| @@ -1,382 +1,576 @@ | | | @@ -1,382 +1,576 @@ |
1 | /* $NetBSD: omap3_sdhc.c,v 1.15 2015/01/12 01:02:35 jakllsch Exp $ */ | | 1 | /* $NetBSD: omap3_sdhc.c,v 1.16 2015/04/14 18:45:25 bouyer Exp $ */ |
2 | /*- | | 2 | /*- |
3 | * Copyright (c) 2011 The NetBSD Foundation, Inc. | | 3 | * Copyright (c) 2011 The NetBSD Foundation, Inc. |
4 | * All rights reserved. | | 4 | * All rights reserved. |
5 | * | | 5 | * |
6 | * This code is derived from software contributed to The NetBSD Foundation | | 6 | * This code is derived from software contributed to The NetBSD Foundation |
7 | * by Matt Thomas of 3am Software Foundry. | | 7 | * by Matt Thomas of 3am Software Foundry. |
8 | * | | 8 | * |
9 | * Redistribution and use in source and binary forms, with or without | | 9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions | | 10 | * modification, are permitted provided that the following conditions |
11 | * are met: | | 11 | * are met: |
12 | * 1. Redistributions of source code must retain the above copyright | | 12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. | | 13 | * notice, this list of conditions and the following disclaimer. |
14 | * 2. Redistributions in binary form must reproduce the above copyright | | 14 | * 2. Redistributions in binary form must reproduce the above copyright |
15 | * notice, this list of conditions and the following disclaimer in the | | 15 | * notice, this list of conditions and the following disclaimer in the |
16 | * documentation and/or other materials provided with the distribution. | | 16 | * documentation and/or other materials provided with the distribution. |
17 | * | | 17 | * |
18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | | 18 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | | 19 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | | 20 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | | 21 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | | 22 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | | 23 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | | 24 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | | 25 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | | 26 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | | 27 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
28 | * POSSIBILITY OF SUCH DAMAGE. | | 28 | * POSSIBILITY OF SUCH DAMAGE. |
29 | */ | | 29 | */ |
30 | | | 30 | |
31 | #include <sys/cdefs.h> | | 31 | #include <sys/cdefs.h> |
32 | __KERNEL_RCSID(0, "$NetBSD: omap3_sdhc.c,v 1.15 2015/01/12 01:02:35 jakllsch Exp $"); | | 32 | __KERNEL_RCSID(0, "$NetBSD: omap3_sdhc.c,v 1.16 2015/04/14 18:45:25 bouyer Exp $"); |
33 | | | 33 | |
34 | #include "opt_omap.h" | | 34 | #include "opt_omap.h" |
| | | 35 | #include "edma.h" |
35 | | | 36 | |
36 | #include <sys/param.h> | | 37 | #include <sys/param.h> |
37 | #include <sys/systm.h> | | 38 | #include <sys/systm.h> |
38 | #include <sys/device.h> | | 39 | #include <sys/device.h> |
39 | #include <sys/kernel.h> | | 40 | #include <sys/kernel.h> |
40 | #include <sys/proc.h> | | 41 | #include <sys/proc.h> |
41 | #include <sys/queue.h> | | 42 | #include <sys/queue.h> |
42 | | | 43 | #include <sys/mutex.h> |
| | | 44 | #include <sys/condvar.h> |
43 | #include <sys/bus.h> | | 45 | #include <sys/bus.h> |
44 | | | 46 | |
45 | #include <arm/omap/omap2_obiovar.h> | | 47 | #include <arm/omap/omap2_obiovar.h> |
46 | #include <arm/omap/omap2_reg.h> | | 48 | #include <arm/omap/omap2_reg.h> |
47 | #include <arm/omap/omap3_sdmmcreg.h> | | 49 | #include <arm/omap/omap3_sdmmcreg.h> |
