Revert "[brcm47xx] Add support for cores with slow WDT clock (bcm5354)"

This reverts commit 7467fdab387f451082c15d17ce9ae4d91d74b6ca.

SVN-Revision: 23533

diff --git a/target/linux/brcm47xx/patches-2.6.32/900-bcm47xx_wdt-noprescale.patch b/target/linux/brcm47xx/patches-2.6.32/900-bcm47xx_wdt-noprescale.patch
deleted file mode 100644 (file)
index 6bc2b12..0000000
--- a/target/linux/brcm47xx/patches-2.6.32/900-bcm47xx_wdt-noprescale.patch
+++ /dev/null
@@ -1,89 +0,0 @@
---- a/drivers/watchdog/bcm47xx_wdt.c
-+++ b/drivers/watchdog/bcm47xx_wdt.c
-@@ -31,6 +31,7 @@
- 
- #define WDT_DEFAULT_TIME      30      /* seconds */
- #define WDT_MAX_TIME          255     /* seconds */
-+#define WDT_SHIFT             15      /* 32.768 KHz on cores with slow WDT clock */
- 
- static int wdt_time = WDT_DEFAULT_TIME;
- static int nowayout = WATCHDOG_NOWAYOUT;
-@@ -50,11 +51,11 @@ static unsigned long bcm47xx_wdt_busy;
- static char expect_release;
- static struct timer_list wdt_timer;
- static atomic_t ticks;
-+static int needs_sw_scale;
- 
--static inline void bcm47xx_wdt_hw_start(void)
-+static inline void bcm47xx_wdt_hw_start(u32 ticks)
- {
--      /* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
--      ssb_watchdog_timer_set(&ssb_bcm47xx, 0xfffffff);
-+      ssb_watchdog_timer_set(&ssb_bcm47xx, ticks);
- }
- 
- static inline int bcm47xx_wdt_hw_stop(void)
-@@ -65,33 +66,34 @@ static inline int bcm47xx_wdt_hw_stop(vo
- static void bcm47xx_timer_tick(unsigned long unused)
- {
-       if (!atomic_dec_and_test(&ticks)) {
--              bcm47xx_wdt_hw_start();
-+              /* This is 2,5s on 100Mhz clock and 2s on 133 Mhz */
-+              bcm47xx_wdt_hw_start(0xfffffff);
-               mod_timer(&wdt_timer, jiffies + HZ);
-       } else {
--              printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n");
-+              printk(KERN_CRIT DRV_NAME ": Watchdog will fire soon!!!\n");
-       }
- }
- 
--static inline void bcm47xx_wdt_pet(void)
-+static void bcm47xx_wdt_pet(void)
- {
--      atomic_set(&ticks, wdt_time);
-+      if(needs_sw_scale)
-+              atomic_set(&ticks, wdt_time);
-+      else
-+              bcm47xx_wdt_hw_start(wdt_time << WDT_SHIFT);
- }
- 
- static void bcm47xx_wdt_start(void)
- {
-       bcm47xx_wdt_pet();
--      bcm47xx_timer_tick(0);
--}
--
--static void bcm47xx_wdt_pause(void)
--{
--      del_timer_sync(&wdt_timer);
--      bcm47xx_wdt_hw_stop();
-+      if(needs_sw_scale)
-+              bcm47xx_timer_tick(0);
- }
- 
- static void bcm47xx_wdt_stop(void)
- {
--      bcm47xx_wdt_pause();
-+      if(needs_sw_scale)
-+              del_timer_sync(&wdt_timer);
-+      bcm47xx_wdt_hw_stop();
- }
- 
- static int bcm47xx_wdt_settimeout(int new_time)
-@@ -243,7 +245,15 @@ static int __init bcm47xx_wdt_init(void)
-       if (bcm47xx_wdt_hw_stop() < 0)
-               return -ENODEV;
- 
--      setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      /* FIXME Other cores */
-+      if(ssb_bcm47xx.chip_id == 0x5354) {
-+              /* Slow WDT clock, no pre-scaling */
-+              needs_sw_scale = 0;
-+      } else {
-+              /* Fast WDT clock, needs software pre-scaling */
-+              needs_sw_scale = 1;
-+              setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      }
- 
-       if (bcm47xx_wdt_settimeout(wdt_time)) {
-               bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);

