[U-Boot] [PATCH v3 0/4] sunxi: support FEL-provided environment vars and "fel" boot target

[Hans de Goede <hdegoede@redhat.com>]

Hi,

On 09/17/2015 12:52 PM, Bernhard Nortmann wrote:
> This patch series builds upon
> http://lists.denx.de/pipermail/u-boot/2015-September/226515.html
> http://lists.denx.de/pipermail/u-boot/2015-September/226688.html
>
> v2 combines the previous submissions, and adds some suggested
> fixes/changes.
>
> v3 introduces another patch at the start of the series to allow
> using shared definitions from a common asm/arch-sunxi/spl.h
> include. It's also aimed at addressing some of Siarhei's comments.
>
> Siarhei: As I've shuffled things around a bit for that, I'm
> not including your ACK on patch v3 2/4. The 4/4 one (bootcmd_fel)
> is unchanged, and now includes your ACK.
>
> The sunxi-tool side of things is discussed here:
> https://www.mail-archive.com/linux-sunxi at googlegroups.com/msg13071.html
>
> * Hans de Goede already pointed out that it might be preferable to
> make use of the spl_boot_device() function even from the main
> (non-SPL) U-Boot binary (e.g. for the "NAND" case). Currently this
> function is only available with CONFIG_SPL_BUILD set, and
> implemented in arch/arm/cpu/armv7/sunxi/board.c
> Would it be safe to enable it for non-SPL builds and use something
> like "(spl_boot_device == BOOT_DEVICE_BOARD)" for misc_init_r()?
>
> * Side note: the sunxi spl_boot_device() will probably require
> some future refinement anyway, to account for the 'oddball' A80.
> That SoC requires the SPL at a different address (0x10000 instead
> of 0x0).
> I've tried to address this (at least in part) by introducing a
> SPL_ADDR definition in the platform-specific spl.h.


>
> Regards, B. Nortmann
>
> Changes in v3:
> - (new with v3)
> - adapted to use asm/arch/spl.h
> - make use of asm/arch/spl.h to share definitions / helper macro
> - revert SPL version check to expect exact SPL_HEADER_VERSION
>
> Changes in v2:
> - Rename field to fel_script_address, discard fel_data_size
> - Clearing header fields is no longer needed, as mksunxiboot.c zeroes entire image first
> - renamed fel_data_addr to fel_script_addr, discarded fel_data_size
> - make sure that FEL-related environment vars are always cleared first
> - support minimum and maximum SPL (header) version, more verbose error messages
> - renamed fel_data_addr to fel_scriptaddr
> - combined both tests into one as suggested by Hans de Goede
>
> Bernhard Nortmann (4):
>    sunxi: move SPL-related definitions to platform-specific include
>    sunxi: (mksunxiboot) signature to indicate "sunxi" SPL variant
>    sunxi: retrieve FEL-provided values to environment variables
>    sunxi: add "fel" boot target
>
>   arch/arm/cpu/armv7/sunxi/board.c      |  2 +-
>   arch/arm/include/asm/arch-sunxi/spl.h | 47 +++++++++++++++++++++++++++++------
>   arch/arm/include/asm/spl.h            |  5 ++++
>   board/sunxi/board.c                   | 35 ++++++++++++++++++++++++++
>   include/configs/sunxi-common.h        | 11 ++++++++
>   tools/mksunxiboot.c                   | 21 ++++------------
>   6 files changed, 96 insertions(+), 25 deletions(-)

Thanks, I've added these to my personal tree and will include
it in a future pull-req.

Regards,

Hans