arm: mvebu: clearfog: generic distro bootcmd

Switch Clearfog to the generic distro defaults.  This has been taken
from a Debian mailing list thread:

https://lists.debian.org/debian-boot/2016/10/msg00026.html

Signed-off-by: Patrick Wildt <patrick@blueri.se>
Signed-off-by: Stefan Roese <sr@denx.de>

configs/clearfog_defconfig

@@ -8,14 +8,13 @@ CONFIG_SPL_MMC_SUPPORT=y
 CONFIG_SPL_SERIAL_SUPPORT=y
 CONFIG_SPL_LIBDISK_SUPPORT=y
 CONFIG_DEFAULT_DEVICE_TREE="armada-388-clearfog"
+CONFIG_DISTRO_DEFAULTS=y
 CONFIG_BOOTDELAY=3
 CONFIG_SYS_CONSOLE_INFO_QUIET=y
 # CONFIG_DISPLAY_BOARDINFO is not set
 CONFIG_SPL=y
 CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR=0x141
 CONFIG_SPL_I2C_SUPPORT=y
-CONFIG_HUSH_PARSER=y
-CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y
@@ -25,15 +24,8 @@ CONFIG_CMD_I2C=y
 CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_TFTPPUT=y
-CONFIG_CMD_DHCP=y
-CONFIG_CMD_MII=y
-CONFIG_CMD_PING=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
-CONFIG_CMD_EXT2=y
-CONFIG_CMD_EXT4=y
-CONFIG_CMD_FAT=y
-CONFIG_CMD_FS_GENERIC=y
 CONFIG_EFI_PARTITION=y
 # CONFIG_PARTITION_UUIDS is not set
 # CONFIG_SPL_PARTITION_UUIDS is not set

include/configs/clearfog.h

@@ -79,7 +79,7 @@
 #define CONFIG_SYS_ALT_MEMTEST
 
 /* Keep device tree and initrd in lower memory so the kernel can access them */
-#define CONFIG_EXTRA_ENV_SETTINGS	\
+#define RELOCATION_LIMITS_ENV_SETTINGS	\
 	"fdt_high=0x10000000\0"		\
 	"initrd_high=0x10000000\0"
 
@@ -133,4 +133,50 @@
  */
 #include "mv-common.h"
 
+/* Include the common distro boot environment */
+#ifndef CONFIG_SPL_BUILD
+#include <config_distro_defaults.h>
+
+#ifdef CONFIG_MMC
+#define BOOT_TARGET_DEVICES_MMC(func) func(MMC, mmc, 0)
+#else
+#define BOOT_TARGET_DEVICES_MMC(func)
+#endif
+
+#ifdef CONFIG_USB_STORAGE
+#define BOOT_TARGET_DEVICES_USB(func) func(USB, usb, 0)
+#else
+#define BOOT_TARGET_DEVICES_USB(func)
+#endif
+
+#define BOOT_TARGET_DEVICES(func) \
+	BOOT_TARGET_DEVICES_MMC(func) \
+	BOOT_TARGET_DEVICES_USB(func) \
+	func(PXE, pxe, na) \
+	func(DHCP, dhcp, na)
+
+#define KERNEL_ADDR_R	__stringify(0x800000)
+#define FDT_ADDR_R	__stringify(0x100000)
+#define RAMDISK_ADDR_R	__stringify(0x1800000)
+#define SCRIPT_ADDR_R	__stringify(0x200000)
+#define PXEFILE_ADDR_R	__stringify(0x300000)
+
+#define LOAD_ADDRESS_ENV_SETTINGS \
+	"kernel_addr_r=" KERNEL_ADDR_R "\0" \
+	"fdt_addr_r=" FDT_ADDR_R "\0" \
+	"ramdisk_addr_r=" RAMDISK_ADDR_R "\0" \
+	"scriptaddr=" SCRIPT_ADDR_R "\0" \
+	"pxefile_addr_r=" PXEFILE_ADDR_R "\0"
+
+#include <config_distro_bootcmd.h>
+
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	RELOCATION_LIMITS_ENV_SETTINGS \
+	LOAD_ADDRESS_ENV_SETTINGS \
+	"fdtfile=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
+	"console=ttyS0,115200\0" \
+	BOOTENV
+
+#endif /* CONFIG_SPL_BUILD */
+
 #endif /* _CONFIG_CLEARFOG_H */