[U-Boot] [PATCH v6 3/6] mx28evk: Add support to dynamically choose between fdt use or not

Otavio Salvador
2013-01-10T19:45:06Z

Changes in v6: None
Changes in v5:
- Change subject
- Reword the warning

Changes in v4:
- Use a warning, instead of error when failing to fetch fdt
- Drop exit use
- Fix netboot
- Use fdt instead of ftd

Changes in v3:
- Add loadfdt
- Use loadfdt
- Call exit to abort script

Changes in v2:
- Allow use of dynamic/static ip
- Allow force use, or not, of fdt
- Change 'auto' to 'try'

include/configs/mx28evk.h | 41 ++++++++++++++++++++++++++++++++++++++---
1 file changed, 38 insertions(+), 3 deletions(-)

diff --git a/include/configs/mx28evk.h b/include/configs/mx28evk.h
index a13478d..dd0ef21 100644
--- 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 " \
--
1.7.10.4