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u-boot/arch/arm/include/asm/arch-mx6/mx6-ddr.h
Marek Vasut d339f16911 arm: imx6: Add DDR3 calibration code for MX6 Q/D/DL 
Add DDR3 calibration code for i.MX6Q, i.MX6D and i.MX6DL. This code
fine-tunes the behavior of the MMDC controller in order to improve
the signal integrity and memory stability.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Stefano Babic <sbabic@denx.de>
2016-02-02 20:58:46 +01:00

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/*
* Copyright (C) 2013 Boundary Devices Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __ASM_ARCH_MX6_DDR_H__
#define __ASM_ARCH_MX6_DDR_H__
#ifndef CONFIG_SPL_BUILD
#ifdef CONFIG_MX6Q
#include "mx6q-ddr.h"
#else
#if defined(CONFIG_MX6DL) || defined(CONFIG_MX6S)
#include "mx6dl-ddr.h"
#else
#ifdef CONFIG_MX6SX
#include "mx6sx-ddr.h"
#else
#ifdef CONFIG_MX6UL
#include "mx6ul-ddr.h"
#else
#ifdef CONFIG_MX6SL
#include "mx6sl-ddr.h"
#else
#error "Please select cpu"
#endif /* CONFIG_MX6SL */
#endif /* CONFIG_MX6UL */
#endif /* CONFIG_MX6SX */
#endif /* CONFIG_MX6DL or CONFIG_MX6S */
#endif /* CONFIG_MX6Q */
#else
enum {
DDR_TYPE_DDR3,
DDR_TYPE_LPDDR2,
};
/* MMDC P0/P1 Registers */
struct mmdc_p_regs {
u32 mdctl;
u32 mdpdc;
u32 mdotc;
u32 mdcfg0;
u32 mdcfg1;
u32 mdcfg2;
u32 mdmisc;
u32 mdscr;
u32 mdref;
u32 res1[2];
u32 mdrwd;
u32 mdor;
u32 mdmrr;
u32 mdcfg3lp;
u32 mdmr4;
u32 mdasp;
u32 res2[239];
u32 maarcr;
u32 mapsr;
u32 maexidr0;
u32 maexidr1;
u32 madpcr0;
u32 madpcr1;
u32 madpsr0;
u32 madpsr1;
u32 madpsr2;
u32 madpsr3;
u32 madpsr4;
u32 madpsr5;
u32 masbs0;
u32 masbs1;
u32 res3[2];
u32 magenp;
u32 res4[239];
u32 mpzqhwctrl;
u32 mpzqswctrl;
u32 mpwlgcr;
u32 mpwldectrl0;
u32 mpwldectrl1;
u32 mpwldlst;
u32 mpodtctrl;
u32 mprddqby0dl;
u32 mprddqby1dl;
u32 mprddqby2dl;
u32 mprddqby3dl;
u32 mpwrdqby0dl;
u32 mpwrdqby1dl;
u32 mpwrdqby2dl;
u32 mpwrdqby3dl;
u32 mpdgctrl0;
u32 mpdgctrl1;
u32 mpdgdlst0;
u32 mprddlctl;
u32 mprddlst;
u32 mpwrdlctl;
u32 mpwrdlst;
u32 mpsdctrl;
u32 mpzqlp2ctl;
u32 mprddlhwctl;
u32 mpwrdlhwctl;
u32 mprddlhwst0;
u32 mprddlhwst1;
u32 mpwrdlhwst0;
u32 mpwrdlhwst1;
u32 mpwlhwerr;
u32 mpdghwst0;
u32 mpdghwst1;
u32 mpdghwst2;
u32 mpdghwst3;
u32 mppdcmpr1;
u32 mppdcmpr2;
u32 mpswdar0;
u32 mpswdrdr0;
u32 mpswdrdr1;
u32 mpswdrdr2;
u32 mpswdrdr3;
u32 mpswdrdr4;
u32 mpswdrdr5;
u32 mpswdrdr6;
u32 mpswdrdr7;
u32 mpmur0;