48 | | | 50 | |
49 | #ifdef TI_AM335X | | 51 | #ifdef TI_AM335X |
50 | # include <arm/omap/am335x_prcm.h> | | 52 | # include <arm/omap/am335x_prcm.h> |
51 | # include <arm/omap/omap2_prcm.h> | | 53 | # include <arm/omap/omap2_prcm.h> |
52 | #endif | | 54 | #endif |
53 | | | 55 | |
| | | 56 | #if NEDMA > 0 |
| | | 57 | # include <arm/omap/omap_edma.h> |
| | | 58 | #endif |
| | | 59 | |
54 | #include <dev/sdmmc/sdhcreg.h> | | 60 | #include <dev/sdmmc/sdhcreg.h> |
55 | #include <dev/sdmmc/sdhcvar.h> | | 61 | #include <dev/sdmmc/sdhcvar.h> |
| | | 62 | #include <dev/sdmmc/sdmmcvar.h> |
| | | 63 | |
| | | 64 | #ifdef TI_AM335X |
| | | 65 | #define EDMA_MAX_PARAMS 32 |
| | | 66 | #endif |
| | | 67 | |
| | | 68 | #ifdef OM3SDHC_DEBUG |
| | | 69 | int om3sdhcdebug = 1; |
| | | 70 | #define DPRINTF(n,s) do { if ((n) <= om3sdhcdebug) device_printf s; } while (0) |
| | | 71 | #else |
| | | 72 | #define DPRINTF(n,s) do {} while (0) |
| | | 73 | #endif |
| | | 74 | |
56 | | | 75 | |
57 | #define CLKD(kz) (sc->sc.sc_clkbase / (kz)) | | 76 | #define CLKD(kz) (sc->sc.sc_clkbase / (kz)) |
58 | | | 77 | |
59 | #define SDHC_READ(sc, reg) \ | | 78 | #define SDHC_READ(sc, reg) \ |
60 | bus_space_read_4((sc)->sc_bst, (sc)->sc_sdhc_bsh, (reg)) | | 79 | bus_space_read_4((sc)->sc_bst, (sc)->sc_sdhc_bsh, (reg)) |
61 | #define SDHC_WRITE(sc, reg, val) \ | | 80 | #define SDHC_WRITE(sc, reg, val) \ |
62 | bus_space_write_4((sc)->sc_bst, (sc)->sc_sdhc_bsh, (reg), (val)) | | 81 | bus_space_write_4((sc)->sc_bst, (sc)->sc_sdhc_bsh, (reg), (val)) |
63 | | | 82 | |
64 | static int obiosdhc_match(device_t, cfdata_t, void *); | | 83 | static int obiosdhc_match(device_t, cfdata_t, void *); |
65 | static void obiosdhc_attach(device_t, device_t, void *); | | 84 | static void obiosdhc_attach(device_t, device_t, void *); |
66 | static int obiosdhc_detach(device_t, int); | | 85 | static int obiosdhc_detach(device_t, int); |
67 | | | 86 | |
68 | static int obiosdhc_bus_clock(struct sdhc_softc *, int); | | 87 | static int obiosdhc_bus_clock(struct sdhc_softc *, int); |
69 | static int obiosdhc_rod(struct sdhc_softc *, int); | | 88 | static int obiosdhc_rod(struct sdhc_softc *, int); |
70 | static int obiosdhc_write_protect(struct sdhc_softc *); | | 89 | static int obiosdhc_write_protect(struct sdhc_softc *); |
71 | static int obiosdhc_card_detect(struct sdhc_softc *); | | 90 | static int obiosdhc_card_detect(struct sdhc_softc *); |
72 | | | 91 | |
73 | struct obiosdhc_softc { | | 92 | struct obiosdhc_softc { |
74 | struct sdhc_softc sc; | | 93 | struct sdhc_softc sc; |
75 | bus_space_tag_t sc_bst; | | 94 | bus_space_tag_t sc_bst; |
76 | bus_space_handle_t sc_bsh; | | 95 | bus_space_handle_t sc_bsh; |
77 | bus_space_handle_t sc_sdhc_bsh; | | 96 | bus_space_handle_t sc_sdhc_bsh; |
78 | struct sdhc_host *sc_hosts[1]; | | 97 | struct sdhc_host *sc_hosts[1]; |
79 | void *sc_ih; /* interrupt vectoring */ | | 98 | void *sc_ih; /* interrupt vectoring */ |
| | | 99 | |
| | | 100 | #if NEDMA > 0 |
| | | 101 | struct edma_channel *sc_edma_tx; |
| | | 102 | struct edma_channel *sc_edma_rx; |
| | | 103 | uint16_t sc_edma_param_tx[EDMA_MAX_PARAMS]; |
| | | 104 | uint16_t sc_edma_param_rx[EDMA_MAX_PARAMS]; |
| | | 105 | kmutex_t sc_edma_lock; |
| | | 106 | kcondvar_t sc_edma_cv; |
| | | 107 | bus_addr_t sc_edma_fifo; |
| | | 108 | bool sc_edma_pending; |
| | | 109 | #endif |
80 | }; | | 110 | }; |
81 | | | 111 | |
| | | 112 | #if NEDMA > 0 |
| | | 113 | static void obiosdhc_edma_init(struct obiosdhc_softc *, unsigned int); |
