u-boot/board/freescale/ls2085a/ddr.h
York Sun f749db3a75 ARMv8/ls2085a_emu: Add LS2085A emulator and simulator board support
LS2085A is an ARMv8 implementation. This adds board support for emulator
and simulator:
  Two DDR controllers
  UART2 is used as the console
  IFC timing is tightened for speedy booting
  Support DDR3 and DDR4 as separated targets
  Management Complex (MC) is enabled
  Support for GIC 500 (based on GICv3 arch)

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Arnab Basu <arnab.basu@freescale.com>
Signed-off-by: J. German Rivera <German.Rivera@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
2014-07-04 19:48:41 +02:00

57 lines
1.2 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},
{}
};
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},
{}
};
static const struct board_specific_parameters *udimms[] = {
udimm0,
};
static const struct board_specific_parameters *rdimms[] = {
rdimm0,
};
#endif