Integrate AT91 bootcount driver

Integrate Boot counter for Atmel AT91SAM9XE into Kconfig

Reviewed-by: Lukasz Majewski <lukma@denx.de>
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>

README

@@ -2267,10 +2267,6 @@ The following options need to be configured:
 		A better solution is to properly configure the firewall,
 		but sometimes that is not allowed.
 
-- bootcount support:
-		CONFIG_AT91SAM9XE
-		enable special bootcounter support on at91sam9xe based boards.
-
 - Show boot progress:
 		CONFIG_SHOW_BOOT_PROGRESS
 

drivers/bootcount/Kconfig

@@ -13,6 +13,7 @@ if BOOTCOUNT_LIMIT
 choice
 	prompt "Boot count device"
 	default BOOTCOUNT_AM33XX if AM33XX || SOC_DA8XX
+	default BOOTCOUNT_AT91 if AT91SAM9XE
 
 config BOOTCOUNT_EXT
 	bool "Boot counter on EXT filesystem"
@@ -55,6 +56,10 @@ config BOOTCOUNT_I2C
 	                              the bootcounter.
 	  CONFIG_BOOTCOUNT_ALEN = address len
 
+config BOOTCOUNT_AT91
+	bool "Boot counter for Atmel AT91SAM9XE"
+	depends on AT91SAM9XE
+
 endchoice
 
 config SYS_BOOTCOUNT_SINGLEWORD

drivers/bootcount/Makefile

@@ -3,7 +3,7 @@
 #
 
 obj-y				+= bootcount.o
-obj-$(CONFIG_AT91SAM9XE)	+= bootcount_at91.o
+obj-$(CONFIG_BOOTCOUNT_AT91)	+= bootcount_at91.o
 obj-$(CONFIG_BOOTCOUNT_AM33XX)	+= bootcount_davinci.o
 obj-$(CONFIG_BOOTCOUNT_RAM)	+= bootcount_ram.o
 obj-$(CONFIG_BOOTCOUNT_ENV)	+= bootcount_env.o