u-boot.git/drivers/ddr/altera/sdram.c, branch master

ARM: socfpga: Rename the gen5 sdram driver to more specific name

2018-05-18T08:30:47+00:00

Current sdram driver is only applied to gen5 device, hence it is better
to rename sdram driver to more specific name which is related to gen5
device.

Signed-off-by: Tien Fong Chee

SPDX: Convert all of our single license tags to Linux Kernel style

2018-05-07T13:34:12+00:00

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini

Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR

2018-04-27T18:54:48+00:00

We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini

ddr: altera: Configuring SDRAM extra cycles timing parameters

2016-10-27T06:03:07+00:00

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 
Cc: Marek Vasut 
Cc: Dinh Nguyen

ddr: altera: Fix DRAM end value in protection rule

2016-04-20T09:28:44+00:00

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 
Cc: Dinh Nguyen 
Cc: Chin Liang See

ddr: altera: Init the rule ID in debug code

2016-01-16T06:07:22+00:00

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

Signed-off-by: Marek Vasut 
Cc: Chin Liang See 
Cc: Dinh Nguyen 
Cc: Dinh Nguyen

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

2015-08-08T12:14:28+00:00

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

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

2015-08-08T12:14:28+00:00

Fix the data types and zap unnecessary type change.

Signed-off-by: Marek Vasut

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

2015-08-08T12:14:28+00:00

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

Signed-off-by: Marek Vasut

ddr: altera: sdram: Add missing kerneldoc

2015-08-08T12:14:28+00:00

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

Signed-off-by: Marek Vasut