In commit 3fc92a215b ("ddr: marvell: a38x: fix SPLIT_OUT_MIX state
decision") I ported a cleaned up and changed version of patch
mv_ddr: a380: fix SPLIT_OUT_MIX state decision
In the port we removed checking for BYTE_HOMOGENEOUS_SPLIT_OUT bit,
because:
- the fix seemed to work without it
- the bit was checked for only at one place out of two, while the second
bit, BYTE_SPLIT_OUT_MIX, was checked for in both cases
- without the removal it didn't work on Allied Telesis' x530 board
We recently had a chance to test on more boards, and it seems that the
change needs to be opposite: instead of removing the check for
BYTE_HOMOGENEOUS_SPLIT_OUT from the first if() statement, the check
needs to be added also to the second one - it needs to be at both
places.
With this change all the Turris Omnia boards I have had available to
test seem to work, I didn't encounter not even one failed DDR training.
As last time, I am noting that I do not understand what this code is
actually doing, I haven't studied the DDR training algorithm and
I suspect that no one will be able to explain it to U-Boot contributors,
so we are left with this blind poking in the code with testing whether
it works on several boards and hoping it doesn't break anything for
anyone :-(.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This is a cleaned up and fixed version of a patch
mv_ddr: a380: fix SPLIT_OUT_MIX state decision
in each pattern cycle the bus state can be changed
in order to avoide it, need to back to the same bus state on each
pattern cycle
by
Moti Boskula <motib@marvell.com>
The original patch is not in Marvell's mv-ddr-marvell repository. It was
gives to us by Marvell to fix an issues with DDR training on some
boards, but it cannot be applied as is to mv-ddr-marvell, because it is
a very dirty draft patch that would certainly break other things, mainly
DDR4 training code in mv-ddr-marvell, since it changes common functions.
I have cleaned up the patch and removed stuff that seemed unnecessary
(when removed, it still fixed things). Note that I don't understand
completely what the code does exactly, since I haven't studied the DDR
training code extensively (and I suspect that no one besides some few
people in Marvell understand the code completely).
Anyway after the cleanup the patch still fixes isssues with DDR training
on the failing boards.
There was also a problem with the original patch on some of the Allied
Telesis' x530 boards, reported by Chris Packham. I have asked Chris to
send me some logs, and managed to fix it:
- if you look at the change, you'll notice that it introduces
subtraction of cur_start_win[] and cur_end_win[] members, depending on
a bit set in the current_byte_status variable
- the original patch subtracted cur_start_win[] if either
BYTE_SPLIT_OUT_MIX or BYTE_HOMOGENEOUS_SPLIT_OUT bits were set, but
subtracted cur_end_win[] only if the first one (BYTE_SPLIT_OUT_MIX)
was set
- from Chris Packham logs I discovered that the x530 board where the
original patch introduced DDR training failure, only the
BYTE_HOMOGENEOUS_SPLIT_OUT bit was set, and on our boards where the
patch is needed only the BYTE_SPLIT_OUT_MIX is set in the
current_byte_status variable
- this led me to the hypothesis that both cur_start_win[] and
cur_end_win[] should be subtracted only if BYTE_SPLIT_OUT_MIX bit is
set, the BYTE_HOMOGENEOUS_SPLIT_OUT bit shouldn't be considered at all
- this hypothesis also gains credibility when considering the commit
title ("fix SPLIT_OUT_MIX state decision")
Hopefully this will fix things without breaking anything else.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Chris Packham <judge.packham@gmail.com>
Before commit 4c289425752f ("mv_ddr: a38x: add support for ddr async
mode"), Asynchornous Mode was only used when the CPU Subsystem Clock
Options[4:0] field in the SAR1 register was set to value 0x13: CPU at
2 GHz and DDR at 933 MHz.
Then commit 4c289425752f ("mv_ddr: a38x: add support for ddr async
mode") added support for Asynchornous Modes with frequencies other than
933 MHz (but at least 467 MHz), but the code it added to check for
whether Asynchornous Mode should be used is wrong: it checks whether the
frequency setting in board DDR topology map is set to value other than
MV_DDR_FREQ_SAR.
Thus boards which define a specific value, greater than 400 MHz, for DDR
frequency in their board topology (e.g. Turris Omnia defines
MV_DDR_FREQ_800), are incorrectly put into Asynchornous Mode after that
commit.
The A38x Functional Specification, section 10.12 DRAM Clocking, says:
In Synchornous mode, the DRAM and CPU clocks are edge aligned and run
in 1:2 or 1:3 CPU to DRAM frequency ratios.
