Commit Graph

5 Commits

Author SHA1 Message Date
Marek Vasut
af50d92ae7 ARM: imx: ddr: Add deskew register programming
Fill is code for programming the DDR_PHY_CMD_DESKEW_CONx registers,
which are optional, but can be used to fill in the byte lane delays.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2020-08-17 17:55:49 +02:00
Marek Vasut
cb82ee25f7 ARM: imx: ddr: Fill in missing DDRC ZQCTLx on i.MX7
The iMX7 defines further DDRC ZQCTLx registers, however those were
thus far missing from the list of registers and not programmed. On
systems with LPDDR2 or DDR3, those registers must be programmed with
correct values, otherwise the DRAM may not work. However, existing
systems which worked without programming these registers before are
now setting those registers to 0, which is the default value, so no
functional change there.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP i.MX U-Boot Team <uboot-imx@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
2020-06-22 17:44:06 +02:00
Simon Glass
cd93d625fd common: Drop linux/bitops.h from common header
Move this uncommon header out of the common header.

Signed-off-by: Simon Glass <sjg@chromium.org>
2020-05-18 21:19:23 -04:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
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 <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Uri Mashiach
258bad41ac imx: mx7: DDR controller configuration for the i.MX7 architecture
The configuration files imximage.cfg are used for the DDR controller
configuration.
Add DDR configuration function to replace the DDR controller
configuration in the imximage.cfg file. The function can be used for
DDR size detection.

Signed-off-by: Uri Mashiach <uri.mashiach@compulab.co.il>
2017-10-12 17:31:16 +02:00