1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * FSL SD/MMC Defines 4 *------------------------------------------------------------------- 5 * 6 * Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc 7 */ 8 9 #ifndef __FSL_ESDHC_H__ 10 #define __FSL_ESDHC_H__ 11 12 #include <linux/bitops.h> 13 #include <linux/errno.h> 14 #include <asm/byteorder.h> 15 16 /* needed for the mmc_cfg definition */ 17 #include <mmc.h> 18 19 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT 20 #include "../board/freescale/common/qixis.h" 21 #endif 22 23 /* FSL eSDHC-specific constants */ 24 #define SYSCTL 0x0002e02c 25 #define SYSCTL_INITA 0x08000000 26 #define SYSCTL_TIMEOUT_MASK 0x000f0000 27 #define SYSCTL_CLOCK_MASK 0x0000fff0 28 #if !defined(CONFIG_FSL_USDHC) 29 #define SYSCTL_CKEN 0x00000008 30 #define SYSCTL_PEREN 0x00000004 31 #define SYSCTL_HCKEN 0x00000002 32 #define SYSCTL_IPGEN 0x00000001 33 #endif 34 #define SYSCTL_RSTA 0x01000000 35 #define SYSCTL_RSTC 0x02000000 36 #define SYSCTL_RSTD 0x04000000 37 38 #define VENDORSPEC_CKEN 0x00004000 39 #define VENDORSPEC_PEREN 0x00002000 40 #define VENDORSPEC_HCKEN 0x00001000 41 #define VENDORSPEC_IPGEN 0x00000800 42 #define VENDORSPEC_INIT 0x20007809 43 44 #define IRQSTAT 0x0002e030 45 #define IRQSTAT_DMAE (0x10000000) 46 #define IRQSTAT_AC12E (0x01000000) 47 #define IRQSTAT_DEBE (0x00400000) 48 #define IRQSTAT_DCE (0x00200000) 49 #define IRQSTAT_DTOE (0x00100000) 50 #define IRQSTAT_CIE (0x00080000) 51 #define IRQSTAT_CEBE (0x00040000) 52 #define IRQSTAT_CCE (0x00020000) 53 #define IRQSTAT_CTOE (0x00010000) 54 #define IRQSTAT_CINT (0x00000100) 55 #define IRQSTAT_CRM (0x00000080) 56 #define IRQSTAT_CINS (0x00000040) 57 #define IRQSTAT_BRR (0x00000020) 58 #define IRQSTAT_BWR (0x00000010) 59 #define IRQSTAT_DINT (0x00000008) 60 #define IRQSTAT_BGE (0x00000004) 61 #define IRQSTAT_TC (0x00000002) 62 #define IRQSTAT_CC (0x00000001) 63 64 #define CMD_ERR (IRQSTAT_CIE | IRQSTAT_CEBE | IRQSTAT_CCE) 65 #define DATA_ERR (IRQSTAT_DEBE | IRQSTAT_DCE | IRQSTAT_DTOE | \ 66 IRQSTAT_DMAE) 67 #define DATA_COMPLETE (IRQSTAT_TC | IRQSTAT_DINT) 68 69 #define IRQSTATEN 0x0002e034 70 #define IRQSTATEN_DMAE (0x10000000) 71 #define IRQSTATEN_AC12E (0x01000000) 72 #define IRQSTATEN_DEBE (0x00400000) 73 #define IRQSTATEN_DCE (0x00200000) 74 #define IRQSTATEN_DTOE (0x00100000) 75 #define IRQSTATEN_CIE (0x00080000) 76 #define IRQSTATEN_CEBE (0x00040000) 77 #define IRQSTATEN_CCE (0x00020000) 78 #define IRQSTATEN_CTOE (0x00010000) 79 #define IRQSTATEN_CINT (0x00000100) 80 #define IRQSTATEN_CRM (0x00000080) 81 #define IRQSTATEN_CINS (0x00000040) 82 #define IRQSTATEN_BRR (0x00000020) 83 #define IRQSTATEN_BWR (0x00000010) 84 #define IRQSTATEN_DINT (0x00000008) 85 #define IRQSTATEN_BGE (0x00000004) 86 #define IRQSTATEN_TC (0x00000002) 87 #define IRQSTATEN_CC (0x00000001) 88 89 #define ESDHCCTL 0x0002e40c 90 #define ESDHCCTL_PCS (0x00080000) 91 92 #define PRSSTAT 0x0002e024 93 #define PRSSTAT_DAT0 (0x01000000) 94 #define PRSSTAT_CLSL (0x00800000) 95 #define PRSSTAT_WPSPL (0x00080000) 96 #define PRSSTAT_CDPL (0x00040000) 97 #define PRSSTAT_CINS (0x00010000) 98 #define PRSSTAT_BREN (0x00000800) 99 #define PRSSTAT_BWEN (0x00000400) 100 #define PRSSTAT_SDSTB (0X00000008) 101 #define PRSSTAT_DLA (0x00000004) 102 #define PRSSTAT_CICHB (0x00000002) 103 #define PRSSTAT_CIDHB (0x00000001) 104 105 #define PROCTL 0x0002e028 106 #define PROCTL_INIT 0x00000020 107 #define PROCTL_DTW_4 0x00000002 108 #define PROCTL_DTW_8 0x00000004 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 ESDHC_HOSTCAPBLT_VS18 0x04000000 168 #define ESDHC_HOSTCAPBLT_VS30 0x02000000 169 #define ESDHC_HOSTCAPBLT_VS33 0x01000000 170 #define ESDHC_HOSTCAPBLT_SRS 0x00800000 171 #define ESDHC_HOSTCAPBLT_DMAS 0x00400000 172 #define ESDHC_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 3 197 198 #define ESDHC_STROBE_DLL_STATUS 0x74 199 #define ESDHC_STROBE_DLL_STS_REF_LOCK BIT(1) 200 #define ESDHC_STROBE_DLL_STS_SLV_LOCK 0x1 201 #define ESDHC_STROBE_DLL_CLK_FREQ 100000000 202 203 #define ESDHC_STD_TUNING_EN BIT(24) 204 /* NOTE: the minimum valid tuning start tap for mx6sl is 1 */ 205 #define ESDHC_TUNING_START_TAP_DEFAULT 0x1 206 #define ESDHC_TUNING_START_TAP_MASK 0xff 207 #define ESDHC_TUNING_STEP_MASK 0x00070000 208 #define ESDHC_TUNING_STEP_SHIFT 16 209 210 #define ESDHC_FLAG_MULTIBLK_NO_INT BIT(1) 211 #define ESDHC_FLAG_ENGCM07207 BIT(2) 212 #define ESDHC_FLAG_USDHC BIT(3) 213 #define ESDHC_FLAG_MAN_TUNING BIT(4) 214 #define ESDHC_FLAG_STD_TUNING BIT(5) 215 #define ESDHC_FLAG_HAVE_CAP1 BIT(6) 216 #define ESDHC_FLAG_ERR004536 BIT(7) 217 #define ESDHC_FLAG_HS200 BIT(8) 218 #define ESDHC_FLAG_HS400 BIT(9) 219 #define ESDHC_FLAG_ERR010450 BIT(10) 220 #define ESDHC_FLAG_HS400_ES BIT(11) 221 222 struct fsl_esdhc_cfg { 223 phys_addr_t esdhc_base; 224 u32 sdhc_clk; 225 u8 max_bus_width; 226 int wp_enable; 227 int vs18_enable; /* Use 1.8V if set to 1 */ 228 struct mmc_config cfg; 229 }; 230 231 /* Select the correct accessors depending on endianess */ 232 #if defined CONFIG_SYS_FSL_ESDHC_LE 233 #define esdhc_read32 in_le32 234 #define esdhc_write32 out_le32 235 #define esdhc_clrsetbits32 clrsetbits_le32 236 #define esdhc_clrbits32 clrbits_le32 237 #define esdhc_setbits32 setbits_le32 238 #elif defined(CONFIG_SYS_FSL_ESDHC_BE) 239 #define esdhc_read32 in_be32 240 #define esdhc_write32 out_be32 241 #define esdhc_clrsetbits32 clrsetbits_be32 242 #define esdhc_clrbits32 clrbits_be32 243 #define esdhc_setbits32 setbits_be32 244 #elif __BYTE_ORDER == __LITTLE_ENDIAN 245 #define esdhc_read32 in_le32 246 #define esdhc_write32 out_le32 247 #define esdhc_clrsetbits32 clrsetbits_le32 248 #define esdhc_clrbits32 clrbits_le32 249 #define esdhc_setbits32 setbits_le32 250 #elif __BYTE_ORDER == __BIG_ENDIAN 251 #define esdhc_read32 in_be32 252 #define esdhc_write32 out_be32 253 #define esdhc_clrsetbits32 clrsetbits_be32 254 #define esdhc_clrbits32 clrbits_be32 255 #define esdhc_setbits32 setbits_be32 256 #else 257 #error "Endianess is not defined: please fix to continue" 258 #endif 259 260 #ifdef CONFIG_FSL_ESDHC 261 int fsl_esdhc_mmc_init(bd_t *bis); 262 int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg); 263 void fdt_fixup_esdhc(void *blob, bd_t *bd); 264 #else 265 static inline int fsl_esdhc_mmc_init(bd_t *bis) { return -ENOSYS; } 266 static inline void fdt_fixup_esdhc(void *blob, bd_t *bd) {} 267 #endif /* CONFIG_FSL_ESDHC */ 268 void __noreturn mmc_boot(void); 269 void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst); 270 271 #endif /* __FSL_ESDHC_H__ */ 272