marvell/a38x/mv_ddr4_training_calibration.c

40 static u8 center_low_element_get(u8 dir, u8 pbs_element, u16 lambda, u8 pbs_max_val)
45 		result = pbs_element * lambda / PBS_VAL_FACTOR;
47 		result = (pbs_max_val - pbs_element) * lambda / PBS_VAL_FACTOR;
52 static u8 center_high_element_get(u8 dir, u8 pbs_element, u16 lambda, u8 pbs_max_val)
57 		result = (pbs_max_val - pbs_element) * lambda / PBS_VAL_FACTOR;
59 		result = pbs_element * lambda / PBS_VAL_FACTOR;
64 static int mv_ddr4_centralization(u8 dev_num, u16 (*lambda)[MAX_BUS_NUM][BUS_WIDTH_IN_BITS], u8 (*copt)[MAX_BUS_NUM],
67 static int mv_ddr4_dqs_reposition(u8 dir, u16 *lambda, u8 *pbs_result, char delta, u8 *copt, u8 *dqs_pbs);
68 static int mv_ddr4_copt_get(u8 dir, u16 *lambda, u8 *vw_l, u8 *vw_h, u8 *pbs_result, u8 *copt);
331 static int mv_ddr4_centralization(u8 dev_num, u16 (*lambda)[MAX_BUS_NUM][BUS_WIDTH_IN_BITS], u8 (*copt)[MAX_BUS_NUM],
604 				status = mv_ddr4_copt_get(mode, lambda[if_id][subphy_num],
647 						mv_ddr4_copt_get(mode, lambda[if_id][subphy_num],
677  *	lambda - a pointer to adll to pbs ration multiplied by PBS_VAL_FACTOR
688 static int mv_ddr4_copt_get(u8 dir, u16 *lambda, u8 *vw_l, u8 *vw_h, u8 *pbs_result, u8 *copt)
710 	/* lambda calculated as D * PBS_VALUE_FACTOR / d */
721 		center_low_el = center_low_element_get(dir, pbs_taps_per_dq[dq_idx], lambda[dq_idx], pbs_max);
724 		center_high_el = center_high_element_get(dir, pbs_taps_per_dq[dq_idx], lambda[dq_idx], pbs_max);
745 						     PBS_VAL_FACTOR / lambda[dq_idx];
748 						     PBS_VAL_FACTOR / lambda[dq_idx];
762 						  ("vw_l[%d], vw_lh[%d], lambda[%d]\n",
763 						   vw_l[dq_idx], vw_h[dq_idx], lambda[dq_idx]));
817 									     PBS_VAL_FACTOR / lambda[dq_idx];
823 									     PBS_VAL_FACTOR / lambda[dq_idx];
839 							  ("lambda: %d, %d, %d, %d, %d, %d, %d, %d\n",
840 							   lambda[0], lambda[1], lambda[2], lambda[3],
841 							   lambda[4], lambda[5], lambda[6], lambda[7]));
888  *	lambda - a pointer to adll to pbs ration multiplied by PBS_VAL_FACTOR
898 static int mv_ddr4_dqs_reposition(u8 dir, u16 *lambda, u8 *pbs_result, char delta, u8 *copt, u8 *dqs_pbs)
904 	/* lambda calculated as D * X / d */
908 		lambda_avg += lambda[dq_idx];
1118 	u32 pbs_tap_factor0 = PBS_VAL_FACTOR * NOMINAL_PBS_DLY / adll_tap; /* init lambda */