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