u-boot.git/drivers/core/root.c, branch v2024.01

lib: acpi: Fix linking SPL when ACPIGEN is enabled

2023-10-18T00:50:52+00:00

lib/acpi/acpigen.o is only compiled into SPL when SPL_ACPIGEN is enabled.
Update several files which reference these functions accordingly.

Signed-off-by: Sean Anderson 
Reviewed-by: Simon Glass

common: Drop linux/printk.h from common header

2023-09-24T13:54:57+00:00

This old patch was marked as deferred. Bring it back to life, to continue
towards the removal of common.h

Move this out of the common header and include it only where needed.

Signed-off-by: Simon Glass

dm: Remove unused NEEDS_MANUAL_RELOC code bits

2023-09-14T14:42:24+00:00

The last user of the NEEDS_MANUAL_RELOC has been removed in commit
26af162ac8f8 ("arch: m68k: Implement relocation")
Remove now unused NEEDS_MANUAL_RELOC code.

Signed-off-by: Marek Vasut

dm: event: add EVT_DM_POST_INIT_R event type

2023-08-22T14:07:43+00:00

This patch introduces EVT_DM_POST_INIT_R event type for handling hooks
after relocation.

Fixes: 55171aedda88 ("dm: Emit the arch_cpu_init_dm() even only before relocation")
Suggested-by: Simon Glass 
Cc: Bin Meng 
Signed-off-by: Chanho Park 
Tested-by: Milan P. Stanić 
Reviewed-by: Simon Glass 
Tested-by: Roland Ruckerbauer 
Tested-by: Roland Ruckerbauer 
Fixed missing event name in event.c:
Signed-off-by: Simon Glass

dm: Emit the arch_cpu_init_dm() even only before relocation

2023-05-11T02:25:29+00:00

The original function was only called once, before relocation. The new
one is called again after relocation. This was not the intent of the
original call. Fix this by renaming and updating the calling logic.

With this, chromebook_link64 makes it through SPL.

Fixes: 7fe32b3442f0 ("event: Convert arch_cpu_init_dm() to use events")
Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng

dm: fix probing of all devices that have u-boot, dm-pre-reloc in SPL/TPL

2023-01-12T19:06:16+00:00

Currently, dm_probe_devices checks that the flags of the device contains
DM_FLAG_PRE_RELOC. However DM_FLAG_PRE_RELOC is a driver - and not a
device - flag. This means that the check in pre_reloc_only mode would
always fail.

Instead, what was aimed to be checked is that either the driver of the
device has the flag set, or that the device has the u-boot,dm-pre-reloc
Device Tree property set.

So let's fix the check to allow u-boot,dm-pre-reloc devices to be
probed.

Cc: Quentin Schulz 
Signed-off-by: Quentin Schulz

dm: core: Add a way to collect memory usage

2022-06-28T02:09:52+00:00

Add a function for collecting the amount of memory used by driver model,
including devices, uclasses and attached data and tags.

This information can provide insights into how to reduce the memory
required by driver model. Future work may look at execution speed also.

Signed-off-by: Simon Glass

dm: core: Add DM_FLAG_PROBE_AFTER_BIND flag

2022-04-28T13:26:43+00:00

Introduce DM_FLAG_PROBE_AFTER_BIND flag, which can be set by driver or
uclass in .bind(), to indicate such driver instance should be probe()d
once binding of all devices is complete.

This is useful in case the driver determines that hardware initialization
is mandatory on boot, and such initialization happens only in probe().
This also solves the inability to call device_probe() from .bind().

Signed-off-by: Marek Vasut 
Cc: Patrice Chotard 
Cc: Patrick Delaunay 
Cc: Sean Anderson 
Cc: Simon Glass 
Cc: Steven Lawrance 
Reviewed-by: Patrice Chotard 
Tested-by: Patrice Chotard

dm: core: Deal with a wrinkle with linker lists

2022-04-18T21:53:56+00:00

When every member of a linker list is aligned by the compiler, we can no
longer rely on the sizeof of the struct to determine the number of
entries.

For example, if the struct size is 0x90 but every entry is aligned to 0xa0
by the compiler, the linker list entries takes more space in memory and
the calculation of the number of entries is incorrect. For example, we may
see 0x12 entries when there are only 0x11.

This is a real problem. There may be a general solution, although I cannot
currently think of one. So far it only bites with OF_PLATDATA_RT which
creates a pointer to each entry of the 'struct udevice' linker_list. This
does not happen without that option, so it only affects SPL.

Work around it by manually calculating the aligned size of struct udevice,
then using that for the n_ent calculation.

Note: the alignment fix to linker list was here:

   0b2fa98aa5e linker_lists: Fix alignment issue

Signed-off-by: Simon Glass

dm: add tag support

2022-04-09T19:06:31+00:00

With dm-tag feature, any U-Boot subsystem is allowed to associate
arbitrary number of data with a particular udevice. This can been
see as expanding "struct udevice" without modifying the definition.

As a first user, UEFI subsystem makes use of tags to associate
an efi_disk object with a block device.

Signed-off-by: AKASHI Takahiro 
Reviewed-by: Simon Glass