1 /* SPDX-License-Identifier: GPL-2.0+ */
4 *-------------------------------------------------------------------
7 * Yangbo Lu <yangbo.lu@nxp.com>
9 * Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc
12 #ifndef __FSL_ESDHC_IMX_H__
13 #define __FSL_ESDHC_IMX_H__
15 #include <linux/bitops.h>
16 #include <linux/errno.h>
17 #include <asm/byteorder.h>
19 /* needed for the mmc_cfg definition */
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
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
41 #define IRQSTAT 0x0002e030
42 #define IRQSTAT_DMAE (0x10000000)
43 #define IRQSTAT_AC12E (0x01000000)
44 #define IRQSTAT_DEBE (0x00400000)
45 #define IRQSTAT_DCE (0x00200000)
46 #define IRQSTAT_DTOE (0x00100000)
47 #define IRQSTAT_CIE (0x00080000)
48 #define IRQSTAT_CEBE (0x00040000)
49 #define IRQSTAT_CCE (0x00020000)
50 #define IRQSTAT_CTOE (0x00010000)
51 #define IRQSTAT_CINT (0x00000100)
52 #define IRQSTAT_CRM (0x00000080)
53 #define IRQSTAT_CINS (0x00000040)
54 #define IRQSTAT_BRR (0x00000020)
55 #define IRQSTAT_BWR (0x00000010)
56 #define IRQSTAT_DINT (0x00000008)
57 #define IRQSTAT_BGE (0x00000004)
58 #define IRQSTAT_TC (0x00000002)
59 #define IRQSTAT_CC (0x00000001)
61 #define CMD_ERR (IRQSTAT_CIE | IRQSTAT_CEBE | IRQSTAT_CCE)
62 #define DATA_ERR (IRQSTAT_DEBE | IRQSTAT_DCE | IRQSTAT_DTOE | \
64 #define DATA_COMPLETE (IRQSTAT_TC | IRQSTAT_DINT)
66 #define IRQSTATEN 0x0002e034
67 #define IRQSTATEN_DMAE (0x10000000)
68 #define IRQSTATEN_AC12E (0x01000000)
69 #define IRQSTATEN_DEBE (0x00400000)
70 #define IRQSTATEN_DCE (0x00200000)
71 #define IRQSTATEN_DTOE (0x00100000)
72 #define IRQSTATEN_CIE (0x00080000)
73 #define IRQSTATEN_CEBE (0x00040000)
74 #define IRQSTATEN_CCE (0x00020000)
75 #define IRQSTATEN_CTOE (0x00010000)
76 #define IRQSTATEN_CINT (0x00000100)
77 #define IRQSTATEN_CRM (0x00000080)
78 #define IRQSTATEN_CINS (0x00000040)
79 #define IRQSTATEN_BRR (0x00000020)
80 #define IRQSTATEN_BWR (0x00000010)
81 #define IRQSTATEN_DINT (0x00000008)
82 #define IRQSTATEN_BGE (0x00000004)
83 #define IRQSTATEN_TC (0x00000002)
84 #define IRQSTATEN_CC (0x00000001)
86 #define ESDHCCTL 0x0002e40c
87 #define ESDHCCTL_PCS (0x00080000)
89 #define PRSSTAT 0x0002e024
90 #define PRSSTAT_DAT0 (0x01000000)
91 #define PRSSTAT_CLSL (0x00800000)
92 #define PRSSTAT_WPSPL (0x00080000)
93 #define PRSSTAT_CDPL (0x00040000)
94 #define PRSSTAT_CINS (0x00010000)
95 #define PRSSTAT_BREN (0x00000800)
96 #define PRSSTAT_BWEN (0x00000400)
97 #define PRSSTAT_SDSTB (0X00000008)
98 #define PRSSTAT_DLA (0x00000004)
99 #define PRSSTAT_CICHB (0x00000002)
100 #define PRSSTAT_CIDHB (0x00000001)
102 #define PROCTL 0x0002e028
103 #define PROCTL_INIT 0x00000020
104 #define PROCTL_DTW_4 0x00000002
105 #define PROCTL_DTW_8 0x00000004
106 #define PROCTL_D3CD 0x00000008
108 #define CMDARG 0x0002e008
110 #define XFERTYP 0x0002e00c
111 #define XFERTYP_CMD(x) ((x & 0x3f) << 24)
112 #define XFERTYP_CMDTYP_NORMAL 0x0
113 #define XFERTYP_CMDTYP_SUSPEND 0x00400000
114 #define XFERTYP_CMDTYP_RESUME 0x00800000
115 #define XFERTYP_CMDTYP_ABORT 0x00c00000
116 #define XFERTYP_DPSEL 0x00200000
117 #define XFERTYP_CICEN 0x00100000
118 #define XFERTYP_CCCEN 0x00080000
119 #define XFERTYP_RSPTYP_NONE 0
120 #define XFERTYP_RSPTYP_136 0x00010000
121 #define XFERTYP_RSPTYP_48 0x00020000
122 #define XFERTYP_RSPTYP_48_BUSY 0x00030000
123 #define XFERTYP_MSBSEL 0x00000020
124 #define XFERTYP_DTDSEL 0x00000010
125 #define XFERTYP_DDREN 0x00000008
126 #define XFERTYP_AC12EN 0x00000004
127 #define XFERTYP_BCEN 0x00000002
