2 * Copyright 2013 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
9 struct board_specific_parameters {
11 u32 datarate_mhz_high;
23 * These tables contain all valid speeds we want to override with board
24 * specific parameters. datarate_mhz_high values need to be in ascending order
25 * for each n_ranks group.
28 #ifdef CONFIG_T4240QDS
29 static const struct board_specific_parameters udimm0[] = {
32 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
33 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
35 {2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
36 {2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0},
37 {2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0},
38 {2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0},
39 {2, 1900, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
40 {2, 2140, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
41 {1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
42 {1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0},
43 {1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0},
44 {1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0},
48 static const struct board_specific_parameters rdimm0[] = {
51 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
52 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
54 {4, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
55 {4, 1666, 0, 5, 11, 0x0a080706, 0x07090906, 0xff, 2, 0},
56 {4, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
57 {2, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
58 {2, 1666, 0, 5, 11, 0x0a090806, 0x08090a06, 0xff, 2, 0},
59 {2, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
60 {1, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
61 {1, 1666, 0, 5, 11, 0x0a090806, 0x08090a06, 0xff, 2, 0},
62 {1, 2140, 0, 4, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
66 #else /* CONFIG_T4240EMU */
67 static const struct board_specific_parameters udimm0[] = {
70 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
71 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
73 {2, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
74 {1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
78 static const struct board_specific_parameters rdimm0[] = {
81 * num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
82 * ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
84 {4, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
85 {2, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
86 {1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
89 #endif /* CONFIG_T4240EMU */
92 * The three slots have slightly different timing. The center values are good
93 * for all slots. We use identical speed tables for them. In future use, if
94 * DIMMs require separated tables, make more entries as needed.
96 static const struct board_specific_parameters *udimms[] = {
101 * The three slots have slightly different timing. See comments above.
103 static const struct board_specific_parameters *rdimms[] = {