Change the check for whether Asynchornous Mode should be used according
to this explanation in Functional Specification.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
With gcc-11 we see:
drivers/ddr/marvell/a38x/ddr3_debug.c:672:47: error: argument 2 of type 'u32[5]' {aka 'unsigned int[5]'} with mismatched bound [-Werror=array-parameter=]
672 | int ddr3_tip_read_adll_value(u32 dev_num, u32 pup_values[MAX_INTERFACE_NUM * MAX_BUS_NUM],
| ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from drivers/ddr/marvell/a38x/ddr3_training_ip_engine.h:10,
from drivers/ddr/marvell/a38x/ddr3_init.h:17,
from drivers/ddr/marvell/a38x/ddr3_debug.c:6:
drivers/ddr/marvell/a38x/ddr3_training_ip_flow.h:116:47: note: previously declared as 'u32[]' {aka 'unsigned int[]'}
And similar warnings. Correct these by updating the prototype. Remove
the prototype for ddr3_tip_read_pup_value as it is unused.
Signed-off-by: Tom Rini <trini@konsulko.com>
Config option ARMADA_39X is never set so remove all dead code hidden under
ifdef CONFIG_ARMADA_39X blocks.
Also remove useless checks for CONFIG_ARMADA_38X define as this macro is
always defined for a38x code path.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This syncs drivers/ddr/marvell/a38x/ with the master branch of repository
https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell.git up to the
commit 7c351731d196 ("Merge pull request #29 from pali/sync-a38x-uboot").
This patch was created by following steps:
1. Replace all a38x files in U-Boot tree by files from upstream github
Marvell mv-ddr-marvell repository.
2. Run following command to omit portions not relevant for a38x and ddr3:
files=drivers/ddr/marvell/a38x/*
sed 's/#if defined(CONFIG_ARMADA_38X) || defined(CONFIG_ARMADA_39X)/#ifdef TRUE/' -i $files
unifdef -m -UMV_DDR -UMV_DDR_ATF -UCONFIG_DDR4 -UCONFIG_APN806 \
-UCONFIG_MC_STATIC -UCONFIG_MC_STATIC_PRINT -UCONFIG_PHY_STATIC \
-UCONFIG_PHY_STATIC_PRINT -UCONFIG_CUSTOMER_BOARD_SUPPORT \
-UCONFIG_A3700 -UA3900 -UA80X0 -UA70X0 -DTRUE $files
3. Manually omit SPDX-License-Identifier changes from this patch as
upstream license in upstream github repository contains long license
texts and U-Boot is using just SPDX-License-Identifier.
After applying this patch, a38x ddr3 code in upstream Marvell github
repository and in U-Boot would be fully identical. So in future applying
above steps could be used to sync code again.
The only change in this patch is removal of dead code and some fixes with
include files.
Signed-off-by: Pali Rohár <pali@kernel.org>
Tested-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
commit 258be123226f8f5cd516b7813fe201fb7d7416e9 upstream.
At this moment, only page 0 of SPD is being read but to support
smbios, we need to read page 1 also which has more info. In order
to do that, we need to allocate more space.
Signed-off-by: Sujeet Baranwal <sujeet.baranwal@cavium.com>
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Sujeet Kumar Baranwal <Sujeet.Baranwal@cavium.com>
Reviewed-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <judge.packham@gmail.com>
The code was processed with unifdef utility to omit portions not
relevant to A38x and DDR3. This removes usage of many macros, including
A70X0, A80X0 and A3900. It seems that the unifdef utility did not remove
the macros from #else comment.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Bump version of a38x DDR3 trianing to version 14.0.0 to reflect the
version in the mv-ddr-devel branch of upstream repository
https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell.git.
There is a new version numbering system, where after 18.12.0 came
1.0.0, 2.0.0, and so on until 14.0.0. So 14.0.0 is newer than 18.12.0.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 56db5d1464b44df10a02b99e615ebd6f6a35c428 upstream.
@pali suggested this change
In commit 6285efb ("mv_ddr: add support for twin-die combined memory
device") was added support for twin-die combined memory device and
default value for explicitly uninitialized structure members is zero, s
also twin_die_combined is initialized to zero. Which means COMBINED
value.
As prior this commit there was no support for twin-die combined memory
device, default value for twin_die_combined should be NOT_COMBINED. This
change change order of enum mv_ddr_twin_die to ensure that NOT_COMBINED
has value zero.
Signed-off-by: heaterC <airyguy@gmx.de>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 2bdd12dd68b1f8e27a03a3443ae49a09a14c18e4 upstream.
The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes code in ddr3_training.c.
Import this change to remain consistent with upstream.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit c8b301463d508c807a33f7b7eaea98bbda4aa35e upstream.
