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/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef __DDR_H__
#define __DDR_H__
struct board_specific_parameters {
u32 n_ranks;
u32 datarate_mhz_high;
u32 rank_gb;
u32 clk_adjust;
u32 wrlvl_start;
u32 wrlvl_ctl_2;
u32 wrlvl_ctl_3;
u32 cpo;
u32 write_data_delay;
u32 force_2T;
};
/*
* These tables contain all valid speeds we want to override with board
* specific parameters. datarate_mhz_high values need to be in ascending order
* for each n_ranks group.
*/
#ifdef CONFIG_T4240QDS
static const struct board_specific_parameters udimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
{2, 1350, 4, 4, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
{2, 1350, 0, 5, 7, 0x0709090b, 0x0c0c0d09, 0xff, 2, 0},
{2, 1666, 4, 4, 8, 0x080a0a0d, 0x0d10100b, 0xff, 2, 0},
{2, 1666, 0, 5, 7, 0x080a0a0c, 0x0d0d0e0a, 0xff, 2, 0},
{2, 1900, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
{2, 2140, 0, 4, 8, 0x090a0b0e, 0x0f11120c, 0xff, 2, 0},
{1, 1350, 0, 5, 8, 0x0809090b, 0x0c0c0d0a, 0xff, 2, 0},
{1, 1700, 0, 5, 8, 0x080a0a0c, 0x0c0d0e0a, 0xff, 2, 0},
{1, 1900, 0, 4, 8, 0x080a0a0c, 0x0e0e0f0a, 0xff, 2, 0},
{1, 2140, 0, 4, 8, 0x090a0b0c, 0x0e0f100b, 0xff, 2, 0},
{}
};
static const struct board_specific_parameters rdimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
{4, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
{4, 1666, 0, 5, 11, 0x0a080706, 0x07090906, 0xff, 2, 0},
{4, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
{2, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
{2, 1666, 0, 5, 11, 0x0a090806, 0x08090a06, 0xff, 2, 0},
{2, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
{1, 1350, 0, 5, 9, 0x08070605, 0x06070806, 0xff, 2, 0},
{1, 1666, 0, 5, 11, 0x0a090806, 0x08090a06, 0xff, 2, 0},
{1, 2140, 0, 4, 12, 0x0b090807, 0x080a0b07, 0xff, 2, 0},
{}
};
#else /* CONFIG_T4240EMU */
static const struct board_specific_parameters udimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
{2, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
{1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
{}
};
static const struct board_specific_parameters rdimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl | cpo |wrdata|2T
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 | |delay |
*/
{4, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
{2, 2140, 0, 5, 8, 0x0, 0x0, 0xff, 2, 0},
{1, 2140, 0, 4, 8, 0x0, 0x0, 0xff, 2, 0},
{}
};
#endif /* CONFIG_T4240EMU */
/*
* The three slots have slightly different timing. The center values are good
* for all slots. We use identical speed tables for them. In future use, if
* DIMMs require separated tables, make more entries as needed.
*/
static const struct board_specific_parameters *udimms[] = {
udimm0,
};
/*
* The three slots have slightly different timing. See comments above.
*/
static const struct board_specific_parameters *rdimms[] = {
rdimm0,
};
#endif
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