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path: root/drivers/ddr/altera/sequencer.c
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2024-07-22drivers: ddr: Remove duplicate newlinesMarek Vasut
Drop all duplicate newlines. No functional change. Signed-off-by: Marek Vasut <[email protected]>
2024-05-20Restore patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"Tom Rini
As part of bringing the master branch back in to next, we need to allow for all of these changes to exist here. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-19Revert "Merge patch series "arm: dts: am62-beagleplay: Fix Beagleplay Ethernet""Tom Rini
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <[email protected]> Signed-off-by: Tom Rini <[email protected]>
2024-05-07ddr: Remove <common.h> and add needed includesTom Rini
Remove <common.h> from this driver directory and when needed add missing include files directly. Signed-off-by: Tom Rini <[email protected]>
2022-01-13drivers/ddr/altera/sequencer.c: Fix spelling of "resetting".Vagrant Cascadian
2021-09-22ddr: altera: use KBUILD_BASENAME instead of __FILE__Marek Vasut
The KBUILD_BASENAME contains just the name of the compiled module, in this case 'sequencer', rather than a full path to the compiled file. Use it to prevent pulling the full path into the U-Boot binary, which is useless and annoying. Signed-off-by: Marek Vasut <[email protected]> Cc: Siew Chin Lim <[email protected]> Cc: Simon Goldschmidt <[email protected]> Cc: Tien Fong Chee <[email protected]>
2021-02-24dm: ddr: socfpga: don't assign values that are not usedHeinrich Schuchardt
The values of left_edge[0] and right_edge[0] are overwritten before they are used. Remove the superfluous assignments. Fixes: 285b3cb939a8 ("dm: ddr: socfpga: fix gen5 ddr driver to not use bss") Signed-off-by: Heinrich Schuchardt <[email protected]> Reviewed-by: Simon Glass <[email protected]>
2020-05-18common: Drop log.h from common headerSimon Glass
Move this header out of the common header. Signed-off-by: Simon Glass <[email protected]>
2020-02-05ddr: altera: Add DDR2 support to Gen5 driverMarek Vasut
Add DDR2 support to Gen5 DRAM driver. As the DDR2 macro names generated by Quartus are named differently than the DDR3 ones, use anon unions to store them in the same structures, without growing their size. Signed-off-by: Marek Vasut <[email protected]> Cc: Ley Foon Tan <[email protected]> Cc: Simon Goldschmidt <[email protected]>
2019-07-21dm: ddr: socfpga: fix gen5 ddr driver to not use bssSimon Goldschmidt
This driver uses bss from SPL board_init_f(). Change it to move all the data from bss to a common struct allocated on the stack (64 byte). In addition to saving 28 bytes of bss, the code even gets 264 bytes smaller. Signed-off-by: Simon Goldschmidt <[email protected]>
2019-04-17arm: socfpga: move gen5 SDR driver to DMSimon Goldschmidt
To clean up reset handling for socfpga gen5, port the DDR driver to DM using UCLASS_RAM and implement proper reset handling. This gets us rid of one ad-hoc call to socfpga_per_reset(). The gen5 driver is implemented in 2 distinct files. One of it (containing the calibration training) is not touched much and is kept at using hard coded addresses since the code grows even more otherwise. SPL is changed from calling hard into the DDR driver code to just probing UCLASS_RESET and UCLASS_RAM. It is happy after finding a RAM driver after that. Signed-off-by: Simon Goldschmidt <[email protected]>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
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 <[email protected]>
2018-01-25ddr: altera: silence PHY calibration unless in debug modeGoldschmidt Simon
This driver has been using printf() including filename since it was added. Convert to using debug() instead. Signed-off-by: Simon Goldschmidt <[email protected]>
2016-04-20ddr: altera: Repair DQ window centering codeMarek Vasut
The code uses a lot of signed numbers, which ended up in variables of unsigned type, which resulted in all sorts of underflows. This in turn caused incorrect calibration on certain boards. Moreover, repair the readout of the DQ delay, which was being pulled from wrong register. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Staticize global variablesMarek Vasut
Just staticize global variables in sequencer, since there is no point in having these symbols available outside of the DDR code. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Make DLEVEL behavior inclusiveMarek Vasut
Originally, the DLEVEL selects the debug level within the sequencer code, but only displays the messages on that particular debug level. Tweak the handling such that for particular debug level, debug messages on that level and lower are displayed. This allows better regulation of debug message verbosity. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Zero DM IN delay in scc_mgr_zero_group()Marek Vasut
This one last set of delay configuration registers was not properly zeroed out originally, fix it and zero them out. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Remove unnecessary ODT mode configMarek Vasut
There is no point in resetting the ODT setting if the write test failed, since the code will always retry the calibration and thus reconfigure the ODT anyway OR the code will fail calibration and halt. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Remove unnecessary update of the SCCMarek Vasut
Every invocation of the scc_mgr_set_dqs_en_delay_all_ranks() is followed by SCC manager update. Moreover, only this function triggers the SCC manager update internally. Thus, remove the internal invocation to avoid triggering the update twice. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Fix scc_mgr_set() argument orderMarek Vasut
