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authorRafał Miłecki <zajec5@gmail.com>2015-02-11 10:11:00 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-02-11 10:11:00 +0000
commit6bafb2f810694619ba65317cd349af3b1ca97617 (patch)
treedefc7aa2e4c43e5c7f2945e1acbca9ff3a508d5e /target/linux/bcm53xx
parent658a33688e8a250b4ca205003ff57c29abee0724 (diff)
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bcm53xx: backport bcm47xx_wdt changes to 3.18 to use this driver in future
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> SVN-Revision: 44390
Diffstat (limited to 'target/linux/bcm53xx')
-rw-r--r--target/linux/bcm53xx/config-3.181
-rw-r--r--target/linux/bcm53xx/patches-3.18/080-watchdog-bcm47xx_wdt.c-add-restart-handler-support.patch81
-rw-r--r--target/linux/bcm53xx/patches-3.18/081-watchdog-bcm47xx_wdt.c-allow-enabling-on-BCM5301X-ar.patch34
3 files changed, 116 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/config-3.18 b/target/linux/bcm53xx/config-3.18
index d08e667794..bf2b8fe818 100644
--- a/target/linux/bcm53xx/config-3.18
+++ b/target/linux/bcm53xx/config-3.18
@@ -52,6 +52,7 @@ CONFIG_B53=y
CONFIG_B53_SRAB_DRIVER=y
CONFIG_BCM47XX_NVRAM=y
CONFIG_BCM47XX_SPROM=y
+# CONFIG_BCM47XX_WDT is not set
CONFIG_BCMA=y
CONFIG_BCMA_BLOCKIO=y
CONFIG_BCMA_DEBUG=y
diff --git a/target/linux/bcm53xx/patches-3.18/080-watchdog-bcm47xx_wdt.c-add-restart-handler-support.patch b/target/linux/bcm53xx/patches-3.18/080-watchdog-bcm47xx_wdt.c-add-restart-handler-support.patch
new file mode 100644
index 0000000000..c15114cc31
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/080-watchdog-bcm47xx_wdt.c-add-restart-handler-support.patch
@@ -0,0 +1,81 @@
+From 823769d2e6622a48276bee35b2dad5ba77cbdc25 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sun, 25 Jan 2015 11:40:57 +0100
+Subject: [PATCH] watchdog: bcm47xx_wdt.c: add restart handler support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Just like in case of other watchdog drivers, use the new kernel core
+API to provide restart support.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Reviewed-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
+---
+ drivers/watchdog/bcm47xx_wdt.c | 21 ++++++++++++++++++++-
+ include/linux/bcm47xx_wdt.h | 1 +
+ 2 files changed, 21 insertions(+), 1 deletion(-)
+
+diff --git a/drivers/watchdog/bcm47xx_wdt.c b/drivers/watchdog/bcm47xx_wdt.c
+index 9816485..b28a072 100644
+--- a/drivers/watchdog/bcm47xx_wdt.c
++++ b/drivers/watchdog/bcm47xx_wdt.c
+@@ -169,6 +169,17 @@ static int bcm47xx_wdt_notify_sys(struct notifier_block *this,
+ return NOTIFY_DONE;
+ }
+
++static int bcm47xx_wdt_restart(struct notifier_block *this, unsigned long mode,
++ void *cmd)
++{
++ struct bcm47xx_wdt *wdt;
++
++ wdt = container_of(this, struct bcm47xx_wdt, restart_handler);
++ wdt->timer_set(wdt, 1);
++
++ return NOTIFY_DONE;
++}
++
+ static struct watchdog_ops bcm47xx_wdt_soft_ops = {
+ .owner = THIS_MODULE,
+ .start = bcm47xx_wdt_soft_start,
+@@ -209,15 +220,23 @@ static int bcm47xx_wdt_probe(struct platform_device *pdev)
+ if (ret)
+ goto err_timer;
+
+- ret = watchdog_register_device(&wdt->wdd);
++ wdt->restart_handler.notifier_call = &bcm47xx_wdt_restart;
++ wdt->restart_handler.priority = 64;
++ ret = register_restart_handler(&wdt->restart_handler);
+ if (ret)
+ goto err_notifier;
+
++ ret = watchdog_register_device(&wdt->wdd);
++ if (ret)
++ goto err_handler;
++
+ dev_info(&pdev->dev, "BCM47xx Watchdog Timer enabled (%d seconds%s%s)\n",
+ timeout, nowayout ? ", nowayout" : "",
+ soft ? ", Software Timer" : "");
+ return 0;
+
++err_handler:
++ unregister_restart_handler(&wdt->restart_handler);
+ err_notifier:
+ unregister_reboot_notifier(&wdt->notifier);
+ err_timer:
+diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h
+index b708786..5582c21 100644
+--- a/include/linux/bcm47xx_wdt.h
++++ b/include/linux/bcm47xx_wdt.h
+@@ -16,6 +16,7 @@ struct bcm47xx_wdt {
+
+ struct watchdog_device wdd;
+ struct notifier_block notifier;
++ struct notifier_block restart_handler;
+
+ struct timer_list soft_timer;
+ atomic_t soft_ticks;
+--
+1.8.4.5
+
diff --git a/target/linux/bcm53xx/patches-3.18/081-watchdog-bcm47xx_wdt.c-allow-enabling-on-BCM5301X-ar.patch b/target/linux/bcm53xx/patches-3.18/081-watchdog-bcm47xx_wdt.c-allow-enabling-on-BCM5301X-ar.patch
new file mode 100644
index 0000000000..890b7cffc8
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/081-watchdog-bcm47xx_wdt.c-allow-enabling-on-BCM5301X-ar.patch
@@ -0,0 +1,34 @@
+From b08c144e3a1089cdb725e393fa4f68f83a73e31b Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sat, 7 Feb 2015 18:04:10 +0100
+Subject: [PATCH] watchdog: bcm47xx_wdt.c: allow enabling on BCM5301X arch
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+BCM5301X (ARCH_BCM_5301X) is a new Broadcom architecture using the same
+SoC bus driver (bcma) as BCM47XX but based on ARM instead of MIPS.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+Reviewed-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
+---
+ drivers/watchdog/Kconfig | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
+index 2aaef7b..ca6c949 100644
+--- a/drivers/watchdog/Kconfig
++++ b/drivers/watchdog/Kconfig
+@@ -1113,7 +1113,7 @@ config ATH79_WDT
+
+ config BCM47XX_WDT
+ tristate "Broadcom BCM47xx Watchdog Timer"
+- depends on BCM47XX
++ depends on BCM47XX || ARCH_BCM_5301X
+ select WATCHDOG_CORE
+ help
+ Hardware driver for the Broadcom BCM47xx Watchdog Timer.
+--
+1.8.4.5
+