[U-Boot] [PATCH v3 5/7] armv8: layerscape: Enable falcon boot

[York Sun]

On 09/29/2017 01:02 AM, Łukasz Majewski wrote:
> Hi York,
> 
>> Add jump_to_image_linux() for arm64. Add "noreturn" flag to
>> armv8_switch_to_el2(). Add hooks to fsl-layerscape to enable falcon
>> boot.
>>
>> Signed-off-by: York Sun <york.sun at nxp.com>
>> Reviewed-by: Simon Glass <sjg at chromium.org>
>>
>> ---
>>
>> Changes in v3:
>> Fix typo in subject and other cosmetic fix.
>>
>> Changes in v2:
>> Relace getenv_f() with env_get_f() after rebasing to latet master.
>>
>>   .../arm/cpu/armv8/fsl-layerscape/doc/README.falcon | 140 +++++++++++++++++++++
>>   arch/arm/cpu/armv8/fsl-layerscape/spl.c            |  29 +++++
>>   arch/arm/include/asm/system.h                      |   4 +-
>>   arch/arm/lib/spl.c                                 |  11 ++
>>   4 files changed, 182 insertions(+), 2 deletions(-)
>>   create mode 100644 arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
>>
>> diff --git a/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
>> new file mode 100644
>> index 0000000..282b19f
>> --- /dev/null
>> +++ b/arch/arm/cpu/armv8/fsl-layerscape/doc/README.falcon
>> @@ -0,0 +1,140 @@
>> +Falcon boot option
>> +------------------
>> +Falcon boot is a short cut boot method for SD/eMMC targets. It skips loading the
>> +RAM version U-Boot. Instead, it loads FIT image and boot directly to Linux.
>> +CONFIG_SPL_OS_BOOT enables falcon boot. CONFIG_SPL_LOAD_FIT enables the FIT
>> +image support (also need CONFIG_SPL_OF_LIBFDT, CONFIG_SPL_FIT and optionally
>> +CONFIG_SPL_GZIP).
>> +
>> +To enable falcon boot, a hook function spl_start_uboot() returns 0 to indicate
>> +booting U-Boot is not the first choice. The kernel FIT image needs to be put
>> +at CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR. SPL mmc driver reads the header to
>> +determine if this is a FIT image. If true, FIT image components are parsed and
>> +copied or decompressed (if applicable) to their desitinations. If FIT image is
> 					           ^^^^^ - destinations

Thanks for catching them. I will fix them with another spin, or when
applying it. I need to setup the spelling check.

York