u-boot.git/cmd/mem.c, branch v2020.10

cmd: mem: fix range of bitflip test

2020-09-18T20:19:58+00:00

The bitflip test uses two equal sized memory buffers. This is achieved
by splitting the range of memory into two pieces. The address of the
second buffer, as well as the length of each buffer, were not correctly
calculated. This caused bitflip test to access beyond the end of range.
This patch fixes the pointer arithmetic problem.

A second problem arises because u-boot "mtest" command expects the
ending address to be inclusive. When computing (end - start) this
results in missing 1 byte of the requested length. The bitflip test
expects a count rather than an "ending" address. Thus it fails to test
the last word of the requested range. Fixed by using (end - start + 1).

Added Kconfig option to optionally disable the bitflip test, since it
does add significantly to the time taken for "mtest".

Fixes: 8e434cb705d463bc8cff935160e4fb4c77cb99ab ("cmd: mem: Add bitflip
memory test to alternate mtest")

Signed-off-by: Ralph Siemsen 
Reviewed-by: Stefan Roese

cmd: mem: Remove already removed CONFIG_SYS_MEMTEST_SCRATCH

2020-08-27T15:26:58+00:00

The commit e519f03a1846 ("cmd: mem: Remove CONFIG_SYS_MEMTEST_SCRATCH
mapping") removed CONFIG_SYS_MEMTEST_SCRATCH but commit 091401131085
("command: Remove the cmd_tbl_t typedef") has added it back. That's why
symbol is still in the tree that's why remove it again.

Fixes: 091401131085 ("command: Remove the cmd_tbl_t typedef
Signed-off-by: Michal Simek 
Reviewed-by: Simon Glass

cmd: Update the memory-search command

2020-08-08T02:31:32+00:00

Add various fixes and improvements to this command that were missed in
the original version. Unfortunately I forgot to send v2.

- Fix Kconfig name
- Use a separate variable for the remaining search length
- Correct a minor bug
- Move into a separate test suite
- Add -q flag to the 'quiet' test to test operation when console is enabled
- Enable the feature for sandbox

Signed-off-by: Simon Glass

cmd: Add a memory-search command

2020-07-08T21:21:46+00:00

It is useful to be able to find hex values and strings in a memory range.
Add a command to support this.

cmd: Fix 'md' and add a memory-search command
At present 'md.q' is broken. This series provides a fix for this. It also
implements a new memory-search command called 'ms'. It allows searching
memory for hex and string data.
END

Signed-off-by: Simon Glass

cmd: mem: Drop #ifdef for MEM_SUPPORT_64BIT_DATA

2020-07-08T21:21:46+00:00

This is defined only when __lp64__ is defined. That means that ulong is
64 bits long. Therefore we don't need to use a separate u64 type on those
architectures.

Fix up the code to take advantage of that, removing the preprocessor
conditions.

Signed-off-by: Simon Glass 
Reviewed-by: Stefan Roese

cmd: mem: Use a macro to avoid #ifdef in help

2020-07-08T21:21:46+00:00

It is a bit painful to have #ifdefs in the middle of the help for each
command. Add a macro to avoid this.

Signed-off-by: Simon Glass 
Reviewed-by: Stefan Roese

Update MEM_SUPPORT_64BIT_DATA to be always defined

2020-07-08T21:21:46+00:00

Define this macro always so we don't need the preprocessor to check it.
Convert the users to #if instead of #ifdef.

Note that '#if MEM_SUPPORT_64BIT_DATA' does not give an error if the
macro is not define. It just assumes zero.

Signed-off-by: Simon Glass 
Reviewed-by: Stefan Roese

common: Drop linux/bitops.h from common header

2020-05-19T01:19:23+00:00

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass

common: Drop linux/delay.h from common header

2020-05-19T01:19:23+00:00

Move this uncommon header out of the common header.

Signed-off-by: Simon Glass

Fix some checkpatch warnings in calls to udelay()

2020-05-19T01:19:23+00:00

Fix up some incorrect code style in calls to functions in the linux/time.h
header, mostly udelay().

Signed-off-by: Simon Glass