1 /* SPDX-License-Identifier: GPL-2.0+ */
4 *-------------------------------------------------------------------
6 * Copyright 2007-2008,2010-2011 Freescale Semiconductor, Inc
10 #ifndef __FSL_ESDHC_H__
11 #define __FSL_ESDHC_H__
13 #include <linux/errno.h>
14 #include <asm/byteorder.h>
16 /* needed for the mmc_cfg definition */
19 /* FSL eSDHC-specific constants */
20 #define SYSCTL 0x0002e02c
21 #define SYSCTL_INITA 0x08000000
22 #define SYSCTL_TIMEOUT_MASK 0x000f0000
23 #define SYSCTL_CLOCK_MASK 0x0000fff0
24 #define SYSCTL_CKEN 0x00000008
25 #define SYSCTL_PEREN 0x00000004
26 #define SYSCTL_HCKEN 0x00000002
27 #define SYSCTL_IPGEN 0x00000001
28 #define SYSCTL_RSTA 0x01000000
29 #define SYSCTL_RSTC 0x02000000
30 #define SYSCTL_RSTD 0x04000000
32 #define IRQSTAT 0x0002e030
33 #define IRQSTAT_DMAE (0x10000000)
34 #define IRQSTAT_AC12E (0x01000000)
35 #define IRQSTAT_DEBE (0x00400000)
36 #define IRQSTAT_DCE (0x00200000)
37 #define IRQSTAT_DTOE (0x00100000)
38 #define IRQSTAT_CIE (0x00080000)
39 #define IRQSTAT_CEBE (0x00040000)
40 #define IRQSTAT_CCE (0x00020000)
41 #define IRQSTAT_CTOE (0x00010000)
42 #define IRQSTAT_CINT (0x00000100)
43 #define IRQSTAT_CRM (0x00000080)
44 #define IRQSTAT_CINS (0x00000040)
45 #define IRQSTAT_BRR (0x00000020)
46 #define IRQSTAT_BWR (0x00000010)
47 #define IRQSTAT_DINT (0x00000008)
48 #define IRQSTAT_BGE (0x00000004)
49 #define IRQSTAT_TC (0x00000002)
50 #define IRQSTAT_CC (0x00000001)
52 #define CMD_ERR (IRQSTAT_CIE | IRQSTAT_CEBE | IRQSTAT_CCE)
53 #define DATA_ERR (IRQSTAT_DEBE | IRQSTAT_DCE | IRQSTAT_DTOE | \
55 #define DATA_COMPLETE (IRQSTAT_TC | IRQSTAT_DINT)
57 #define IRQSTATEN 0x0002e034
58 #define IRQSTATEN_DMAE (0x10000000)
59 #define IRQSTATEN_AC12E (0x01000000)
60 #define IRQSTATEN_DEBE (0x00400000)
61 #define IRQSTATEN_DCE (0x00200000)
62 #define IRQSTATEN_DTOE (0x00100000)
63 #define IRQSTATEN_CIE (0x00080000)
64 #define IRQSTATEN_CEBE (0x00040000)
65 #define IRQSTATEN_CCE (0x00020000)
66 #define IRQSTATEN_CTOE (0x00010000)
67 #define IRQSTATEN_CINT (0x00000100)
68 #define IRQSTATEN_CRM (0x00000080)
69 #define IRQSTATEN_CINS (0x00000040)
70 #define IRQSTATEN_BRR (0x00000020)
71 #define IRQSTATEN_BWR (0x00000010)
72 #define IRQSTATEN_DINT (0x00000008)
73 #define IRQSTATEN_BGE (0x00000004)
74 #define IRQSTATEN_TC (0x00000002)
75 #define IRQSTATEN_CC (0x00000001)
77 /* eSDHC control register */
78 #define ESDHCCTL 0x0002e40c
79 #define ESDHCCTL_SNOOP (0x00000040)
80 #define ESDHCCTL_PCS (0x00080000)
81 #define ESDHCCTL_FAF (0x00040000)
83 #define PRSSTAT 0x0002e024
84 #define PRSSTAT_DAT0 (0x01000000)
85 #define PRSSTAT_CLSL (0x00800000)
86 #define PRSSTAT_WPSPL (0x00080000)
87 #define PRSSTAT_CDPL (0x00040000)
