diff options
Diffstat (limited to 'arch/arm/mach-sc5xx/init/dmcinit.c')
| -rw-r--r-- | arch/arm/mach-sc5xx/init/dmcinit.c | 954 |
1 files changed, 954 insertions, 0 deletions
diff --git a/arch/arm/mach-sc5xx/init/dmcinit.c b/arch/arm/mach-sc5xx/init/dmcinit.c new file mode 100644 index 0000000000..e375b5c9df --- /dev/null +++ b/arch/arm/mach-sc5xx/init/dmcinit.c @@ -0,0 +1,954 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright 2022 - Analog Devices, Inc. + * + * Written and/or maintained by Timesys Corporation + * + * Contact: Nathan Barrett-Morrison <nathan.morrison@timesys.com> + * Contact: Greg Malysa <greg.malysa@timesys.com> + */ + +#include <asm/io.h> +#include <asm/arch-adi/sc5xx/sc5xx.h> +#include <linux/types.h> +#include "clkinit.h" +#include "dmcinit.h" + +#define REG_DMC0_BASE 0x31070000 +#define REG_DMC1_BASE 0x31073000 + +#define REG_DMC_CTL 0x0004 // Control Register +#define REG_DMC_STAT 0x0008 // Status Register +#define REG_DMC_CFG 0x0040 // Configuration Register +#define REG_DMC_TR0 0x0044 // Timing 0 Register +#define REG_DMC_TR1 0x0048 // Timing 1 Register +#define REG_DMC_TR2 0x004C // Timing 2 Register +#define REG_DMC_MR 0x0060 // Shadow MR Register (DDR3) +#define REG_DMC_EMR1 0x0064 // Shadow EMR1 Register +#define REG_DMC_EMR2 0x0068 // Shadow EMR2 Register +#define REG_DMC_EMR3 0x006C +#define REG_DMC_DLLCTL 0x0080 // DLL Control Register +#define REG_DMC_DT_CALIB_ADDR 0x0090 // Data Calibration Address Register +#define REG_DMC_CPHY_CTL 0x01C0 // Controller to PHY Interface Register + +/* SC57x && SC58x DMC REGs */ +#define REG_DMC_PHY_CTL0 0x1000 // PHY Control 0 Register +#define REG_DMC_PHY_CTL1 0x1004 // PHY Control 1 Register +#define REG_DMC_PHY_CTL2 0x1008 // PHY Control 2 Register +#define REG_DMC_PHY_CTL3 0x100c // PHY Control 3 Register +#define REG_DMC_PHY_CTL4 0x1010 // PHY Control 4 Register +#define REG_DMC_CAL_PADCTL0 0x1034 // CALIBRATION PAD CTL 0 Register +#define REG_DMC_CAL_PADCTL2 0x103C // CALIBRATION PAD CTL2 Register +/* END */ + +/* SC59x DMC REGs */ +#define REG_DMC_DDR_LANE0_CTL0 0x1000 // Data Lane 0 Control Register 0 +#define REG_DMC_DDR_LANE0_CTL1 0x1004 // Data Lane 0 Control Register 1 +#define REG_DMC_DDR_LANE1_CTL0 0x100C // Data Lane 1 Control Register 0 +#define REG_DMC_DDR_LANE1_CTL1 0x1010 // Data Lane 1 Control Register 1 +#define REG_DMC_DDR_ROOT_CTL 0x1018 // DDR ROOT Module Control Register +#define REG_DMC_DDR_ZQ_CTL0 0x1034 // DDR Calibration Control Register 0 +#define REG_DMC_DDR_ZQ_CTL1 0x1038 // DDR Calibration Control Register 1 +#define REG_DMC_DDR_ZQ_CTL2 0x103C // DDR Calibration Control Register 2 +#define REG_DMC_DDR_CA_CTL 0x1068 // DDR CA Lane Control Register +/* END */ + +#define REG_DMC_DDR_SCRATCH_2 0x1074 +#define REG_DMC_DDR_SCRATCH_3 0x1078 +#define REG_DMC_DDR_SCRATCH_6 0x1084 +#define REG_DMC_DDR_SCRATCH_7 0x1088 + +#define REG_DMC_DDR_SCRATCH_STAT0 0x107C +#define REG_DMC_DDR_SCRATCH_STAT1 0x1080 + +#define DMC0_DATA_CALIB_ADD 0x80000000 +#define DMC1_DATA_CALIB_ADD 0xC0000000 + +#define BITM_DMC_CFG_EXTBANK 0x0000F000 /* External Banks */ +#define ENUM_DMC_CFG_EXTBANK1 0x00000000 /* EXTBANK: 1 External Bank */ +#define BITM_DMC_CFG_SDRSIZE 0x00000F00 /* SDRAM Size */ +#define ENUM_DMC_CFG_SDRSIZE64 0x00000000 /* SDRSIZE: 64M Bit SDRAM (LPDDR Only) */ +#define ENUM_DMC_CFG_SDRSIZE128 0x00000100 /* SDRSIZE: 128M Bit SDRAM (LPDDR Only) */ +#define ENUM_DMC_CFG_SDRSIZE256 0x00000200 /* SDRSIZE: 256M Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE512 0x00000300 /* SDRSIZE: 512M Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE1G 0x00000400 /* SDRSIZE: 1G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE2G 0x00000500 /* SDRSIZE: 2G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE4G 0x00000600 /* SDRSIZE: 4G Bit SDRAM */ +#define ENUM_DMC_CFG_SDRSIZE8G 0x00000700 /* SDRSIZE: 8G Bit SDRAM */ +#define