 0;
|
|
+
|
|
+ return ssb_chipco_watchdog_timer_set(cc, ticks);
|
|
+}
|
|
+
|
|
+u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms)
|
|
+{
|
|
+ struct ssb_chipcommon *cc = bcm47xx_wdt_get_drvdata(wdt);
|
|
+ u32 ticks;
|
|
+
|
|
+ if (cc->dev->bus->bustype != SSB_BUSTYPE_SSB)
|
|
+ return 0;
|
|
+
|
|
+ ticks = ssb_chipco_watchdog_timer_set(cc, cc->ticks_per_ms * ms);
|
|
+ return ticks / cc->ticks_per_ms;
|
|
+}
|
|
+
|
|
+static int ssb_chipco_watchdog_ticks_per_ms(struct ssb_chipcommon *cc)
|
|
+{
|
|
+ struct ssb_bus *bus = cc->dev->bus;
|
|
+
|
|
+ if (cc->capabilities & SSB_CHIPCO_CAP_PMU) {
|
|
+ /* based on 32KHz ILP clock */
|
|
+ return 32;
|
|
+ } else {
|
|
+ if (cc->dev->id.revision < 18)
|
|
+ return ssb_clockspeed(bus) / 1000;
|
|
+ else
|
|
+ return ssb_chipco_alp_clock(cc) / 1000;
|
|
+ }
|
|
+}
|
|
+
|
|
void ssb_chipcommon_init(struct ssb_chipcommon *cc)
|
|
{
|
|
if (!cc->dev)
|
|
@@ -323,6 +362,11 @@ void ssb_chipcommon_init(struct ssb_chip
|
|
chipco_powercontrol_init(cc);
|
|
ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
|
|
calc_fast_powerup_delay(cc);
|
|
+
|
|
+ if (cc->dev->bus->bustype == SSB_BUSTYPE_SSB) {
|
|
+ cc->ticks_per_ms = ssb_chipco_watchdog_ticks_per_ms(cc);
|
|
+ cc->max_timer_ms = ssb_chipco_watchdog_get_max_timer(cc) / cc->ticks_per_ms;
|
|
+ }
|
|
}
|
|
|
|
void ssb_chipco_suspend(struct ssb_chipcommon *cc)
|
|
@@ -421,7 +465,7 @@ void ssb_chipco_timing_init(struct ssb_c
|
|
}
|
|
|
|
/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
|
|
-void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks)
|
|
+u32 ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks)
|
|
{
|
|
u32 maxt;
|
|
enum ssb_clkmode clkmode;
|
|
@@ -441,6 +485,7 @@ void ssb_chipco_watchdog_timer_set(struc
|
|
/* instant NMI */
|
|
chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
|
|
}
|
|
+ return ticks;
|
|
}
|
|
|
|
void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value)
|
|
--- a/drivers/ssb/ssb_private.h
|
|
+++ b/drivers/ssb/ssb_private.h
|
|
@@ -3,6 +3,7 @@
|
|
|
|
#include <linux/ssb/ssb.h>
|
|
#include <linux/types.h>
|
|
+#include <linux/bcm47xx_wdt.h>
|
|
|
|
|
|
#define PFX "ssb: "
|
|
@@ -226,4 +227,8 @@ static inline int ssb_sflash_init(struct
|
|
|
|
extern struct platform_device ssb_pflash_dev;
|
|
|
|
+extern u32 ssb_chipco_watchdog_timer_set_wdt(struct bcm47xx_wdt *wdt,
|
|
+ u32 ticks);
|
|
+extern u32 ssb_chipco_watchdog_timer_set_ms(struct bcm47xx_wdt *wdt, u32 ms);
|
|
+
|
|
#endif /* LINUX_SSB_PRIVATE_H_ */
|
|
--- a/include/linux/ssb/ssb_driver_chipcommon.h
|
|
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
|
|
@@ -607,6 +607,8 @@ struct ssb_chipcommon {
|
|
#ifdef CONFIG_SSB_SFLASH
|
|
struct bcm47xx_sflash sflash;
|
|
#endif
|
|
+ u32 ticks_per_ms;
|
|
+ u32 max_timer_ms;
|
|
};
|
|
|
|
static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
|
|
@@ -646,8 +648,7 @@ enum ssb_clkmode {
|
|
extern void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
|
|
enum ssb_clkmode mode);
|
|
|
|
-extern void ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc,
|
|
- u32 ticks);
|
|
+extern u32 ssb_chipco_watchdog_timer_set(struct ssb_chipcommon *cc, u32 ticks);
|
|
|
|
void ssb_chipco_irq_mask(struct ssb_chipcommon *cc, u32 mask, u32 value);
|
|
|