88 #define PRSSTAT_CINS (0x00010000)
89 #define PRSSTAT_BREN (0x00000800)
90 #define PRSSTAT_BWEN (0x00000400)
91 #define PRSSTAT_SDSTB (0X00000008)
92 #define PRSSTAT_DLA (0x00000004)
93 #define PRSSTAT_CICHB (0x00000002)
94 #define PRSSTAT_CIDHB (0x00000001)
96 #define PROCTL 0x0002e028
97 #define PROCTL_INIT 0x00000020
98 #define PROCTL_DTW_4 0x00000002
99 #define PROCTL_DTW_8 0x00000004
100 #define PROCTL_D3CD 0x00000008
101 #define PROCTL_DMAS_MASK 0x00000300
102 #define PROCTL_DMAS_SDMA 0x00000000
103 #define PROCTL_DMAS_ADMA1 0x00000100
104 #define PROCTL_DMAS_ADMA2 0x00000300
105 #define PROCTL_VOLT_SEL 0x00000400
107 #define CMDARG 0x0002e008
109 #define XFERTYP 0x0002e00c
110 #define XFERTYP_CMD(x) ((x & 0x3f) << 24)
111 #define XFERTYP_CMDTYP_NORMAL 0x0
112 #define XFERTYP_CMDTYP_SUSPEND 0x00400000
113 #define XFERTYP_CMDTYP_RESUME 0x00800000
114 #define XFERTYP_CMDTYP_ABORT 0x00c00000
115 #define XFERTYP_DPSEL 0x00200000
116 #define XFERTYP_CICEN 0x00100000
117 #define XFERTYP_CCCEN 0x00080000
118 #define XFERTYP_RSPTYP_NONE 0
119 #define XFERTYP_RSPTYP_136 0x00010000
120 #define XFERTYP_RSPTYP_48 0x00020000
121 #define XFERTYP_RSPTYP_48_BUSY 0x00030000
122 #define XFERTYP_MSBSEL 0x00000020
123 #define XFERTYP_DTDSEL 0x00000010
124 #define XFERTYP_DDREN 0x00000008
125 #define XFERTYP_AC12EN 0x00000004
126 #define XFERTYP_BCEN 0x00000002
127 #define XFERTYP_DMAEN 0x00000001
129 #define CINS_TIMEOUT 1000
130 #define PIO_TIMEOUT 500
132 #define DSADDR 0x2e004
134 #define CMDRSP0 0x2e010
135 #define CMDRSP1 0x2e014
136 #define CMDRSP2 0x2e018
137 #define CMDRSP3 0x2e01c
139 #define DATPORT 0x2e020
142 #define WML_WRITE 0x00010000
143 #ifdef CONFIG_FSL_SDHC_V2_3
144 #define WML_RD_WML_MAX 0x80
145 #define WML_WR_WML_MAX 0x80
146 #define WML_RD_WML_MAX_VAL 0x0
147 #define WML_WR_WML_MAX_VAL 0x0
148 #define WML_RD_WML_MASK 0x7f
149 #define WML_WR_WML_MASK 0x7f0000
151 #define WML_RD_WML_MAX 0x10
152 #define WML_WR_WML_MAX 0x80
153 #define WML_RD_WML_MAX_VAL 0x10
154 #define WML_WR_WML_MAX_VAL 0x80
155 #define WML_RD_WML_MASK 0xff
156 #define WML_WR_WML_MASK 0xff0000
159 #define BLKATTR 0x2e004
160 #define BLKATTR_CNT(x) ((x & 0xffff) << 16)
161 #define BLKATTR_SIZE(x) (x & 0x1fff)
162 #define MAX_BLK_CNT 0x7fff /* so malloc will have enough room with 32M */
164 /* Auto CMD error status register / system control 2 register */
165 #define EXECUTE_TUNING 0x00400000
166 #define SMPCLKSEL 0x00800000
167 #define UHSM_MASK 0x00070000
168 #define UHSM_SDR104_HS200 0x00030000
170 /* Host controller capabilities register */
171 #define HOSTCAPBLT_VS18 0x04000000
172 #define HOSTCAPBLT_VS30 0x02000000
173 #define HOSTCAPBLT_VS33 0x01000000
174 #define HOSTCAPBLT_SRS 0x00800000