The funtion returnd cs size in byte instead of MB, that cause
calculation error since the caller was expected to get u32 and when he
got above 4G it refers it as 0.
The fix was to get the cs memory size from function as in MB and then
multiply it by 1MB.
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit d653b305d0b3da9727c49124683f1a6d95d5c9a5 upstream.
The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes header ddr_topology_def.h.
Import this header change to remain consistent with upstream.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 20c89a28548cdab11f88d2ec8936344af0686a1e upstream.
WL phase correcion stage is failing while using bus_width of 16bit, not
to be fix this stage is un-necessary when working with bus_width of 16
bit.
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 6285efb8a118940877522c4c07bd7c64569b4f5f upstream.
the twin-die combined memory device should be treatened as X8
device and not as X16 one
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
[ - the default value for twin_die_combined is set to NOT_COMBINED for
all boards, as this was default behaviour prior this change ]
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 2d3b9437cf38c06c4330e0de07f29476197f5e04 upstream.
The ODT enable heuristic based on active chip-selects is not always
correct. Some board might use two chip-selects, but have only one ODT
line connected. Allow board specific mv_ddr_topology_map to directly set
the ODT configuration register value.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Nadav Haklai <Nadav.Haklai@cavium.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 3908e20c6c520339e9bddb566823ae5e065d5218 upstream.
The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes header ddr_topology_def.h.
Import this header change to remain consistent with upstream.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit ab9240402a70cc02496683971779e75eff410ab4 upstream.
- function mv_ddr_spd_die_capacity_user_get() has a bug,
since it insert a user memory enum to it,
instead of SPD memory enum (which are different)
- fix: remove mv_ddr_spd_die_capacity_user_get() function.
- memory size with 64 and 32 bit already calculated correctly
at mv_ddr_mem_sz_per_cs_get() function
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Stefan Chulski <Stefan.Chulski@cavium.com>
Reviewed-by: Alex Leibovich <alexl@marvell.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 6c705ebc0d70f67ed7cae83ad1978c3305ef25be upstream.
The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes header mv_ddr_topology.h.
Import this header change to remain consistent with upstream.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 61a8910998d7b553e80f600ebe8147a8b98f0945 upstream.
Required changes made for 32bit ddr support.
An update is made to the topology map, according to
bus_act_mask, set in the dram_port.c
Signed-off-by: Alex Leibovich <alexl@marvell.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit 32800667b375ebd1f82120da0f3479b1cf52d96d upstream.
Required changes made for 32bit ddr support.
An update is made to the topology map, according to
bus_act_mask, set in the dram_port.c
Signed-off-by: Alex Leibovich <alexl@marvell.com>
Reviewed-by: Nadav Haklai <Nadav.Haklai@cavium.com>
Reviewed-by: Kostya Porotchkin <Kostya.Porotchkin@cavium.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit a165037ec26f301be75e1fabc263643683e85255 upstream.
The commit mentioned above changes non-DDR3 stuff in upstream, but it
also changes header ddr_topology_def.h.
Import this header change to remain consistent with upstream.
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
commit ce62bef8fac559e27245259882e45f19cdc293ad upstream.
- fix JIRA A7K8K-5056
- remove TEST_PATTERN write at the load patern stage earlier to WL SUP stage
- the WL SUP stage already writes this pattern to the memory, if the pattern exist at the memory
then the algorithm will fail, since it think that there are no phase to correct
Signed-off-by: Moti Buskila <motib@marvell.com>
Reviewed-by: Kostya Porotchkin <kostap@marvell.com>
Signed-off-by: Marek Behún <marek.behun@nic.cz>
Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Measurements on actual hardware shown that the read ODT is early by 3
clocks. Adjust the calculation to avoid this.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[upstream https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/22]
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Tested-by: Baruch Siach <baruch@tkos.co.il>
Reviewed-by: Stefan Roese <sr@denx.de>
In the Armada 385 functional spec (MV-S109094-00 Rev. C) the read sample
delay fields are 5 bits wide. Use the correct bitmask of 0x1f when
extracting the value.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[upstream https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/22]
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
For some layouts it is necessary to adjust the CK_DELAY parameter to
successfully complete DDR training. Add the ability to specify the
CK_DELAY in the mv_ddr_topology_map.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
This function parameter usage of load_addr was incorrectly caught in
the clarifying renames of commit bb872dd930, which results in boot
failures on Marvell A38x.
Signed-off-by: Joel Johnson <mrjoel@lixil.net>
Patch-to: Simon Glass <sjg@chromium.org>
DDR clock out might be unrelated to the number of active chip-select.
For example, the board might have two DDR components, but only one
chip-select. The clk_enable mask allows the board to enable DDR clocks
regardless of active chip-selects.
