u-boot.git/common/cmd_i2c.c, branch master

Move all command code into its own directory

2016-01-25T15:39:43+00:00

There are a lot of unrelated files in common, including all of the commands.
Moving them into their own directory makes them easier to find and is more
logical.

Some commands include non-command code, such as cmd_scsi.c. This should be
sorted out at some point so that the function can be enabled with or without
the associated command.

Unfortunately, with m68k I get this error:

m68k:  +   M5329AFEE
+arch/m68k/cpu/mcf532x/start.o: In function `_start':
+arch/m68k/cpu/mcf532x/start.S:159:(.text+0x452): relocation truncated to fit: R_68K_PC16 against symbol `board_init_f' defined in .text.board_init_f section in common/built-in.o

I hope someone can shed some light on what this means. I hope it isn't
depending on the position of code in the image.

Signed-off-by: Simon Glass 
Reviewed-by: Bin Meng 
Reviewed-by: Heiko Schocher 
Acked-by: Stefan Roese 
Acked-by: Przemyslaw Marczak

i2c: Correct command return values

2016-01-21T02:06:22+00:00

We should not return a -ve error code from command functions. Instead,
return CMD_RET_FAILURE. This avoids the "exit not allowed from main input
shell" error messages from the hush shell.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher

i2c: cmd: Relocate subcommands when MANUAL_RELOC

2015-12-07T09:14:30+00:00

Subcommands contain pointers to functions which are not updated when
MANUAL_RELOC is enabled. This patch fix it.

Signed-off-by: Michal Simek 
Acked-by: Heiko Schocher 
Reviewed-by: Simon Glass

Move console definitions into a new console.h file

2015-11-20T03:27:50+00:00

The console includes a global variable and several functions that are only
used by a small subset of U-Boot files. Before adding more functions, move
the definitions into their own header file.

Signed-off-by: Simon Glass

dm: i2c: Add a command to adjust the offset length

2015-08-31T13:57:28+00:00

I2C chips can support a register offset, with registers accessible by
sending this offset as the first part of any read or write transaction.
Most I2C chips have a single byte offset, thus the offset length is 1.
This provides access for up 256 registers.

However other offset lengths are supported, including 0.

Add a command to provide access to the offset length from the command
line. This allows the offset length to be read or written.

Signed-off-by: Simon Glass 
Acked-by: Christophe Ricard
Reviewed-by: Heiko Schocher

dm: i2c: Implement 'i2c bus' command for driver model

2015-05-15T00:49:33+00:00

This command was missed in the conversion. Add it back for driver model.

Signed-off-by: Simon Glass 
Reviewed-by: Joe Hershberger 
Acked-by: Heiko Schocher

cmd_i2c: Provide option for bulk 'i2c write' in one transaction

2015-02-19T08:03:40+00:00

I2C chips do exist that require a write of some multi-byte data to occur in
a single bus transaction (aka atomic transfer), otherwise either the write
does not come into effect at all, or normal operation of internal circuitry
cannot be guaranteed. The current implementation of the 'i2c write' command
(transfer of multiple bytes from a memory buffer) in fact performs a separate
transaction for each byte to be written and thus cannot support such types of
I2C slave devices.

This patch provides an alternative by allowing 'i2c write' to execute the
write transfer of the given number of bytes in a single bus transaction if
the '-s' option is specified as a final command argument. Else the current
re-addressing method is used.

Signed-off-by: Lubomir Popov 

hs: adapt to CONFIG_DM_I2C

cmd_i2c: quit I2C commands immediately on error

2015-02-19T07:44:21+00:00

If the i2c driver returns an error status, error out immediately.
Continuing the loop just results in printing error messages
again and again.

Signed-off-by: Masahiro Yamada 
Cc: Simon Glass 
Cc: Heiko Schocher 
Reviewed-by: Simon Glass

dm: i2c: Add a dm_ prefix to driver model bus speed functions

2015-02-12T17:35:33+00:00

As with i2c_read() and i2c_write(), add a dm_ prefix to the driver model
versions of these functions to avoid conflicts.

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher

dm: i2c: Provide an offset length parameter where needed

2015-01-30T00:09:53+00:00

Rather than assuming that the chip offset length is 1, allow it to be
provided. This allows chips that don't use the default offset length to
be used (at present they are only supported by the command line 'i2c'
command which sets the offset length explicitly).

Signed-off-by: Simon Glass 
Acked-by: Heiko Schocher