u-boot.git/drivers/ddr/altera, branch v2016.01

ddr: altera: Repair uninited variable

2015-08-23T09:56:19+00:00

Fix the following problem:
drivers/ddr/altera/sequencer.c: In function 'sdram_calibration_full':
drivers/ddr/altera/sequencer.c:1943:25: warning: 'found_failing_read' may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (found_passing_read && found_failing_read)
                         ^
drivers/ddr/altera/sequencer.c:1803:26: note: 'found_failing_read' was declared here
  u32 found_passing_read, found_failing_read, initial_failing_dtap;
                          ^

Signed-off-by: Marek Vasut

ddr: altera: Replace float multiplication with integer one

2015-08-23T09:56:19+00:00

This gem is really really rare, there was an actual float used in
the Altera DDR init code, which pulled in floating point ops from
the libgcc, just wow.

Since we don't support floating point operations the same way Linux
does not support them, replace this with an integer multiplication
and division combo. This removes some 2kiB of size from the SPL as
the floating point ops are no longer pulled in from libgcc.

This was detected by enabling CONFIG_USE_PRIVATE_LIBGCC=y , which
does not contain the floating point bits.

Signed-off-by: Marek Vasut

ddr: altera: sequencer: Clean checkpatch issues

2015-08-08T12:14:30+00:00

Fix most of the dangling checkpatch issues, no functional change.
There are still 7 warnings, 1 checks , but those are left in place
for the sake of readability of the code.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Clean data types

2015-08-08T12:14:29+00:00

Replace uintNN_t with uNN. No functional change.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Pluck out misc macros from code

2015-08-08T12:14:29+00:00

Actually convert the sequencer code to use socfpga_sdram_misc_config
instead of the various macros. This is just an sed exercise here, no
manual coding needed.

This patch actually removes the need to include any board-specific
files in sequencer.c , so sequencer.c namespace is now no longer
poluted by QTS-generated macros.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Zap SEQ_T(INIT|RESET)_CNTR._VAL

2015-08-08T12:14:29+00:00

This is another macro used to obfuscate the real code. The
T(INIT|RESET)_CNTR._VAL is always defined, so this indirection
is unnecessary. Get rid of this.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Zap VFIFO_SIZE

2015-08-08T12:14:29+00:00

Just use READ_VALID_FIFO_SIZE directly, no need for this macro obfuscation.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Wrap misc remaining macros

2015-08-08T12:14:29+00:00

Introduce structure socfpga_sdram_misc_config to wrap the remaining
misc configuration values in board file. Again, introduce a function,
socfpga_get_sdram_misc_config(), which returns this the structure. This
is almost the final step toward wrapping the nasty QTS generated macros
in board files and reducing the pollution of the namespace.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Pluck out IO_* macros from code

2015-08-08T12:14:29+00:00

Actually convert the sequencer code to use socfpga_sdram_io_config
instead of the IO_* macros. This is just an sed excercise here, no
manual coding needed.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen

ddr: altera: sequencer: Wrap IO_* macros

2015-08-08T12:14:29+00:00

Introduce structure socfpga_sdram_io_config to wrap the IO configuration
values in board file. Introduce socfpga_get_sdram_io_config() function,
which returns this the structure. This is another step toward wrapping
the nasty QTS generated macros in board files and reducing the pollution
of the namespace.

Signed-off-by: Marek Vasut 
Acked-by: Dinh Nguyen