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/*
* Copyright 2013 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#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;
};
/*
* 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.
*/
static const struct board_specific_parameters udimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl |
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 |
*/
{2, 1200, 2, 5, 7, 0x0808090a, 0x0b0c0c0a},
{2, 1500, 2, 5, 6, 0x07070809, 0x0a0b0b09},
{2, 1600, 2, 5, 8, 0x090b0b0d, 0x0d0e0f0b},
{2, 1700, 2, 4, 7, 0x080a0a0c, 0x0c0d0e0a},
{2, 1900, 2, 5, 9, 0x0a0b0c0e, 0x0f10120c},
{2, 2140, 2, 4, 8, 0x090a0b0d, 0x0e0f110b},
{1, 1200, 2, 5, 7, 0x0808090a, 0x0b0c0c0a},
{1, 1500, 2, 5, 6, 0x07070809, 0x0a0b0b09},
{1, 1600, 2, 5, 8, 0x090b0b0d, 0x0d0e0f0b},
{1, 1700, 2, 4, 7, 0x080a0a0c, 0x0c0d0e0a},
{1, 1900, 2, 5, 9, 0x0a0b0c0e, 0x0f10120c},
{1, 2140, 2, 4, 8, 0x090a0b0d, 0x0e0f110b},
{}
};
static const struct board_specific_parameters rdimm0[] = {
/*
* memory controller 0
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl |
* ranks| mhz| GB |adjst| start | ctl2 | ctl3 |
*/
/* TODO: need tuning these parameters if RDIMM is used */
{4, 1350, 0, 5, 9, 0x08070605, 0x06070806},
{4, 1666, 0, 5, 11, 0x0a080706, 0x07090906},
{4, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07},
{2, 1350, 0, 5, 9, 0x08070605, 0x06070806},
{2, 1666, 0, 5, 11, 0x0a090806, 0x08090a06},
{2, 2140, 0, 5, 12, 0x0b090807, 0x080a0b07},
{1, 1350, 0, 5, 9, 0x08070605, 0x06070806},
{1, 1666, 0, 5, 11, 0x0a090806, 0x08090a06},
{1, 2140, 0, 4, 12, 0x0b090807, 0x080a0b07},
{}
};
static const struct board_specific_parameters *udimms[] = {
udimm0,
};
static const struct board_specific_parameters *rdimms[] = {
rdimm0,
};
#endif
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