u-boot.git/cmd/pstore.c, branch next

pstore: Use root address-cells/size-cells as defaults for reserved-memory

2023-10-24T20:34:45+00:00

u-boot adds reserve-memory node, if it's missing, with following
properties:

```
    reserved-memory {
         #address-cells = <2>;
         #size-cells = <2>;
         ranges;
    }
```

But with these default address-cells and size-cells values, pstore
isn't working on A64. Root node for A64 defines 'address-cells' and
'size-cells' as 1.

dtc complains if reserved-memory has different address-cells and
size-cells.

```
     Warning (ranges_format): /reserved-memory:ranges: empty "ranges"
     property but its #address-cells (2) differs from / (1)
```

This patch takes into account address-cells and size-cells of the root
node and uses them as values for new reserved-memory node.

Signed-off-by: Andrey Skvortsov

pstore: Support already existing reserved-memory node

2022-02-14T18:03:49+00:00

The pstore command tries to create a reserved-memory node but fails if
it is already present with:

    Add 'reserved-memory' node failed: FDT_ERR_EXISTS

This patch creates the node only if it does not exist and adapts the reg
values sizes depending on already present #address-cells and #size-cells
values.

Signed-off-by: Detlev Casanova

global: Convert simple_strtoul() with decimal to dectoul()

2021-08-02T17:32:14+00:00

It is a pain to have to specify the value 10 in each call. Add a new
dectoul() function and update the code to use it.

Signed-off-by: Simon Glass

global: Convert simple_strtoul() with hex to hextoul()

2021-08-02T17:32:14+00:00

It is a pain to have to specify the value 16 in each call. Add a new
hextoul() function and update the code to use it.

Add a proper comment to simple_strtoul() while we are here.

Signed-off-by: Simon Glass

common: Drop asm/global_data.h from common header

2021-02-02T20:33:42+00:00

Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include  at all, so
remove that include.

Signed-off-by: Simon Glass 
Signed-off-by: Tom Rini

cmd: Fixup DT to pass PStore Ramoops parameters

2020-10-14T15:16:34+00:00

To simplify configuration and keep synchronized the PStore/Ramoops between
U-Boot and the Linux kernel, this commit dynamically adds the Ramoops
parameters defined in the U-Boot session to the Device Tree.

Signed-off-by: Frédéric Danis 
Cc: Tom Rini 
Cc: Heinrich Schuchardt 
Cc: Wolfgang Denk 
Cc: Heiko Schocher

cmd: Add command to display or save Linux PStore dumps

2020-10-14T15:16:19+00:00

This patch adds a new pstore command allowing to display or save ramoops
logs (oops, panic, console, ftrace and user) generated by a previous
kernel crash.
PStore parameters can be set in U-Boot configuration file, or at run-time
using "pstore set" command. Records size should be the same as the ones
used by kernel, and should be a power of 2.
This command allows:
- to display uncompressed logs
- to save compressed or uncompressed logs, compressed logs are saved as a
  compressed stream, it may need some work to be able to decompress it,
  e.g. adding a fake header:
  "printf "\x1f\x8b\x08\x00\x00\x00\x00\x00\x00\x00" |
  cat - dmesg-ramoops-0.enc.z | gzip -dc"
- ECC part is not used to check memory corruption
- only 1st FTrace log is displayed or saved

Signed-off-by: Frédéric Danis 
[trini: Minor updates for current design, correct spacing in rST]
Signed-off-by: Tom Rini 
Cc: Heinrich Schuchardt 
Cc: Wolfgang Denk 
Cc: Heiko Schocher