/* * 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; }; /* * 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 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 */ {2, 2140, 0, 4, 4, 0x0, 0x0}, {1, 2140, 0, 4, 4, 0x0, 0x0}, {} }; /* DP-DDR DIMM */ static const struct board_specific_parameters udimm2[] = { /* * memory controller 2 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl * ranks| mhz| GB |adjst| start | ctl2 | ctl3 */ {2, 2140, 0, 4, 4, 0x0, 0x0}, {1, 2140, 0, 4, 4, 0x0, 0x0}, {} }; static const struct board_specific_parameters rdimm0[] = { /* * memory controller 0 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl * ranks| mhz| GB |adjst| start | ctl2 | ctl3 */ {4, 2140, 0, 5, 4, 0x0, 0x0}, {2, 2140, 0, 5, 4, 0x0, 0x0}, {1, 2140, 0, 4, 4, 0x0, 0x0}, {} }; /* DP-DDR DIMM */ static const struct board_specific_parameters rdimm2[] = { /* * memory controller 2 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl * ranks| mhz| GB |adjst| start | ctl2 | ctl3 */ {4, 2140, 0, 5, 4, 0x0, 0x0}, {2, 2140, 0, 5, 4, 0x0, 0x0}, {1, 2140, 0, 4, 4, 0x0, 0x0}, {} }; static const struct board_specific_parameters *udimms[] = { udimm0, udimm0, udimm2, }; static const struct board_specific_parameters *rdimms[] = { rdimm0, rdimm0, rdimm2, }; #endif