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path: root/drivers/ddr/altera
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2015-08-08ddr: altera: sdram: Clean up set_sdr_mp_threshold()Marek Vasut1-13/+11
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_mp_pacing()Marek Vasut1-21/+16
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_mp_weight()Marek Vasut1-21/+16
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_fifo_cfg()Marek Vasut1-7/+7
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_static_cfg()Marek Vasut1-8/+7
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_addr_rw()Marek Vasut1-20/+10
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>
2015-08-08ddr: altera: sdram: Clean up set_sdr_dram_timing*()Marek Vasut1-93/+53
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. Merge set_sdr_dram_timing{1,2,3,4,lowpwr}() into single function set_sdr_dram_timing() , since there's no point in keeping all this stuff separate anymore. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: sdram: Clean up set_sdr_ctrlcfg()Marek Vasut1-38/+24
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. The big plan here is to remove all the CONFIG_HPS_SDR_ macros, hide them in QTS compatibility layer in board implementation and pass only a small structure into the driver. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: sdram: Clean up compute_errata_rows() part 2Marek Vasut1-15/+20
Remove all parameters of this function, since they are only constants passed in from another function, so make them local. Also, rename the function to get_errata_rows() as this is closer to what it does. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: sdram: Clean up compute_errata_rows() part 1Marek Vasut1-7/+7
Clean up weird parenthesis and odd type casts from the function. Fix comment style. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: sdram: Switch to generic_hweight32()Marek Vasut1-1/+1
Use generic function instead of CPU-specific one. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 5Marek Vasut1-3/+5
Add kerneldoc. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 4Marek Vasut1-12/+5
Simplify the loop code, optimizing compiler can deal with this. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 3Marek Vasut1-18/+6
Clean up the computation of c_loop, outer and inner variables. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 2Marek Vasut1-8/+10
Factor out (afi_clocks - 1) into a single place instead of having it all around the function. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up of delay_for_n_mem_clocks() part 1Marek Vasut1-14/+13
Fix data types, clean up comments a bit and fix coding style a bit. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Minor clean up of rw_mgr_mem_handoff()Marek Vasut1-7/+8
Add kerneldoc and perform a minor comment cleanup. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_lfifo()Marek Vasut1-22/+27
Minor coding style cleanup, add kerneldoc. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_end()Marek Vasut1-38/+21
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 <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test_issue()Marek Vasut1-13/+18
Brief clean, add kerneldoc. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 3Marek Vasut1-1/+11
Add kerneldoc. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 2Marek Vasut1-39/+36
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 <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_write_test() part 1Marek Vasut1-205/+201
Move code around to get rid of the forward declaration. No change to the actual code. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 5Marek Vasut1-1/+6
Add kerneldoc. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 4Marek Vasut1-6/+7
Fix return values to match the common return value convention. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 3Marek Vasut1-3/+2
Zap the useless addr variable. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 2Marek Vasut1-79/+88
Factor out common code for searching best DM/DQS window. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes_center() part 1Marek Vasut1-61/+63
Fix data types and constify where applicable, fix broken multiline debug strings and fix comments. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 11Marek Vasut1-1/+10
Add kerneldoc, no functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 10Marek Vasut1-4/+7
Fix the return value of the function to match common convention where 0 means success and negative means error. Fix the return values in case of an error to use errno.h codes. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 9Marek Vasut1-18/+17
The read_group and write_group arguments are the same in all cases when this function is invoked, just merge them into one rw_group argument. Also, clean up the function argument data types and constify them. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 8Marek Vasut1-18/+15
The search_stop_check() always resets the bit_chk to a new value, so bit_chk will never survive between search_left_edge() and search_right_edge() invocation. There is thus no need to pass it into these functions, so make bit_chk local to them. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 7Marek Vasut1-12/+9
Perform minor reordering of the function to make the code more organised, no functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 6Marek Vasut1-89/+88
Factor out center_dq_windows(), which is common code between stage 2 and stage 3 of the calibration again and cater for the minor differences. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 5Marek Vasut1-46/+44
Factor out the get_window_mid_index() for finding the best DQ window centering. This is again code common to two stages, so pull it out. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 4Marek Vasut1-17/+23
First of all, don't break strings in the debug_cond() calls across multiple lines. Next, zap a couple of really odd casts in the code. Finally, make i into a signed variable, so it is possible to avoid constructs of the form: for (i = FOO;; i--) { <code>; if (i == 0) break; }. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 3Marek Vasut1-66/+60
Factor out common code from search_left_edge() and search_right_edge() which checks whether searching for the window edge should stop. The code is almost identical, so pull it into separate function and cater for the minor differences. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 2Marek Vasut1-170/+146
Factor out common code from rw_mgr_mem_calibrate_writes_center() and rw_mgr_mem_calibrate_vfifo_center() for searching for the left edge of the window. The code is almost identical, so pull it into separate function and cater for the minor differences. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_center() part 1Marek Vasut1-221/+197
Factor out common code from rw_mgr_mem_calibrate_writes_center() and rw_mgr_mem_calibrate_vfifo_center() for searching for the right edge of the window. The code is almost identical, so pull it into separate function and cater for the minor differences. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_writes()Marek Vasut1-12/+24
Reorder the content of the function a little and fix the comments so they at least become full sentences. Constify function args. Fix the return value to match the common convention of 0 meaning success. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 5Marek Vasut1-4/+13
Make the function documentation into kerneldoc. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 4Marek Vasut1-9/+11
Clean up the inner loop a bit. No functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 3Marek Vasut1-4/+3
The C language has signed types, so make use of them. Fix this obscene loop, which tries to do away with unsigned type, but just makes the code more cryptic. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 2Marek Vasut1-15/+15
Clean up data types and constify where applicable. No function change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test() part 1Marek Vasut1-13/+16
Clean up the debug output handling at the end of the function and factor out common function call from the condition. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_read_test_all_ranks()Marek Vasut1-15/+25
Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase() part 7Marek Vasut1-0/+6
Add kerneldoc, no functional change. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase() part 6Marek Vasut1-17/+14
Fix the return value to match common conventions and propagate this change through the code. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase() part 5Marek Vasut1-6/+6
Fix the data types, constify where applicable. Signed-off-by: Marek Vasut <marex@denx.de>
2015-08-08ddr: altera: Clean up rw_mgr_mem_calibrate_vfifo_find_dqs_en_phase() part 4Marek Vasut1-54/+49
Implement common sdr_find_phase_delay() function and convert all places which use such code to this unified function. No functional change to the code. Signed-off-by: Marek Vasut <marex@denx.de>
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