| | | 114 | static int obiosdhc_edma_xfer_data(struct sdhc_softc *, struct sdmmc_command *); |
| | | 115 | static void obiosdhc_edma_done(void *); |
| | | 116 | #endif |
| | | 117 | |
82 | #ifdef TI_AM335X | | 118 | #ifdef TI_AM335X |
83 | struct am335x_sdhc { | | 119 | struct am335x_sdhc { |
84 | const char *as_name; | | 120 | const char *as_name; |
85 | bus_addr_t as_base_addr; | | 121 | bus_addr_t as_base_addr; |
86 | int as_intr; | | 122 | int as_intr; |
87 | struct omap_module as_module; | | 123 | struct omap_module as_module; |
88 | }; | | 124 | }; |
89 | | | 125 | |
90 | static const struct am335x_sdhc am335x_sdhc[] = { | | 126 | static const struct am335x_sdhc am335x_sdhc[] = { |
91 | /* XXX All offset by 0x100 because of the am335x's mmc registers. */ | | 127 | /* XXX All offset by 0x100 because of the am335x's mmc registers. */ |
92 | { "MMCHS0", SDMMC1_BASE_TIAM335X, 64, { AM335X_PRCM_CM_PER, 0x3c } }, | | 128 | { "MMCHS0", SDMMC1_BASE_TIAM335X, 64, { AM335X_PRCM_CM_PER, 0x3c } }, |
93 | { "MMC1", SDMMC2_BASE_TIAM335X, 28, { AM335X_PRCM_CM_PER, 0xf4 } }, | | 129 | { "MMC1", SDMMC2_BASE_TIAM335X, 28, { AM335X_PRCM_CM_PER, 0xf4 } }, |
94 | { "MMCHS2", SDMMC3_BASE_TIAM335X, 29, { AM335X_PRCM_CM_WKUP, 0xf8 } }, | | 130 | { "MMCHS2", SDMMC3_BASE_TIAM335X, 29, { AM335X_PRCM_CM_WKUP, 0xf8 } }, |
95 | }; | | 131 | }; |
96 | #endif | | 132 | #endif |
97 | | | 133 | |
98 | CFATTACH_DECL_NEW(obiosdhc, sizeof(struct obiosdhc_softc), | | 134 | CFATTACH_DECL_NEW(obiosdhc, sizeof(struct obiosdhc_softc), |
99 | obiosdhc_match, obiosdhc_attach, obiosdhc_detach, NULL); | | 135 | obiosdhc_match, obiosdhc_attach, obiosdhc_detach, NULL); |
100 | | | 136 | |
101 | static int | | 137 | static int |
102 | obiosdhc_match(device_t parent, cfdata_t cf, void *aux) | | 138 | obiosdhc_match(device_t parent, cfdata_t cf, void *aux) |
103 | { | | 139 | { |
104 | #if defined(OMAP_3430) || defined(OMAP_3530) || defined(OMAP4) | | 140 | #if defined(OMAP_3430) || defined(OMAP_3530) || defined(OMAP4) |
105 | struct obio_attach_args * const oa = aux; | | 141 | struct obio_attach_args * const oa = aux; |
106 | #endif | | 142 | #endif |
107 | #ifdef TI_AM335X | | 143 | #ifdef TI_AM335X |
108 | struct obio_attach_args * const oa = aux; | | 144 | struct obio_attach_args * const oa = aux; |
109 | size_t i; | | 145 | size_t i; |
110 | #endif | | 146 | #endif |
111 | | | 147 | |
112 | #if defined(OMAP_3430) | | 148 | #if defined(OMAP_3430) |
113 | if (oa->obio_addr == SDMMC1_BASE_3430 | | 149 | if (oa->obio_addr == SDMMC1_BASE_3430 |
114 | || oa->obio_addr == SDMMC2_BASE_3430 | | 150 | || oa->obio_addr == SDMMC2_BASE_3430 |
115 | || oa->obio_addr == SDMMC3_BASE_3430) | | 151 | || oa->obio_addr == SDMMC3_BASE_3430) |
116 | return 1; | | 152 | return 1; |
117 | #elif defined(OMAP_3530) | | 153 | #elif defined(OMAP_3530) |
118 | if (oa->obio_addr == SDMMC1_BASE_3530 | | 154 | if (oa->obio_addr == SDMMC1_BASE_3530 |
119 | || oa->obio_addr == SDMMC2_BASE_3530 | | 155 | || oa->obio_addr == SDMMC2_BASE_3530 |
120 | || oa->obio_addr == SDMMC3_BASE_3530) | | 156 | || oa->obio_addr == SDMMC3_BASE_3530) |
121 | return 1; | | 157 | return 1; |
122 | #elif defined(OMAP4) || defined(OMAP5) | | 158 | #elif defined(OMAP4) || defined(OMAP5) |
123 | if (oa->obio_addr == SDMMC1_BASE_4430 | | 159 | if (oa->obio_addr == SDMMC1_BASE_4430 |
124 | || oa->obio_addr == SDMMC2_BASE_4430 | | 160 | || oa->obio_addr == SDMMC2_BASE_4430 |
125 | || oa->obio_addr == SDMMC3_BASE_4430 | | 161 | || oa->obio_addr == SDMMC3_BASE_4430 |