175 #define HOSTCAPBLT_DMAS 0x00400000
176 #define HOSTCAPBLT_HSS 0x00200000
178 /* Tuning block control register */
179 #define TBCTL_TB_EN 0x00000004
180 #define HS400_MODE 0x00000010
181 #define HS400_WNDW_ADJUST 0x00000040
183 /* SD clock control register */
184 #define CMD_CLK_CTL 0x00008000
186 /* SD timing control register */
187 #define FLW_CTL_BG 0x00008000
189 /* DLL config 0 register */
190 #define DLL_ENABLE 0x80000000
191 #define DLL_RESET 0x40000000
192 #define DLL_FREQ_SEL 0x08000000
194 /* DLL config 1 register */
195 #define DLL_PD_PULSE_STRETCH_SEL 0x80000000
197 /* DLL status 0 register */
198 #define DLL_STS_SLV_LOCK 0x08000000
200 #define MAX_TUNING_LOOP 40
202 #define HOSTVER_VENDOR(x) (((x) >> 8) & 0xff)
203 #define VENDOR_V_10 0x00
204 #define VENDOR_V_20 0x10
205 #define VENDOR_V_21 0x11
206 #define VENDOR_V_22 0x12
207 #define VENDOR_V_23 0x13
208 #define VENDOR_V_30 0x20
209 #define VENDOR_V_31 0x21
210 #define VENDOR_V_32 0x22
212 struct fsl_esdhc_cfg {
213 phys_addr_t esdhc_base;
216 int vs18_enable; /* Use 1.8V if set to 1 */
217 struct mmc_config cfg;
220 /* Select the correct accessors depending on endianess */
221 #if defined CONFIG_SYS_FSL_ESDHC_LE
222 #define esdhc_read32 in_le32
223 #define esdhc_write32 out_le32
224 #define esdhc_clrsetbits32 clrsetbits_le32
225 #define esdhc_clrbits32 clrbits_le32
226 #define esdhc_setbits32 setbits_le32
227 #elif defined(CONFIG_SYS_FSL_ESDHC_BE)
228 #define esdhc_read32 in_be32
229 #define esdhc_write32 out_be32
230 #define esdhc_clrsetbits32 clrsetbits_be32
231 #define esdhc_clrbits32 clrbits_be32
232 #define esdhc_setbits32 setbits_be32
233 #elif __BYTE_ORDER == __LITTLE_ENDIAN
234 #define esdhc_read32 in_le32
235 #define esdhc_write32 out_le32
236 #define esdhc_clrsetbits32 clrsetbits_le32
237 #define esdhc_clrbits32 clrbits_le32
238 #define esdhc_setbits32 setbits_le32
239 #elif __BYTE_ORDER == __BIG_ENDIAN
240 #define esdhc_read32 in_be32
241 #define esdhc_write32 out_be32
242 #define esdhc_clrsetbits32 clrsetbits_be32
243 #define esdhc_clrbits32 clrbits_be32
244 #define esdhc_setbits32 setbits_be32
246 #error "Endianess is not defined: please fix to continue"
249 #ifdef CONFIG_FSL_ESDHC
250 int fsl_esdhc_mmc_init(struct bd_info *bis);
251 int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg);
252 void fdt_fixup_esdhc(void *blob, struct bd_info *bd);
254 static inline int fsl_esdhc_mmc_init(struct bd_info *bis) { return -ENOSYS; }
255 static inline void fdt_fixup_esdhc(void *blob, struct bd_info *bd) {}
256 #endif /* CONFIG_FSL_ESDHC */
257 void __noreturn mmc_boot(void);
258 void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
260 #endif /* __FSL_ESDHC_H__ */