diff --git a/target/linux/brcm47xx/patches-2.6.34/900-bcm47xx_wdt-noprescale.patch b/target/linux/brcm47xx/patches-2.6.34/900-bcm47xx_wdt-noprescale.patch
deleted file mode 100644 (file)
index 6bc2b12..0000000
--- a/target/linux/brcm47xx/patches-2.6.34/900-bcm47xx_wdt-noprescale.patch
+++ /dev/null
@@ -1,89 +0,0 @@
---- a/drivers/watchdog/bcm47xx_wdt.c
-+++ b/drivers/watchdog/bcm47xx_wdt.c
-@@ -31,6 +31,7 @@
- 
- #define WDT_DEFAULT_TIME      30      /* seconds */
- #define WDT_MAX_TIME          255     /* seconds */
-+#define WDT_SHIFT             15      /* 32.768 KHz on cores with slow WDT clock */
- 
- static int wdt_time = WDT_DEFAULT_TIME;
- static int nowayout = WATCHDOG_NOWAYOUT;
-@@ -50,11 +51,11 @@ static unsigned long bcm47xx_wdt_busy;
- static char expect_release;
- static struct timer_list wdt_timer;
- static atomic_t ticks;
-+static int needs_sw_scale;
- 
--static inline void bcm47xx_wdt_hw_start(void)
-+static inline void bcm47xx_wdt_hw_start(u32 ticks)
- {
--      /* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
--      ssb_watchdog_timer_set(&ssb_bcm47xx, 0xfffffff);
-+      ssb_watchdog_timer_set(&ssb_bcm47xx, ticks);
- }
- 
- static inline int bcm47xx_wdt_hw_stop(void)
-@@ -65,33 +66,34 @@ static inline int bcm47xx_wdt_hw_stop(vo
- static void bcm47xx_timer_tick(unsigned long unused)
- {
-       if (!atomic_dec_and_test(&ticks)) {
--              bcm47xx_wdt_hw_start();
-+              /* This is 2,5s on 100Mhz clock and 2s on 133 Mhz */
-+              bcm47xx_wdt_hw_start(0xfffffff);
-               mod_timer(&wdt_timer, jiffies + HZ);
-       } else {
--              printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n");
-+              printk(KERN_CRIT DRV_NAME ": Watchdog will fire soon!!!\n");
-       }
- }
- 
--static inline void bcm47xx_wdt_pet(void)
-+static void bcm47xx_wdt_pet(void)
- {
--      atomic_set(&ticks, wdt_time);
-+      if(needs_sw_scale)
-+              atomic_set(&ticks, wdt_time);
-+      else
-+              bcm47xx_wdt_hw_start(wdt_time << WDT_SHIFT);
- }
- 
- static void bcm47xx_wdt_start(void)
- {
-       bcm47xx_wdt_pet();
--      bcm47xx_timer_tick(0);
--}
--
--static void bcm47xx_wdt_pause(void)
--{
--      del_timer_sync(&wdt_timer);
--      bcm47xx_wdt_hw_stop();
-+      if(needs_sw_scale)
-+              bcm47xx_timer_tick(0);
- }
- 
- static void bcm47xx_wdt_stop(void)
- {
--      bcm47xx_wdt_pause();
-+      if(needs_sw_scale)
-+              del_timer_sync(&wdt_timer);
-+      bcm47xx_wdt_hw_stop();
- }
- 
- static int bcm47xx_wdt_settimeout(int new_time)
-@@ -243,7 +245,15 @@ static int __init bcm47xx_wdt_init(void)
-       if (bcm47xx_wdt_hw_stop() < 0)
-               return -ENODEV;
- 
--      setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      /* FIXME Other cores */
-+      if(ssb_bcm47xx.chip_id == 0x5354) {
-+              /* Slow WDT clock, no pre-scaling */
-+              needs_sw_scale = 0;
-+      } else {
-+              /* Fast WDT clock, needs software pre-scaling */
-+              needs_sw_scale = 1;
-+              setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      }
- 
-       if (bcm47xx_wdt_settimeout(wdt_time)) {
-               bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);