126 | || oa->obio_addr == SDMMC4_BASE_4430 | | 162 | || oa->obio_addr == SDMMC4_BASE_4430 |
127 | || oa->obio_addr == SDMMC5_BASE_4430) | | 163 | || oa->obio_addr == SDMMC5_BASE_4430) |
128 | return 1; | | 164 | return 1; |
129 | #endif | | 165 | #endif |
130 | | | 166 | |
131 | #ifdef TI_AM335X | | 167 | #ifdef TI_AM335X |
132 | for (i = 0; i < __arraycount(am335x_sdhc); i++) | | 168 | for (i = 0; i < __arraycount(am335x_sdhc); i++) |
133 | if ((oa->obio_addr == am335x_sdhc[i].as_base_addr) && | | 169 | if ((oa->obio_addr == am335x_sdhc[i].as_base_addr) && |
134 | (oa->obio_intr == am335x_sdhc[i].as_intr)) | | 170 | (oa->obio_intr == am335x_sdhc[i].as_intr)) |
135 | return 1; | | 171 | return 1; |
136 | #endif | | 172 | #endif |
137 | | | 173 | |
138 | return 0; | | 174 | return 0; |
139 | } | | 175 | } |
140 | | | 176 | |
141 | static void | | 177 | static void |
142 | obiosdhc_attach(device_t parent, device_t self, void *aux) | | 178 | obiosdhc_attach(device_t parent, device_t self, void *aux) |
143 | { | | 179 | { |
144 | struct obiosdhc_softc * const sc = device_private(self); | | 180 | struct obiosdhc_softc * const sc = device_private(self); |
145 | struct obio_attach_args * const oa = aux; | | 181 | struct obio_attach_args * const oa = aux; |
146 | prop_dictionary_t prop = device_properties(self); | | 182 | prop_dictionary_t prop = device_properties(self); |
147 | uint32_t clkd, stat; | | 183 | uint32_t clkd, stat; |
148 | int error, timo, clksft, n; | | 184 | int error, timo, clksft, n; |
149 | bool support8bit = false; | | 185 | bool support8bit = false; |
| | | 186 | const char *transfer_mode = "PIO"; |
150 | #ifdef TI_AM335X | | 187 | #ifdef TI_AM335X |
151 | size_t i; | | 188 | size_t i; |
152 | #endif | | 189 | #endif |
153 | | | 190 | |
154 | prop_dictionary_get_bool(prop, "8bit", &support8bit); | | 191 | prop_dictionary_get_bool(prop, "8bit", &support8bit); |
155 | | | 192 | |
156 | sc->sc.sc_dmat = oa->obio_dmat; | | 193 | sc->sc.sc_dmat = oa->obio_dmat; |
157 | sc->sc.sc_dev = self; | | 194 | sc->sc.sc_dev = self; |
158 | //sc->sc.sc_flags |= SDHC_FLAG_USE_DMA; | | | |
159 | sc->sc.sc_flags |= SDHC_FLAG_32BIT_ACCESS; | | 195 | sc->sc.sc_flags |= SDHC_FLAG_32BIT_ACCESS; |
160 | sc->sc.sc_flags |= SDHC_FLAG_NO_LED_ON; | | 196 | sc->sc.sc_flags |= SDHC_FLAG_NO_LED_ON; |
161 | sc->sc.sc_flags |= SDHC_FLAG_RSP136_CRC; | | 197 | sc->sc.sc_flags |= SDHC_FLAG_RSP136_CRC; |
162 | sc->sc.sc_flags |= SDHC_FLAG_SINGLE_ONLY; | | 198 | sc->sc.sc_flags |= SDHC_FLAG_SINGLE_ONLY; |
163 | if (support8bit) | | 199 | if (support8bit) |
164 | sc->sc.sc_flags |= SDHC_FLAG_8BIT_MODE; | | 200 | sc->sc.sc_flags |= SDHC_FLAG_8BIT_MODE; |
165 | #ifdef TI_AM335X | | 201 | #ifdef TI_AM335X |
166 | sc->sc.sc_flags |= SDHC_FLAG_WAIT_RESET; | | 202 | sc->sc.sc_flags |= SDHC_FLAG_WAIT_RESET; |
167 | sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY; | | 203 | sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY; |
168 | #endif | | 204 | #endif |
169 | #if defined(OMAP_3530) | | 205 | #if defined(OMAP_3530) |
170 | sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY; | | 206 | sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY; |
171 | #endif | | 207 | #endif |
172 | sc->sc.sc_host = sc->sc_hosts; | | 208 | sc->sc.sc_host = sc->sc_hosts; |
173 | sc->sc.sc_clkbase = 96000; /* 96MHZ */ | | 209 | sc->sc.sc_clkbase = 96000; /* 96MHZ */ |
174 | if (!prop_dictionary_get_uint32(prop, "clkmask", &sc->sc.sc_clkmsk)) | | 210 | if (!prop_dictionary_get_uint32(prop, "clkmask", &sc->sc.sc_clkmsk)) |