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
These global variables are quite short and generic. In fact the same name
is more often used locally for struct members and function arguments.
Add a image_ prefix to make them easier to distinguish.
Signed-off-by: Simon Glass <sjg@chromium.org>
Inactive chip-selects will give invalid values for read_sample so don't
consider them when trying to determine the overall min/max read sample.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/18]
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Based on the JEDEC standard JESD79-3F. The tRAS timings should include
the highest speed bins at a given frequency. This is similar to commit
683c67b ("mv_ddr: ddr3: fix tfaw timimg parameter") where the wrong
comparison was used in the initial implementation.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
[https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell/pull/15]
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This syncs drivers/ddr/marvell/a38x/ with the mv_ddr-armada-18.09 branch
of https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell.git.
Specifically this syncs with commit 99d772547314 ("Bump mv_ddr to
release armada-18.09.2").
The complete log of changes is best obtained from the mv-ddr-marvell.git
repository but some relevant highlights are:
ddr3: add missing txsdll parameter
ddr3: fix tfaw timimg parameter
ddr3: fix trrd timimg parameter
merge ddr3 topology header file with mv_ddr_topology one
mv_ddr: a38x: fix zero memory size scrubbing issue
The upstream code is incorporated omitting the portions not relevant to
Armada-38x and DDR3. After that a semi-automated step is used to drop
unused features with unifdef
find drivers/ddr/marvell/a38x/ -name '*.[ch]' | \
xargs unifdef -m -UMV_DDR -UMV_DDR_ATF -UCONFIG_DDR4 \
-UCONFIG_APN806 -UCONFIG_MC_STATIC \
-UCONFIG_MC_STATIC_PRINT -UCONFIG_PHY_STATIC \
-UCONFIG_64BIT -UCONFIG_A3700 -UA3900 -UA80X0 \
-UA70X0
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>
mv_ddr_build_message.c is generated in Marvell's standalone mv_ddr code.
When imported into u-boot we need to add the appropriate SPDX tag and
re-format it slightly.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Make ddr3_calc_mem_cs_size() global scope and use it in
ddr3_new_tip_ecc_scrub to correctly initialize all of DDR memory.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This restores support for configuring the timing mode based on the
ddr_topology. This was originally implemented in commit 90bcc3d38d
("driver/ddr: Add support for setting timing in hws_topology_map") but
was removed as part of the upstream sync.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
This syncs drivers/ddr/marvell/a38x/ with the mv_ddr-armada-17.10 branch
of https://github.com/MarvellEmbeddedProcessors/mv-ddr-marvell.git.
The upstream code is incorporated omitting the ddr4 and apn806 and
folding the nested a38x directory up one level. After that a
semi-automated step is used to drop unused features with unifdef
find drivers/ddr/marvell/a38x/ -name '*.[ch]' | \
xargs unifdef -m -UMV_DDR -UMV_DDR_ATF -UCONFIG_DDR4 \
-UCONFIG_APN806 -UCONFIG_MC_STATIC \
-UCONFIG_MC_STATIC_PRINT -UCONFIG_PHY_STATIC \
-UCONFIG_64BIT
INTER_REGS_BASE is updated to be defined as SOC_REGS_PHY_BASE.
Some now empty files are removed and the ternary license is replaced
with a SPDX GPL-2.0+ identifier.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
No in-tree code defines SUPPORT_STATIC_DUNIT_CONFIG or
STATIC_ALGO_SUPPORT. Remove ddr3_a38x_mc_static.h and use unifdef to
remove unused sections in the rest of the ddr/marvell/a38x code.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Move sys_env_device_rev_get() from the ddr training code to
sys_env_lib.c (which currently resides with the serdes code). This
brings sys_env_device_rev_get() into line with sys_env_device_id_get()
and sys_env_model_get().
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
PEX_CFG_DIRECT_ACCESS was defined in ddr3_hws_hw_training_def.h despite
only being used in the serdes code. Move this definition to ctrl_pex.h
where all the other PEX defines are. Also remove the duplicate
definition of PEX_DEVICE_AND_VENDOR_ID which is already defined in
ctrl_pex.h.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
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>
Update the calculation for tWR and tPD. This improves the DDR refresh
interval and brings the initialization into line with the binary blobs
currently being supplied by Marvell.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
The RD_SAMPLE_DELAY field is 5 bits so it needs to be masked with 0x1f
instead of 0xf. Rather than checking the read sample delay for all DDR
chip selects use the values for the chip selects that are actually
configured. Finally continue searching for the max_phase value even if the
current read_sample is the same as the max_read_sample.
Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
