include/fsl_esdhc_imx.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * FSL SD/MMC Defines
   4  *-------------------------------------------------------------------
   5  *
   6  * Copyright 2019 NXP
   7  * Yangbo Lu <yangbo.lu@nxp.com>
   8  *
   9  * Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc
  10  */
  11
  12 #ifndef __FSL_ESDHC_IMX_H__
  13 #define __FSL_ESDHC_IMX_H__
  14
  15 #include <linux/bitops.h>
  16 #include <linux/errno.h>
  17 #include <asm/byteorder.h>
  18
  19 /* needed for the mmc_cfg definition */
  20 #include <mmc.h>
  21
  22 /* FSL eSDHC-specific constants */
  23 #define SYSCTL                  0x0002e02c
  24 #define SYSCTL_INITA            0x08000000
  25 #define SYSCTL_TIMEOUT_MASK     0x000f0000
  26 #define SYSCTL_CLOCK_MASK       0x0000fff0
  27 #define SYSCTL_CKEN             0x00000008
  28 #define SYSCTL_PEREN            0x00000004
  29 #define SYSCTL_HCKEN            0x00000002
  30 #define SYSCTL_IPGEN            0x00000001
  31 #define SYSCTL_RSTA             0x01000000
  32 #define SYSCTL_RSTC             0x02000000
  33 #define SYSCTL_RSTD             0x04000000
  34
  35 #define VENDORSPEC_CKEN         0x00004000
  36 #define VENDORSPEC_PEREN        0x00002000
  37 #define VENDORSPEC_HCKEN        0x00001000
  38 #define VENDORSPEC_IPGEN        0x00000800
  39 #define VENDORSPEC_INIT         0x20007809
  40 #define VENDORSPEC_FRC_SDCLK_ON 0x00000100
  41
  42 #define IRQSTAT                 0x0002e030
  43 #define IRQSTAT_DMAE            (0x10000000)
  44 #define IRQSTAT_AC12E           (0x01000000)
  45 #define IRQSTAT_DEBE            (0x00400000)
  46 #define IRQSTAT_DCE             (0x00200000)
  47 #define IRQSTAT_DTOE            (0x00100000)
  48 #define IRQSTAT_CIE             (0x00080000)
  49 #define IRQSTAT_CEBE            (0x00040000)
  50 #define IRQSTAT_CCE             (0x00020000)
  51 #define IRQSTAT_CTOE            (0x00010000)
  52 #define IRQSTAT_CINT            (0x00000100)
  53 #define IRQSTAT_CRM             (0x00000080)
  54 #define IRQSTAT_CINS            (0x00000040)
  55 #define IRQSTAT_BRR             (0x00000020)
  56 #define IRQSTAT_BWR             (0x00000010)
  57 #define IRQSTAT_DINT            (0x00000008)
  58 #define IRQSTAT_BGE             (0x00000004)
  59 #define IRQSTAT_TC              (0x00000002)
  60 #define IRQSTAT_CC              (0x00000001)
  61
  62 #define CMD_ERR         (IRQSTAT_CIE | IRQSTAT_CEBE | IRQSTAT_CCE)
  63 #define DATA_ERR        (IRQSTAT_DEBE | IRQSTAT_DCE | IRQSTAT_DTOE | \
  64                                 IRQSTAT_DMAE)
  65 #define DATA_COMPLETE   (IRQSTAT_TC | IRQSTAT_DINT)
  66
  67 #define IRQSTATEN               0x0002e034
  68 #define IRQSTATEN_DMAE          (0x10000000)
  69 #define IRQSTATEN_AC12E         (0x01000000)
  70 #define IRQSTATEN_DEBE          (0x00400000)
  71 #define IRQSTATEN_DCE           (0x00200000)
  72 #define IRQSTATEN_DTOE          (0x00100000)
  73 #define IRQSTATEN_CIE           (0x00080000)
  74 #define IRQSTATEN_CEBE          (0x00040000)
  75 #define IRQSTATEN_CCE           (0x00020000)
  76 #define IRQSTATEN_CTOE          (0x00010000)
  77 #define IRQSTATEN_CINT          (0x00000100)
  78 #define IRQSTATEN_CRM           (0x00000080)
  79 #define IRQSTATEN_CINS          (0x00000040)
  80 #define IRQSTATEN_BRR           (0x00000020)
  81 #define IRQSTATEN_BWR           (0x00000010)
  82 #define IRQSTATEN_DINT          (0x00000008)
  83 #define IRQSTATEN_BGE           (0x00000004)
  84 #define IRQSTATEN_TC            (0x00000002)
  85 #define IRQSTATEN_CC            (0x00000001)
  86
  87 #define ESDHCCTL                0x0002e40c
  88 #define ESDHCCTL_PCS            (0x00080000)
  89
  90 #define PRSSTAT                 0x0002e024
  91 #define PRSSTAT_DAT0            (0x01000000)
