1 /* 2 * (c) 2015 Purna Chandra Mandal <purna.mandal@microchip.com> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 * 6 */ 7 8 #ifndef __MICROCHIP_DDR2_REGS_H 9 #define __MICROCHIP_DDR2_REGS_H 10 11 #include <linux/bitops.h> 12 13 /* DDR2 Controller */ 14 struct ddr2_ctrl_regs { 15 u32 tsel; 16 u32 minlim; 17 u32 reqprd; 18 u32 mincmd; 19 u32 memcon; 20 u32 memcfg0; 21 u32 memcfg1; 22 u32 memcfg2; 23 u32 memcfg3; 24 u32 memcfg4; 25 u32 refcfg; 26 u32 pwrcfg; 27 u32 dlycfg0; 28 u32 dlycfg1; 29 u32 dlycfg2; 30 u32 dlycfg3; 31 u32 odtcfg; 32 u32 xfercfg; 33 u32 cmdissue; 34 u32 odtencfg; 35 u32 memwidth; 36 u32 unused[11]; 37 u32 cmd10[16]; 38 u32 cmd20[16]; 39 }; 40 41 /* Arbiter Config */ 42 #define MIN_LIM_WIDTH 5 43 #define RQST_PERIOD_WIDTH 8 44 #define MIN_CMDACPT_WIDTH 8 45 46 /* Refresh Config */ 47 #define REFCNT_CLK(x) (x) 48 #define REFDLY_CLK(x) ((x) << 16) 49 #define MAX_PEND_REF(x) ((x) << 24) 50 51 /* Power Config */ 52 #define PRECH_PWR_DN_ONLY(x) ((x) << 22) 53 #define SELF_REF_DLY(x) ((x) << 12) 54 #define PWR_DN_DLY(x) ((x) << 4) 55 #define EN_AUTO_SELF_REF(x) ((x) << 3) 56 #define EN_AUTO_PWR_DN(x) ((x) << 2) 57 #define ERR_CORR_EN(x) ((x) << 1) 58 #define ECC_EN(x) (x) 59 60 /* Memory Width */ 61 #define HALF_RATE_MODE BIT(3) 62 63 /* Delay Config */ 64 #define ODTWLEN(x) ((x) << 20) 65 #define ODTRLEN(x) ((x) << 16) 66 #define ODTWDLY(x) ((x) << 12) 67 #define ODTRDLY(x) ((x) << 8) 68 69 /* Xfer Config */ 70 #define BIG_ENDIAN(x) ((x) << 31) 71 #define MAX_BURST(x) ((x) << 24) 72 #define RDATENDLY(x) ((x) << 16) 73 #define NXDATAVDLY(x) ((x) << 4) 74 #define NXTDATRQDLY(x) ((x) << 0) 75 76 /* Host Commands */ 77 #define IDLE_NOP 0x00ffffff 78 #define PRECH_ALL_CMD 0x00fff401 79 #define REF_CMD 0x00fff801 80 #define LOAD_MODE_CMD 0x00fff001 81 #define CKE_LOW 0x00ffeffe 82 83 #define NUM_HOST_CMDS 12 84 85 /* Host CMD Issue */ 86 #define CMD_VALID BIT(4) 87 #define NUMHOSTCMD(x) (x) 88 89 /* Memory Control */ 90 #define INIT_DONE BIT(1) 91 #define INIT_START BIT(0) 92 93 /* Address Control */ 94 #define EN_AUTO_PRECH 0 95 #define SB_PRI 1 96 97 /* DDR2 Phy Register */ 98 struct ddr2_phy_regs { 99 u32 scl_start; 100 u32 unused1[2]; 101 u32 scl_latency; 102 u32 unused2[2]; 103 u32 scl_config_1; 104 u32 scl_config_2; 105 u32 pad_ctrl; 106 u32 dll_recalib; 107 }; 108 109 /* PHY PAD CONTROL */ 110 #define ODT_SEL BIT(0) 111 #define ODT_EN BIT(1) 112 #define DRIVE_SEL(x) ((x) << 2) 113 #define ODT_PULLDOWN(x) ((x) << 4) 114 #define ODT_PULLUP(x) ((x) << 6) 115 #define EXTRA_OEN_CLK(x) ((x) << 8) 116 #define NOEXT_DLL BIT(9) 117 #define DLR_DFT_WRCMD BIT(13) 118 #define HALF_RATE BIT(14) 119 #define DRVSTR_PFET(x) ((x) << 16) 120 #define DRVSTR_NFET(x) ((x) << 20) 121 #define RCVR_EN BIT(28) 122 #define PREAMBLE_DLY(x) ((x) << 29) 123 124 /* PHY DLL RECALIBRATE */ 125 #define RECALIB_CNT(x) ((x) << 8) 126 #define DISABLE_RECALIB(x) ((x) << 26) 127 #define DELAY_START_VAL(x) ((x) << 28) 128 129 /* PHY SCL CONFIG1 */ 130 #define SCL_BURST8 BIT(0) 131 #define SCL_DDR_CONNECTED BIT(1) 132 #define SCL_RCAS_LAT(x) ((x) << 4) 133 #define SCL_ODTCSWW BIT(24) 134 135 /* PHY SCL CONFIG2 */ 136 #define SCL_CSEN BIT(0) 137 #define SCL_WCAS_LAT(x) ((x) << 8) 138 139 /* PHY SCL Latency */ 140 #define SCL_CAPCLKDLY(x) ((x) << 0) 141 #define SCL_DDRCLKDLY(x) ((x) << 4) 142 143 /* PHY SCL START */ 144 #define SCL_START BIT(28) 145 #define SCL_EN BIT(26) 146 #define SCL_LUBPASS (BIT(1) | BIT(0)) 147 148 #endif /* __MICROCHIP_DDR2_REGS_H */ 149