/* * Copyright 2014 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 {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A,}, {2, 1900, 0, 4, 6, 0x08080A0C, 0x0D0E0F0A,}, {1, 1666, 0, 4, 8, 0x090A0B0B, 0x0C0D0E0C,}, {1, 1900, 0, 4, 9, 0x0A0B0C0B, 0x0D0E0F0D,}, {1, 2200, 0, 4, 10, 0x0B0C0D0C, 0x0E0F110E,}, #elif defined(CONFIG_SYS_FSL_DDR3) {1, 833, 1, 6, 8, 0x06060607, 0x08080807, 0x1f, 2, 0}, {1, 1350, 1, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0}, {1, 833, 2, 6, 8, 0x06060607, 0x08080807, 0x1f, 2, 0}, {1, 1350, 2, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0}, {2, 833, 4, 6, 8, 0x06060607, 0x08080807, 0x1f, 2, 0}, {2, 1350, 4, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0}, {2, 1350, 0, 6, 8, 0x0708080A, 0x0A0B0C09, 0x1f, 2, 0}, {2, 1666, 4, 4, 0xa, 0x0B08090C, 0x0B0E0D0A, 0x1f, 2, 0}, {2, 1666, 0, 4, 0xa, 0x0B08090C, 0x0B0E0D0A, 0x1f, 2, 0}, #else #error DDR type not defined #endif {} }; static const struct board_specific_parameters *udimms[] = { udimm0, }; #endif