[U-Boot] [PATCH v2 00/12] System Firmware Loader for TI K3 family SoCs

[Lokesh Vutla]

On 05/06/19 4:25 AM, Andreas Dannenberg wrote:
> Updated version of the SYSFW loader series for K3 family AM654x devices.
> The fundamantal approach of tapping into the SPL loader framework has
> been kept for reasons discussed already. The series also still uses
> "early BSS" in SPL's board_init_f(). I'm well aware of the concerns
> previously brought up regarding this mainly by Simon Glass but I have
> not been able to find a better / more universal solution for this yet
> (one proposal was to move SYSFW loading into board_init_r() which is not
> easily solvable as SYSFW is needed to bring up DDR on K3 SoCs). Long
> story short I propose to consider the current proposed approach
> nevertheless (as it is also used by other platforms) at least as an
> initial step, and then migrate once a better solution is available.

tested this series on AM654 evm using SD boot. FWIW:
Tested-by: Lokesh Vutla <lokeshvutla at ti.com>



> 
> I have not yet included support for TI's newest K3 family J721E SoC
> which Lokesh posted an initial patch series [5] for due to the
> complex dependencies of all the different series we have currently
> posted/pending (if I were to add support for J721E which eventually will
> be required then the SYSFW loader series would have Lokesh's series as a
> pre-requisite as well).
> 
> This being said I would like to propose the following staging sequence
> for the different TI K3 SoCs patches currently under review:
> 
> Step 1) Faiz' "Add Support for eMMC in Am65x-evm" series [1]. It needs
>         a small update to actuall allow for eMMC boot I posted earlier.
> Step 2) The SYSFW loader series proposed here
> Step 3) An updated version (v3) of the AM654x EEPROM support [3].
>         Will post this today. 

I would like to see the above 3 series be merged first. Will take care of the
rest of the J721e support and other.

> Step 4) An updated version of Lokesh's "arm: k3: Allow for exclusive
>         and shared device requests" series. In addition to a rebase
>         such an updated series should include updating power domain
>         properties for devices that were added during the previous
>         steps.
> Step 5) An updated version of Lokesh's "arm: k3: arm64: Initial support
>         Texas Instrument's J721E Platform" series [5] also adding
>         in the few lines of codes to leverage SYSFW.
> Step 6 & beyond) Various rproc patches, etc.

I have a slightly different order that you mentioned. Will repost everything
once the first 3 steps are sorted out.

Thanks and regards,
Lokesh

> 
> 
> The above is to allow for things to build in a logical order while
> avoiding merge conflicts. 1+2+3 added will provide a pretty good initial
> working U-Boot using eMMC and SD media for AM654x which is a device
> available today plus a foundation for everything else, hence it is at
> the top of the list.
> 
> 
> Changes since initial submission:
> - Dropped patch "armv7R: dts: k3: am654: Update mmc nodes for loading
>   sysfw". This is taken care off by the "Add Support for eMMC in
>   Am65x-evm" patch series [1] which this series was rebased on.
> - Replaced patch "spl: Allow skipping clearing BSS during relocation"
>   with a functionally equivalent patch "spl: Allow performing BSS init
>   early before board_init_f()" which is a bit more elegant solution
>   which itself is a slight evolution what previously posted by Simon
>   Goldschmidt [2]
> - Collected various review tags
> 
> 
> [1] https://patchwork.ozlabs.org/project/uboot/list/?series=111723
> [2] https://patchwork.ozlabs.org/patch/1067363/
> [3] https://patchwork.ozlabs.org/project/uboot/list/?series=109266
> [4] https://patchwork.ozlabs.org/project/uboot/list/?series=109163
> [5] https://patchwork.ozlabs.org/project/uboot/list/?series=109296
> 
> 
> --
> Andreas Dannenberg
> Texas Instruments Inc
> 
> 
> Andreas Dannenberg (10):
>   mmc: am654_sdhci: Allow driver to probe without PDs specified
>   spl: Allow performing BSS init early before board_init_f()
>   spl: Make image loader infrastructure more universal
>   arm: K3: Introduce System Firmware loader framework
>   armV7R: K3: am654: Allow using SPL BSS pre-relocation
>   armv7R: K3: am654: Use full malloc implementation in SPL
>   armV7R: K3: am654: Load SYSFW binary and config from boot media
>   configs: am65x_evm_r5: All sysfw to be loaded via MMC
>   configs: am65x_hs_evm_r5: All sysfw to be loaded via MMC
>   configs: am65x_hs_evm: Add Support for eMMC boot
> 
> Faiz Abbas (2):
>   configs: am65x_evm: Add Support for eMMC boot
>   am65x: README: Add eMMC layout and flash instructions
> 
>  arch/arm/lib/crt0.S                          |  53 ++--
>  arch/arm/mach-k3/Kconfig                     |  39 +++
>  arch/arm/mach-k3/Makefile                    |   3 +
>  arch/arm/mach-k3/am6_init.c                  |  27 +-
>  arch/arm/mach-k3/include/mach/sysfw-loader.h |  12 +
>  arch/arm/mach-k3/sysfw-loader.c              | 260 +++++++++++++++++++
>  board/ti/am65x/Kconfig                       |   1 +
>  board/ti/am65x/README                        |  52 ++++
>  common/spl/Kconfig                           |  10 +
>  common/spl/spl_fit.c                         |  14 +
>  common/spl/spl_mmc.c                         |  76 ++++--
>  configs/am65x_evm_a53_defconfig              |   2 +
>  configs/am65x_evm_r5_defconfig               |   7 +-
>  configs/am65x_hs_evm_a53_defconfig           |   2 +
>  configs/am65x_hs_evm_r5_defconfig            |   7 +-
>  drivers/mmc/am654_sdhci.c                    |  16 +-
>  include/configs/am65x_evm.h                  |  30 ++-
>  include/spl.h                                |  26 ++
>  18 files changed, 580 insertions(+), 57 deletions(-)
>  create mode 100644 arch/arm/mach-k3/include/mach/sysfw-loader.h
>  create mode 100644 arch/arm/mach-k3/sysfw-loader.c
>