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authorMichael Buesch <mb@bu3sch.de>2008-02-19 12:41:30 +0100
committerJohn W. Linville <linville@tuxdriver.com>2008-02-20 20:11:49 -0500
commit42bfad4f71637c4eb4791aa8062063c4a8526522 (patch)
tree42c8c52d953aaa8f0418084af1e60c15e900488c /drivers/ssb
parent58ff70d4feae29cbb7ace410fa6585ef3afb44b6 (diff)
downloadlinux-42bfad4f71637c4eb4791aa8062063c4a8526522.tar.bz2
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 <mb@bu3sch.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/ssb')
-rw-r--r--drivers/ssb/Kconfig6
-rw-r--r--drivers/ssb/Makefile1
-rw-r--r--drivers/ssb/driver_extif.c6
-rw-r--r--drivers/ssb/embedded.c26
4 files changed, 39 insertions, 0 deletions
diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index d976660cb7f0..78fd33125e02 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 7be397595805..e235144add7c 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 fe55eb8b038a..b1899f422a54 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 000000000000..751f58ac612c
--- /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 <mb@bu3sch.de>
+ *
+ * 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;
+}