/* * Copyright 2013 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; }; /* * 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 * ranks| mhz| GB |adjst| start | ctl2 */ #ifdef CONFIG_SYS_FSL_DDR4 {2, 1600, 4, 4, 6, 0x07090A0c, 0x0e0f100a}, #elif defined(CONFIG_SYS_FSL_DDR3) {2, 833, 4, 4, 6, 0x06060607, 0x08080807}, {2, 833, 0, 4, 6, 0x06060607, 0x08080807}, {2, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09}, {2, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09}, {2, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A}, {2, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A}, {1, 833, 4, 4, 6, 0x06060607, 0x08080807}, {1, 833, 0, 4, 6, 0x06060607, 0x08080807}, {1, 1350, 4, 4, 7, 0x0708080A, 0x0A0B0C09}, {1, 1350, 0, 4, 7, 0x0708080A, 0x0A0B0C09}, {1, 1666, 4, 4, 7, 0x0808090B, 0x0C0D0E0A}, {1, 1666, 0, 4, 7, 0x0808090B, 0x0C0D0E0A}, #else #error DDR type not defined #endif {} }; #endif static const struct board_specific_parameters *udimms[] = { udimm0, };