arm/km: add support for kmsuv31 board

This board is from a u-boot point of view a mixture between kmnusa and
a standard km_kirkwood board. We have our u-boot environment in the spi
NOR flash, but we have a direct connection between the kirkwood and the
piggy. A FPGA is connected via the PCIe interface. So we only have to
select the specific features in the board setup.

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

boards.cfg

@@ -163,6 +163,7 @@ lsxhl                        arm         arm926ejs   lsxl                buffalo
 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
+kmsuv31                      arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_SUV31
 mgcoge3un                    arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_MGCOGE3UN
 kmcoge5un                    arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_COGE5UN
 portl2                       arm         arm926ejs   km_arm              keymile        kirkwood    km_kirkwood:KM_PORTL2

include/configs/km_kirkwood.h

@@ -98,6 +98,14 @@
 #define KM_IVM_BUS			"pca9544a:70:9" /* I2C2 (Mux-Port 1)*/
 #define CONFIG_KM_PIGGY4_88E6061
 
+/* KM_SUV31 */
+#elif defined(CONFIG_KM_SUV31)
+#define KM_IVM_BUS			"pca9547:70:9"	/* I2C2 (Mux-Port 1)*/
+#define CONFIG_IDENT_STRING		"\nKeymile SUV31"
+#define CONFIG_HOSTNAME			kmsuv31
+#define CONFIG_KM_ENV_IS_IN_SPI_NOR
+#define CONFIG_KM_FPGA_CONFIG
+
 #else
 #error ("Board unsupported")
 #endif