1 /* 2 * Copyright 2013 Freescale Semiconductor, Inc. 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #ifndef __DDR_H__ 8 #define __DDR_H__ 9 struct board_specific_parameters { 10 u32 n_ranks; 11 u32 datarate_mhz_high; 12 u32 rank_gb; 13 u32 clk_adjust; 14 u32 wrlvl_start; 15 u32 wrlvl_ctl_2; 16 u32 wrlvl_ctl_3; 17 }; 18 19 /* 20 * These tables contain all valid speeds we want to override with board 21 * specific parameters. datarate_mhz_high values need to be in ascending order 22 * for each n_ranks group. 23 */ 24 25 static const struct board_specific_parameters udimm0[] = { 26 /* 27 * memory controller 0 28 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | 29 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | 30 */ 31 {2, 1200, 0, 5, 7, 0x0708090a, 0x0b0c0d09}, 32 {2, 1400, 0, 5, 7, 0x08090a0c, 0x0d0e0f0a}, 33 {2, 1700, 0, 5, 8, 0x090a0b0c, 0x0e10110c}, 34 {2, 1900, 0, 5, 8, 0x090b0c0f, 0x1012130d}, 35 {2, 2140, 0, 5, 8, 0x090b0c0f, 0x1012130d}, 36 {1, 1200, 0, 5, 7, 0x0808090a, 0x0b0c0c0a}, 37 {1, 1500, 0, 5, 6, 0x07070809, 0x0a0b0b09}, 38 {1, 1600, 0, 5, 8, 0x090b0b0d, 0x0d0e0f0b}, 39 {1, 1700, 0, 4, 8, 0x080a0a0c, 0x0c0d0e0a}, 40 {1, 1900, 0, 5, 8, 0x090a0c0d, 0x0e0f110c}, 41 {1, 2140, 0, 4, 8, 0x090a0b0d, 0x0e0f110b}, 42 {} 43 }; 44 45 static const struct board_specific_parameters rdimm0[] = { 46 /* 47 * memory controller 0 48 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | 49 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | 50 */ 51 /* TODO: need tuning these parameters if RDIMM is used */ 52 {4, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 53 {4, 1666, 0, 5, 11, 0x0a080706, 0x07090906}, 54 {4, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07}, 55 {2, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 56 {2, 1666, 0, 5, 11, 0x0a090806, 0x08090a06}, 57 {2, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07}, 58 {1, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 59 {1, 1666, 0, 5, 11, 0x0a090806, 0x08090a06}, 60 {1, 2140, 0, 4, 12, 0x0b090807, 0x080a0b07}, 61 {} 62 }; 63 64 static const struct board_specific_parameters *udimms[] = { 65 udimm0, 66 }; 67 68 static const struct board_specific_parameters *rdimms[] = { 69 rdimm0, 70 }; 71 #endif 72