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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2008-2016 Freescale Semiconductor, Inc.
* Copyright 2017-2018 NXP Semiconductor
*/
#ifndef FSL_DDR_H
#define FSL_DDR_H
#include <ddr_spd.h>
#include <soc/fsl/fsl_immap.h>
#define DDR_BL4 4 /* burst length 4 */
#define DDR_BC4 DDR_BL4 /* burst chop for ddr3 */
#define DDR_OTF 6 /* on-the-fly BC4 and BL8 */
#define DDR_BL8 8 /* burst length 8 */
#define DDR3_RTT_OFF 0
#define DDR3_RTT_60_OHM 1 /* RTT_Nom = RZQ/4 */
#define DDR3_RTT_120_OHM 2 /* RTT_Nom = RZQ/2 */
#define DDR3_RTT_40_OHM 3 /* RTT_Nom = RZQ/6 */
#define DDR3_RTT_20_OHM 4 /* RTT_Nom = RZQ/12 */
#define DDR3_RTT_30_OHM 5 /* RTT_Nom = RZQ/8 */
#define DDR4_RTT_OFF 0
#define DDR4_RTT_60_OHM 1 /* RZQ/4 */
#define DDR4_RTT_120_OHM 2 /* RZQ/2 */
#define DDR4_RTT_40_OHM 3 /* RZQ/6 */
#define DDR4_RTT_240_OHM 4 /* RZQ/1 */
#define DDR4_RTT_48_OHM 5 /* RZQ/5 */
#define DDR4_RTT_80_OHM 6 /* RZQ/3 */
#define DDR4_RTT_34_OHM 7 /* RZQ/7 */
#define DDR2_RTT_OFF 0
#define DDR2_RTT_75_OHM 1
#define DDR2_RTT_150_OHM 2
#define DDR2_RTT_50_OHM 3
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR1 1
#define FSL_DDR_MIN_TCKE_PULSE_WIDTH_DDR2 3
#define FSL_DDR_ODT_NEVER 0x0
#define FSL_DDR_ODT_CS 0x1
#define FSL_DDR_ODT_ALL_OTHER_CS 0x2
#define FSL_DDR_ODT_OTHER_DIMM 0x3
#define FSL_DDR_ODT_ALL 0x4
#define FSL_DDR_ODT_SAME_DIMM 0x5
#define FSL_DDR_ODT_CS_AND_OTHER_DIMM 0x6
#define FSL_DDR_ODT_OTHER_CS_ONSAMEDIMM 0x7
/* define bank(chip select) interleaving mode */
#define FSL_DDR_CS0_CS1 0x40
#define FSL_DDR_CS2_CS3 0x20
#define FSL_DDR_CS0_CS1_AND_CS2_CS3 (FSL_DDR_CS0_CS1 | FSL_DDR_CS2_CS3)
#define FSL_DDR_CS0_CS1_CS2_CS3 (FSL_DDR_CS0_CS1_AND_CS2_CS3 | 0x04)
/* define memory controller interleaving mode */
#define FSL_DDR_CACHE_LINE_INTERLEAVING 0x0
#define FSL_DDR_PAGE_INTERLEAVING 0x1
#define FSL_DDR_BANK_INTERLEAVING 0x2
#define FSL_DDR_SUPERBANK_INTERLEAVING 0x3
#define FSL_DDR_256B_INTERLEAVING 0x8
#define FSL_DDR_3WAY_1KB_INTERLEAVING 0xA
#define FSL_DDR_3WAY_4KB_INTERLEAVING 0xC
#define FSL_DDR_3WAY_8KB_INTERLEAVING 0xD
/* placeholder for 4-way interleaving */
#define FSL_DDR_4WAY_1KB_INTERLEAVING 0x1A
#define FSL_DDR_4WAY_4KB_INTERLEAVING 0x1C
#define FSL_DDR_4WAY_8KB_INTERLEAVING 0x1D
#define SDRAM_CS_CONFIG_EN 0x80000000
/* DDR_SDRAM_CFG - DDR SDRAM Control Configuration
*/
#define SDRAM_CFG_MEM_EN 0x80000000
#define SDRAM_CFG_SREN 0x40000000
#define SDRAM_CFG_ECC_EN 0x20000000
#define SDRAM_CFG_RD_EN 0x10000000
