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/*
* UniPhier DDR PHY registers
*
* Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef ARCH_DDRPHY_REGS_H
#define ARCH_DDRPHY_REGS_H
#include <linux/bitops.h>
#include <linux/compiler.h>
#include <linux/types.h>
#ifndef __ASSEMBLY__
struct ddrphy {
u32 ridr; /* Revision Identification Register */
u32 pir; /* PHY Initialixation Register */
u32 pgcr[2]; /* PHY General Configuration Register */
u32 pgsr[2]; /* PHY General Status Register */
u32 pllcr; /* PLL Control Register */
u32 ptr[5]; /* PHY Timing Register */
u32 acmdlr; /* AC Master Delay Line Register */
u32 acbdlr; /* AC Bit Delay Line Register */
u32 aciocr; /* AC I/O Configuration Register */
u32 dxccr; /* DATX8 Common Configuration Register */
u32 dsgcr; /* DDR System General Configuration Register */
u32 dcr; /* DRAM Configuration Register */
u32 dtpr[3]; /* DRAM Timing Parameters Register */
u32 mr0; /* Mode Register 0 */
u32 mr1; /* Mode Register 1 */
u32 mr2; /* Mode Register 2 */
u32 mr3; /* Mode Register 3 */
u32 odtcr; /* ODT Configuration Register */
u32 dtcr; /* Data Training Configuration Register */
u32 dtar[4]; /* Data Training Address Register */
u32 dtdr[2]; /* Data Training Data Register */
u32 dtedr[2]; /* Data Training Eye Data Register */
u32 pgcr2; /* PHY General Configuration Register 2 */
u32 rsv0[8]; /* Reserved */
u32 rdimmgcr[2]; /* RDIMM General Configuration Register */
u32 rdimmcr0[2]; /* RDIMM Control Register */
u32 dcuar; /* DCU Address Register */
u32 dcudr; /* DCU Data Register */
u32 dcurr; /* DCU Run Register */
u32 dculr; /* DCU Loop Register */
u32 dcugcr; /* DCU General Configuration Register */
u32 dcutpr; /* DCU Timing Parameters Register */
u32 dcusr[2]; /* DCU Status Register */
u32 rsv1[8]; /* Reserved */
u32 bistrr; /* BIST Run Register */
u32 bistwcr; /* BIST Word Count Register */
u32 bistmskr[3]; /* BIST Mask Register */
u32 bistlsr; /* BIST LFSR Sed Register */
u32 bistar[3]; /* BIST Address Register */
u32 bistudpr; /* BIST User Data Pattern Register */
u32 bistgsr; /* BIST General Status Register */
u32 bistwer; /* BIST Word Error Register */
u32 bistber[4]; /* BIST Bit Error Register */
u32 bistwcsr; /* BIST Word Count Status Register */
u32 bistfwr[3]; /* BIST Fail Word Register */
u32 rsv2[10]; /* Reserved */
u32 gpr[2]; /* General Purpose Register */
struct ddrphy_zq { /* ZQ */
u32 cr[2]; /* Impedance Control Register */
u32 sr[2]; /* Impedance Status Register */
} zq[4];
struct ddrphy_datx8 { /* DATX8 */
u32 gcr; /* General Configuration Register */
u32 gsr[2]; /* General Status Register */
u32 bdlr[5]; /* Bit Delay Line Register */
u32 lcdlr[3]; /* Local Calibrated Delay Line Register */
u32 mdlr; /* Master Delay Line Register */
u32 gtr; /* General Timing Register */
u32 gsr2; /* General Status Register 2 */
u32 rsv[2]; /* Reserved */
} dx[9];
};
#endif /* __ASSEMBLY__ */
#define PIR_INIT BIT(0) /* Initialization Trigger */
#define PIR_ZCAL BIT(1) /* Impedance Calibration */
#define PIR_PLLINIT BIT(4) /* PLL Initialization */
#define PIR_DCAL BIT(5) /* DDL Calibration */
#define PIR_PHYRST BIT(6) /* PHY Reset */
#define PIR_DRAMRST BIT(7) /* DRAM Reset */
#define PIR_DRAMINIT BIT(8) /* DRAM Initialization */
#define PIR_WL BIT(9) /* Write Leveling */
#define PIR_QSGATE BIT(10) /* Read DQS Gate Training */
