1 /* 2 * (C) Copyright 2009 Faraday Technology 3 * Po-Yu Chuang <ratbert@faraday-tech.com> 4 * 5 * (C) Copyright 2011 Andes Technology Corp 6 * Macpaul Lin <macpaul@andestech.com> 7 * 8 * SPDX-License-Identifier: GPL-2.0+ 9 */ 10 11 /* 12 * FTSDMC021 - SDRAM Controller 13 */ 14 #ifndef __FTSDMC021_H 15 #define __FTSDMC021_H 16 17 #ifndef __ASSEMBLY__ 18 struct ftsdmc021 { 19 unsigned int tp1; /* 0x00 - SDRAM Timing Parameter 1 */ 20 unsigned int tp2; /* 0x04 - SDRAM Timing Parameter 2 */ 21 unsigned int cr1; /* 0x08 - SDRAM Configuration Reg 1 */ 22 unsigned int cr2; /* 0x0c - SDRAM Configuration Reg 2 */ 23 unsigned int bank0_bsr; /* 0x10 - Ext. Bank Base/Size Reg 0 */ 24 unsigned int bank1_bsr; /* 0x14 - Ext. Bank Base/Size Reg 1 */ 25 unsigned int bank2_bsr; /* 0x18 - Ext. Bank Base/Size Reg 2 */ 26 unsigned int bank3_bsr; /* 0x1c - Ext. Bank Base/Size Reg 3 */ 27 unsigned int bank4_bsr; /* 0x20 - Ext. Bank Base/Size Reg 4 */ 28 unsigned int bank5_bsr; /* 0x24 - Ext. Bank Base/Size Reg 5 */ 29 unsigned int bank6_bsr; /* 0x28 - Ext. Bank Base/Size Reg 6 */ 30 unsigned int bank7_bsr; /* 0x2c - Ext. Bank Base/Size Reg 7 */ 31 unsigned int ragr; /* 0x30 - Read Arbitration Group Reg */ 32 unsigned int frr; /* 0x34 - Flush Request Register */ 33 unsigned int ebisr; /* 0x38 - EBI Support Register */ 34 unsigned int rsved[25]; /* 0x3c-0x9c - Reserved */ 35 unsigned int crr; /* 0x100 - Controller Revision Reg */ 36 unsigned int cfr; /* 0x104 - Controller Feature Reg */ 37 }; 38 #endif /* __ASSEMBLY__ */ 39 40 /* 41 * Timing Parameter 1 Register 42 */ 43 #define FTSDMC021_TP1_TCL(x) ((x) & 0x3) /* CAS Latency */ 44 #define FTSDMC021_TP1_TWR(x) (((x) & 0x3) << 4) /* W-Recovery Time */ 45 #define FTSDMC021_TP1_TRF(x) (((x) & 0xf) << 8) /* Auto-Refresh Cycle */ 46 #define FTSDMC021_TP1_TRCD(x) (((x) & 0x7) << 12) /* RAS-to-CAS Delay */ 47 #define FTSDMC021_TP1_TRP(x) (((x) & 0xf) << 16) /* Precharge Cycle */ 48 #define FTSDMC021_TP1_TRAS(x) (((x) & 0xf) << 20) 49 50 /* 51 * Timing Parameter 2 Register 52 */ 53 #define FTSDMC021_TP2_REF_INTV(x) ((x) & 0xffff) /* Refresh interval */ 54 /* b(16:19) - Initial Refresh Times */ 55 #define FTSDMC021_TP2_INI_REFT(x) (((x) & 0xf) << 16) 56 /* b(20:23) - Initial Pre-Charge Times */ 57 #define FTSDMC021_TP2_INI_PREC(x) (((x) & 0xf) << 20) 58 59 /* 60 * SDRAM Configuration Register 1 61 */ 62 #define FTSDMC021_CR1_BNKSIZE(x) ((x) & 0xf) /* Bank Size */ 63 #define FTSDMC021_CR1_MBW(x) (((x) & 0x3) << 4) /* Bus Width */ 64 #define FTSDMC021_CR1_DSZ(x) (((x) & 0x7) << 8) /* SDRAM Size */ 65 #define FTSDMC021_CR1_DDW(x) (((x) & 0x3) << 12) /* Data Width */ 66 /* b(16) MA2T: Double Memory Address Cycle Enable */ 67 #define FTSDMC021_CR1_MA2T(x) (1 << 16) 68 /* The value