arm/km: cleanup km_kirkwood boards

Remove config options from boards.cfg and simply add one switch
per board and differ afterwards in km_kirkwood.h between the features.
More boards are upcoming and therefore it's easier to have this
at one place.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
cc: Gerlando Falauto <gerlando.falauto@keymile.com>
cc: Prafulla Wadaskar <prafulla@marvell.com>

boards.cfg

@@ -140,8 +140,8 @@ pogo_e02                     arm         arm926ejs   -                   clouden
 dns325                       arm         arm926ejs   -                   d-link         kirkwood
 lschlv2                      arm         arm926ejs   lsxl                buffalo        kirkwood    lsxl:LSCHLV2
 lsxhl                        arm         arm926ejs   lsxl                buffalo        kirkwood    lsxl:LSXHL
-km_kirkwood                  arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD,KM_DISABLE_PCI
-km_kirkwood_pci              arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD_PCI,KM_FPGA_CONFIG
+km_kirkwood                  arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD
+km_kirkwood_pci              arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_KIRKWOOD_PCI
 kmnusa                       arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_NUSA
 mgcoge3un                    arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_MGCOGE3UN
 kmcoge5un                    arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_COGE5UN

include/configs/km_kirkwood.h

@@ -37,15 +37,20 @@
 #ifndef _CONFIG_KM_KIRKWOOD_H
 #define _CONFIG_KM_KIRKWOOD_H
 
+/* KM_KIRKWOOD */
 #if defined(CONFIG_KM_KIRKWOOD)
 #define CONFIG_IDENT_STRING		"\nKeymile Kirkwood"
 #define CONFIG_HOSTNAME			km_kirkwood
-#undef  CONFIG_KIRKWOOD_PCIE_INIT
+#define CONFIG_KM_DISABLE_PCIE
 #define KM_IVM_BUS			"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
+
+/* KM_KIRKWOOD_PCI */
 #elif defined(CONFIG_KM_KIRKWOOD_PCI)
 #define CONFIG_IDENT_STRING		"\nKeymile Kirkwood PCI"
 #define CONFIG_HOSTNAME			km_kirkwood_pci
 #define KM_IVM_BUS			"pca9544a:70:9"	/* I2C2 (Mux-Port 1)*/
+#define CONFIG_KM_FPGA_CONFIG
+
 /* KM_NUSA */
 #elif defined(CONFIG_KM_NUSA)
 #define KM_IVM_BUS			"pca9547:70:9"	/* I2C2 (Mux-Port 1)*/