u-boot.git/drivers/core/ofnode.c, branch v2020.01

fdt: Fix alignment issue when reading 64-bits properties from fdt

2019-10-27T19:01:53+00:00

The FDT specification [0] gives a requirement of aligning properties on
32-bits. Make sure that the compiler is aware of this constraint when
accessing 64-bits properties.

[0]: https://github.com/devicetree-org/devicetree-specification/blob/master/source/flattened-format.rst

Signed-off-by: Jean-Jacques Hiblot 
Reviewed-by: Simon Glass

dm: core: Correct bad cast in ofnode_get_addr_size_index()

2019-10-03T13:10:53+00:00

At present this code passes an fdt_addr_t pointer as a u64 pointer which
is not safe, since sizeof(fdt_addr_t) may be 4, e.g. with sandbox. Correct
this to avoid a stack corruption problem.

Fixes: e679d03b08 (core: ofnode: Add ofnode_get_addr_size_index)
Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
[bmeng: correct one typo in the commit message]
Signed-off-by: Bin Meng

dm: core: Correct low cell in ofnode_read_pci_addr()

2019-10-03T13:10:11+00:00

This reads the low cell of the PCI address from the wrong cell. Fix it.
Also fix the function that this code came from.

Fixes: 9e51204527 (dm: core: Add operations on device tree references)
Fixes: 4ea5243a3a (fdt: fix fdtdec_get_pci_addr() for CONFIG_PHYS_64BIT)
Signed-off-by: Simon Glass 
Tested-by: Stephen Warren 
Reviewed-by: Bin Meng

dm: core: Add functions to read 64-bit dt properties

2019-09-06T02:39:15+00:00

This patch adds functions dev_read_u64_default & dev_read_u64
to read unsigned 64-bit values from devicetree.

Signed-off-by: T Karthik Reddy 
Signed-off-by: Michal Simek 
Reviewed-by: Bin Meng

core: ofnode: do not assert if node not valid in ofnode_get_name()

2019-08-19T04:43:26+00:00

In some case with LIVE DT, some node always not valid, or not have
a valid name, eg. blk driver add by mmc.
Return fail instead of Assert for this kind of ofnode, and this
help with assert happen from time to time when of_live is enabled
and DEBUG is enabled.

Signed-off-by: Kever Yang 
Reviewed-by: Simon Glass

dm: core: Set correct "status" value for a node

2019-07-24T19:54:08+00:00

Per device tree spec, "status" property can have a value of "okay",
or "disabled", but not "disable".

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

dm: core: Introduce xxx_translate_dma_address()

2019-07-22T07:21:28+00:00

Add the following functions to translate DMA address to CPU address:
- dev_translate_dma_address()
- ofnode_translate_dma_address()
- of_translate_dma_address()
- fdt_translate_dma_address()
These functions work the same way as xxx_translate_address(), with the
difference that the translation relies on the "dma-ranges" property
instead of the "ranges" property.

Add related test. Test report:
=> ut dm fdt_translation
Test: dm_test_fdt_translation: test-fdt.c
Test: dm_test_fdt_translation: test-fdt.c (flat tree)
Failures: 0

Signed-off-by: Fabien Dessenne

core: ofnode: Have ofnode_read_u32_default return a u32

2019-05-21T23:33:23+00:00

It was returning an int, which doesn't work if the u32 it is reading,
or the default value, will overflow a signed int.

While it could be made to work, when using a C standard/compiler where
casting negative signed values to unsigned has a defined behavior,
combined with careful casting, it seems obvious one is meant to use
ofnode_read_s32_default() with signed values.

Cc: Simon Glass 
Signed-off-by: Trent Piepho

core: ofnode: Add ofnode_get_addr_size_index

2019-05-21T23:33:23+00:00

Add ofnode_get_addr_size_index function to fetch the address
and size of the reg space based on index.

Signed-off-by: Keerthy 
Reviewed-by: Simon Glass

dm: core: Fix translate condition in ofnode_get_addr_size()

2019-05-08T04:44:07+00:00

Update the condition to translate only if this is enabled for SPL.

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