79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __DDR_H__
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#define __DDR_H__
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struct board_specific_parameters {
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u32 n_ranks;
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u32 datarate_mhz_high;
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u32 rank_gb;
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u32 clk_adjust;
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u32 wrlvl_start;
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u32 wrlvl_ctl_2;
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u32 wrlvl_ctl_3;
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};
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/*
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* These tables contain all valid speeds we want to override with board
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* specific parameters. datarate_mhz_high values need to be in ascending order
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* for each n_ranks group.
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*/
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static const struct board_specific_parameters udimm0[] = {
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/*
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* memory controller 0
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* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
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* ranks| mhz| GB |adjst| start | ctl2 | ctl3
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*/
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{2, 1350, 4, 8, 8, 0x0809090b, 0x0c0c0d0a},
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{2, 1350, 0, 10, 7, 0x0709090b, 0x0c0c0d09},
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{2, 1666, 4, 8, 8, 0x080a0a0d, 0x0d10100b},
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{2, 1666, 0, 10, 7, 0x080a0a0c, 0x0d0d0e0a},
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{2, 1900, 0, 8, 8, 0x090a0b0e, 0x0f11120c},
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{2, 2140, 0, 8, 8, 0x090a0b0e, 0x0f11120c},
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{1, 1350, 0, 10, 8, 0x0809090b, 0x0c0c0d0a},
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{1, 1700, 0, 10, 8, 0x080a0a0c, 0x0c0d0e0a},
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{1, 1900, 0, 8, 8, 0x080a0a0c, 0x0e0e0f0a},
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{1, 2140, 0, 8, 8, 0x090a0b0c, 0x0e0f100b},
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{}
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};
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static const struct board_specific_parameters rdimm0[] = {
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/*
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* memory controller 0
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* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
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* ranks| mhz| GB |adjst| start | ctl2 | ctl3
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*/
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{4, 1350, 0, 10, 9, 0x08070605, 0x06070806},
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{4, 1666, 0, 10, 11, 0x0a080706, 0x07090906},
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{4, 2140, 0, 10, 12, 0x0b090807, 0x080a0b07},
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{2, 1350, 0, 10, 9, 0x08070605, 0x06070806},
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{2, 1666, 0, 10, 11, 0x0a090806, 0x08090a06},
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{2, 2140, 0, 10, 12, 0x0b090807, 0x080a0b07},
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{1, 1350, 0, 10, 9, 0x08070605, 0x06070806},
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{1, 1666, 0, 10, 11, 0x0a090806, 0x08090a06},
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{1, 2140, 0, 8, 12, 0x0b090807, 0x080a0b07},
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{}
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};
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/*
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* The three slots have slightly different timing. The center values are good
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* for all slots. We use identical speed tables for them. In future use, if
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* DIMMs require separated tables, make more entries as needed.
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*/
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static const struct board_specific_parameters *udimms[] = {
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udimm0,
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};
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/*
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* The three slots have slightly different timing. See comments above.
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*/
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static const struct board_specific_parameters *rdimms[] = {
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rdimm0,
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};
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#endif
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