arm: renesas: Enable preboot environment variable on all R-Car systems

Enable the 'preboot' variable on all R-Car systems. This variable can
optionally be set and contain a script which is executed before the
autoboot timeout starts. This can be used to run critical scripts or
similar tasks. By default, the "preboot" variable is empty.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>

diff --git a/configs/renesas_rcar.config b/configs/renesas_rcar.config
index 1835eb1357f9a83a19bae1e3374283002ffc779e..a93cb2e9f137ac8c62e114b39962908b6f04fd02 100644 (file)
--- a/configs/renesas_rcar.config
+++ b/configs/renesas_rcar.config
@@ -30,5 +30,6 @@ CONFIG_RCAR_GPIO=y
 CONFIG_SCIF_CONSOLE=y
 CONFIG_SERIAL_RX_BUFFER=y
 CONFIG_SPI=y
+CONFIG_USE_PREBOOT=y
 CONFIG_VERSION_VARIABLE=y
 CONFIG_WGET=y