2 * Copyright (c) 2011-2012 Semihalf
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 #include <sys/cdefs.h>
34 #include <sys/param.h>
36 #include <sys/kernel.h>
38 #include <sys/module.h>
39 #include <sys/mutex.h>
41 #include <sys/sysctl.h>
42 #include <sys/systm.h>
43 #include <sys/taskqueue.h>
45 #include <machine/bus.h>
47 #include <dev/mmc/bridge.h>
48 #include <dev/mmc/mmcreg.h>
49 #include <dev/mmc/mmcvar.h>
50 #include <dev/mmc/mmcbrvar.h>
55 /*****************************************************************************
57 *****************************************************************************/
62 struct fsl_sdhc_softc {
66 bus_space_handle_t bsh;
69 struct resource *mem_resource;
71 struct resource *irq_resource;
75 bus_dma_tag_t dma_tag;
82 struct task card_detect_task;
83 struct callout card_detect_callout;
85 struct mmc_host mmc_host;
89 uint32_t platform_clock;
91 struct mmc_request *request;
99 #define FSL_SDHC_RESET_DELAY 50
101 #define FSL_SDHC_BASE_CLOCK_DIV (2)
102 #define FSL_SDHC_MAX_DIV (FSL_SDHC_BASE_CLOCK_DIV * 256 * 16)
103 #define FSL_SDHC_MIN_DIV (FSL_SDHC_BASE_CLOCK_DIV * 2)
104 #define FSL_SDHC_MAX_CLOCK (50000000)
106 #define FSL_SDHC_MAX_BLOCK_COUNT (65535)
107 #define FSL_SDHC_MAX_BLOCK_SIZE (4096)
109 #define FSL_SDHC_FIFO_BUF_SIZE (64) /* Water-mark level. */
110 #define FSL_SDHC_FIFO_BUF_WORDS (FSL_SDHC_FIFO_BUF_SIZE / 4)
112 #define FSL_SDHC_DMA_SEGMENT_SIZE (1024)
113 #define FSL_SDHC_DMA_ALIGNMENT (4)
114 #define FSL_SDHC_DMA_BLOCK_SIZE FSL_SDHC_MAX_BLOCK_SIZE
118 * Offsets of SD HC registers
122 SDHC_BLKATTR = 0x004,
124 SDHC_XFERTYP = 0x00c,
125 SDHC_CMDRSP0 = 0x010,
126 SDHC_CMDRSP1 = 0x014,
127 SDHC_CMDRSP2 = 0x018,
128 SDHC_CMDRSP3 = 0x01c,
129 SDHC_DATPORT = 0x020,
130 SDHC_PRSSTAT = 0x024,
133 SDHC_IRQSTAT = 0x030,
134 SDHC_IRQSTATEN = 0x034,
135 SDHC_IRQSIGEN = 0x038,
136 SDHC_AUTOC12ERR = 0x03c,
137 SDHC_HOSTCAPBLT = 0x040,
140 SDHC_HOSTVER = 0x0fc,
145 SYSCTL_INITA = 0x08000000,
146 SYSCTL_RSTD = 0x04000000,
147 SYSCTL_RSTC = 0x02000000,
148 SYSCTL_RSTA = 0x01000000,
149 SYSCTL_DTOCV = 0x000f0000,
150 SYSCTL_SDCLKFS = 0x0000ff00,
151 SYSCTL_DVS = 0x000000f0,
152 SYSCTL_PEREN = 0x00000004,
153 SYSCTL_HCKEN = 0x00000002,
154 SYSCTL_IPGEN = 0x00000001
157 #define HEX_LEFT_SHIFT(x) (4 * x)
159 SHIFT_DTOCV = HEX_LEFT_SHIFT(4),
160 SHIFT_SDCLKFS = HEX_LEFT_SHIFT(2),
161 SHIFT_DVS = HEX_LEFT_SHIFT(1)
165 PROCTL_WECRM = 0x04000000,
166 PROCTL_WECINS = 0x02000000,
167 PROCTL_WECINT = 0x01000000,
168 PROCTL_RWCTL = 0x00040000,