  92 #define PRSSTAT_CLSL            (0x00800000)
  93 #define PRSSTAT_WPSPL           (0x00080000)
  94 #define PRSSTAT_CDPL            (0x00040000)
  95 #define PRSSTAT_CINS            (0x00010000)
  96 #define PRSSTAT_BREN            (0x00000800)
  97 #define PRSSTAT_BWEN            (0x00000400)
  98 #define PRSSTAT_SDOFF           (0x00000080)
  99 #define PRSSTAT_SDSTB           (0X00000008)
 100 #define PRSSTAT_DLA             (0x00000004)
 101 #define PRSSTAT_CICHB           (0x00000002)
 102 #define PRSSTAT_CIDHB           (0x00000001)
 103
 104 #define PROCTL                  0x0002e028
 105 #define PROCTL_INIT             0x00000020
 106 #define PROCTL_DTW_4            0x00000002
 107 #define PROCTL_DTW_8            0x00000004
 108 #define PROCTL_D3CD             0x00000008
 109
 110 #define CMDARG                  0x0002e008
 111
 112 #define XFERTYP                 0x0002e00c
 113 #define XFERTYP_CMD(x)          ((x & 0x3f) << 24)
 114 #define XFERTYP_CMDTYP_NORMAL   0x0
 115 #define XFERTYP_CMDTYP_SUSPEND  0x00400000
 116 #define XFERTYP_CMDTYP_RESUME   0x00800000
 117 #define XFERTYP_CMDTYP_ABORT    0x00c00000
 118 #define XFERTYP_DPSEL           0x00200000
 119 #define XFERTYP_CICEN           0x00100000
 120 #define XFERTYP_CCCEN           0x00080000
 121 #define XFERTYP_RSPTYP_NONE     0
 122 #define XFERTYP_RSPTYP_136      0x00010000
 123 #define XFERTYP_RSPTYP_48       0x00020000
 124 #define XFERTYP_RSPTYP_48_BUSY  0x00030000
 125 #define XFERTYP_MSBSEL          0x00000020
 126 #define XFERTYP_DTDSEL          0x00000010
 127 #define XFERTYP_DDREN           0x00000008
 128 #define XFERTYP_AC12EN          0x00000004
 129 #define XFERTYP_BCEN            0x00000002
 130 #define XFERTYP_DMAEN           0x00000001
 131
 132 #define CINS_TIMEOUT            1000
 133 #define PIO_TIMEOUT             500
 134
 135 #define DSADDR          0x2e004
 136
 137 #define CMDRSP0         0x2e010
 138 #define CMDRSP1         0x2e014
 139 #define CMDRSP2         0x2e018
 140 #define CMDRSP3         0x2e01c
 141
 142 #define DATPORT         0x2e020
 143
 144 #define WML             0x2e044
 145 #define WML_WRITE       0x00010000
 146 #ifdef CONFIG_FSL_SDHC_V2_3
 147 #define WML_RD_WML_MAX          0x80
 148 #define WML_WR_WML_MAX          0x80
 149 #define WML_RD_WML_MAX_VAL      0x0
 150 #define WML_WR_WML_MAX_VAL      0x0
 151 #define WML_RD_WML_MASK         0x7f
 152 #define WML_WR_WML_MASK         0x7f0000
 153 #else
 154 #define WML_RD_WML_MAX          0x10
 155 #define WML_WR_WML_MAX          0x80
 156 #define WML_RD_WML_MAX_VAL      0x10
 157 #define WML_WR_WML_MAX_VAL      0x80
 158 #define WML_RD_WML_MASK 0xff
 159 #define WML_WR_WML_MASK 0xff0000
 160 #endif
 161
 162 #define BLKATTR         0x2e004
 163 #define BLKATTR_CNT(x)  ((x & 0xffff) << 16)
 164 #define BLKATTR_SIZE(x) (x & 0x1fff)
 165 #define MAX_BLK_CNT     0x7fff  /* so malloc will have enough room with 32M */
 166
 167 #define HOSTCAPBLT_VS18 0x04000000
 168 #define HOSTCAPBLT_VS30 0x02000000
 169 #define HOSTCAPBLT_VS33 0x01000000
 170 #define HOSTCAPBLT_SRS  0x00800000
 171 #define HOSTCAPBLT_DMAS 0x00400000
 172 #define HOSTCAPBLT_HSS  0x00200000
 173
 174 #define ESDHC_VENDORSPEC_VSELECT 0x00000002 /* Use 1.8V */
 175
 176 /* Imported from Linux Kernel drivers/mmc/host/sdhci-esdhc-imx.c */
 177 #define MIX_CTRL_DDREN          BIT(3)
 178 #define MIX_CTRL_DTDSEL_READ    BIT(4)
 179 #define MIX_CTRL_AC23EN         BIT(7)
 180 #define MIX_CTRL_EXE_TUNE       BIT(22)
 181 #define MIX_CTRL_SMPCLK_SEL     BIT(23)
 182 #define MIX_CTRL_AUTO_TUNE_EN   BIT(24)
 183 #define MIX_CTRL_FBCLK_SEL      BIT(25)
 184 #define MIX_CTRL_HS400_EN       BIT(26)
 185 #define MIX_CTRL_HS400_ES       BIT(27)
 186 /* Bits 3 and 6 are not SDHCI standard definitions */
 187 #define MIX_CTRL_SDHCI_MASK     0xb7