diff --git a/target/linux/brcm47xx/patches-2.6.35/900-bcm47xx_wdt-noprescale.patch b/target/linux/brcm47xx/patches-2.6.35/900-bcm47xx_wdt-noprescale.patch
deleted file mode 100644 (file)
index 6bc2b12..0000000
--- a/target/linux/brcm47xx/patches-2.6.35/900-bcm47xx_wdt-noprescale.patch
+++ /dev/null
@@ -1,89 +0,0 @@
---- a/drivers/watchdog/bcm47xx_wdt.c
-+++ b/drivers/watchdog/bcm47xx_wdt.c
-@@ -31,6 +31,7 @@
- 
- #define WDT_DEFAULT_TIME      30      /* seconds */
- #define WDT_MAX_TIME          255     /* seconds */
-+#define WDT_SHIFT             15      /* 32.768 KHz on cores with slow WDT clock */
- 
- static int wdt_time = WDT_DEFAULT_TIME;
- static int nowayout = WATCHDOG_NOWAYOUT;
-@@ -50,11 +51,11 @@ static unsigned long bcm47xx_wdt_busy;
- static char expect_release;
- static struct timer_list wdt_timer;
- static atomic_t ticks;
-+static int needs_sw_scale;
- 
--static inline void bcm47xx_wdt_hw_start(void)
-+static inline void bcm47xx_wdt_hw_start(u32 ticks)
- {
--      /* this is 2,5s on 100Mhz clock  and 2s on 133 Mhz */
--      ssb_watchdog_timer_set(&ssb_bcm47xx, 0xfffffff);
-+      ssb_watchdog_timer_set(&ssb_bcm47xx, ticks);
- }
- 
- static inline int bcm47xx_wdt_hw_stop(void)
-@@ -65,33 +66,34 @@ static inline int bcm47xx_wdt_hw_stop(vo
- static void bcm47xx_timer_tick(unsigned long unused)
- {
-       if (!atomic_dec_and_test(&ticks)) {
--              bcm47xx_wdt_hw_start();
-+              /* This is 2,5s on 100Mhz clock and 2s on 133 Mhz */
-+              bcm47xx_wdt_hw_start(0xfffffff);
-               mod_timer(&wdt_timer, jiffies + HZ);
-       } else {
--              printk(KERN_CRIT DRV_NAME "Watchdog will fire soon!!!\n");
-+              printk(KERN_CRIT DRV_NAME ": Watchdog will fire soon!!!\n");
-       }
- }
- 
--static inline void bcm47xx_wdt_pet(void)
-+static void bcm47xx_wdt_pet(void)
- {
--      atomic_set(&ticks, wdt_time);
-+      if(needs_sw_scale)
-+              atomic_set(&ticks, wdt_time);
-+      else
-+              bcm47xx_wdt_hw_start(wdt_time << WDT_SHIFT);
- }
- 
- static void bcm47xx_wdt_start(void)
- {
-       bcm47xx_wdt_pet();
--      bcm47xx_timer_tick(0);
--}
--
--static void bcm47xx_wdt_pause(void)
--{
--      del_timer_sync(&wdt_timer);
--      bcm47xx_wdt_hw_stop();
-+      if(needs_sw_scale)
-+              bcm47xx_timer_tick(0);
- }
- 
- static void bcm47xx_wdt_stop(void)
- {
--      bcm47xx_wdt_pause();
-+      if(needs_sw_scale)
-+              del_timer_sync(&wdt_timer);
-+      bcm47xx_wdt_hw_stop();
- }
- 
- static int bcm47xx_wdt_settimeout(int new_time)
-@@ -243,7 +245,15 @@ static int __init bcm47xx_wdt_init(void)
-       if (bcm47xx_wdt_hw_stop() < 0)
-               return -ENODEV;
- 
--      setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      /* FIXME Other cores */
-+      if(ssb_bcm47xx.chip_id == 0x5354) {
-+              /* Slow WDT clock, no pre-scaling */
-+              needs_sw_scale = 0;
-+      } else {
-+              /* Fast WDT clock, needs software pre-scaling */
-+              needs_sw_scale = 1;
-+              setup_timer(&wdt_timer, bcm47xx_timer_tick, 0L);
-+      }
- 
-       if (bcm47xx_wdt_settimeout(wdt_time)) {
-               bcm47xx_wdt_settimeout(WDT_DEFAULT_TIME);