u32 mpwrcadl;
u32 mpdccr;
};
#define MX6SL_IOM_DDR_BASE 0x020e0300
struct mx6sl_iomux_ddr_regs {
u32 dram_cas;
u32 dram_cs0_b;
u32 dram_cs1_b;
u32 dram_dqm0;
u32 dram_dqm1;
u32 dram_dqm2;
u32 dram_dqm3;
u32 dram_ras;
u32 dram_reset;
u32 dram_sdba0;
u32 dram_sdba1;
u32 dram_sdba2;
u32 dram_sdcke0;
u32 dram_sdcke1;
u32 dram_sdclk_0;
u32 dram_odt0;
u32 dram_odt1;
u32 dram_sdqs0;
u32 dram_sdqs1;
u32 dram_sdqs2;
u32 dram_sdqs3;
u32 dram_sdwe_b;
};
#define MX6SL_IOM_GRP_BASE 0x020e0500
struct mx6sl_iomux_grp_regs {
u32 res1[43];
u32 grp_addds;
u32 grp_ddrmode_ctl;
u32 grp_ddrpke;
u32 grp_ddrpk;
u32 grp_ddrhys;
u32 grp_ddrmode;
u32 grp_b0ds;
u32 grp_ctlds;
u32 grp_b1ds;
u32 grp_ddr_type;
u32 grp_b2ds;
u32 grp_b3ds;
};
#define MX6UL_IOM_DDR_BASE 0x020e0200
struct mx6ul_iomux_ddr_regs {
u32 res1[17];
u32 dram_dqm0;
u32 dram_dqm1;
u32 dram_ras;
u32 dram_cas;
u32 dram_cs0;
u32 dram_cs1;
u32 dram_sdwe_b;
u32 dram_odt0;
u32 dram_odt1;
u32 dram_sdba0;
u32 dram_sdba1;
u32 dram_sdba2;
u32 dram_sdcke0;
u32 dram_sdcke1;
u32 dram_sdclk_0;
u32 dram_sdqs0;
u32 dram_sdqs1;
u32 dram_reset;
};
#define MX6UL_IOM_GRP_BASE 0x020e0400
struct mx6ul_iomux_grp_regs {
u32 res1[36];
u32 grp_addds;
u32 grp_ddrmode_ctl;
u32 grp_b0ds;
u32 grp_ddrpk;
u32 grp_ctlds;
u32 grp_b1ds;
u32 grp_ddrhys;
u32 grp_ddrpke;
u32 grp_ddrmode;
u32 grp_ddr_type;
};
#define MX6SX_IOM_DDR_BASE 0x020e0200
struct mx6sx_iomux_ddr_regs {
u32 res1[59];
u32 dram_dqm0;
u32 dram_dqm1;
u32 dram_dqm2;
u32 dram_dqm3;
u32 dram_ras;
u32 dram_cas;
u32 res2[2];
u32 dram_sdwe_b;
u32 dram_odt0;
u32 dram_odt1;
u32 dram_sdba0;
u32 dram_sdba1;
u32 dram_sdba2;
u32 dram_sdcke0;
u32 dram_sdcke1;
u32 dram_sdclk_0;
u32 dram_sdqs0;
u32 dram_sdqs1;
u32 dram_sdqs2;
u32 dram_sdqs3;
u32 dram_reset;
};
#define MX6SX_IOM_GRP_BASE 0x020e0500
struct mx6sx_iomux_grp_regs {
u32 res1[61];
u32 grp_addds;
u32 grp_ddrmode_ctl;
u32 grp_ddrpke;
u32 grp_ddrpk;
u32 grp_ddrhys;
u32 grp_ddrmode;
u32 grp_b0ds;
u32 grp_b1ds;
u32 grp_ctlds;
u32 grp_ddr_type;
u32 grp_b2ds;
u32 grp_b3ds;
};
/*
* MMDC iomux registers (pinctl/padctl) - (different for IMX6DQ vs IMX6SDL)
*/
#define MX6DQ_IOM_DDR_BASE 0x020e0500
struct mx6dq_iomux_ddr_regs {
u32 res1[3];
u32 dram_sdqs5;
u32 dram_dqm5;
u32 dram_dqm4;
u32 dram_sdqs4;
u32 dram_sdqs3;
u32 dram_dqm3;
u32 dram_sdqs2;
u32 dram_dqm2;
u32 res2[16];
u32 dram_cas;
u32 res3[2];
u32 dram_ras;
