km/uart: port UART interface of KM Kirkwood boards to driver model

Activate the driver model for the serial interface in the KM Kirkwood
Kconfig file. The associated preprocessor definitions could be removed
from the header file. However, the clock of 200 MHz needs to be declared
in the device tree.

Signed-off-by: Pascal Linder <pascal.linder@edu.hefr.ch>
Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
Signed-off-by: Stefan Roese <sr@denx.de>

diff --git a/arch/arm/dts/kirkwood-km_common.dtsi b/arch/arm/dts/kirkwood-km_common.dtsi
index 75dc839..9d0fc51 100644 (file)
--- a/arch/arm/dts/kirkwood-km_common.dtsi
+++ b/arch/arm/dts/kirkwood-km_common.dtsi
@@ -22,6 +22,7 @@
 
                serial@12000 {
                        status = "okay";
+                       clock-frequency = <200000000>;
                };
        };
 

diff --git a/board/keymile/km_arm/Kconfig b/board/keymile/km_arm/Kconfig
index 7da052f..335a454 100644 (file)
--- a/board/keymile/km_arm/Kconfig
+++ b/board/keymile/km_arm/Kconfig
@@ -42,6 +42,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
        def_bool y
        select BOARD_LATE_INIT
        select DM
+       select DM_SERIAL
        select DM_SPI
        select DM_SPI_FLASH
        imply CMD_CRAMFS

diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index 8b0b665..96227b1 100644 (file)
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -61,15 +61,6 @@
 #define CONFIG_SKIP_LOWLEVEL_INIT      /* disable board lowlevel_init */
 
 /*
- * NS16550 Configuration
- */
-#define CONFIG_SYS_NS16550_SERIAL
-#define CONFIG_SYS_NS16550_REG_SIZE    (-4)
-#define CONFIG_SYS_NS16550_CLK         CONFIG_SYS_TCLK
-#define CONFIG_SYS_NS16550_COM1                KW_UART0_BASE
-#define CONFIG_SYS_NS16550_COM2                KW_UART1_BASE
-
-/*
  * For booting Linux, the board info and command line data
  * have to be in the first 8 MB of memory, since this is
  * the maximum mapped by the Linux kernel during initialization.