mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-22 01:48:52 +09:00
![York Sun](/assets/img/avatar_default.png)
DP-DDR is used for DPAA, separated from main memory pool for general use. It has 32-bit bus width and use a standard DDR4 DIMM (64-bit). Signed-off-by: York Sun <yorksun@freescale.com>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
|
|
* Copyright 2014 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, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{1, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{}
|
|
};
|
|
|
|
/* DP-DDR DIMM */
|
|
static const struct board_specific_parameters udimm2[] = {
|
|
/*
|
|
* memory controller 2
|
|
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
|
|
* ranks| mhz| GB |adjst| start | ctl2 | ctl3
|
|
*/
|
|
{2, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{1, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{}
|
|
};
|
|
|
|
static const struct board_specific_parameters rdimm0[] = {
|
|
/*
|
|
* memory controller 0
|
|
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
|
|
* ranks| mhz| GB |adjst| start | ctl2 | ctl3
|
|
*/
|
|
{4, 2140, 0, 5, 4, 0x0, 0x0},
|
|
{2, 2140, 0, 5, 4, 0x0, 0x0},
|
|
{1, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{}
|
|
};
|
|
|
|
/* DP-DDR DIMM */
|
|
static const struct board_specific_parameters rdimm2[] = {
|
|
/*
|
|
* memory controller 2
|
|
* num| hi| rank| clk| wrlvl | wrlvl | wrlvl
|
|
* ranks| mhz| GB |adjst| start | ctl2 | ctl3
|
|
*/
|
|
{4, 2140, 0, 5, 4, 0x0, 0x0},
|
|
{2, 2140, 0, 5, 4, 0x0, 0x0},
|
|
{1, 2140, 0, 4, 4, 0x0, 0x0},
|
|
{}
|
|
};
|
|
|
|
static const struct board_specific_parameters *udimms[] = {
|
|
udimm0,
|
|
udimm0,
|
|
udimm2,
|
|
};
|
|
|
|
static const struct board_specific_parameters *rdimms[] = {
|
|
rdimm0,
|
|
rdimm0,
|
|
rdimm2,
|
|
};
|
|
|
|
|
|
#endif
|