abslibre/libre-testing/uboot4extlinux-wandboard/0001-parabola-arm-modifications.patch

diff -Nur u-boot-2015.10.orig/include/configs/mx6_common.h u-boot-2015.10/include/configs/mx6_common.h
--- u-boot-2015.10.orig/include/configs/mx6_common.h	2015-10-19 20:59:38.000000000 -0300
+++ u-boot-2015.10/include/configs/mx6_common.h	2016-02-26 20:52:16.196805960 -0300
@@ -68,7 +68,7 @@
 #define CONFIG_SYS_LOAD_ADDR	CONFIG_LOADADDR
 
 #ifndef CONFIG_BOOTDELAY
-#define CONFIG_BOOTDELAY	3
+#define CONFIG_BOOTDELAY	1
 #endif
 
 /* allow to overwrite serial and ethaddr */
@@ -82,6 +82,8 @@
 #define CONFIG_SUPPORT_RAW_INITRD
 #define CONFIG_CMD_FS_GENERIC
 #define CONFIG_DOS_PARTITION
+#define CONFIG_CMD_PART
+#define CONFIG_PARTITION_UUIDS
 #define CONFIG_CMD_EXT2
 #define CONFIG_CMD_EXT4
 #define CONFIG_CMD_EXT4_WRITE
diff -Nur u-boot-2015.10.orig/include/configs/wandboard.h u-boot-2015.10/include/configs/wandboard.h
--- u-boot-2015.10.orig/include/configs/wandboard.h	2015-10-19 20:59:38.000000000 -0300
+++ u-boot-2015.10/include/configs/wandboard.h	2016-02-26 20:55:20.041265918 -0300
@@ -86,19 +86,33 @@
 #define CONFIG_IMX_HDMI
 #define CONFIG_IMX_VIDEO_SKIP
 
+#define CONFIG_IDENT_STRING " Parabola GNU/Linux-libre"
+
+/* Enable Extlinux boot support */
+#define CONFIG_CMD_PXE
+#define CONFIG_MENU
+#define BOOT_TARGET_DEVICES(func)
+#include <config_distro_bootcmd.h>
+
 #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 #define CONFIG_EXTRA_ENV_SETTINGS \
+	BOOTENV \
 	"script=boot.scr\0" \
 	"image=zImage\0" \
+	"bootdir=/boot\0" \
 	"console=ttymxc0\0" \
 	"splashpos=m,m\0" \
 	"fdtfile=undefined\0" \
+	"fdtdir=/boot/dtbs\0" \
 	"fdt_high=0xffffffff\0" \
 	"initrd_high=0xffffffff\0" \
 	"fdt_addr=0x18000000\0" \
+	"rdaddr=0x12A00000\0" \
+	"rdfile=initramfs-linux.img\0" \
 	"boot_fdt=try\0" \
+	"optargs=\0" \
 	"ip_dyn=yes\0" \
-	"mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \
+	"mmcdev=0\0" \
 	"mmcpart=1\0" \
 	"mmcroot=/dev/mmcblk0p2 rootwait rw\0" \
 	"update_sd_firmware_filename=u-boot.imx\0" \
@@ -116,7 +130,9 @@
 			"fi; "	\
 		"fi\0" \
 	"mmcargs=setenv bootargs console=${console},${baudrate} " \
-		"root=${mmcroot}; run videoargs\0" \
+		"${optargs} " \
+		"root=${root} " \
+		"video=${video}\0" \
 	"videoargs=" \
 		"setenv nextcon 0; " \
 		"if hdmidet; then " \
@@ -143,27 +159,44 @@
 			"echo '- no FWBADAPT-7WVGA-LCD-F07A-0102 display';" \
 		"fi; " \
 		"setenv bootargs ${bootargs} ${fbmem}\0" \
-	"loadbootscript=" \
-		"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
-	"bootscript=echo Running bootscript from mmc ...; " \
-		"source\0" \
-	"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
-	"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdtfile}\0" \
-	"mmcboot=echo Booting from mmc ...; " \
-		"run mmcargs; " \
-		"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
-			"if run loadfdt; then " \
-				"bootz ${loadaddr} - ${fdt_addr}; " \
-			"else " \
-				"if test ${boot_fdt} = try; then " \
-					"bootz; " \
+	"loadimage=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${image}\0" \
+	"loadrd=load ${devtype} ${bootpart} ${rdaddr} ${bootdir}/${rdfile}\0" \
+	"loadfdt=echo loading ${fdtdir}/${fdtfile} ...; load ${devtype} ${bootpart} ${fdt_addr} ${fdtdir}/${fdtfile}\0" \
+	"mmcboot=usb start;" \
+		"for devtype in mmc usb; do " \
+			"setenv devnum 0;" \
+			"while ${devtype} dev ${devnum}; do " \
+				"echo ${devtype} found on device ${devnum};" \
+				"setenv bootpart ${devnum}:1;" \
+				"part uuid ${devtype} ${bootpart} uuid;" \
+				"setenv root PARTUUID=${uuid} rw rootwait;" \
+				"echo Checking for: ${bootdir}/uEnv.txt ...;" \
+				"if test -e ${devtype} ${bootpart} ${bootdir}/uEnv.txt; then " \
+					"load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/uEnv.txt;" \
+					"env import -t ${loadaddr} ${filesize};" \
+					"echo Loaded environment from ${bootdir}/uEnv.txt;" \
+					"echo Checking if uenvcmd is set ...;" \
+					"if test -n ${uenvcmd}; then " \
+						"echo Running uenvcmd ...;" \
+						"run uenvcmd;" \
+					"fi;" \
+				"fi;" \
+				"run scan_dev_for_boot;" \
+				"if run loadimage; then " \
+					"run mmcargs;" \
+					"if run loadfdt; then " \
+						"if run loadrd; then " \
+							"bootz ${loadaddr} ${rdaddr}:${filesize} ${fdt_addr};" \
+						"else " \
+							"bootz ${loadaddr} - ${fdt_addr};" \
+						"fi;" \
+					"fi;" \
 				"else " \
-					"echo WARN: Cannot load the DT; " \
-				"fi; " \
-			"fi; " \
-		"else " \
-			"bootz; " \
-		"fi;\0" \
+					"echo No kernel found;" \
+				"fi;" \
+				"setexpr devnum ${devnum} + 1;" \
+			"done;" \
+		"done;\0" \
 	"netargs=setenv bootargs console=${console},${baudrate} " \
 		"root=/dev/nfs " \
 	"ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
@@ -202,16 +235,7 @@
 
 #define CONFIG_BOOTCOMMAND \
 	   "run findfdt; " \
-	   "mmc dev ${mmcdev}; if mmc rescan; then " \
-		   "if run loadbootscript; then " \
-			   "run bootscript; " \
-		   "else " \
-			   "if run loadimage; then " \
-				   "run mmcboot; " \
-			   "else run netboot; " \
-			   "fi; " \
-		   "fi; " \
-	   "else run netboot; fi"
+	   "run mmcboot;"
 
 /* Physical Memory Map */
 #define CONFIG_NR_DRAM_BANKS		1