u32 dram_reset;
u32 res4[2];
u32 dram_sdclk_0;
u32 dram_sdba2;
u32 dram_sdcke0;
u32 dram_sdclk_1;
u32 dram_sdcke1;
u32 dram_sdodt0;
u32 dram_sdodt1;
u32 res5;
u32 dram_sdqs0;
u32 dram_dqm0;
u32 dram_sdqs1;
u32 dram_dqm1;
u32 dram_sdqs6;
u32 dram_dqm6;
u32 dram_sdqs7;
u32 dram_dqm7;
};
#define MX6DQ_IOM_GRP_BASE 0x020e0700
struct mx6dq_iomux_grp_regs {
u32 res1[18];
u32 grp_b7ds;
u32 grp_addds;
u32 grp_ddrmode_ctl;
u32 res2;
u32 grp_ddrpke;
u32 res3[6];
u32 grp_ddrmode;
u32 res4[3];
u32 grp_b0ds;
u32 grp_b1ds;
u32 grp_ctlds;
u32 res5;
u32 grp_b2ds;
u32 grp_ddr_type;
u32 grp_b3ds;
u32 grp_b4ds;
u32 grp_b5ds;
u32 grp_b6ds;
};
#define MX6SDL_IOM_DDR_BASE 0x020e0400
struct mx6sdl_iomux_ddr_regs {
u32 res1[25];
u32 dram_cas;
u32 res2[2];
u32 dram_dqm0;
u32 dram_dqm1;
u32 dram_dqm2;
u32 dram_dqm3;
u32 dram_dqm4;
u32 dram_dqm5;
u32 dram_dqm6;
u32 dram_dqm7;
u32 dram_ras;
u32 dram_reset;
u32 res3[2];
u32 dram_sdba2;
u32 dram_sdcke0;
u32 dram_sdcke1;
u32 dram_sdclk_0;
u32 dram_sdclk_1;
u32 dram_sdodt0;
u32 dram_sdodt1;
u32 dram_sdqs0;
u32 dram_sdqs1;
u32 dram_sdqs2;
u32 dram_sdqs3;
u32 dram_sdqs4;
u32 dram_sdqs5;
u32 dram_sdqs6;
u32 dram_sdqs7;
};
#define MX6SDL_IOM_GRP_BASE 0x020e0700
struct mx6sdl_iomux_grp_regs {
u32 res1[18];
u32 grp_b7ds;
u32 grp_addds;
u32 grp_ddrmode_ctl;
u32 grp_ddrpke;
u32 res2[2];
u32 grp_ddrmode;
u32 grp_b0ds;
u32 res3;
u32 grp_ctlds;
u32 grp_b1ds;
u32 grp_ddr_type;
u32 grp_b2ds;
u32 grp_b3ds;
u32 grp_b4ds;
u32 grp_b5ds;
u32 res4;
u32 grp_b6ds;
};
/* Device Information: Varies per DDR3 part number and speed grade */
struct mx6_ddr3_cfg {
u16 mem_speed; /* ie 1600 for DDR3-1600 (800,1066,1333,1600) */
u8 density; /* chip density (Gb) (1,2,4,8) */
u8 width; /* bus width (bits) (4,8,16) */
u8 banks; /* number of banks */
u8 rowaddr; /* row address bits (11-16)*/
u8 coladdr; /* col address bits (9-12) */
u8 pagesz; /* page size (K) (1-2) */
u16 trcd; /* tRCD=tRP=CL (ns*100) */
u16 trcmin; /* tRC min (ns*100) */
u16 trasmin; /* tRAS min (ns*100) */
u8 SRT; /* self-refresh temperature: 0=normal, 1=extended */
};
/* Device Information: Varies per LPDDR2 part number and speed grade */
struct mx6_lpddr2_cfg {
u16 mem_speed; /* ie 800 for LPDDR2-800 */
u8 density; /* chip density (Gb) (1,2,4,8) */
u8 width; /* bus width (bits) (4,8,16) */
u8 banks; /* number of banks */
u8 rowaddr; /* row address bits (11-16)*/