#define SDRAM_CFG_SDRAM_TYPE_DDR1 0x02000000
#define SDRAM_CFG_SDRAM_TYPE_DDR2 0x03000000
#define SDRAM_CFG_SDRAM_TYPE_MASK 0x07000000
#define SDRAM_CFG_SDRAM_TYPE_SHIFT 24
#define SDRAM_CFG_DYN_PWR 0x00200000
#define SDRAM_CFG_DBW_MASK 0x00180000
#define SDRAM_CFG_DBW_SHIFT 19
#define SDRAM_CFG_32_BE 0x00080000
#define SDRAM_CFG_16_BE 0x00100000
#define SDRAM_CFG_8_BE 0x00040000
#define SDRAM_CFG_NCAP 0x00020000
#define SDRAM_CFG_2T_EN 0x00008000
#define SDRAM_CFG_BI 0x00000001
#define SDRAM_CFG2_FRC_SR 0x80000000
#define SDRAM_CFG2_D_INIT 0x00000010
#define SDRAM_CFG2_AP_EN 0x00000020
#define SDRAM_CFG2_ODT_CFG_MASK 0x00600000
#define SDRAM_CFG2_ODT_NEVER 0
#define SDRAM_CFG2_ODT_ONLY_WRITE 1
#define SDRAM_CFG2_ODT_ONLY_READ 2
#define SDRAM_CFG2_ODT_ALWAYS 3
#define SDRAM_INTERVAL_BSTOPRE 0x3FFF
#define TIMING_CFG_2_CPO_MASK 0x0F800000
#define RD_TO_PRE_MASK 0xf
#define RD_TO_PRE_SHIFT 13
#define WR_DATA_DELAY_MASK 0xf
#define WR_DATA_DELAY_SHIFT 9
/* DDR_EOR register */
#define DDR_EOR_RD_REOD_DIS 0x07000000
#define DDR_EOR_WD_REOD_DIS 0x00100000
/* DDR_MD_CNTL */
#define MD_CNTL_MD_EN 0x80000000
#define MD_CNTL_CS_SEL_CS0 0x00000000
#define MD_CNTL_CS_SEL_CS1 0x10000000
#define MD_CNTL_CS_SEL_CS2 0x20000000
#define MD_CNTL_CS_SEL_CS3 0x30000000
#define MD_CNTL_CS_SEL_CS0_CS1 0x40000000
#define MD_CNTL_CS_SEL_CS2_CS3 0x50000000
#define MD_CNTL_MD_SEL_MR 0x00000000
#define MD_CNTL_MD_SEL_EMR 0x01000000
#define MD_CNTL_MD_SEL_EMR2 0x02000000
#define MD_CNTL_MD_SEL_EMR3 0x03000000
#define MD_CNTL_SET_REF 0x00800000
#define MD_CNTL_SET_PRE 0x00400000
#define MD_CNTL_CKE_CNTL_LOW 0x00100000
#define MD_CNTL_CKE_CNTL_HIGH 0x00200000
#define MD_CNTL_WRCW 0x00080000
#define MD_CNTL_MD_VALUE(x) (x & 0x0000FFFF)
#define MD_CNTL_CS_SEL(x) (((x) & 0x7) << 28)
#define MD_CNTL_MD_SEL(x) (((x) & 0xf) << 24)
/* DDR_CDR1 */
#define DDR_CDR1_DHC_EN 0x80000000
#define DDR_CDR1_V0PT9_EN 0x40000000
#define DDR_CDR1_ODT_SHIFT 17
#define DDR_CDR1_ODT_MASK 0x6
#define DDR_CDR2_ODT_MASK 0x1
#define DDR_CDR1_ODT(x) ((x & DDR_CDR1_ODT_MASK) << DDR_CDR1_ODT_SHIFT)
#define DDR_CDR2_ODT(x) (x & DDR_CDR2_ODT_MASK)
#define DDR_CDR2_VREF_OVRD(x) (0x00008080 | ((((x) - 37) & 0x3F) << 8))
#define DDR_CDR2_VREF_TRAIN_EN 0x00000080
#define DDR_CDR2_VREF_RANGE_2 0x00000040
/* DDR ERR_DISABLE */
#define DDR_ERR_DISABLE_APED (1 << 8) /* Address parity error disable */
/* Mode Registers */
#define DDR_MR5_CA_PARITY_LAT_4_CLK 0x1 /* for DDR4-1600/1866/2133 */
