u-boot.git/include/spl.h, branch v2022.01

arm: spl: prepare for jumping to OPTEE

2021-10-25T21:17:24+00:00

Make sure to (if applicable) flush the D-cache, invalidate I-cache,
and disable MMU and caches before jumping to OPTEE.
This fixes the SDP->SPL->OPTEE boot flow on iMX6Q and most likely on
some other ARM SoCs.

Signed-off-by: Ricardo Salveti 
Co-developed-by: Oleksandr Suvorov 
Signed-off-by: Oleksandr Suvorov

spl_fit. add hook to make fixes after fit header is loaded

2021-10-07T14:53:50+00:00

add hook function spl_load_simple_fit_fix_load()
which is called after fit image header is loaded.

Signed-off-by: Heiko Schocher 
Reviewed-by: Simon Glass

SPL: Add support for specifying offset between header and image

2021-07-31T07:49:32+00:00

Some image types (e.g. kwbimage v1) store the offset to SPL binary and
offset to U-Boot proper binary in their headers. To avoid reading SPL
binary when loading U-Boot proper, add support for specifying offset in
struct spl_image_info, which defines the offset from the beginning of
the header and the beginning of the executable data.

Initial support is added only for SPI, MMC and SATA code. We can extend
it later if needed.

Signed-off-by: Pali Rohár 
Reviewed-by: Marek Behún 
Reviewed-by: Stefan Roese

spl: Introduce spl_board_prepare_for_optee() hook

2021-07-27T07:47:40+00:00

OP-TEE requires some particular setup, which is not needed for linux
or other payloads. Add a hook for platform-specific code to perform
any OP-TEE related configuration and initialization.

A weak function is used because it is symmetrical to other
spl_board_prepare_for_*() implementations. A solution to avoid the use
of weak functions would trivially apply to all these implementations.
However, re-designing this is beyond the scope of this patch.

Signed-off-by: Alexandru Gagniuc 
Reviewed-by: Tom Rini 
Reviewed-by: Simon Glass 
Reviewed-by: Patrick Delaunay

spl: Provide more information on boot failure

2021-07-21T16:27:35+00:00

If SPL fails to boot, try to provide an error code to indicate what is
wrong. For example, if a uclass is missing, this can return -EPFNOSUPPORT
(-96) which provides useful information.

Add a helper for accessing the image-loader name so we can drop the use
of #ifdefs in this code.

Put this feature behind a CONFIG_SHOW_ERRORS option to avoid increasing
the code size.

Signed-off-by: Simon Glass

sandbox: Support executables for more phases

2021-07-21T16:27:34+00:00

The SPL header has a function for obtaining the phase in capital letters,
e.g. 'SPL'. Add one for lower-case also, as used by sandbox.

Use this to generalise the sandbox logic for determining the filename of
the next sandbox executable. This can provide support for VPL.

Signed-off-by: Simon Glass

spl: mmc: Factor out eMMC boot partition selection code

2021-07-10T16:12:42+00:00

Factor out eMMC boot partition selection code into
default_spl_mmc_emmc_boot_partition() function and implement
weak spl_mmc_emmc_boot_partition(), so that architecture or
board code can override the eMMC boot partition selection.

Signed-off-by: Marek Vasut 
Cc: Faiz Abbas 
Cc: Harald Seiler 
Cc: Lokesh Vutla 
Cc: Simon Glass 
Cc: Fabio Estevam 
Cc: Peng Fan 
Cc: Stefano Babic 
Cc: Ye Li 
Reviewed-by: Jaehoon Chung

Revert "spl: Drop bd_info in the data section"

2021-04-19T15:34:01+00:00

This reverts commit 38d6b7ebdaee3e0e8426ef1b9df88bdce8ae2e75.

struct global_data contains a pointer to the bd_info structure. This
pointer was populated spl_set_bd() to a pre-allocated bd_info in the
".data" section. The referenced commit replaced this mechanism to one
that uses malloc(). That new mechanism is only used if SPL_ALLOC_BD=y.
which very few boards do.

The result is that (struct global_data)->bd is NULL in SPL on most
platforms. This breaks falcon mode, since arch_fixup_fdt() tries to
access (struct global_data)->bd and set the "/memory" node in the
devicetree. The result is that the "/memory" node contains garbage
values, causing linux to panic() as it sets up the page table.

Instead of trying to fix the mess, potentially causing other issues,
revert to the code that worked, while this change is reworked.

Signed-off-by: Alexandru Gagniuc

spl: test: Add a test for spl_load_simple_fit()

2021-03-12T14:57:31+00:00

As an example of an SPL test, add a new test for loading a FIT within
SPL. This runs on sandbox_spl. For this to work, the text base is adjusted
so that there is plenty of space available.

While we are here, document struct spl_load_info properly, since this is
currently ambiguous.

This test only verifies the logic path. It does not actually check that
the image is loaded correctly. It is not possible for sandbox's SPL to
actually run u-boot.img since it currently includes u-boot.bin rather than
u-boot. Further work could expand the test in that direction.

The need for this was noted at:

   http://patchwork.ozlabs.org/project/uboot/patch/20201216000944.2832585-3-mr.nuke.me@gmail.com/

Signed-off-by: Simon Glass

spl: fit: Drop 'length' argument to board_spl_fit_post_load()

2021-02-17T22:12:45+00:00

The size is derived from the FIT image itself. Any alignment
requirements are machine-specific and known by the board code. Thus
the total length can be derived from the FIT image and knowledge of
the platform. The 'length' argument is redundant. Remove it.

Signed-off-by: Alexandru Gagniuc 
Reviewed-by: Peng Fan 
Reviewed-by: Simon Glass 
CC: Matt Porter