u8 coladdr; /* col address bits (9-12) */
u16 trcd_lp;
u16 trppb_lp;
u16 trpab_lp;
u16 trcmin; /* tRC min (ns*100) */
u16 trasmin; /* tRAS min (ns*100) */
};
/* System Information: Varies per board design, layout, and term choices */
struct mx6_ddr_sysinfo {
u8 dsize; /* size of bus (in dwords: 0=16bit,1=32bit,2=64bit) */
u8 cs_density; /* density per chip select (Gb) */
u8 ncs; /* number chip selects used (1|2) */
char cs1_mirror;/* enable address mirror (0|1) */
char bi_on; /* Bank interleaving enable */
u8 rtt_nom; /* Rtt_Nom (DDR3_RTT_*) */
u8 rtt_wr; /* Rtt_Wr (DDR3_RTT_*) */
u8 ralat; /* Read Additional Latency (0-7) */
u8 walat; /* Write Additional Latency (0-3) */
u8 mif3_mode; /* Command prediction working mode */
u8 rst_to_cke; /* Time from SDE enable to CKE rise */
u8 sde_to_rst; /* Time from SDE enable until DDR reset# is high */
u8 pd_fast_exit;/* enable precharge powerdown fast-exit */
u8 ddr_type; /* DDR type: DDR3(0) or LPDDR2(1) */
};
/*
* Board specific calibration:
* This includes write leveling calibration values as well as DQS gating
* and read/write delays. These values are board/layout/device specific.
* Freescale recommends using the i.MX6 DDR Stress Test Tool V1.0.2
* (DOC-96412) to determine these values over a range of boards and
* temperatures.
*/
struct mx6_mmdc_calibration {
/* write leveling calibration */
u32 p0_mpwldectrl0;
u32 p0_mpwldectrl1;
u32 p1_mpwldectrl0;
u32 p1_mpwldectrl1;
/* read DQS gating */
u32 p0_mpdgctrl0;
u32 p0_mpdgctrl1;
u32 p1_mpdgctrl0;
u32 p1_mpdgctrl1;
/* read delay */
u32 p0_mprddlctl;
u32 p1_mprddlctl;
/* write delay */
u32 p0_mpwrdlctl;
u32 p1_mpwrdlctl;
/* lpddr2 zq hw calibration */
u32 mpzqlp2ctl;
};
/* configure iomux (pinctl/padctl) */
void mx6dq_dram_iocfg(unsigned width,
const struct mx6dq_iomux_ddr_regs *,
const struct mx6dq_iomux_grp_regs *);
void mx6sdl_dram_iocfg(unsigned width,
const struct mx6sdl_iomux_ddr_regs *,
const struct mx6sdl_iomux_grp_regs *);
void mx6sx_dram_iocfg(unsigned width,
const struct mx6sx_iomux_ddr_regs *,
const struct mx6sx_iomux_grp_regs *);
void mx6ul_dram_iocfg(unsigned width,
const struct mx6ul_iomux_ddr_regs *,
const struct mx6ul_iomux_grp_regs *);
void mx6sl_dram_iocfg(unsigned width,
const struct mx6sl_iomux_ddr_regs *,
const struct mx6sl_iomux_grp_regs *);
#if defined(CONFIG_MX6QDL) || defined(CONFIG_MX6Q) || defined(CONFIG_MX6D)