175 | sc->sc.sc_clkmsk = 0x0000ffc0; | | 211 | sc->sc.sc_clkmsk = 0x0000ffc0; |
176 | sc->sc.sc_vendor_rod = obiosdhc_rod; | | 212 | sc->sc.sc_vendor_rod = obiosdhc_rod; |
177 | sc->sc.sc_vendor_write_protect = obiosdhc_write_protect; | | 213 | sc->sc.sc_vendor_write_protect = obiosdhc_write_protect; |
178 | sc->sc.sc_vendor_card_detect = obiosdhc_card_detect; | | 214 | sc->sc.sc_vendor_card_detect = obiosdhc_card_detect; |
179 | sc->sc.sc_vendor_bus_clock = obiosdhc_bus_clock; | | 215 | sc->sc.sc_vendor_bus_clock = obiosdhc_bus_clock; |
180 | sc->sc_bst = oa->obio_iot; | | 216 | sc->sc_bst = oa->obio_iot; |
181 | | | 217 | |
182 | clksft = ffs(sc->sc.sc_clkmsk) - 1; | | 218 | clksft = ffs(sc->sc.sc_clkmsk) - 1; |
183 | | | 219 | |
184 | error = bus_space_map(sc->sc_bst, oa->obio_addr, oa->obio_size, 0, | | 220 | error = bus_space_map(sc->sc_bst, oa->obio_addr, oa->obio_size, 0, |
185 | &sc->sc_bsh); | | 221 | &sc->sc_bsh); |
186 | if (error) { | | 222 | if (error) { |
187 | aprint_error_dev(self, | | 223 | aprint_error_dev(self, |
188 | "can't map registers: %d\n", error); | | 224 | "can't map registers: %d\n", error); |
189 | return; | | 225 | return; |
190 | } | | 226 | } |
191 | | | 227 | |
192 | bus_space_subregion(sc->sc_bst, sc->sc_bsh, OMAP3_SDMMC_SDHC_OFFSET, | | 228 | bus_space_subregion(sc->sc_bst, sc->sc_bsh, OMAP3_SDMMC_SDHC_OFFSET, |
193 | OMAP3_SDMMC_SDHC_SIZE, &sc->sc_sdhc_bsh); | | 229 | OMAP3_SDMMC_SDHC_SIZE, &sc->sc_sdhc_bsh); |
194 | | | 230 | |
195 | aprint_naive(": SDHC controller\n"); | | 231 | #if NEDMA > 0 |
196 | aprint_normal(": SDHC controller\n"); | | 232 | if (oa->obio_edmabase != -1) { |
| | | 233 | mutex_init(&sc->sc_edma_lock, MUTEX_DEFAULT, IPL_SCHED); |
| | | 234 | cv_init(&sc->sc_edma_cv, "sdhcedma"); |
| | | 235 | sc->sc_edma_fifo = oa->obio_addr + |
| | | 236 | OMAP3_SDMMC_SDHC_OFFSET + SDHC_DATA; |
| | | 237 | obiosdhc_edma_init(sc, oa->obio_edmabase); |
| | | 238 | sc->sc.sc_flags |= SDHC_FLAG_USE_DMA; |
| | | 239 | sc->sc.sc_flags |= SDHC_FLAG_EXTERNAL_DMA; |
| | | 240 | sc->sc.sc_flags |= SDHC_FLAG_EXTDMA_DMAEN; |
| | | 241 | sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY; |
| | | 242 | sc->sc.sc_vendor_transfer_data_dma = obiosdhc_edma_xfer_data; |
| | | 243 | transfer_mode = "EDMA"; |
| | | 244 | } |
| | | 245 | #endif |
| | | 246 | |
| | | 247 | aprint_naive("\n"); |
| | | 248 | aprint_normal(": SDHC controller (%s)\n", transfer_mode); |
197 | | | 249 | |
198 | #ifdef TI_AM335X | | 250 | #ifdef TI_AM335X |
199 | /* XXX Not really AM335X-specific. */ | | 251 | /* XXX Not really AM335X-specific. */ |
200 | for (i = 0; i < __arraycount(am335x_sdhc); i++) | | 252 | for (i = 0; i < __arraycount(am335x_sdhc); i++) |
201 | if ((oa->obio_addr == am335x_sdhc[i].as_base_addr) && | | 253 | if ((oa->obio_addr == am335x_sdhc[i].as_base_addr) && |
202 | (oa->obio_intr == am335x_sdhc[i].as_intr)) { | | 254 | (oa->obio_intr == am335x_sdhc[i].as_intr)) { |
203 | prcm_module_enable(&am335x_sdhc[i].as_module); | | 255 | prcm_module_enable(&am335x_sdhc[i].as_module); |
204 | break; | | 256 | break; |
205 | } | | 257 | } |
206 | KASSERT(i < __arraycount(am335x_sdhc)); | | 258 | KASSERT(i < __arraycount(am335x_sdhc)); |
207 | #endif | | 259 | #endif |
208 | | | 260 | |
209 | /* XXXXXX: Turn-on regulator via I2C. */ | | 261 | /* XXXXXX: Turn-on regulator via I2C. */ |
210 | /* XXXXXX: And enable ICLOCK/FCLOCK. */ | | 262 | /* XXXXXX: And enable ICLOCK/FCLOCK. */ |
211 | | | 263 | |