169 PROCTL_CREQ = 0x00020000,
170 PROCTL_SABGREQ = 0x00010000,
171 PROCTL_CDSS = 0x00000080,
172 PROCTL_CDTL = 0x00000040,
173 PROCTL_EMODE = 0x00000030,
174 PROCTL_D3CD = 0x00000008,
175 PROCTL_DTW = 0x00000006
185 PRSSTAT_DLSL = 0xff000000,
186 PRSSTAT_CLSL = 0x00800000,
187 PRSSTAT_WPSPL = 0x00080000,
188 PRSSTAT_CDPL = 0x00040000,
189 PRSSTAT_CINS = 0x00010000,
190 PRSSTAT_BREN = 0x00000800,
191 PRSSTAT_BWEN = 0x00000400,
192 PRSSTAT_RTA = 0x00000200,
193 PRSSTAT_WTA = 0x00000100,
194 PRSSTAT_SDOFF = 0x00000080,
195 PRSSTAT_PEROFF = 0x00000040,
196 PRSSTAT_HCKOFF = 0x00000020,
197 PRSSTAT_IPGOFF = 0x00000010,
198 PRSSTAT_DLA = 0x00000004,
199 PRSSTAT_CDIHB = 0x00000002,
200 PRSSTAT_CIHB = 0x00000001
205 IRQ_DMAE = 0x10000000,
206 IRQ_AC12E = 0x01000000,
207 IRQ_DEBE = 0x00400000,
208 IRQ_DCE = 0x00200000,
209 IRQ_DTOE = 0x00100000,
210 IRQ_CIE = 0x00080000,
211 IRQ_CEBE = 0x00040000,
212 IRQ_CCE = 0x00020000,
213 IRQ_CTOE = 0x00010000,
214 IRQ_CINT = 0x00000100,
215 IRQ_CRM = 0x00000080,
216 IRQ_CINS = 0x00000040,
217 IRQ_BRR = 0x00000020,
218 IRQ_BWR = 0x00000010,
219 IRQ_DINT = 0x00000008,
220 IRQ_BGE = 0x00000004,
226 IRQ_ERROR_DATA_MASK = IRQ_DMAE | IRQ_DEBE | IRQ_DCE | IRQ_DTOE,
227 IRQ_ERROR_CMD_MASK = IRQ_AC12E | IRQ_CIE | IRQ_CTOE | IRQ_CCE |
232 DCR_PRI = 0x0000c000,
233 DCR_SNOOP = 0x00000040,
234 DCR_AHB2MAG_BYPASS = 0x00000020,
235 DCR_RD_SAFE = 0x00000004,
236 DCR_RD_PFE = 0x00000002,
237 DCR_RD_PF_SIZE = 0x00000001
240 #define DCR_PRI_SHIFT (14)
243 XFERTYP_CMDINX = 0x3f000000,
244 XFERTYP_CMDTYP = 0x00c00000,
245 XFERTYP_DPSEL = 0x00200000,
246 XFERTYP_CICEN = 0x00100000,
247 XFERTYP_CCCEN = 0x00080000,
248 XFERTYP_RSPTYP = 0x00030000,
249 XFERTYP_MSBSEL = 0x00000020,
250 XFERTYP_DTDSEL = 0x00000010,
251 XFERTYP_AC12EN = 0x00000004,
252 XFERTYP_BCEN = 0x00000002,
253 XFERTYP_DMAEN = 0x00000001
256 #define CMDINX_SHIFT (24)
258 enum xfertyp_cmdtyp {
259 CMDTYP_NORMAL = 0x00000000,
260 CMDYTP_SUSPEND = 0x00400000,
261 CMDTYP_RESUME = 0x00800000,
262 CMDTYP_ABORT = 0x00c00000
265 enum xfertyp_rsptyp {
266 RSPTYP_NONE = 0x00000000,
267 RSPTYP_136 = 0x00010000,
268 RSPTYP_48 = 0x00020000,
269 RSPTYP_48_BUSY = 0x00030000
273 BLKATTR_BLKSZE = 0x00001fff,
274 BLKATTR_BLKCNT = 0xffff0000
276 #define BLKATTR_BLOCK_COUNT(x) (x << 16)
284 MASK_CLOCK_CONTROL = 0x0000ffff,
285 MASK_IRQ_ALL = IRQ_DMAE | IRQ_AC12E | IRQ_DEBE | IRQ_DCE |
286 IRQ_DTOE | IRQ_CIE | IRQ_CEBE | IRQ_CCE |
287 IRQ_CTOE | IRQ_CINT | IRQ_CRM | IRQ_CINS |
288 IRQ_BRR | IRQ_BWR | IRQ_DINT | IRQ_BGE |
297 #endif /* FSL_SDHC_H_ */