 188 /* Tuning bits */
 189 #define MIX_CTRL_TUNING_MASK    0x03c00000
 190
 191 /* strobe dll register */
 192 #define ESDHC_STROBE_DLL_CTRL           0x70
 193 #define ESDHC_STROBE_DLL_CTRL_ENABLE    BIT(0)
 194 #define ESDHC_STROBE_DLL_CTRL_RESET     BIT(1)
 195 #define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT    0x7
 196 #define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT      3
 197 #define ESDHC_STROBE_DLL_CTRL_SLV_UPDATE_INT_DEFAULT   (4 << 20)
 198
 199 #define ESDHC_STROBE_DLL_STATUS         0x74
 200 #define ESDHC_STROBE_DLL_STS_REF_LOCK   BIT(1)
 201 #define ESDHC_STROBE_DLL_STS_SLV_LOCK   0x1
 202 #define ESDHC_STROBE_DLL_CLK_FREQ       100000000
 203
 204 #define ESDHC_STD_TUNING_EN             BIT(24)
 205 /* NOTE: the minimum valid tuning start tap for mx6sl is 1 */
 206 #define ESDHC_TUNING_START_TAP_DEFAULT  0x1
 207 #define ESDHC_TUNING_START_TAP_MASK     0x7f
 208 #define ESDHC_TUNING_CMD_CRC_CHECK_DISABLE      BIT(7)
 209 #define ESDHC_TUNING_STEP_MASK          0x00070000
 210 #define ESDHC_TUNING_STEP_SHIFT         16
 211
 212 #define ESDHC_FLAG_MULTIBLK_NO_INT      BIT(1)
 213 #define ESDHC_FLAG_ENGCM07207           BIT(2)
 214 #define ESDHC_FLAG_USDHC                BIT(3)
 215 #define ESDHC_FLAG_MAN_TUNING           BIT(4)
 216 #define ESDHC_FLAG_STD_TUNING           BIT(5)
 217 #define ESDHC_FLAG_HAVE_CAP1            BIT(6)
 218 #define ESDHC_FLAG_ERR004536            BIT(7)
 219 #define ESDHC_FLAG_HS200                BIT(8)
 220 #define ESDHC_FLAG_HS400                BIT(9)
 221 #define ESDHC_FLAG_ERR010450            BIT(10)
 222 #define ESDHC_FLAG_HS400_ES             BIT(11)
 223
 224 struct fsl_esdhc_cfg {
 225         phys_addr_t esdhc_base;
 226         u32     sdhc_clk;
 227         u8      max_bus_width;
 228         int     wp_enable;
 229         int     vs18_enable; /* Use 1.8V if set to 1 */
 230         struct mmc_config cfg;
 231 };
 232
 233 /* Select the correct accessors depending on endianess */
 234 #if defined CONFIG_SYS_FSL_ESDHC_LE
 235 #define esdhc_read32            in_le32
 236 #define esdhc_write32           out_le32
 237 #define esdhc_clrsetbits32      clrsetbits_le32
 238 #define esdhc_clrbits32         clrbits_le32
 239 #define esdhc_setbits32         setbits_le32
 240 #elif defined(CONFIG_SYS_FSL_ESDHC_BE)
 241 #define esdhc_read32            in_be32
 242 #define esdhc_write32           out_be32
 243 #define esdhc_clrsetbits32      clrsetbits_be32
 244 #define esdhc_clrbits32         clrbits_be32
 245 #define esdhc_setbits32         setbits_be32
 246 #elif __BYTE_ORDER == __LITTLE_ENDIAN
 247 #define esdhc_read32            in_le32
 248 #define esdhc_write32           out_le32
 249 #define esdhc_clrsetbits32      clrsetbits_le32
 250 #define esdhc_clrbits32         clrbits_le32
 251 #define esdhc_setbits32         setbits_le32
 252 #elif __BYTE_ORDER == __BIG_ENDIAN
 253 #define esdhc_read32            in_be32
 254 #define esdhc_write32           out_be32
 255 #define esdhc_clrsetbits32      clrsetbits_be32
 256 #define esdhc_clrbits32         clrbits_be32
 257 #define esdhc_setbits32         setbits_be32
 258 #else
 259 #error "Endianess is not defined: please fix to continue"
 260 #endif
 261
 262 #ifdef CONFIG_FSL_ESDHC_IMX
 263 int fsl_esdhc_mmc_init(struct bd_info *bis);
 264 int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg);
 265 void fdt_fixup_esdhc(void *blob, struct bd_info *bd);
 266 #else
 267 static inline int fsl_esdhc_mmc_init(struct bd_info *bis) { return -ENOSYS; }
 268 static inline void fdt_fixup_esdhc(void *blob, struct bd_info *bd) {}
 269 #endif /* CONFIG_FSL_ESDHC_IMX */
 270 void __noreturn mmc_boot(void);
 271 void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
 272
 273 #endif  /* __FSL_ESDHC_IMX_H__ */