[U-Boot] [PATCH V2 2/2] odroid: Add boot script (boot.scr) support

[Przemyslaw Marczak <p.marczak@samsung.com>]

Hello,

On 10/09/2015 01:59 PM, Guillaume Gardet wrote:
>
>
> Le 09/10/2015 12:24, Przemyslaw Marczak a ?crit :
>> Hello Guillaume,
>>
>> On 10/05/2015 11:07 AM, Guillaume GARDET wrote:
>>> Add boot script (boot.scr) support. If no boot script are
>>> found, it boots as usual.
>>>
>>> Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr>
>>> Cc: Przemyslaw Marczak <p.marczak@samsung.com>
>>> Cc: Minkyu Kang <mk7.kang@samsung.com>
>>>
>>> ---
>>>   include/configs/odroid.h | 9 +++++++++
>>>   1 file changed, 9 insertions(+)
>>>
>>> diff --git a/include/configs/odroid.h b/include/configs/odroid.h
>>> index e45b00e..f79847b 100644
>>> --- a/include/configs/odroid.h
>>> +++ b/include/configs/odroid.h
>>> @@ -108,6 +108,8 @@
>>>    * 2.  ROOT:  -
>>>   */
>>>   #define CONFIG_EXTRA_ENV_SETTINGS \
>>> +    "loadbootscript=load mmc ${mmcbootdev}:${mmcbootpart}
>>> ${scriptaddr} " \
>>> +        "boot.scr\0" \
>>>       "loadkernel=load mmc ${mmcbootdev}:${mmcbootpart} ${kerneladdr}
>>> " \
>>>           "${kernelname}\0" \
>>>       "loadinitrd=load mmc ${mmcbootdev}:${mmcbootpart} ${initrdaddr}
>>> " \
>>> @@ -129,6 +131,9 @@
>>>       "kernel_args=" \
>>>           "setenv bootargs
>>> root=/dev/mmcblk${mmcrootdev}p${mmcrootpart}" \
>>>           " rootwait ${console} ${opts}\0" \
>>> +    "boot_script=" \
>>> +        "run loadbootscript;" \
>>> +        "source ${scriptaddr}\0" \
>>>       "boot_fit=" \
>>>           "setenv kerneladdr 0x42000000;" \
>>>           "setenv kernelname Image.itb;" \
>>> @@ -152,6 +157,9 @@
>>>           "run kernel_args;" \
>>>           "bootz ${kerneladdr} ${initrd_addr} ${fdt_addr};\0" \
>>>       "autoboot=" \
>>> +        "if test -e mmc 0 boot.scr; then; " \
>>> +            "run boot_script; " \
>>> +        "fi; " \
>>
>> Why you not use "elif"?  Last time I gave you the correct version:
>>
>> "if test -e mmc 0 boot.scr; then; " \
>>     "run bootscript; " \
>> "elif test -e mmc 0 Image.itb; then; " \
>
> Because, if boot script fails, then it allows to try to boot kernel
> directly.
> If you prefer the 'elif' version, I am fine with it.

I think, that only one boot path should be chosen at each boot.
Even if boot script will fail, it means, that the boot path was found, 
and loading uImage directly is not preferred - since maybe something can 
be missing then.

If user wants boot from script, then he puts it to disk, if not then he 
can choose one of supported image type, but not all at a time.

>
> If 'elif' version is preferred, would you be ok to modify it directly
> (faster) or would you like a V3?
>
>
> Guillaume
>

I suggested that version to you in last review. I would like to apply 
locally the patch and test, if can compile with no error/warning, make 
test of run the board and test of booting the kernel. And after positive 
test sequence, your patch will be acked, and then can be taken by Minkyu.

So yes, please send the correct version.

>
>
>>
>>>           "if test -e mmc 0 Image.itb; then; " \
>>>               "run boot_fit;" \
>>>           "elif test -e mmc 0 zImage; then; " \
>>> @@ -171,6 +179,7 @@
>>>       "consoleoff=set console console=ram; save; reset\0" \
>>>       "initrdname=uInitrd\0" \
>>>       "initrdaddr=42000000\0" \
>>> +    "scriptaddr=0x42000000\0" \
>>>       "fdtaddr=40800000\0"
>>>
>>>   /* I2C */
>>>
>>
>> Best regards
>
>

Best regards
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com