#define DDR_MR5_CA_PARITY_LAT_5_CLK 0x2 /* for DDR4-2400 */
/* DEBUG_26 register */
#define DDR_CAS_TO_PRE_SUB_MASK 0x0000f000 /* CAS to preamble subtract value */
#define DDR_CAS_TO_PRE_SUB_SHIFT 12
/* DEBUG_29 register */
#define DDR_TX_BD_DIS (1 << 10) /* Transmit Bit Deskew Disable */
static inline int is_ddr1(const memctl_options_t *popts)
{
return IS_ENABLED(CONFIG_DDR_FSL_DDR1) &&
popts->ddrtype == SDRAM_TYPE_DDR1;
}
static inline int is_ddr2(const memctl_options_t *popts)
{
return IS_ENABLED(CONFIG_DDR_FSL_DDR2) &&
popts->ddrtype == SDRAM_TYPE_DDR2;
}
static inline int is_ddr3(const memctl_options_t *popts)
{
return IS_ENABLED(CONFIG_DDR_FSL_DDR3) &&
popts->ddrtype == SDRAM_TYPE_DDR3;
}
static inline int is_ddr4(const memctl_options_t *popts)
{
return IS_ENABLED(CONFIG_DDR_FSL_DDR4) &&
popts->ddrtype == SDRAM_TYPE_DDR4;
}
static inline int is_ddr3_4(const memctl_options_t *popts)
{
return is_ddr3(popts) || is_ddr4(popts);
}
struct fsl_ddr_info;
phys_size_t fsl_ddr_sdram(struct fsl_ddr_info *pinfo);
u32 fsl_ddr_get_intl3r(void);
void board_mem_sleep_setup(void);
static inline bool is_warm_boot(void)
{
return false;
}
int fsl_dp_resume(void);
struct fsl_ddr_controller;
u32 fsl_ddr_get_version(struct fsl_ddr_controller *c);
unsigned int ddr1_compute_dimm_parameters(struct fsl_ddr_controller *c,
const struct ddr1_spd_eeprom *spd,
struct dimm_params *pdimm);
unsigned int ddr2_compute_dimm_parameters(struct fsl_ddr_controller *c,
const struct ddr2_spd_eeprom *spd,
struct dimm_params *pdimm);
unsigned int ddr3_compute_dimm_parameters(struct fsl_ddr_controller *c,
const struct ddr3_spd_eeprom *spd,
struct dimm_params *pdimm);
unsigned int ddr4_compute_dimm_parameters(struct fsl_ddr_controller *c,
const struct ddr4_spd_eeprom *spd,
struct dimm_params *pdimm);
void fsl_ddr_set_intl3r(const unsigned int granule_size);
unsigned int compute_fsl_memctl_config_regs(struct fsl_ddr_controller *c);
unsigned int compute_lowest_common_dimm_parameters(struct fsl_ddr_controller *c);
unsigned int populate_memctl_options(struct fsl_ddr_controller *c);
void check_interleaving_options(struct fsl_ddr_info *pinfo);
unsigned int mclk_to_picos(struct fsl_ddr_controller *c, unsigned int mclk);
unsigned int get_memory_clk_period_ps(struct fsl_ddr_controller *c);
unsigned int picos_to_mclk(struct fsl_ddr_controller *c, unsigned int picos);
void fsl_ddr_set_memctl_regs(struct fsl_ddr_controller *c, int step);
void erratum_a009942_check_cpo(void);
#endif
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