Merge branch 'master' of git://git.denx.de/u-boot-socfpga

ddr: altera: Configuring SDRAM extra cycles timing parameters

To enable configuration of sdr.ctrlcfg.extratime1 register which enable
extra clocks for read to write command timing. This is critical

ddr: altera: Configuring SDRAM extra cycles timing parameters

To enable configuration of sdr.ctrlcfg.extratime1 register which enable
extra clocks for read to write command timing. This is critical to
ensure successful LPDDR2 interface

Signed-off-by: Chin Liang See <clsee@altera.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>

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Merge branch 'master' of git://git.denx.de/u-boot-socfpga

ddr: altera: Fix DRAM end value in protection rule

The hi address bitfield in the protection rule must be set to
the last address in the region which the rule represents. The
behavior is now in-line

ddr: altera: Fix DRAM end value in protection rule

The hi address bitfield in the protection rule must be set to
the last address in the region which the rule represents. The
behavior is now in-line with code generated by Quartus 15.1 .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Chin Liang See <clsee@altera.com>

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Merge branch 'master' of git://git.denx.de/u-boot-socfpga

ddr: altera: Init the rule ID in debug code

Init the rule ID, otherwise the debug code will always dump the
protection settings entry 0.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang Se

ddr: altera: Init the rule ID in debug code

Init the rule ID, otherwise the debug code will always dump the
protection settings entry 0.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Chin Liang See <clsee@altera.com>
Cc: Dinh Nguyen <dinguyen@opensource.altera.com>
Cc: Dinh Nguyen <dinh.linux@gmail.com>

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ddr: altera: sdram: Make sdram_start and sdram_end into u32

Originally, both sdram_start and sdram_end were 64b values. The
sdram_start had no reason for being so, since our address space
is only 32

ddr: altera: sdram: Make sdram_start and sdram_end into u32

Originally, both sdram_start and sdram_end were 64b values. The
sdram_start had no reason for being so, since our address space
is only 32b, so switching sdram_start to u32 is simple.

The sdram_end is a bit more complex, since it can actually be
set to (1 << 32) if someone really wanted to use an SoCFPGA with
4 GiB of DRAM and fixed the code around a little. But, the code
handling the protection rules internally decrements the sdram_end
variable anyway. Thus, instead of calling the code and passing in
the address of the SDRAM end, pass in the address already decremented
by one. This lets the sdram_end be 32b as well.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Minor cleanup in sdram_get_rule()

Fix the data types and zap unnecessary type change.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Minor cleanup in sdram_set_rule()

Zap an obscure unneeded cast and clean other minor nits in this function.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Add missing kerneldoc

Add kerneldoc to functions which are missing it, but are already
cleaned up.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Clean up sdram_write_verify()

Clean the function up so that it's obvious what it is doing,
fix the formating strings in debug outputs, add kerneldoc.
Make the function return pro

ddr: altera: sdram: Clean up sdram_write_verify()

Clean the function up so that it's obvious what it is doing,
fix the formating strings in debug outputs, add kerneldoc.
Make the function return proper errno-compliant return values
and propagate this change throughout sdram.c

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_calculate_size() part 2

Clean up coding style, mostly clean up comments, add kerneldoc.
Also, zap assignment of the "cs" variable, which is outright
dead code, so

ddr: altera: sdram: Clean up sdram_calculate_size() part 2

Clean up coding style, mostly clean up comments, add kerneldoc.
Also, zap assignment of the "cs" variable, which is outright
dead code, so just remove it.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_calculate_size() part 1

Pluck out all of the CONFIG_HPS_SDR_CTRLCFG_* macros. This change
makes sdram.c completely clear of these macros and allows removing
of the

ddr: altera: sdram: Clean up sdram_calculate_size() part 1

Pluck out all of the CONFIG_HPS_SDR_CTRLCFG_* macros. This change
makes sdram.c completely clear of these macros and allows removing
of the ugly include of sdram.h . The namespace is now a much nicer
place!

