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| author | Fabio Estevam <fabio.estevam@freescale.com> | 2013-04-19 11:04:36 (GMT) |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-04-25 19:43:30 (GMT) |
| commit | 94b5f3edc0e1c626fcdb21cb4ebbb285dd177872 (patch) | |
| tree | f83f0a04cf1eac8835961e39cfd7bed6108c54c6 | |
| parent | eaffaa2d25ce6e94a965460467352bd12513bf09 (diff) | |
| download | u-boot-94b5f3edc0e1c626fcdb21cb4ebbb285dd177872.tar.xz | |
mx51evk: Update environment in order to allow booting a dt kernel
Update the environment as done in other imx boards to allow easy switching
between booting a non-dt kernel and a dt kernel.
Change CONFIG_LOADADDR to 0x92000000, so that we can have the:
- uImage at 0x92000000
- imx51-babbage.dtb at 0x91000000
,which are adequate locations in RAM to avoid overlapping.
Boot tested the following kernels:
- 2.6.35 from FSL (11.09 branch)
- 3.9-rc7 non-dt
- 3.9-rc7 dt
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
| -rw-r--r-- | include/configs/mx51evk.h | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h index cb3d938..4545a80 100644 --- a/include/configs/mx51evk.h +++ b/include/configs/mx51evk.h @@ -149,11 +149,15 @@ #define CONFIG_ETHPRIME "FEC0" -#define CONFIG_LOADADDR 0x90800000 /* loadaddr env var */ +#define CONFIG_LOADADDR 0x92000000 /* loadaddr env var */ #define CONFIG_EXTRA_ENV_SETTINGS \ "script=boot.scr\0" \ "uimage=uImage\0" \ + "fdt_file=imx51-babbage.dtb\0" \ + "fdt_addr=0x91000000\0" \ + "boot_fdt=try\0" \ + "ip_dyn=yes\0" \ "mmcdev=0\0" \ "mmcpart=2\0" \ "mmcroot=/dev/mmcblk0p3 rw\0" \ @@ -166,15 +170,47 @@ "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" \ + "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \ + "if run loadfdt; then " \ + "bootm ${loadaddr} - ${fdt_addr}; " \ + "else " \ + "if test ${boot_fdt} = try; then " \ + "bootm; " \ + "else " \ + "echo WARN: Cannot load the DT; " \ + "fi; " \ + "fi; " \ + "else " \ + "bootm; " \ + "fi;\0" \ "netargs=setenv bootargs console=ttymxc0,${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 || test ${boot_fdt} = try; then " \ + "if ${get_cmd} ${fdt_addr} ${fdt_file}; then " \ + "bootm ${loadaddr} - ${fdt_addr}; " \ + "else " \ + "if test ${boot_fdt} = try; then " \ + "bootm; " \ + "else " \ + "echo ERROR: Cannot load the DT; " \ + "exit; " \ + "fi; " \ + "fi; " \ + "else " \ + "bootm; " \ + "fi;\0" #define CONFIG_BOOTCOMMAND \ "mmc dev ${mmcdev}; if mmc rescan; then " \ |