212 | /* MMCHS Soft reset */ | | 264 | /* MMCHS Soft reset */ |
213 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSCONFIG, | | 265 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSCONFIG, |
214 | SYSCONFIG_SOFTRESET); | | 266 | SYSCONFIG_SOFTRESET); |
215 | timo = 3000000; /* XXXX 3 sec. */ | | 267 | timo = 3000000; /* XXXX 3 sec. */ |
216 | while (timo--) { | | 268 | while (timo--) { |
217 | if (bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSSTATUS) & | | 269 | if (bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSSTATUS) & |
218 | SYSSTATUS_RESETDONE) | | 270 | SYSSTATUS_RESETDONE) |
219 | break; | | 271 | break; |
220 | delay(1); | | 272 | delay(1); |
221 | } | | 273 | } |
222 | if (timo == 0) | | 274 | if (timo == 0) |
223 | aprint_error_dev(self, "Soft reset timeout\n"); | | 275 | aprint_error_dev(self, "Soft reset timeout\n"); |
224 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSCONFIG, | | 276 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_SYSCONFIG, |
225 | SYSCONFIG_ENAWAKEUP | SYSCONFIG_AUTOIDLE | SYSCONFIG_SIDLEMODE_AUTO | | | 277 | SYSCONFIG_ENAWAKEUP | SYSCONFIG_AUTOIDLE | SYSCONFIG_SIDLEMODE_AUTO | |
226 | SYSCONFIG_CLOCKACTIVITY_FCLK | SYSCONFIG_CLOCKACTIVITY_ICLK); | | 278 | SYSCONFIG_CLOCKACTIVITY_FCLK | SYSCONFIG_CLOCKACTIVITY_ICLK); |
227 | | | 279 | |
228 | sc->sc_ih = intr_establish(oa->obio_intr, IPL_VM, IST_LEVEL, | | 280 | sc->sc_ih = intr_establish(oa->obio_intr, IPL_VM, IST_LEVEL, |
229 | sdhc_intr, &sc->sc); | | 281 | sdhc_intr, &sc->sc); |
230 | if (sc->sc_ih == NULL) { | | 282 | if (sc->sc_ih == NULL) { |
231 | aprint_error_dev(self, "failed to establish interrupt %d\n", | | 283 | aprint_error_dev(self, "failed to establish interrupt %d\n", |
232 | oa->obio_intr); | | 284 | oa->obio_intr); |
233 | goto fail; | | 285 | goto fail; |
234 | } | | 286 | } |
235 | | | 287 | |
236 | error = sdhc_host_found(&sc->sc, sc->sc_bst, sc->sc_sdhc_bsh, | | 288 | error = sdhc_host_found(&sc->sc, sc->sc_bst, sc->sc_sdhc_bsh, |
237 | oa->obio_size - OMAP3_SDMMC_SDHC_OFFSET); | | 289 | oa->obio_size - OMAP3_SDMMC_SDHC_OFFSET); |
238 | if (error != 0) { | | 290 | if (error != 0) { |
239 | aprint_error_dev(self, "couldn't initialize host, error=%d\n", | | 291 | aprint_error_dev(self, "couldn't initialize host, error=%d\n", |
240 | error); | | 292 | error); |
241 | goto fail; | | 293 | goto fail; |
242 | } | | 294 | } |
243 | | | 295 | |
244 | /* Set SDVS 1.8v and DTW 1bit mode */ | | 296 | /* Set SDVS 1.8v and DTW 1bit mode */ |
245 | SDHC_WRITE(sc, SDHC_HOST_CTL, | | 297 | SDHC_WRITE(sc, SDHC_HOST_CTL, |
246 | SDHC_VOLTAGE_1_8V << (SDHC_VOLTAGE_SHIFT + 8)); | | 298 | SDHC_VOLTAGE_1_8V << (SDHC_VOLTAGE_SHIFT + 8)); |
247 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, | | 299 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, |
248 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) | CON_OD); | | 300 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) | CON_OD); |
249 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 301 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
250 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_INTCLK_ENABLE | | | 302 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_INTCLK_ENABLE | |
251 | SDHC_SDCLK_ENABLE); | | 303 | SDHC_SDCLK_ENABLE); |
252 | SDHC_WRITE(sc, SDHC_HOST_CTL, | | 304 | SDHC_WRITE(sc, SDHC_HOST_CTL, |
253 | SDHC_READ(sc, SDHC_HOST_CTL) | SDHC_BUS_POWER << 8); | | 305 | SDHC_READ(sc, SDHC_HOST_CTL) | SDHC_BUS_POWER << 8); |
