[RESEND PATCH v3 0/4] arm: kirkwood: Add support for Pogoplug V4

Pogoplug V4 specifications: Kirkwood 88F6192 SoC 800 MHz CPU 1Gbs Ethernet 128 MB RAM 128 MB NAND 1x USB 2.0 2x USB 3.0 (on PCIe bus) 1 SDHC slot 1x External SATA port (USM enclosure form factor slot) Changes in v3: - Migrate symbols from board include header to Kconfig - Squash board file sma

[PATCH v3 0/4] arm: kirkwood: Add support for Pogoplug V4

Pogoplug V4 specifications: Kirkwood 88F6192 SoC 800 MHz CPU 1Gbs Ethernet 128 MB RAM 128 MB NAND 1x USB 2.0 2x USB 3.0 (on PCIe bus) 1 SDHC slot 1x External SATA port (USM enclosure form factor slot) Changes in v3: - Migrate config symbols from board include header to defconfig - Remove obsol