int mmdc_do_write_level_calibration(void);
int mmdc_do_dqs_calibration(void);
#endif
/* configure mx6 mmdc registers */
void mx6_dram_cfg(const struct mx6_ddr_sysinfo *,
const struct mx6_mmdc_calibration *,
const void *);
#endif /* CONFIG_SPL_BUILD */
#define MX6_MMDC_P0_MDCTL 0x021b0000
#define MX6_MMDC_P0_MDPDC 0x021b0004
#define MX6_MMDC_P0_MDOTC 0x021b0008
#define MX6_MMDC_P0_MDCFG0 0x021b000c
#define MX6_MMDC_P0_MDCFG1 0x021b0010
#define MX6_MMDC_P0_MDCFG2 0x021b0014
#define MX6_MMDC_P0_MDMISC 0x021b0018
#define MX6_MMDC_P0_MDSCR 0x021b001c
#define MX6_MMDC_P0_MDREF 0x021b0020
#define MX6_MMDC_P0_MDRWD 0x021b002c
#define MX6_MMDC_P0_MDOR 0x021b0030
#define MX6_MMDC_P0_MDASP 0x021b0040
#define MX6_MMDC_P0_MAPSR 0x021b0404
#define MX6_MMDC_P0_MPZQHWCTRL 0x021b0800
#define MX6_MMDC_P0_MPWLDECTRL0 0x021b080c
#define MX6_MMDC_P0_MPWLDECTRL1 0x021b0810
#define MX6_MMDC_P0_MPODTCTRL 0x021b0818
#define MX6_MMDC_P0_MPRDDQBY0DL 0x021b081c
#define MX6_MMDC_P0_MPRDDQBY1DL 0x021b0820
#define MX6_MMDC_P0_MPRDDQBY2DL 0x021b0824
#define MX6_MMDC_P0_MPRDDQBY3DL 0x021b0828
#define MX6_MMDC_P0_MPDGCTRL0 0x021b083c
#define MX6_MMDC_P0_MPDGCTRL1 0x021b0840
#define MX6_MMDC_P0_MPRDDLCTL 0x021b0848
#define MX6_MMDC_P0_MPWRDLCTL 0x021b0850
#define MX6_MMDC_P0_MPMUR0 0x021b08b8
#define MX6_MMDC_P1_MDCTL 0x021b4000
#define MX6_MMDC_P1_MDPDC 0x021b4004
#define MX6_MMDC_P1_MDOTC 0x021b4008
#define MX6_MMDC_P1_MDCFG0 0x021b400c
#define MX6_MMDC_P1_MDCFG1 0x021b4010
#define MX6_MMDC_P1_MDCFG2 0x021b4014
#define MX6_MMDC_P1_MDMISC 0x021b4018
#define MX6_MMDC_P1_MDSCR 0x021b401c
#define MX6_MMDC_P1_MDREF 0x021b4020
#define MX6_MMDC_P1_MDRWD 0x021b402c
#define MX6_MMDC_P1_MDOR 0x021b4030
#define MX6_MMDC_P1_MDASP 0x021b4040
#define MX6_MMDC_P1_MAPSR 0x021b4404
#define MX6_MMDC_P1_MPZQHWCTRL 0x021b4800
#define MX6_MMDC_P1_MPWLDECTRL0 0x021b480c
#define MX6_MMDC_P1_MPWLDECTRL1 0x021b4810
#define MX6_MMDC_P1_MPODTCTRL 0x021b4818
#define MX6_MMDC_P1_MPRDDQBY0DL 0x021b481c
#define MX6_MMDC_P1_MPRDDQBY1DL 0x021b4820
#define MX6_MMDC_P1_MPRDDQBY2DL 0x021b4824
#define MX6_MMDC_P1_MPRDDQBY3DL 0x021b4828
#define MX6_MMDC_P1_MPDGCTRL0 0x021b483c
#define MX6_MMDC_P1_MPDGCTRL1 0x021b4840
#define MX6_MMDC_P1_MPRDDLCTL 0x021b4848
#define MX6_MMDC_P1_MPWRDLCTL 0x021b4850
#define MX6_MMDC_P1_MPMUR0 0x021b48b8
#endif /*__ASM_ARCH_MX6_DDR_H__ */
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