254 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 306 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
255 | SDHC_READ(sc, SDHC_CLOCK_CTL) | CLKD(150) << clksft); | | 307 | SDHC_READ(sc, SDHC_CLOCK_CTL) | CLKD(150) << clksft); |
256 | | | 308 | |
257 | /* | | 309 | /* |
258 | * 22.6.1.3.1.5 MMCHS Controller INIT Procedure Start | | 310 | * 22.6.1.3.1.5 MMCHS Controller INIT Procedure Start |
259 | * from 'OMAP35x Applications Processor Technical Reference Manual'. | | 311 | * from 'OMAP35x Applications Processor Technical Reference Manual'. |
260 | * | | 312 | * |
261 | * During the INIT procedure, the MMCHS controller generates 80 clock | | 313 | * During the INIT procedure, the MMCHS controller generates 80 clock |
262 | * periods. In order to keep the 1ms gap, the MMCHS controller should | | 314 | * periods. In order to keep the 1ms gap, the MMCHS controller should |
263 | * be configured to generate a clock whose frequency is smaller or | | 315 | * be configured to generate a clock whose frequency is smaller or |
264 | * equal to 80 KHz. | | 316 | * equal to 80 KHz. |
265 | */ | | 317 | */ |
266 | | | 318 | |
267 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 319 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
268 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~SDHC_SDCLK_ENABLE); | | 320 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~SDHC_SDCLK_ENABLE); |
269 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 321 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
270 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~sc->sc.sc_clkmsk); | | 322 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~sc->sc.sc_clkmsk); |
271 | clkd = CLKD(80); | | 323 | clkd = CLKD(80); |
272 | n = 1; | | 324 | n = 1; |
273 | while (clkd & ~(sc->sc.sc_clkmsk >> clksft)) { | | 325 | while (clkd & ~(sc->sc.sc_clkmsk >> clksft)) { |
274 | clkd >>= 1; | | 326 | clkd >>= 1; |
275 | n <<= 1; | | 327 | n <<= 1; |
276 | } | | 328 | } |
277 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 329 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
278 | SDHC_READ(sc, SDHC_CLOCK_CTL) | (clkd << clksft)); | | 330 | SDHC_READ(sc, SDHC_CLOCK_CTL) | (clkd << clksft)); |
279 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 331 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
280 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_SDCLK_ENABLE); | | 332 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_SDCLK_ENABLE); |
281 | | | 333 | |
282 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, | | 334 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, |
283 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) | CON_INIT); | | 335 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) | CON_INIT); |
284 | for (; n > 0; n--) { | | 336 | for (; n > 0; n--) { |
285 | SDHC_WRITE(sc, SDHC_TRANSFER_MODE, 0x00000000); | | 337 | SDHC_WRITE(sc, SDHC_TRANSFER_MODE, 0x00000000); |
286 | timo = 3000000; /* XXXX 3 sec. */ | | 338 | timo = 3000000; /* XXXX 3 sec. */ |
287 | stat = 0; | | 339 | stat = 0; |
288 | while (!(stat & SDHC_COMMAND_COMPLETE)) { | | 340 | while (!(stat & SDHC_COMMAND_COMPLETE)) { |
289 | stat = SDHC_READ(sc, SDHC_NINTR_STATUS); | | 341 | stat = SDHC_READ(sc, SDHC_NINTR_STATUS); |
290 | if (--timo == 0) | | 342 | if (--timo == 0) |
291 | break; | | 343 | break; |
292 | delay(1); | | 344 | delay(1); |
293 | } | | 345 | } |
294 | if (timo == 0) { | | 346 | if (timo == 0) { |
295 | aprint_error_dev(self, "INIT Procedure timeout\n"); | | 347 | aprint_error_dev(self, "INIT Procedure timeout\n"); |