BITM_DMC_CFG_SDRWID 0x000000F0 /* SDRAM Width */ +#define ENUM_DMC_CFG_SDRWID16 0x00000020 /* SDRWID: 16-Bit Wide SDRAM */ +#define BITM_DMC_CFG_IFWID 0x0000000F /* Interface Width */ +#define ENUM_DMC_CFG_IFWID16 0x00000002 /* IFWID: 16-Bit Wide Interface */ + +#define BITM_DMC_CTL_DDR3EN 0x00000001 +#define BITM_DMC_CTL_INIT 0x00000004 +#define BITP_DMC_STAT_INITDONE 2 /* Initialization Done */ +#define BITM_DMC_STAT_INITDONE 0x00000004 + +#define BITP_DMC_CTL_AL_EN 27 +#define BITP_DMC_CTL_ZQCL 25 /* ZQ Calibration Long */ +#define BITP_DMC_CTL_ZQCS 24 /* ZQ Calibration Short */ +#define BITP_DMC_CTL_DLLCAL 13 /* DLL Calibration Start */ +#define BITP_DMC_CTL_PPREF 12 /* Postpone Refresh */ +#define BITP_DMC_CTL_RDTOWR 9 /* Read-to-Write Cycle */ +#define BITP_DMC_CTL_ADDRMODE 8 /* Addressing (Page/Bank) Mode */ +#define BITP_DMC_CTL_RESET 7 /* Reset SDRAM */ +#define BITP_DMC_CTL_PREC 6 /* Precharge */ +#define BITP_DMC_CTL_DPDREQ 5 /* Deep Power Down Request */ +#define BITP_DMC_CTL_PDREQ 4 /* Power Down Request */ +#define BITP_DMC_CTL_SRREQ 3 /* Self Refresh Request */ +#define BITP_DMC_CTL_INIT 2 /* Initialize DRAM Start */ +#define BITP_DMC_CTL_LPDDR 1 /* Low Power DDR Mode */ +#define BITP_DMC_CTL_DDR3EN 0 /* DDR3 Mode */ + +#ifdef CONFIG_TARGET_SC584_EZKIT + #define DMC_PADCTL2_VALUE 0x0078283C +#elif CONFIG_TARGET_SC573_EZKIT + #define DMC_PADCTL2_VALUE 0x00782828 +#elif CONFIG_TARGET_SC589_MINI || CONFIG_TARGET_SC589_EZKIT + #define DMC_PADCTL2_VALUE 0x00783C3C +#elif defined(CONFIG_SC57X) || defined(CONFIG_SC58X) + #error "PADCTL2 not specified for custom board!" +#else + //Newer DMC. Legacy calibration obsolete + #define DMC_PADCTL2_VALUE 0x0 +#endif + +#define DMC_CPHYCTL_VALUE 0x0000001A + +#define BITP_DMC_MR1_QOFF 12 /* Output Buffer Enable */ +#define BITP_DMC_MR1_TDQS 11 /* Termination Data Strobe */ +#define BITP_DMC_MR1_RTT2 9 /* Rtt_nom */ +#define BITP_DMC_MR1_WL 7 /* Write Leveling Enable. */ +#define BITP_DMC_MR1_RTT1 6 /* Rtt_nom */ +#define BITP_DMC_MR1_DIC1 5 /* Output Driver Impedance Control */ +#define BITP_DMC_MR1_AL 3 /* Additive Latency */ +#define BITP_DMC_MR1_RTT0 2 /* Rtt_nom */ +#define BITP_DMC_MR1_DIC0 1 /* Output Driver Impedance control */ +#define BITP_DMC_MR1_DLLEN 0 /* DLL Enable */ + +#define BITP_DMC_MR2_CWL 3 /* CAS write Latency */ + +#define BITP_DMC_TR0_TMRD 28 /* Timing Mode Register Delay */ +#define BITP_DMC_TR0_TRC 20 /* Timing Row Cycle */ +#define BITP_DMC_TR0_TRAS 12 /* Timing Row Active Time */ +#define BITP_DMC_TR0_TRP 8 /* Timing RAS Precharge. */ +#define BITP_DMC_TR0_TWTR 4 /* Timing Write to Read */ +#define BITP_DMC_TR0_TRCD 0 /* Timing RAS to CAS Delay */ + +#define BITP_DMC_TR1_TRRD 28 /* Timing Read-Read Delay */ +#define BITP_DMC_TR1_TRFC 16 /* Timing Refresh-to-Command */ +#define BITP_DMC_TR1_TREF 0 /* Timing Refresh Interval */ + +#define BITP_DMC_TR2_TCKE 20 /* Timing Clock Enable */ +#define BITP_DMC_TR2_TXP 16 /* Timing Exit Powerdown */ +#define BITP_DMC_TR2_TWR 12 /* Timing Write Recovery */ +#define BITP_DMC_TR2_TRTP 8 /* Timing Read-to-Precharge */ +#define BITP_DMC_TR2_TFAW 0 /* Timing Four-Activated-Window */ + +#define BITP_DMC_MR_PD 12 /* Active Powerdown Mode */ +#define BITP_DMC_MR_WRRECOV 9 /* Write Recovery */ +#define BITP_DMC_MR_DLLRST 8 /* DLL Reset */ +#define BITP_DMC_MR_CL 4 /* CAS Latency */ +#define BITP_DMC_MR_CL0 2 /* CAS Latency */ +#define BITP_DMC_MR_BLEN 0 /* Burst Length */ + +#define BITP_DMC_DLLCTL_DATACYC 8 /* Data Cycles */ +#define BITP_DMC_DLLCTL_DLLCALRDCNT 0 /* DLL Calibration RD Count */ + +#define BITM_DMC_DLLCTL_DATACYC 0x00000F00 /* Data Cycles */ +#define BITM_DMC_DLLCTL_DLLCALRDCNT 0x000000FF /* DLL Calib RD Count */ + +#define BITP_DMC_STAT_PHYRDPHASE 20 /* PHY Read Phase */ + +#define BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT 0x08000000 /* Rst Data Pads */ +#define BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT 0x08000000 /* Rst Data Pads */ +#define BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE 0x00000002 /* Compute Dcycle */ +#define BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE 0x00000002 /* Compute Dcycle */ +#define BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL 0x00000100 /* Rst Lane DLL */ +#define BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL 0x00000100 /* Rst Lane DLL */ +#define BITP_DMC_DDR_ROOT_CTL_PIPE_OFSTDCYCLE 10 /* Pipeline offset for PHYC_DATACYCLE */ +#define BITM_DMC_DDR_ROOT_CTL_SW_REFRESH 0x00002000 /* Refresh Lane DLL Code */ +#define BITM_DMC_DDR_CA_CTL_SW_REFRESH 0x00004000 /* Refresh Lane DLL Code */ + +#define BITP_DMC_CTL_RL_DQS 26 /* RL_DQS */ +#define BITM_DMC_CTL_RL_DQS 0x04000000 /* RL_DQS */ +#define BITP_DMC_EMR3_MPR 2 /* Multi Purpose Read Enable (Read Leveling)*/ +#define BITM_DMC_EMR3_MPR 0x00000004 /* Multi Purpose Read Enable (Read Leveling)*/ +#define BITM_DMC_MR1_WL 0x00000080 /* Write Leveling Enable.*/ +#define BITM_DMC_STAT_PHYRDPHASE 0x00F00000 /* PHY Read Phase */ + +#define BITP_DMC_DDR_LANE0_CTL1_BYPCODE 10 +#define BITM_DMC_DDR_LANE0_CTL1_BYPCODE 0x00007C00 +#define BITP_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN 15 +#define BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN 0x00008000 + +#define DMC_ZQCTL0_VALUE 0x00785A64 +#define DMC_ZQCTL1_VALUE 0 +#define DMC_ZQCTL2_VALUE 0x70000000 + +#define DMC_TRIG_CALIB 0 +#define DMC_OFSTDCYCLE 2 + +#define BITP_DMC_CAL_PADCTL0_RTTCALEN 31 /* RTT Calibration Enable */ +#define BITP_DMC_CAL_PADCTL0_PDCALEN 30 /* PULLDOWN Calib Enable */ +#define BITP_DMC_CAL_PADCTL0_PUCALEN 29 /* PULLUP Calib Enable */ +#define BITP_DMC_CAL_PADCTL0_CALSTRT 28 /* Start New Calib ( Hardware Cleared) */ +#define BITM_DMC_CAL_PADCTL0_RTTCALEN 0x80000000 /* RTT Calibration Enable */ +#define BITM_DMC_CAL_PADCTL0_PDCALEN 0x40000000 /* PULLDOWN Calib Enable */ +#define BITM_DMC_CAL_PADCTL0_PUCALEN 0x20000000 /* PULLUP Calib Enable */ +#define BITM_DMC_CAL_PADCTL0_CALSTRT 0x10000000 /* Start New Calib ( Hardware Cleared) */ +#define ENUM_DMC_PHY_CTL4_DDR3 0x00000000 /* DDRMODE: DDR3 Mode */ +#define ENUM_DMC_PHY_CTL4_DDR2 0x00000001 /* DDRMODE: DDR2 Mode */ +#define ENUM_DMC_PHY_CTL4_LPDDR 0x00000003 /* DDRMODE: LPDDR Mode */ + +#define BITP_DMC_DDR_ZQ_CTL0_IMPRTT 16 /* Data/DQS ODT */ +#define BITP_DMC_DDR_ZQ_CTL0_IMPWRDQ 8 /* Data/DQS/DM/CLK Drive Strength */ +#define BITP_DMC_DDR_ZQ_CTL0_IMPWRADD 0 /* Address/Command Drive Strength */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPRTT 0x00FF0000 /* Data/DQS ODT */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPWRDQ 0x0000FF00 /* Data/DQS/DM/CLK Drive Strength */ +#define BITM_DMC_DDR_ZQ_CTL0_IMPWRADD 0x000000FF /* Address/Command Drive Strength */ + +#define BITM_DMC_DDR_ROOT_CTL_TRIG_RD_XFER_ALL 0x00200000 /* All Lane Read Status */ + +#if defined(CONFIG_ADI_USE_DDR2) + #define DMC_MR0_VALUE \ + ((DMC_BL / 4 + 1) << BITP_DMC_MR_BLEN) | \ + (DMC_CL << BITP_DMC_MR_CL) | \ + (DMC_WRRECOV << BITP_DMC_MR_WRRECOV) + + #define DMC_MR1_VALUE \ + (DMC_MR1_AL << BITP_DMC_MR1_AL | 0x04) \ + + #define DMC_MR2_VALUE 0 + #define DMC_MR3_VALUE 0 + + #define DMC_CTL_VALUE \ + (DMC_RDTOWR << BITP_DMC_CTL_RDTOWR) | \ + (1 << BITP_DMC_CTL_DLLCAL) | \ + (BITM_DMC_CTL_INIT) +#else + #define DMC_MR0_VALUE \ + (0 << BITP_DMC_MR_BLEN) | \ + (DMC_CL0 << BITP_DMC_MR_CL0) | \ + (DMC_CL123 << BITP_DMC_MR_CL) | \ + (DMC_WRRECOV << BITP_DMC_MR_WRRECOV) | \ + (1 << BITP_DMC_MR_DLLRST) + + #define DMC_MR1_VALUE \ + (DMC_MR1_DLLEN << BITP_DMC_MR1_DLLEN) | \ + (DMC_MR1_DIC0 << BITP_DMC_MR1_DIC0) | \ + (DMC_MR1_RTT0 << BITP_DMC_MR1_RTT0) | \ + (DMC_MR1_AL << BITP_DMC_MR1_AL) | \ + (DMC_MR1_DIC1 << BITP_DMC_MR1_DIC1) | \ + (DMC_MR1_RTT1 << BITP_DMC_MR1_RTT1) | \ + (DMC_MR1_RTT2 << BITP_DMC_MR1_RTT2) | \ + (DMC_MR1_WL << BITP_DMC_MR1_WL) | \ + (DMC_MR1_TDQS << BITP_DMC_MR1_TDQS) | \ + (DMC_MR1_QOFF << BITP_DMC_MR1_QOFF) + + #define DMC_MR2_VALUE \ + ((DMC_WL) << BITP_DMC_MR2_CWL) + + #define DMC_MR3_VALUE \ + ((DMC_WL) << BITP_DMC_MR2_CWL) + + #define DMC_CTL_VALUE \ + (DMC_RDTOWR << BITP_DMC_CTL_RDTOWR) | \ + (BITM_DMC_CTL_INIT) | \ + (BITM_DMC_CTL_DDR3EN) | \ + (DMC_CTL_AL_EN << BITP_DMC_CTL_AL_EN) +#endif + +#define DMC_DLLCTL_VALUE \ + (DMC_DATACYC << BITP_DMC_DLLCTL_DATACYC) | \ + (DMC_DLLCALRDCNT << BITP_DMC_DLLCTL_DLLCALRDCNT) + +#define DMC_CFG_VALUE \ + ENUM_DMC_CFG_IFWID16 | \ + ENUM_DMC_CFG_SDRWID16 | \ + SDR_CHIP_SIZE | \ + ENUM_DMC_CFG_EXTBANK1 + +#define DMC_TR0_VALUE \ + (DMC_TRCD << BITP_DMC_TR0_TRCD) | \ + (DMC_TWTR << BITP_DMC_TR0_TWTR) | \ + (DMC_TRP << BITP_DMC_TR0_TRP) | \ + (DMC_TRAS << BITP_DMC_TR0_TRAS) | \ + (DMC_TRC << BITP_DMC_TR0_TRC) | \ + (DMC_TMRD << BITP_DMC_TR0_TMRD) + +#define DMC_TR1_VALUE \ + (DMC_TREF << BITP_DMC_TR1_TREF) | \ + (DMC_TRFC << BITP_DMC_TR1_TRFC) | \ + (DMC_TRRD << BITP_DMC_TR1_TRRD) + +#define DMC_TR2_VALUE \ + (DMC_TFAW << BITP_DMC_TR2_TFAW) | \ + (DMC_TRTP << BITP_DMC_TR2_TRTP) | \ + (DMC_TWR << BITP_DMC_TR2_TWR) | \ + (DMC_TXP << BITP_DMC_TR2_TXP) | \ + (DMC_TCKE << BITP_DMC_TR2_TCKE) + +enum DDR_MODE { + DDR3_MODE, + DDR2_MODE, + LPDDR_MODE, +}; + +enum CALIBRATION_MODE { + CALIBRATION_LEGACY, + CALIBRATION_METHOD1, + CALIBRATION_METHOD2, +}; + +static struct dmc_param { + phys_addr_t reg; + u32 ddr_mode; + u32 padctl2_value; + u32 dmc_cphyctl_value; + u32 dmc_cfg_value; + u32 dmc_dllctl_value; + u32 dmc_ctl_value; + u32 dmc_tr0_value; + u32 dmc_tr1_value; + u32 dmc_tr2_value; + u32 dmc_mr0_value; + u32 dmc_mr1_value; + u32 dmc_mr2_value; + u32 dmc_mr3_value; + u32 dmc_zqctl0_value; + u32 dmc_zqctl1_value; + u32 dmc_zqctl2_value; + u32 dmc_data_calib_add_value; + bool phy_init_required; + bool anomaly_20000037_applicable; + enum CALIBRATION_MODE calib_mode; +} dmc; + +#ifdef CONFIG_SC59X_64 +#define DQS_DEFAULT_DELAY 3ul + +#define DELAYTRIM 1 +#define LANE0_DQS_DELAY 1 +#define LANE1_DQS_DELAY 1 + +#define CLKDIR 0ul + +#define DQSTRIM 0 +#define DQSCODE 0ul + +#define CLKTRIM 0 +#define CLKCODE 0ul +#endif + +static inline void calibration_legacy(void) +{ + u32 temp; + + /* 1. Set DDR mode to DDR3/DDR2/LPDDR in DMCx_PHY_CTL4 register */ + if (dmc.ddr_mode == DDR3_MODE) + writel(ENUM_DMC_PHY_CTL4_DDR3, dmc.reg + REG_DMC_PHY_CTL4); + else if (dmc.ddr_mode == DDR2_MODE) + writel(ENUM_DMC_PHY_CTL4_DDR2, dmc.reg + REG_DMC_PHY_CTL4); + else if (dmc.ddr_mode == LPDDR_MODE) + writel(ENUM_DMC_PHY_CTL4_LPDDR, dmc.reg + REG_DMC_PHY_CTL4); + + /* + * 2. Make sure that the bits 6, 7, 25, and 27 of the DMC_PHY_ + * CTL3 register are set + */ + writel(0x0A0000C0, dmc.reg + REG_DMC_PHY_CTL3); + + /* + * 3. For DDR2/DDR3 mode, make sure that the bits 0, 1, 2, 3 of + * the DMC_PHY_CTL0 register and the bits 26, 27, 28, 29, 30, 31 + * of the DMC_PHY_CTL2 are set. + */ + if (dmc.ddr_mode == DDR3_MODE || + dmc.ddr_mode == DDR2_MODE) { + writel(0XFC000000, dmc.reg + REG_DMC_PHY_CTL2); + writel(0x0000000f, dmc.reg + REG_DMC_PHY_CTL0); + } + + writel(0x00000000, dmc.reg + REG_DMC_PHY_CTL1); + + /* 4. For DDR3 mode, set bit 1 and configure bits [5:2] of the + * DMC_CPHY_CTL register with WL=CWL+AL in DCLK cycles. + */ + if (dmc.ddr_mode == DDR3_MODE) + writel(dmc.dmc_cphyctl_value, dmc.reg + REG_DMC_CPHY_CTL); + /* 5. Perform On Die Termination(ODT) & Driver Impedance Calibration */ + if (dmc.ddr_mode == LPDDR_MODE) { + /* Bypass processor ODT */ + writel(0x80000, dmc.reg + REG_DMC_PHY_CTL1); + } else { + /* Set bits RTTCALEN, PDCALEN, PUCALEN of register */ + temp = BITM_DMC_CAL_PADCTL0_RTTCALEN | + BITM_DMC_CAL_PADCTL0_PDCALEN | + BITM_DMC_CAL_PADCTL0_PUCALEN; + writel(temp, dmc.reg + REG_DMC_CAL_PADCTL0); + /* Configure ODT and drive impedance values in the + * DMCx_CAL_PADCTL2 register + */ + writel(dmc.padctl2_value, dmc.reg + REG_DMC_CAL_PADCTL2); + /* start calibration */ + temp |= BITM_DMC_CAL_PADCTL0_CALSTRT; + writel(temp, dmc.reg + REG_DMC_CAL_PADCTL0); + /* Wait for PAD calibration to complete - 300 DCLK cycle. + * Worst case: CCLK=450 MHz, DCLK=125 MHz + */ + dmcdelay(300); + } +} + +static inline void calibration_method1(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + writel(dmc.dmc_zqctl0_value, dmc.reg + REG_DMC_DDR_ZQ_CTL0); + writel(dmc.dmc_zqctl1_value, dmc.reg + REG_DMC_DDR_ZQ_CTL1); + writel(dmc.dmc_zqctl2_value, dmc.reg + REG_DMC_DDR_ZQ_CTL2); + + /* Generate the trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x00010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(8000u); + + /* The [31:26] bits may change if pad ring changes */ + writel(0x0C000001ul | DMC_TRIG_CALIB, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(8000u); + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif +} + +static inline void calibration_method2(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 stat_value = 0x0u; + u32 drv_pu, drv_pd, odt_pu, odt_pd; + u32 ro_dt, clk_dqs_drv_impedance; + u32 temp; + + /* Reset trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* Writing internal registers in calib pad to zero. Calib mode set + * to 1 [26], trig M1 S1 write [16], this enables usage of scratch + * registers instead of ZQCTL registers + */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + /* TRIGGER FOR M2-S2 WRITE -> slave id 31:26 trig m2,s2 write + * bit 1->1 slave1 address is 4 + */ + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + /* reset Trigger */ + writel(0x0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + + /* write to slave 1, make the power down bit high */ + writel(0x1ul << 12, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + dmcdelay(2500u); + + /* Calib mode set to 1 [26], trig M1 S1 write [16] */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0, dmc.reg + REG_DMC_DDR_SCRATCH_3); + + /* for slave 0 */ + writel(dmc.dmc_zqctl0_value, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* Calib mode set to 1 [26], trig M1 S1 write [16] */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + writel(0x0C000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + + /* writing to slave 1 + * calstrt is 0, but other programming is done + * + * make power down LOW again, to kickstart BIAS circuit + */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x30000000ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + + /* write to ca_ctl lane, calib mode set to 1 [26], + * trig M1 S1 write [16] + */ + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + + /* copies data to lane controller slave + * TRIGGER FOR M2-S2 WRITE -> slave id 31:26 + * trig m2,s2 write bit 1->1 + * slave1 address is 4 + */ + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + + /* reset Trigger */ + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0x0ul, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0ul, dmc.reg + REG_DMC_DDR_SCRATCH_3); + writel(0x50000000ul, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x04010000ul, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x10000002ul, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x0C000004u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(BITM_DMC_DDR_ROOT_CTL_TRIG_RD_XFER_ALL, + dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + // calculate ODT PU and PD values + stat_value = ((readl(dmc.reg + REG_DMC_DDR_SCRATCH_7) & 0x0000FFFFu) << + 16); + stat_value |= ((readl(dmc.reg + REG_DMC_DDR_SCRATCH_6) & 0xFFFF0000u) >> + 16); + clk_dqs_drv_impedance = ((dmc.dmc_zqctl0_value) & + BITM_DMC_DDR_ZQ_CTL0_IMPWRDQ) >> BITP_DMC_DDR_ZQ_CTL0_IMPWRDQ; + ro_dt = ((dmc.dmc_zqctl0_value) & BITM_DMC_DDR_ZQ_CTL0_IMPRTT) >> + BITP_DMC_DDR_ZQ_CTL0_IMPRTT; + drv_pu = stat_value & 0x0000003Fu; + drv_pd = (stat_value >> 12) & 0x0000003Fu; + odt_pu = (drv_pu * clk_dqs_drv_impedance) / ro_dt; + odt_pd = (drv_pd * clk_dqs_drv_impedance) / ro_dt; + temp = ((1uL << 24) | + ((drv_pd & 0x0000003Fu)) | + ((odt_pd & 0x0000003Fu) << 6) | + ((drv_pu & 0x0000003Fu) << 12) | + ((odt_pu & 0x0000003Fu) << 18)); + temp |= readl(dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(temp, dmc.reg + REG_DMC_DDR_SCRATCH_2); + writel(0x0C010000u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x08000002u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + writel(0x04010000u, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x80000002u, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(2500u); + writel(0u, dmc.reg + REG_DMC_DDR_CA_CTL); + writel(0u, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif +} + +static inline void adi_dmc_lane_reset(bool reset, uint32_t dmc_no) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 temp; + phys_addr_t base = (dmc_no == 0) ? REG_DMC0_BASE : REG_DMC1_BASE; + phys_addr_t ln0 = base + REG_DMC_DDR_LANE0_CTL0; + phys_addr_t ln1 = base + REG_DMC_DDR_LANE1_CTL0; + + if (reset) { + temp = readl(ln0); + temp |= BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL; + writel(temp, ln0); + + temp = readl(ln1); + temp |= BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL; + writel(temp, ln1); + } else { + temp = readl(ln0); + temp &= ~BITM_DMC_DDR_LANE0_CTL0_CB_RSTDLL; + writel(temp, ln0); + + temp = readl(ln1); + temp &= ~BITM_DMC_DDR_LANE1_CTL0_CB_RSTDLL; + writel(temp, ln1); + } + dmcdelay(9000u); +#endif +} + +void adi_dmc_reset_lanes(bool reset) +{ + if (!IS_ENABLED(CONFIG_ADI_USE_DDR2)) { + if (IS_ENABLED(CONFIG_SC59X) || IS_ENABLED(CONFIG_SC59X_64)) { + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + adi_dmc_lane_reset(reset, 0); + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + adi_dmc_lane_reset(reset, 1); + } + else { + u32 temp = reset ? 0x800 : 0x0; + + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + writel(temp, REG_DMC0_BASE + REG_DMC_PHY_CTL0); + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + writel(temp, REG_DMC1_BASE + REG_DMC_PHY_CTL0); + } + } +} + +static inline void dmc_controller_init(void) +{ +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + u32 phyphase, rd_cnt, t_EMR1, t_EMR3, t_CTL, data_cyc, temp; +#endif + + /* 1. Program the DMC controller registers: DMCx_CFG, DMCx_TR0, + * DMCx_TR1, DMCx_TR2, DMCx_MR(DDR2/LPDDR)/DMCx_MR0(DDR3), + * DMCx_EMR1(DDR2)/DMCx_MR1(DDR3), + * DMCx_EMR2(DDR2)/DMCx_EMR(LPDDR)/DMCx_MR2(DDR3) + */ + writel(dmc.dmc_cfg_value, dmc.reg + REG_DMC_CFG); + writel(dmc.dmc_tr0_value, dmc.reg + REG_DMC_TR0); + writel(dmc.dmc_tr1_value, dmc.reg + REG_DMC_TR1); + writel(dmc.dmc_tr2_value, dmc.reg + REG_DMC_TR2); + writel(dmc.dmc_mr0_value, dmc.reg + REG_DMC_MR); + writel(dmc.dmc_mr1_value, dmc.reg + REG_DMC_EMR1); + writel(dmc.dmc_mr2_value, dmc.reg + REG_DMC_EMR2); + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + writel(dmc.dmc_mr3_value, dmc.reg + REG_DMC_EMR3); + writel(dmc.dmc_dllctl_value, dmc.reg + REG_DMC_DLLCTL); + dmcdelay(2000u); + + temp = readl(dmc.reg + REG_DMC_DDR_CA_CTL); + temp |= BITM_DMC_DDR_CA_CTL_SW_REFRESH; + writel(temp, dmc.reg + REG_DMC_DDR_CA_CTL); + dmcdelay(5u); + + temp = readl(dmc.reg + REG_DMC_DDR_ROOT_CTL); + temp |= BITM_DMC_DDR_ROOT_CTL_SW_REFRESH | + (DMC_OFSTDCYCLE << BITP_DMC_DDR_ROOT_CTL_PIPE_OFSTDCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_ROOT_CTL); +#endif + + /* 2. Make sure that the REG_DMC_DT_CALIB_ADDR register is programmed + * to an unused DMC location corresponding to a burst of 16 bytes + * (by default it is the starting address of the DMC address range). + */ +#ifndef CONFIG_SC59X + writel(dmc.dmc_data_calib_add_value, dmc.reg + REG_DMC_DT_CALIB_ADDR); +#endif + /* 3. Program the DMCx_CTL register with INIT bit set to start + * the DMC initialization sequence + */ + writel(dmc.dmc_ctl_value, dmc.reg + REG_DMC_CTL); + /* 4. Wait for the DMC initialization to complete by polling + * DMCx_STAT.INITDONE bit. + */ + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmcdelay(722000u); + + /* Add necessary delay depending on the configuration */ + t_EMR1 = (dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL; + + dmcdelay(600u); + if (t_EMR1 != 0u) + while ((readl(dmc.reg + REG_DMC_EMR1) & BITM_DMC_MR1_WL) != 0) + ; + + t_EMR3 = (dmc.dmc_mr3_value & BITM_DMC_EMR3_MPR) >> + BITP_DMC_EMR3_MPR; + dmcdelay(2000u); + if (t_EMR3 != 0u) + while ((readl(dmc.reg + REG_DMC_EMR3) & BITM_DMC_EMR3_MPR) != 0) + ; + + t_CTL = (dmc.dmc_ctl_value & BITM_DMC_CTL_RL_DQS) >> BITP_DMC_CTL_RL_DQS; + dmcdelay(600u); + if (t_CTL != 0u) + while ((readl(dmc.reg + REG_DMC_CTL) & BITM_DMC_CTL_RL_DQS) != 0) + ; +#endif + + /* check if DMC initialization finished*/ + while ((readl(dmc.reg + REG_DMC_STAT) & BITM_DMC_STAT_INITDONE) == 0) + ; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + /* toggle DCYCLE */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + dmcdelay(10u); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp &= (~BITM_DMC_DDR_LANE0_CTL1_COMP_DCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp &= (~BITM_DMC_DDR_LANE1_CTL1_COMP_DCYCLE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + /* toggle RSTDAT */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp |= BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp &= (~BITM_DMC_DDR_LANE0_CTL0_CB_RSTDAT); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp |= BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp &= (~BITM_DMC_DDR_LANE1_CTL0_CB_RSTDAT); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); + + dmcdelay(2500u); + + /* Program phyphase*/ + phyphase = (readl(dmc.reg + REG_DMC_STAT) & + BITM_DMC_STAT_PHYRDPHASE) >> BITP_DMC_STAT_PHYRDPHASE; + data_cyc = (phyphase << BITP_DMC_DLLCTL_DATACYC) & + BITM_DMC_DLLCTL_DATACYC; + rd_cnt = dmc.dmc_dllctl_value; + rd_cnt <<= BITP_DMC_DLLCTL_DLLCALRDCNT; + rd_cnt &= BITM_DMC_DLLCTL_DLLCALRDCNT; + writel(rd_cnt | data_cyc, dmc.reg + REG_DMC_DLLCTL); + writel((dmc.dmc_ctl_value & (~BITM_DMC_CTL_INIT) & + (~BITM_DMC_CTL_RL_DQS)), dmc.reg + REG_DMC_CTL); + +#if DELAYTRIM + /* DQS delay trim*/ + u32 stat_value, WL_code_LDQS, WL_code_UDQS; + + /* For LDQS */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1) | (0x000000D0); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + dmcdelay(2500u); + writel(0x00400000, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x0, dmc.reg + REG_DMC_DDR_ROOT_CTL); + stat_value = (readl(dmc.reg + REG_DMC_DDR_SCRATCH_STAT0) & + (0xFFFF0000)) >> 16; + WL_code_LDQS = (stat_value) & (0x0000001F); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp &= ~(BITM_DMC_DDR_LANE0_CTL1_BYPCODE | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + + /* If write leveling is enabled */ + if ((dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL) { + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= (((WL_code_LDQS + LANE0_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + } else { + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL1); + temp |= (((DQS_DEFAULT_DELAY + LANE0_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL1); + } + dmcdelay(2500u); + + /* For UDQS */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1) | (0x000000D0); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + dmcdelay(2500u); + writel(0x00800000, dmc.reg + REG_DMC_DDR_ROOT_CTL); + dmcdelay(2500u); + writel(0x0, dmc.reg + REG_DMC_DDR_ROOT_CTL); + stat_value = (readl(dmc.reg + REG_DMC_DDR_SCRATCH_STAT1) & + (0xFFFF0000)) >> 16; + WL_code_UDQS = (stat_value) & (0x0000001F); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp &= ~(BITM_DMC_DDR_LANE0_CTL1_BYPCODE | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + + /* If write leveling is enabled */ + if ((dmc.dmc_mr1_value & BITM_DMC_MR1_WL) >> BITP_DMC_MR1_WL) { + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= (((WL_code_UDQS + LANE1_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + } else { + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL1); + temp |= (((DQS_DEFAULT_DELAY + LANE1_DQS_DELAY) << + BITP_DMC_DDR_LANE0_CTL1_BYPCODE) & + BITM_DMC_DDR_LANE0_CTL1_BYPCODE) | + BITM_DMC_DDR_LANE0_CTL1_BYPDELCHAINEN; + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL1); + } + dmcdelay(2500u); +#endif + +#else + /* 5. Program the DMCx_CTL.DLLCTL register with 0x948 value + * (DATACYC=9, DLLCALRDCNT=72). + */ + writel(0x00000948, dmc.reg + REG_DMC_DLLCTL); +#endif + + /* 6. Workaround for anomaly#20000037 */ + if (dmc.anomaly_20000037_applicable) { + /* Perform dummy read to any DMC location */ + readl(0x80000000); + + writel(readl(dmc.reg + REG_DMC_PHY_CTL0) | 0x1000, + dmc.reg + REG_DMC_PHY_CTL0); + /* Clear DMCx_PHY_CTL0.RESETDAT bit */ + writel(readl(dmc.reg + REG_DMC_PHY_CTL0) & (~0x1000), + dmc.reg + REG_DMC_PHY_CTL0); + } +} + +static inline void dmc_init(void) +{ + /* PHY Calibration+Initialization */ + if (!dmc.phy_init_required) + goto out; + + switch (dmc.calib_mode) { + case CALIBRATION_LEGACY: + calibration_legacy(); + break; + case CALIBRATION_METHOD1: + calibration_method1(); + break; + case CALIBRATION_METHOD2: + calibration_method2(); + break; + } + +#if DQSTRIM + /* DQS duty trim */ + temp = readl(dmc.reg + REG_DMC_DDR_LANE0_CTL0); + temp |= ((DQSCODE) << BITP_DMC_DDR_LANE0_CTL0_BYPENB) & + (BITM_DMC_DDR_LANE1_CTL0_BYPENB | + BITM_DMC_DDR_LANE0_CTL0_BYPSELP | + BITM_DMC_DDR_LANE0_CTL0_BYPCODE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE0_CTL0); + + temp = readl(dmc.reg + REG_DMC_DDR_LANE1_CTL0); + temp |= ((DQSCODE) << BITP_DMC_DDR_LANE1_CTL0_BYPENB) & + (BITM_DMC_DDR_LANE1_CTL1_BYPCODE | + BITM_DMC_DDR_LANE1_CTL0_BYPSELP | + BITM_DMC_DDR_LANE1_CTL0_BYPCODE); + writel(temp, dmc.reg + REG_DMC_DDR_LANE1_CTL0); +#endif + +#if CLKTRIM + /* Clock duty trim */ + temp = readl(dmc.reg + REG_DMC_DDR_CA_CTL); + temp |= (((CLKCODE << BITP_DMC_DDR_CA_CTL_BYPCODE1) & + BITM_DMC_DDR_CA_CTL_BYPCODE1) | + BITM_DMC_DDR_CA_CTL_BYPENB | + ((CLKDIR << BITP_DMC_DDR_CA_CTL_BYPSELP) & + BITM_DMC_DDR_CA_CTL_BYPSELP)); + writel(temp, dmc.reg + REG_DMC_DDR_CA_CTL); +#endif + +out: + /* Controller Initialization */ + dmc_controller_init(); +} + +static inline void __dmc_config(uint32_t dmc_no) +{ + if (dmc_no == 0) { + dmc.reg = REG_DMC0_BASE; + dmc.dmc_data_calib_add_value = DMC0_DATA_CALIB_ADD; + } else if (dmc_no == 1) { + dmc.reg = REG_DMC1_BASE; + dmc.dmc_data_calib_add_value = DMC1_DATA_CALIB_ADD; + } else { + return; + } + + if (IS_ENABLED(CONFIG_ADI_USE_DDR2)) + dmc.ddr_mode = DDR2_MODE; + else + dmc.ddr_mode = DDR3_MODE; + + dmc.phy_init_required = true; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmc.anomaly_20000037_applicable = false; + dmc.dmc_dllctl_value = DMC_DLLCTL_VALUE; + dmc.calib_mode = CALIBRATION_METHOD2; +#else + dmc.anomaly_20000037_applicable = true; + dmc.calib_mode = CALIBRATION_LEGACY; +#endif + + dmc.dmc_ctl_value = DMC_CTL_VALUE; + dmc.dmc_cfg_value = DMC_CFG_VALUE; + dmc.dmc_tr0_value = DMC_TR0_VALUE; + dmc.dmc_tr1_value = DMC_TR1_VALUE; + dmc.dmc_tr2_value = DMC_TR2_VALUE; + dmc.dmc_mr0_value = DMC_MR0_VALUE; + dmc.dmc_mr1_value = DMC_MR1_VALUE; + dmc.dmc_mr2_value = DMC_MR2_VALUE; + +#if defined(CONFIG_SC59X) || defined(CONFIG_SC59X_64) + dmc.dmc_mr3_value = DMC_MR3_VALUE; + dmc.dmc_zqctl0_value = DMC_ZQCTL0_VALUE; + dmc.dmc_zqctl1_value = DMC_ZQCTL1_VALUE; + dmc.dmc_zqctl2_value = DMC_ZQCTL2_VALUE; +#endif + + dmc.padctl2_value = DMC_PADCTL2_VALUE; + dmc.dmc_cphyctl_value = DMC_CPHYCTL_VALUE; + + /* Initialize DMC now */ + dmc_init(); +} + +void DMC_Config(void) +{ + if (IS_ENABLED(CONFIG_ADI_USE_DMC0)) + __dmc_config(0); + + if (IS_ENABLED(CONFIG_ADI_USE_DMC1)) + __dmc_config(1); +} |