arm: mvebu: clearfog: support multiple SATA boot

Enable distro bootcmd support for additional SATA ports if enabled.

Signed-off-by: Joel Johnson <mrjoel@lixil.net>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/include/configs/clearfog.h b/include/configs/clearfog.h
index eef6983..52945d1 100644 (file)
--- a/include/configs/clearfog.h
+++ b/include/configs/clearfog.h
@@ -116,17 +116,47 @@
 #define BOOT_TARGET_DEVICES_USB(func)
 #endif
 
-#ifdef CONFIG_SCSI
-#define BOOT_TARGET_DEVICES_SCSI(func) func(SCSI, scsi, 0)
+#ifndef CONFIG_SCSI
+#define BOOT_TARGET_DEVICES_SCSI_BUS0(func)
+#define BOOT_TARGET_DEVICES_SCSI_BUS1(func)
+#define BOOT_TARGET_DEVICES_SCSI_BUS2(func)
 #else
-#define BOOT_TARGET_DEVICES_SCSI(func)
+/*
+ * With SCSI enabled, M.2 SATA is always located on bus 0
+ */
+#define BOOT_TARGET_DEVICES_SCSI_BUS0(func) func(SCSI, scsi, 0)
+
+/*
+ * Either one or both mPCIe slots may be configured as mSATA interfaces. The
+ * SCSI bus ids are assigned based on sequence of hardware present, not always
+ * tied to hardware slot ids. As such, use second SCSI bus if either slot is
+ * set for SATA, and only use third SCSI bus if both slots are SATA enabled.
+ */
+#if defined (CONFIG_CLEARFOG_CON2_SATA) || defined (CONFIG_CLEARFOG_CON3_SATA)
+#define BOOT_TARGET_DEVICES_SCSI_BUS1(func) func(SCSI, scsi, 1)
+#else
+#define BOOT_TARGET_DEVICES_SCSI_BUS1(func)
+#endif
+
+#if defined (CONFIG_CLEARFOG_CON2_SATA) && defined (CONFIG_CLEARFOG_CON3_SATA)
+#define BOOT_TARGET_DEVICES_SCSI_BUS2(func) func(SCSI, scsi, 2)
+#else
+#define BOOT_TARGET_DEVICES_SCSI_BUS2(func)
 #endif
 
+#endif /* CONFIG_SCSI */
+
+/*
+ * The SCSI buses are attempted in increasing bus order, there is no current
+ * mechanism to alter the default bus priority order for booting.
+ */
 #define BOOT_TARGET_DEVICES(func) \
        BOOT_TARGET_DEVICES_MMC(func) \
        BOOT_TARGET_DEVICES_SCSI(func) \
        BOOT_TARGET_DEVICES_USB(func) \
-       BOOT_TARGET_DEVICES_SCSI(func) \
+       BOOT_TARGET_DEVICES_SCSI_BUS0(func) \
+       BOOT_TARGET_DEVICES_SCSI_BUS1(func) \
+       BOOT_TARGET_DEVICES_SCSI_BUS2(func) \
        func(PXE, pxe, na) \
        func(DHCP, dhcp, na)