mx28evk: Add support to dynamically choose between fdt use or not

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>

diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
index a13478d9321434c888886c971f4d8a4026f4724d..dd0ef2134b529441335f70422afc5476ad9d7e75 100644 (file)
--- a/include/configs/mx28evk.h
+++ b/include/configs/mx28evk.h
@@ -290,6 +290,10 @@
        "uimage=uImage\0" \
        "console_fsl=ttyAM0\0" \
        "console_mainline=ttyAMA0\0" \
+       "fdt_file=imx28-evk.dtb\0" \
+       "fdt_addr=0x41000000\0" \
+       "boot_fdt=try\0" \
+       "ip_dyn=yes\0" \
        "mmcdev=0\0" \
        "mmcpart=2\0" \
        "mmcroot=/dev/mmcblk0p3 rw rootwait\0" \
@@ -300,15 +304,46 @@
        "bootscript=echo Running bootscript from mmc ...; "     \
                "source\0" \
        "loaduimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${uimage}\0" \
+       "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
        "mmcboot=echo Booting from mmc ...; " \
-               "run mmcargs; " \
-               "bootm\0" \
+               "run mmcargs; " \
+               "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
+                       "if run loadfdt; then " \
+                               "bootm ${loadaddr} - ${fdt_addr}; " \
+                       "else " \
+                               "if test ${boot_fdt} = try; then " \
+                                       "bootm; " \
+                               "else " \
+                                       "echo WARN: Cannot load the DT; " \
+                               "fi; " \
+                       "fi; " \
+               "else " \
+                       "bootm; " \
+               "fi;\0" \
        "netargs=setenv bootargs console=${console_mainline},${baudrate} " \
                "root=/dev/nfs " \
                "ip=dhcp nfsroot=${serverip}:${nfsroot},v3,tcp\0" \
        "netboot=echo Booting from net ...; " \
                "run netargs; " \
-               "dhcp ${uimage}; bootm\0"
+               "if test ${ip_dyn} = yes; then " \
+                       "setenv get_cmd dhcp; " \
+               "else " \
+                       "setenv get_cmd tftp; " \
+               "fi; " \
+               "${get_cmd} ${uimage}; " \
+               "if test ${boot_fdt} = yes; then " \
+                       "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \
+                               "bootm ${loadaddr} - ${fdt_addr}; " \
+                       "else " \
+                               "if test ${boot_fdt} = try; then " \
+                                       "bootm; " \
+                               "else " \
+                                       "echo WARN: Cannot load the DT; " \
+                               "fi;" \
+                       "fi; " \
+               "else " \
+                       "bootm; " \
+               "fi;\0"
 
 #define CONFIG_BOOTCOMMAND \
        "mmc dev ${mmcdev}; if mmc rescan; then " \