of b(0:3)CR1: 1M-512M, must be power of 2 */ 69 #define FTSDMC021_BANK_SIZE(x) (ffs(x) - 1) 70 71 /* 72 * Configuration Register 2 73 */ 74 #define FTSDMC021_CR2_SREF (1 << 0) /* Self-Refresh Mode */ 75 #define FTSDMC021_CR2_PWDN (1 << 1) /* Power Down Operation Mode */ 76 #define FTSDMC021_CR2_ISMR (1 << 2) /* Start Set-Mode-Register */ 77 #define FTSDMC021_CR2_IREF (1 << 3) /* Init Refresh Start Flag */ 78 #define FTSDMC021_CR2_IPREC (1 << 4) /* Init Pre-Charge Start Flag */ 79 #define FTSDMC021_CR2_REFTYPE (1 << 5) 80 81 /* 82 * SDRAM External Bank Base/Size Register 83 */ 84 #define FTSDMC021_BANK_ENABLE (1 << 12) 85 86 /* 12-bit base address of external bank. 87 * Default value is 0x800. 88 * The 12-bit equals to the haddr[31:20] of AHB address bus. */ 89 #define FTSDMC021_BANK_BASE(x) ((x) & 0xfff) 90 91 /* 92 * Read Arbitration Grant Window Register 93 */ 94 #define FTSDMC021_RAGR_CH1GW(x) (((x) & 0xff) << 0) 95 #define FTSDMC021_RAGR_CH2GW(x) (((x) & 0xff) << 4) 96 #define FTSDMC021_RAGR_CH3GW(x) (((x) & 0xff) << 8) 97 #define FTSDMC021_RAGR_CH4GW(x) (((x) & 0xff) << 12) 98 #define FTSDMC021_RAGR_CH5GW(x) (((x) & 0xff) << 16) 99 #define FTSDMC021_RAGR_CH6GW(x) (((x) & 0xff) << 20) 100 #define FTSDMC021_RAGR_CH7GW(x) (((x) & 0xff) << 24) 101 #define FTSDMC021_RAGR_CH8GW(x) (((x) & 0xff) << 28) 102 103 /* 104 * Flush Request Register 105 */ 106 #define FTSDMC021_FRR_FLUSHCHN(x) (((x) & 0x7) << 0) 107 #define FTSDMC021_FRR_FLUSHCMPLT (1 << 3) /* Flush Req Flag */ 108 109 /* 110 * External Bus Interface Support Register (EBISR) 111 */ 112 #define FTSDMC021_EBISR_MR(x) ((x) & 0xfff) /* Far-end mode */ 113 #define FTSDMC021_EBISR_PRSMR (1 << 12) /* Pre-SMR */ 114 #define FTSDMC021_EBISR_POPREC (1 << 13) 115 #define FTSDMC021_EBISR_POSMR (1 << 14) /* Post-SMR */ 116 117 /* 118 * Controller Revision Register (CRR, Read Only) 119 */ 120 #define FTSDMC021_CRR_REV_VER (((x) >> 0) & 0xff) 121 #define FTSDMC021_CRR_MINOR_VER (((x) >> 8) & 0xff) 122 #define FTSDMC021_CRR_MAJOR_VER (((x) >> 16) & 0xff) 123 124 /* 125 * Controller Feature Register (CFR, Read Only) 126 */ 127 #define FTSDMC021_CFR_EBNK (((x) >> 0) & 0xf) 128 #define FTSDMC021_CFR_CHN (((x) >> 8) & 0xf) 129 #define FTSDMC021_CFR_EBI (((x) >> 16) & 0x1) 130 #define FTSDMC021_CFR_CH1_FDEPTH (((x) >> 24) & 0x1) 131 #define FTSDMC021_CFR_CH2_FDEPTH (((x) >> 25) & 0x1) 132 #define FTSDMC021_CFR_CH3_FDEPTH (((x) >> 26) & 0x1) 133 #define FTSDMC021_CFR_CH4_FDEPTH (((x) >> 27) & 0x1) 134 #define FTSDMC021_CFR_CH5_FDEPTH (((x) >> 28) & 0x1) 135 #define FTSDMC021_CFR_CH6_FDEPTH (((x) >> 29) & 0x1) 136 #define FTSDMC021_CFR_CH7_FDEPTH (((x) >> 30) & 0x1) 137 #define FTSDMC021_CFR_CH8_FDEPTH (((x) >> 31) & 0x1) 138 139 #endif /* __FTSDMC021_H */ 140