128 #define XFERTYP_DMAEN 0x00000001
130 #define CINS_TIMEOUT 1000
131 #define PIO_TIMEOUT 500
133 #define DSADDR 0x2e004
135 #define CMDRSP0 0x2e010
136 #define CMDRSP1 0x2e014
137 #define CMDRSP2 0x2e018
138 #define CMDRSP3 0x2e01c
140 #define DATPORT 0x2e020
143 #define WML_WRITE 0x00010000
144 #ifdef CONFIG_FSL_SDHC_V2_3
145 #define WML_RD_WML_MAX 0x80
146 #define WML_WR_WML_MAX 0x80
147 #define WML_RD_WML_MAX_VAL 0x0
148 #define WML_WR_WML_MAX_VAL 0x0
149 #define WML_RD_WML_MASK 0x7f
150 #define WML_WR_WML_MASK 0x7f0000
152 #define WML_RD_WML_MAX 0x10
153 #define WML_WR_WML_MAX 0x80
154 #define WML_RD_WML_MAX_VAL 0x10
155 #define WML_WR_WML_MAX_VAL 0x80
156 #define WML_RD_WML_MASK 0xff
157 #define WML_WR_WML_MASK 0xff0000
160 #define BLKATTR 0x2e004
161 #define BLKATTR_CNT(x) ((x & 0xffff) << 16)
162 #define BLKATTR_SIZE(x) (x & 0x1fff)
163 #define MAX_BLK_CNT 0x7fff /* so malloc will have enough room with 32M */
165 #define HOSTCAPBLT_VS18 0x04000000
166 #define HOSTCAPBLT_VS30 0x02000000
167 #define HOSTCAPBLT_VS33 0x01000000
168 #define HOSTCAPBLT_SRS 0x00800000
169 #define HOSTCAPBLT_DMAS 0x00400000
170 #define HOSTCAPBLT_HSS 0x00200000
172 #define ESDHC_VENDORSPEC_VSELECT 0x00000002 /* Use 1.8V */
174 /* Imported from Linux Kernel drivers/mmc/host/sdhci-esdhc-imx.c */
175 #define MIX_CTRL_DDREN BIT(3)
176 #define MIX_CTRL_DTDSEL_READ BIT(4)
177 #define MIX_CTRL_AC23EN BIT(7)
178 #define MIX_CTRL_EXE_TUNE BIT(22)
179 #define MIX_CTRL_SMPCLK_SEL BIT(23)
180 #define MIX_CTRL_AUTO_TUNE_EN BIT(24)
181 #define MIX_CTRL_FBCLK_SEL BIT(25)
182 #define MIX_CTRL_HS400_EN BIT(26)
183 #define MIX_CTRL_HS400_ES BIT(27)
184 /* Bits 3 and 6 are not SDHCI standard definitions */
185 #define MIX_CTRL_SDHCI_MASK 0xb7
187 #define MIX_CTRL_TUNING_MASK 0x03c00000
189 /* strobe dll register */
190 #define ESDHC_STROBE_DLL_CTRL 0x70
191 #define ESDHC_STROBE_DLL_CTRL_ENABLE BIT(0)
192 #define ESDHC_STROBE_DLL_CTRL_RESET BIT(1)
193 #define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT 0x7
194 #define ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT 3
195 #define ESDHC_STROBE_DLL_CTRL_SLV_UPDATE_INT_DEFAULT (4 << 20)
197 #define ESDHC_STROBE_DLL_STATUS 0x74
198 #define ESDHC_STROBE_DLL_STS_REF_LOCK BIT(1)
199 #define ESDHC_STROBE_DLL_STS_SLV_LOCK 0x1
200 #define ESDHC_STROBE_DLL_CLK_FREQ 100000000
202 #define ESDHC_STD_TUNING_EN BIT(24)
203 /* NOTE: the minimum valid tuning start tap for mx6sl is 1 */
204 #define ESDHC_TUNING_START_TAP_DEFAULT 0x1
205 #define ESDHC_TUNING_START_TAP_MASK 0x7f
206 #define ESDHC_TUNING_CMD_CRC_CHECK_DISABLE BIT(7)
207 #define ESDHC_TUNING_STEP_MASK 0x00070000
208 #define ESDHC_TUNING_STEP_SHIFT 16
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)
222 struct fsl_esdhc_cfg {
223 phys_addr_t esdhc_base;
227 int vs18_enable; /* Use 1.8V if set to 1 */
228 struct mmc_config cfg;
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
257 #error "Endianess is not defined: please fix to continue"
260 #ifdef CONFIG_FSL_ESDHC_IMX
261 int fsl_esdhc_mmc_init(struct bd_info *bis);
262 int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg);
263 void fdt_fixup_esdhc(void *blob, struct bd_info *bd);
265 static inline int fsl_esdhc_mmc_init(struct bd_info *bis) { return -ENOSYS; }
266 static inline void fdt_fixup_esdhc(void *blob, struct bd_info *bd) {}
267 #endif /* CONFIG_FSL_ESDHC_IMX */
268 void __noreturn mmc_boot(void);
269 void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
271 #endif /* __FSL_ESDHC_IMX_H__ */