arm: mvebu: enable sata support for clearfog

The a38x sata interfaces run in ahci mode and can
be accessed via the scsi command.

Signed-off-by: Jon Nettleton <jon@solid-run.com>
[baruch: rebase on current upstream]
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>

configs/clearfog_defconfig

@@ -35,6 +35,7 @@ CONFIG_CMD_TIME=y
 CONFIG_ENV_IS_IN_MMC=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SPL_OF_TRANSLATE=y
+CONFIG_SCSI_AHCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_SDMA=y
 CONFIG_MMC_SDHCI_MV=y
@@ -46,6 +47,7 @@ CONFIG_PHY_MARVELL=y
 CONFIG_PHY_GIGE=y
 CONFIG_MVNETA=y
 CONFIG_PCI=y
+CONFIG_SCSI=y
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYS_NS16550=y
 CONFIG_KIRKWOOD_SPI=y

include/configs/clearfog.h

@@ -62,6 +62,15 @@
 #define CONFIG_PCI_SCAN_SHOW
 #endif
 
+/* SATA support */
+#ifdef CONFIG_SCSI
+#define CONFIG_SCSI_AHCI_PLAT
+#define CONFIG_SYS_SCSI_MAX_SCSI_ID	1
+#define CONFIG_SYS_SCSI_MAX_LUN		1
+#define CONFIG_SYS_SCSI_MAX_DEVICE	(CONFIG_SYS_SCSI_MAX_SCSI_ID * \
+					CONFIG_SYS_SCSI_MAX_LUN)
+#endif
+
 /* Keep device tree and initrd in lower memory so the kernel can access them */
 #define RELOCATION_LIMITS_ENV_SETTINGS	\
 	"fdt_high=0x10000000\0"		\