[PATCH 1/2] configs: Convert AT91RESET_EXTRST to Kconfig

[Tudor Ambarus]

Convert AT91RESET_EXTRST to Kconfig for easier integration. The symbol is
not configurable from menuconfig, it will be automatically selected by SoCs
that select it explicitly via the "select" directive.
AT91RESET_EXTRST sets the Reset Controller's RSTC_CR.EXTRST bit which
asserts the nrst_out pin that resets external devices.

Signed-off-by: Tudor Ambarus <tudor.ambarus at microchip.com>
---
 arch/arm/mach-at91/Kconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index 00f31045d6..ecc4da3797 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -299,6 +299,9 @@ endchoice
 config ATMEL_SFR
 	bool
 
+config AT91RESET_EXTRST
+	bool
+
 config SYS_SOC
 	default "at91"
 
-- 
2.25.1