#define PIR_WLADJ BIT(11) /* Write Leveling Adjust */
#define PIR_RDDSKW BIT(12) /* Read Data Bit Deskew */
#define PIR_WRDSKW BIT(13) /* Write Data Bit Deskew */
#define PIR_RDEYE BIT(14) /* Read Data Eye Training */
#define PIR_WREYE BIT(15) /* Write Data Eye Training */
#define PIR_LOCKBYP BIT(28) /* PLL Lock Bypass */
#define PIR_DCALBYP BIT(29) /* DDL Calibration Bypass */
#define PIR_ZCALBYP BIT(30) /* Impedance Calib Bypass */
#define PIR_INITBYP BIT(31) /* Initialization Bypass */
#define PGSR0_IDONE BIT(0) /* Initialization Done */
#define PGSR0_PLDONE BIT(1) /* PLL Lock Done */
#define PGSR0_DCDONE BIT(2) /* DDL Calibration Done */
#define PGSR0_ZCDONE BIT(3) /* Impedance Calibration Done */
#define PGSR0_DIDONE BIT(4) /* DRAM Initialization Done */
#define PGSR0_WLDONE BIT(5) /* Write Leveling Done */
#define PGSR0_QSGDONE BIT(6) /* DQS Gate Training Done */
#define PGSR0_WLADONE BIT(7) /* Write Leveling Adjust Done */
#define PGSR0_RDDONE BIT(8) /* Read Bit Deskew Done */
#define PGSR0_WDDONE BIT(9) /* Write Bit Deskew Done */
#define PGSR0_REDONE BIT(10) /* Read Eye Training Done */
#define PGSR0_WEDONE BIT(11) /* Write Eye Training Done */
#define PGSR0_IERR BIT(16) /* Initialization Error */
#define PGSR0_PLERR BIT(17) /* PLL Lock Error */
#define PGSR0_DCERR BIT(18) /* DDL Calibration Error */
#define PGSR0_ZCERR BIT(19) /* Impedance Calib Error */
#define PGSR0_DIERR BIT(20) /* DRAM Initialization Error */
#define PGSR0_WLERR BIT(21) /* Write Leveling Error */
#define PGSR0_QSGERR BIT(22) /* DQS Gate Training Error */
#define PGSR0_WLAERR BIT(23) /* Write Leveling Adj Error */
#define PGSR0_RDERR BIT(24) /* Read Bit Deskew Error */
#define PGSR0_WDERR BIT(25) /* Write Bit Deskew Error */
#define PGSR0_REERR BIT(26) /* Read Eye Training Error */
#define PGSR0_WEERR BIT(27) /* Write Eye Training Error */
#define PGSR0_DTERR_SHIFT 28 /* Data Training Error Status*/
#define PGSR0_DTERR (7 << (PGSR0_DTERR_SHIFT))
#define PGSR0_APLOCK BIT(31) /* AC PLL Lock */
#define DXCCR_DQSRES_OPEN (0 << 5)
#define DXCCR_DQSRES_688_OHM (1 << 5)
#define DXCCR_DQSRES_611_OHM (2 << 5)
#define DXCCR_DQSRES_550_OHM (3 << 5)
#define DXCCR_DQSRES_500_OHM (4 << 5)
#define DXCCR_DQSRES_458_OHM (5 << 5)
#define DXCCR_DQSRES_393_OHM (6 << 5)
#define DXCCR_DQSRES_344_OHM (7 << 5)
#define DXCCR_DQSNRES_OPEN (0 << 9)
#define DXCCR_DQSNRES_688_OHM (1 << 9)
#define DXCCR_DQSNRES_611_OHM (2 << 9)
#define DXCCR_DQSNRES_550_OHM (3 << 9)
#define DXCCR_DQSNRES_500_OHM (4 << 9)
#define DXCCR_DQSNRES_458_OHM (5 << 9)
#define DXCCR_DQSNRES_393_OHM (6 << 9)
#define DXCCR_DQSNRES_344_OHM (7 << 9)
#define DTCR_DTRANK_SHIFT 4 /* Data Training Rank */
#define DTCR_DTRANK_MASK (0x3 << (DTCR_DTRANK_SHIFT))
#define DTCR_DTMPR BIT(6) /* Data Training using MPR */
#define DTCR_RANKEN_SHIFT 24 /* Rank Enable */
#define DTCR_RANKEN_MASK (0xf << (DTCR_RANKEN_SHIFT))
#define DXGCR_WLRKEN_SHIFT 26 /* Write Level Rank Enable */
#define DXGCR_WLRKEN_MASK (0xf << (DXGCR_WLRKEN_SHIFT))
/* SoC-specific parameters */
#define NR_DATX8_PER_DDRPHY 2
#ifndef __ASSEMBLY__
int uniphier_ld4_ddrphy_init(struct ddrphy __iomem *phy, int freq,
bool ddr3plus);
void ddrphy_prepare_training(struct ddrphy __iomem *phy, int rank);
int ddrphy_training(struct ddrphy __iomem *phy);
#endif
#endif /* ARCH_DDRPHY_REGS_H */
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