The code should be setting registers to zero, not one register to value. Swap the order of arguments to correct the behavior. The behavior is now in-line with code generated by Quartus 15.1 . Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Tweak DQS tracking enable handlingMarek Vasut
In the most unlikely case the DQS tracking was to be disabled, make sure we do not errornously re-enable it. Note that DQS tracking is enabled on all systems observed thus far. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2016-04-20ddr: altera: Replace ad-hoc constant with macroMarek Vasut
The bit 22 is in fact DQS tracking enable bit (dqstrken) and there is a macro for this bit already, so use it. Signed-off-by: Marek Vasut <[email protected]> Cc: Dinh Nguyen <[email protected]> Cc: Chin Liang See <[email protected]>
2015-08-23ddr: altera: Repair uninited variableMarek Vasut
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 <[email protected]>
2015-08-23ddr: altera: Replace float multiplication with integer oneMarek Vasut
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 <[email protected]>
2015-08-08ddr: altera: sequencer: Clean checkpatch issuesMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Clean data typesMarek Vasut
Replace uintNN_t with uNN. No functional change. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Pluck out misc macros from codeMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Zap SEQ_T(INIT|RESET)_CNTR._VALMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Zap VFIFO_SIZEMarek Vasut
Just use READ_VALID_FIFO_SIZE directly, no need for this macro obfuscation. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Wrap misc remaining macrosMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Pluck out IO_* macros from codeMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Wrap IO_* macrosMarek Vasut
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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Pluck out RW_MGR_* macros from codeMarek Vasut
Actually convert the sequencer code to use socfpga_sdram_rw_mgr_config instead of the RW_MGR_* macros. This is just an sed exercise here, no manual coding needed. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Wrap RW_MGR_* macrosMarek Vasut
Introduce structure socfpga_sdram_rw_mgr_config to wrap the RW manager configuration values in board file. Introduce a complementary function, socfpga_get_sdram_rwmgr_config(), 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 <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Wrap ac_rom_init and inst_rom_initMarek Vasut
Introduce two wrapper functions, socfpga_get_seq_ac_init() and socfpga_get_seq_inst_init() to avoid direct inclusion of the sequencer_auto_ac_init.h and sequencer_auto_inst_init.h QTS generated files. This reduces namespace pollution again. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Zap unused params and macrosMarek Vasut
These parameters are not used in the code, zap them and the macros which are used by them as well. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: sequencer: Move qts-generated files to board dirMarek Vasut
Move the files generated by QTS into the board directory, they should not be part of the driver files at all. Signed-off-by: Marek Vasut <[email protected]> Acked-by: Dinh Nguyen <[email protected]>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 5Marek Vasut
Add kerneldoc. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 4Marek Vasut
Simplify the loop code, optimizing compiler can deal with this. No functional change. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 3Marek Vasut
Clean up the computation of c_loop, outer and inner variables. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 2Marek Vasut
Factor out (afi_clocks - 1) into a single place instead of having it all around the function. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 1Marek Vasut
Fix data types, clean up comments a bit and fix coding style a bit. No functional change. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Minor clean up of rw_mgr_mem_handoff()Marek Vasut
Add kerneldoc and perform a minor comment cleanup. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_lfifo()Marek Vasut
Minor coding style cleanup, add kerneldoc. No functional change. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_end()Marek Vasut
This function is implementing the DDR calibration Stage 3 as described in Altera EMI_RM 2015.05.04 . The main body of this function is almost identical to Stage 1.3 (DQ/DQS centering) for all but two flags -- use_read_test and update_fom. Convert this function to call rw_mgr_mem_calibrate_dq_dqs_centering() with the correct flags set to trim down the code duplication. Moreover, reorder the remnants in the function a little and convert the function to return either 0 or -EIO in case of success and failure respectively, to match the common return value convention. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test_issue()Marek Vasut
Brief clean, add kerneldoc. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 3Marek Vasut
Add kerneldoc. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 2Marek Vasut
Clean up coding style, mostly broken multiline formatting strings in debug output. Also clean up data types and constify where applicable. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 1Marek Vasut
Move code around to get rid of the forward declaration. No change to the actual code. Signed-off-by: Marek Vasut <[email protected]>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 5Marek Vasut
Add kerneldoc. Signed-off-by: Marek Vasut <[email protected]>