Merge branch 'rmobile' of git://git.denx.de/u-boot-sh

[oweals/u-boot.git] / drivers / serial / Kconfig

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 1686a1f951e860757bbc656678fbfdf6088b39b9..5611fac0dc46793bfc23f08573eddb89a7ce2a91 100644 (file)
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -66,8 +66,19 @@ config DEBUG_UART_CLOCK
          A default should be provided by your board, but if not you will need
          to use the correct value here.
 
+config DEBUG_UART_SHIFT
+       int "UART register shift"
+       depends on DEBUG_UART
+       default 0 if DEBUG_UART
+       help
+         Some UARTs (notably ns16550) support different register layouts
+         where the registers are spaced either as bytes, words or some other
+         value. Use this value to specify the shift to use, where 0=byte
+         registers, 2=32-bit word registers, etc.
+
 config UNIPHIER_SERIAL
-       bool "UniPhier on-chip UART support"
+       bool "Support for UniPhier on-chip UART"
        depends on ARCH_UNIPHIER && DM_SERIAL
        help
-         Support for the on-chip UARTs on the Panasonic UniPhier platform.
+         If you have a UniPhier based board and want to use the on-chip
+         serial ports, say Y to this option. If unsure, say N.