/* * Copyright 2015 Freescale Semiconductor, Inc. * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __DDR_H__ #define __DDR_H__ struct board_specific_parameters { u32 n_ranks; u32 datarate_mhz_high; u32 rank_gb; u32 clk_adjust; u32 wrlvl_start; u32 wrlvl_ctl_2; u32 wrlvl_ctl_3; u32 cpo_override; u32 write_data_delay; u32 force_2t; }; /* * These tables contain all valid speeds we want to override with board * specific parameters. datarate_mhz_high values need to be in ascending order * for each n_ranks group. */ static const struct board_specific_parameters udimm0[] = { /* * memory controller 0 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay | */ #ifdef CONFIG_SYS_FSL_DDR4 {1, 1666, 0, 6, 7, 0x07090800, 0x00000000,}, {1, 1900, 0, 6, 7, 0x07090800, 0x00000000,}, {1, 2200, 0, 6, 7, 0x07090800, 0x00000000,}, #endif {} }; static const struct board_specific_parameters *udimms[] = { udimm0, }; #endif