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, 2, 5, 7, 0x0808090a, 0x0b0c0c0a}, 32 {2, 1500, 2, 5, 6, 0x07070809, 0x0a0b0b09}, 33 {2, 1600, 2, 5, 8, 0x090b0b0d, 0x0d0e0f0b}, 34 {2, 1700, 2, 4, 7, 0x080a0a0c, 0x0c0d0e0a}, 35 {2, 1900, 2, 5, 9, 0x0a0b0c0e, 0x0f10120c}, 36 {2, 2140, 2, 4, 8, 0x090a0b0d, 0x0e0f110b}, 37 {1, 1200, 2, 5, 7, 0x0808090a, 0x0b0c0c0a}, 38 {1, 1500, 2, 5, 6, 0x07070809, 0x0a0b0b09}, 39 {1, 1600, 2, 5, 8, 0x090b0b0d, 0x0d0e0f0b}, 40 {1, 1700, 2, 4, 7, 0x080a0a0c, 0x0c0d0e0a}, 41 {1, 1900, 2, 5, 9, 0x0a0b0c0e, 0x0f10120c}, 42 {1, 2140, 2, 4, 8, 0x090a0b0d, 0x0e0f110b}, 43 {} 44 }; 45 46 static const struct board_specific_parameters rdimm0[] = { 47 /* 48 * memory controller 0 49 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | 50 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | 51 */ 52 /* TODO: need tuning these parameters if RDIMM is used */ 53 {4, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 54 {4, 1666, 0, 5, 11, 0x0a080706, 0x07090906}, 55 {4, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07}, 56 {2, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 57 {2, 1666, 0, 5, 11, 0x0a090806, 0x08090a06}, 58 {2, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07}, 59 {1, 1350, 0, 5, 9, 0x08070605, 0x06070806}, 60 {1, 1666, 0, 5, 11, 0x0a090806, 0x08090a06}, 61 {1, 2140, 0, 4, 12, 0x0b090807, 0x080a0b07}, 62 {} 63 }; 64 65 static const struct board_specific_parameters *udimms[] = { 66 udimm0, 67 }; 68 69 static const struct board_specific_parameters *rdimms[] = { 70 rdimm0, 71 }; 72 #endif 73