arm64: mvebu: Add PCI support to DB-88F8040 board

This patch adds PCI support to the Marvell Armada-8K devel board.
Additionally the Intel E1000 ethernet driver is enabled so that
network support is available on this board, even without the
internal network interfaces being supported (yet).

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Nadav Haklai <nadavh@marvell.com>
Cc: Neta Zur Hershkovits <neta@marvell.com>
Cc: Kostya Porotchkin <kostap@marvell.com>
Cc: Omri Itach <omrii@marvell.com>
Cc: Igal Liberman <igall@marvell.com>
Cc: Haim Boot <hayim@marvell.com>
Cc: Hanna Hawa <hannah@marvell.com>

configs/mvebu_db-88f8040_defconfig

@@ -36,6 +36,9 @@ CONFIG_SPI_FLASH_MACRONIX=y
 CONFIG_SPI_FLASH_SPANSION=y
 CONFIG_SPI_FLASH_STMICRO=y
 CONFIG_PHYLIB=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_PCIE_DW_MVEBU=y
 CONFIG_MVEBU_COMPHY_SUPPORT=y
 # CONFIG_SPL_SERIAL_PRESENT is not set
 CONFIG_DEBUG_UART=y

include/configs/mvebu_armada-8k.h

@@ -128,4 +128,12 @@
 #define CONFIG_CMD_PART
 #define CONFIG_PARTITION_UUIDS
 
+/*
+ * PCI configuration
+ */
+#ifdef CONFIG_PCIE_DW_MVEBU
+#define CONFIG_E1000
+#define CONFIG_CMD_PCI
+#endif
+
 #endif /* _CONFIG_MVEBU_ARMADA_8K_H */