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Introduce socfpga_sdram_get_config()

Introduce socfpga_sdram_get_config() function implement in a board file,
which returns the socfpga_sdram_config structure. This is the last s

ddr: altera: sdram: Introduce socfpga_sdram_get_config()

Introduce socfpga_sdram_get_config() function implement in a board file,
which returns the socfpga_sdram_config structure. This is the last step
in cleaning up the socfpga_mmr_init_full(), but not the last step which
allows removing the inclusion of sdram.h from drivers/ddr/altera/sdram.c
thus far.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_mmr_init_full() part 8

Fix the return value so that standard errno return values can be used.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 7

Add kerneldoc.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 6

Pull out the block of register programming into a separate function.

Signed-off-by: Marek Vasut <marex@denx.de>

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 5

Rework remaining two register setting functions such that they only
return the final register value. Move the register setting into the
bloc

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 5

Rework remaining two register setting functions such that they only
return the final register value. Move the register setting into the
block of register I/O in sdram_mmr_init_full().

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_mmr_init_full() part 4

Merge sdr_set_*() functions which are just setting registers among
the sea of register setting in sdram_mmr_init_full(). There is no
need to

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 4

Merge sdr_set_*() functions which are just setting registers among
the sea of register setting in sdram_mmr_init_full(). There is no
need to keep them separate this way, there is nothing special about
them.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_mmr_init_full() part 3

Pluck out the remaining CONFIG_HPS_SDR_CTRLCFG_ and put it into
the socfpga_sdram_config structure.

Signed-off-by: Marek Vasut <marex@denx.

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 3

Pluck out the remaining CONFIG_HPS_SDR_CTRLCFG_ and put it into
the socfpga_sdram_config structure.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_mmr_init_full() part 2

Suck out all the CONFIG_HPS_SDR_CTRLCFG_* from sdram_mmr_init_full()
into the socfpga_sdram_config structure. There is still one ugly
macro

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 2

Suck out all the CONFIG_HPS_SDR_CTRLCFG_* from sdram_mmr_init_full()
into the socfpga_sdram_config structure. There is still one ugly
macro left behind, but this will be taken care of in subsequent patch.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up sdram_mmr_init_full() part 1

Zap all the ad-hoc readbacks from the registers and other useless
and broken debug output. This is really not useful and is only
confusing.

ddr: altera: sdram: Clean up sdram_mmr_init_full() part 1

Zap all the ad-hoc readbacks from the registers and other useless
and broken debug output. This is really not useful and is only
confusing.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Introduce socfpga_sdram_config() structure

Introduce this seemingly massive structure, which holds required values
of all the registers of the SDRAM controller. The idea here is

ddr: altera: sdram: Introduce socfpga_sdram_config() structure

Introduce this seemingly massive structure, which holds required values
of all the registers of the SDRAM controller. The idea here is to avoid
including the sdram.h header file, which is full of ad-hoc macros that
polute the global namespace. Once the cleanup of sdram.c would be complete
and all registers would be loaded from this new socfpga_sdram_config, a
board file will only pass this structure into the sdram.c . This will
hide all the horrors generated by QTS in the board directory.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up set_sdr_mp_threshold()

Get rid of the constant clrsetbits_le32(), instead prepare the whole
content of the register once and write it at the end of the function.

Signed

ddr: altera: sdram: Clean up set_sdr_mp_threshold()

Get rid of the constant clrsetbits_le32(), instead prepare the whole
content of the register once and write it at the end of the function.

Signed-off-by: Marek Vasut <marex@denx.de>

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ddr: altera: sdram: Clean up set_sdr_mp_pacing()

Get rid of the constant clrsetbits_le32(), instead prepare the whole
content of the register once and write it at the end of the function.

Signed-of

ddr: altera: sdram: Clean up set_sdr_mp_pacing()

Get rid of the constant clrsetbits_le32(), instead prepare the whole
content of the register once and write it at the end of the function.

Signed-off-by: Marek Vasut <marex@denx.de>

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