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https://github.com/brain-hackers/u-boot-brain
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58932ec68c
Tested with MTA72ASS8G72PSZ-2S6G1. This is 3DS RDIMM module with x4 DDR chips. LS2088ARDB needs to be modified to connect all DQS signals. Some of them are grounded by default for x8 chips. Tested with RDIMM MTA18ASF2G72PDZ on main memory controllers. DP-DDR doesn't support RDIMM. Dropped related timing table. Signed-off-by: York Sun <york.sun@nxp.com>
78 lines
1.9 KiB
C
78 lines
1.9 KiB
C
/*
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* Copyright 2015 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, 0, 8, 6, 0x0708090B, 0x0C0D0E09,},
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{2, 1666, 0, 10, 9, 0x090A0B0E, 0x0F11110C,},
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{2, 1900, 0, 12, 0xA, 0x0B0C0E11, 0x1214140F,},
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{2, 2300, 0, 12, 0xB, 0x0C0D0F12, 0x14161610,},
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{}
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};
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/* DP-DDR DIMM */
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static const struct board_specific_parameters udimm2[] = {
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/*
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* memory controller 2
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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, 0, 8, 0xd, 0x0C0A0A00, 0x00000009,},
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{2, 1666, 0, 8, 0xd, 0x0C0A0A00, 0x00000009,},
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{2, 1900, 0, 8, 0xe, 0x0D0C0B00, 0x0000000A,},
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{2, 2200, 0, 8, 0xe, 0x0D0C0B00, 0x0000000A,},
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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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{2, 1666, 0, 8, 0x0F, 0x0D0C0A09, 0x0B0C0E08,},
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{2, 1900, 0, 8, 0x10, 0x0F0D0B0A, 0x0B0E0F09,},
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{2, 2200, 0, 8, 0x13, 0x120F0E0B, 0x0D10110B,},
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{}
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};
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static const struct board_specific_parameters *udimms[] = {
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udimm0,
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udimm0,
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udimm2,
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};
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static const struct board_specific_parameters *rdimms[] = {
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rdimm0,
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rdimm0,
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udimm2, /* DP-DDR doesn't support RDIMM */
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};
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#endif
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