u-boot.git/drivers/core, branch v2021.07-rc2

dm: core: Add size operations on device tree references

2021-04-29T10:23:39+00:00

Add functions to add size of addresses in the device tree using ofnode
references.

If the size is not set, return FDT_SIZE_T_NONE.

Signed-off-by: Chen Guanqiao 
Reviewed-by: Simon Glass

dm: core: Fix uninitialized return value from dm_scan_fdt_node

2021-04-29T10:23:39+00:00

If there are no nodes or if all nodes are disabled, this function would
return err without setting it first. Fix this by initializing err to
zero.

Fixes: 94f7afdf7e ("dm: core: Ignore disabled devices when binding")

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

test: dm: Add a test case for simple-bus

2021-04-15T08:52:17+00:00

This adds a test case to verify reading  of a simple-bus is
working as expected.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass 
Reviewed-by: Priyanka Jain

dm: core: Correctly read of simple-bus

2021-04-15T08:52:17+00:00

At present we decode simple bus  using the following assumption:

- parent #address-cells 1
- child #address-cells 1
- child #size-cells 1

However this might not always be the case.

Update to use fdt_addr_t and fdt_size_t in 'struct simple_bus_plat', and
use fdt_read_ranges() to correctly decode it according to the actual
parent and child #address-cells / #size-cells under a Kconfig option
CONFIG_SIMPLE_BUS_CORRECT_RANGE which can be turned on for any board
that needs it.

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass 
Reviewed-by: Priyanka Jain

of: extra: Introduce ofnode_phy_is_fixed_link() API

2021-04-15T08:52:17+00:00

Introduce a helper API ofnode_phy_is_fixed_link() to detect whether
the ethernet controller connects to a fixed-link pseudo-PHY device.

Note there are two ways to describe a fixed PHY attached to an
Ethernet device:

- the new DT binding, where 'fixed-link' is a sub-node of the
  Ethernet device
- the old DT binding, where 'fixed-link' is a property with 5
  cells encoding various information about the fixed PHY

Signed-off-by: Bin Meng 
Reviewed-by: Simon Glass 
Reviewed-by: Vladimir Oltean 
Reviewed-by: Priyanka Jain

simple-pm-bus: Use -ENOSYS for checking missing system call

2021-04-06T04:33:19+00:00

We don't need to check -ENOTSUPP since this is not used for this purpose
in U-Boot. Update the code accordingly.

Signed-off-by: Simon Glass 

Reviewed-by: Sean Anderson

dm: core: Use -ENOSPC in acpi_get_path()

2021-04-06T04:33:19+00:00

Update this function to use -ENOSPC which is more commly used when a buffer
runs out of space.

Signed-off-by: Simon Glass

dm: core: Use separate priv/plat data region

2021-03-26T04:03:09+00:00

Make use of the new priv/plat data region if enabled. This is implemented
as a simple offset from the position set up by dtoc to the new position.

So long as all access goes through dm_priv_to_rw() this is safe.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass

dm: core: Allow storing priv/plat data separately

2021-03-26T04:03:09+00:00

At present the device priv/data data allocated by dtoc is stored in the
data section along with other variables. On some platforms it is better
to allocate space for it separately, e.g. if SPL is running from read-only
memory.

Create a new space with the same size as that allocated by dtoc, ready for
use.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass

dm: core: Move flags to device-runtime info

2021-03-26T04:03:09+00:00

When of-platdata-inst is active, use the flags in the new udevice_rt
table, dropping them from the main struct udevice. This ensures that the
latter is not updated at runtime.

Signed-off-by: Simon Glass 
Signed-off-by: Simon Glass