diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 93329620f447b4757fcdbfeebc5811b060b23a19..01e33e80eac0a2bf86e1541fcca855f6a48ee9d1 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -695,9 +695,16 @@ config 8xx_WDT
 	tristate "MPC8xx Watchdog Timer"
 	depends on 8xx
 
-config 83xx_WDT
-	tristate "MPC83xx/MPC86xx Watchdog Timer"
+config 8xxx_WDT
+	tristate "MPC8xxx Platform Watchdog Timer"
 	depends on PPC_83xx || PPC_86xx
+	help
+	  This driver is for a SoC level watchdog that exists on some
+	  Freescale PowerPC processors. So far this driver supports:
+	  - MPC83xx watchdogs
+	  - MPC86xx watchdogs
+
+	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
 
 config MV64X60_WDT
 	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index edd305a64e6334583d62376dfc39b399f29f584c..cdd674ffaa21d555561a3310af8d36286ada002b 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -103,7 +103,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
 # POWERPC Architecture
 obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
 obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o
-obj-$(CONFIG_83xx_WDT) += mpc83xx_wdt.o
+obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o
 obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
 obj-$(CONFIG_BOOKE_WDT) += booke_wdt.o
 
diff --git a/drivers/watchdog/mpc83xx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
similarity index 100%
rename from drivers/watchdog/mpc83xx_wdt.c
rename to drivers/watchdog/mpc8xxx_wdt.c