Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=42bfad4f71637c4eb4791aa8062063c4a8526522
Commit:     42bfad4f71637c4eb4791aa8062063c4a8526522
Parent:     58ff70d4feae29cbb7ace410fa6585ef3afb44b6
Author:     Michael Buesch <[EMAIL PROTECTED]>
AuthorDate: Tue Feb 19 12:41:30 2008 +0100
Committer:  John W. Linville <[EMAIL PROTECTED]>
CommitDate: Wed Feb 20 20:11:49 2008 -0500

    ssb: Fix watchdog access for devices without a chipcommon
    
    This fixes the SSB watchdog access for devices without a chipcommon.
    These devices have the watchdog on the extif.
    
    Signed-off-by: Michael Buesch <[EMAIL PROTECTED]>
    Signed-off-by: John W. Linville <[EMAIL PROTECTED]>
---
 drivers/ssb/Kconfig                       |    6 ++++++
 drivers/ssb/Makefile                      |    1 +
 drivers/ssb/driver_extif.c                |    6 ++++++
 drivers/ssb/embedded.c                    |   26 ++++++++++++++++++++++++++
 include/linux/ssb/ssb_driver_chipcommon.h |    5 +++++
 include/linux/ssb/ssb_driver_extif.h      |    9 +++++++++
 include/linux/ssb/ssb_embedded.h          |   10 ++++++++++
 7 files changed, 63 insertions(+), 0 deletions(-)

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index d976660..78fd331 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -105,6 +105,12 @@ config SSB_DRIVER_MIPS
 
          If unsure, say N
 
+# Assumption: We are on embedded, if we compile the MIPS core.
+config SSB_EMBEDDED
+       bool
+       depends on SSB_DRIVER_MIPS
+       default y
+
 config SSB_DRIVER_EXTIF
        bool "SSB Broadcom EXTIF core driver (EXPERIMENTAL)"
        depends on SSB_DRIVER_MIPS && EXPERIMENTAL
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 7be3975..e235144 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -1,5 +1,6 @@
 # core
 ssb-y                                  += main.o scan.o
+ssb-$(CONFIG_SSB_EMBEDDED)             += embedded.o
 
 # host support
 ssb-$(CONFIG_SSB_PCIHOST)              += pci.o pcihost_wrapper.o
diff --git a/drivers/ssb/driver_extif.c b/drivers/ssb/driver_extif.c
index fe55eb8..b1899f4 100644
--- a/drivers/ssb/driver_extif.c
+++ b/drivers/ssb/driver_extif.c
@@ -110,6 +110,12 @@ void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
        *m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
 }
 
+void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
+                                 u32 ticks)
+{
+       extif_write32(extif, SSB_EXTIF_WATCHDOG, ticks);
+}
+
 u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask)
 {
        return extif_read32(extif, SSB_EXTIF_GPIO_IN) & mask;
diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c
new file mode 100644
index 0000000..751f58a
--- /dev/null
+++ b/drivers/ssb/embedded.c
@@ -0,0 +1,26 @@
+/*
+ * Sonics Silicon Backplane
+ * Embedded systems support code
+ *
+ * Copyright 2005-2008, Broadcom Corporation
+ * Copyright 2006-2008, Michael Buesch <[EMAIL PROTECTED]>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_embedded.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;
+}
diff --git a/include/linux/ssb/ssb_driver_chipcommon.h 
b/include/linux/ssb/ssb_driver_chipcommon.h
index 35717b4..8963815 100644
--- a/include/linux/ssb/ssb_driver_chipcommon.h
+++ b/include/linux/ssb/ssb_driver_chipcommon.h
@@ -360,6 +360,11 @@ struct ssb_chipcommon {
        u16 fast_pwrup_delay;
 };
 
+static inline bool ssb_chipco_available(struct ssb_chipcommon *cc)
+{
+       return (cc->dev != NULL);
+}
+
 extern void ssb_chipcommon_init(struct ssb_chipcommon *cc);
 
 #include <linux/pm.h>
diff --git a/include/linux/ssb/ssb_driver_extif.h 
b/include/linux/ssb/ssb_driver_extif.h
index a916435..0d7c9bf 100644
--- a/include/linux/ssb/ssb_driver_extif.h
+++ b/include/linux/ssb/ssb_driver_extif.h
@@ -171,6 +171,9 @@ extern void ssb_extif_get_clockcontrol(struct ssb_extif 
*extif,
 extern void ssb_extif_timing_init(struct ssb_extif *extif,
                                  unsigned long ns);
 
+extern void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
+                                        u32 ticks);
+
 u32 ssb_extif_gpio_in(struct ssb_extif *extif, u32 mask);
 
 void ssb_extif_gpio_out(struct ssb_extif *extif, u32 mask, u32 value);
@@ -200,5 +203,11 @@ void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
 {
 }
 
+static inline
+void ssb_extif_watchdog_timer_set(struct ssb_extif *extif,
+                                 u32 ticks)
+{
+}
+
 #endif /* CONFIG_SSB_DRIVER_EXTIF */
 #endif /* LINUX_SSB_EXTIFCORE_H_ */
diff --git a/include/linux/ssb/ssb_embedded.h b/include/linux/ssb/ssb_embedded.h
new file mode 100644
index 0000000..80bd584
--- /dev/null
+++ b/include/linux/ssb/ssb_embedded.h
@@ -0,0 +1,10 @@
+#ifndef LINUX_SSB_EMBEDDED_H_
+#define LINUX_SSB_EMBEDDED_H_
+
+#include <linux/types.h>
+#include <linux/ssb/ssb.h>
+
+
+extern int ssb_watchdog_timer_set(struct ssb_bus *bus, u32 ticks);
+
+#endif /* LINUX_SSB_EMBEDDED_H_ */
-
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