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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> |
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