Convert CONFIG_BOOTCOUNT_ENV to Kconfig

[people/ms/u-boot.git] / drivers / bootcount / Kconfig

diff --git a/drivers/bootcount/Kconfig b/drivers/bootcount/Kconfig
index e905295d4537f9a8e7f47088bd911b92698cfe8f..40a07555af0b5f2a70cddda114cf1cd24cf99fa1 100644 (file)
--- a/drivers/bootcount/Kconfig
+++ b/drivers/bootcount/Kconfig
@@ -28,6 +28,18 @@ config BOOTCOUNT_AM33XX
          This requires the RTC clocks, etc, to be enabled prior to use and
          not all boards with this IP block on it will have the RTC in use.
 
+config BOOTCOUNT_ENV
+       bool "Boot counter in environment"
+       help
+         If no softreset save registers are found on the hardware
+         "bootcount" is stored in the environment. To prevent a
+         saveenv on all reboots, the environment variable
+         "upgrade_available" is used. If "upgrade_available" is
+         0, "bootcount" is always 0, if "upgrade_available" is
+         1 "bootcount" is incremented in the environment.
+         So the Userspace Application must set the "upgrade_available"
+         and "bootcount" variable to 0, if a boot was successfully.
+
 endchoice
 
 config SYS_BOOTCOUNT_SINGLEWORD