296 | break; | | 348 | break; |
297 | } | | 349 | } |
298 | SDHC_WRITE(sc, SDHC_NINTR_STATUS, stat); | | 350 | SDHC_WRITE(sc, SDHC_NINTR_STATUS, stat); |
299 | } | | 351 | } |
300 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, | | 352 | bus_space_write_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON, |
301 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) & ~CON_INIT); | | 353 | bus_space_read_4(sc->sc_bst, sc->sc_bsh, MMCHS_CON) & ~CON_INIT); |
302 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 354 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
303 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~SDHC_SDCLK_ENABLE); | | 355 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~SDHC_SDCLK_ENABLE); |
304 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 356 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
305 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~sc->sc.sc_clkmsk); | | 357 | SDHC_READ(sc, SDHC_CLOCK_CTL) & ~sc->sc.sc_clkmsk); |
306 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 358 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
307 | SDHC_READ(sc, SDHC_CLOCK_CTL) | CLKD(150) << clksft); | | 359 | SDHC_READ(sc, SDHC_CLOCK_CTL) | CLKD(150) << clksft); |
308 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, | | 360 | SDHC_WRITE(sc, SDHC_CLOCK_CTL, |
309 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_SDCLK_ENABLE); | | 361 | SDHC_READ(sc, SDHC_CLOCK_CTL) | SDHC_SDCLK_ENABLE); |
310 | | | 362 | |
311 | return; | | 363 | return; |
312 | | | 364 | |
313 | fail: | | 365 | fail: |
314 | if (sc->sc_ih) { | | 366 | if (sc->sc_ih) { |
315 | intr_disestablish(sc->sc_ih); | | 367 | intr_disestablish(sc->sc_ih); |
316 | sc->sc_ih = NULL; | | 368 | sc->sc_ih = NULL; |
317 | } | | 369 | } |
318 | bus_space_unmap(sc->sc_bst, sc->sc_bsh, oa->obio_size); | | 370 | bus_space_unmap(sc->sc_bst, sc->sc_bsh, oa->obio_size); |
319 | } | | 371 | } |
320 | | | 372 | |
321 | static int | | 373 | static int |
322 | obiosdhc_detach(device_t self, int flags) | | 374 | obiosdhc_detach(device_t self, int flags) |
323 | { | | 375 | { |
324 | // struct obiosdhc_softc *sc = device_private(self); | | 376 | // struct obiosdhc_softc *sc = device_private(self); |
325 | int error; | | 377 | int error; |
326 | | | 378 | |
327 | error = config_detach_children(self, flags); | | 379 | error = config_detach_children(self, flags); |
328 | | | 380 | |
329 | /* XXXXXX: Regurator turn-off via I2C. */ | | 381 | /* XXXXXX: Regurator turn-off via I2C. */ |
330 | /* XXXXXX: And disable ICLOCK/FCLOCK. */ | | 382 | /* XXXXXX: And disable ICLOCK/FCLOCK. */ |
331 | | | 383 | |
332 | return error; | | 384 | return error; |
333 | } | | 385 | } |
334 | | | 386 | |
335 | static int | | 387 | static int |
336 | obiosdhc_rod(struct sdhc_softc *sc, int on) | | 388 | obiosdhc_rod(struct sdhc_softc *sc, int on) |
337 | { | | 389 | { |
338 | struct obiosdhc_softc *osc = (struct obiosdhc_softc *)sc; | | 390 | struct obiosdhc_softc *osc = (struct obiosdhc_softc *)sc; |
339 | uint32_t con; | | 391 | uint32_t con; |
340 | | | 392 | |
341 | con = bus_space_read_4(osc->sc_bst, osc->sc_bsh, MMCHS_CON); | | 393 | con = bus_space_read_4(osc->sc_bst, osc->sc_bsh, MMCHS_CON); |
342 | if (on) | | 394 | if (on) |
343 | con |= CON_OD; | | 395 | con |= CON_OD; |
344 | else | | 396 | else |
345 | con &= ~CON_OD; | | 397 | con &= ~CON_OD; |
346 | bus_space_write_4(osc->sc_bst, osc->sc_bsh, MMCHS_CON, con); | | 398 | bus_space_write_4(osc->sc_bst, osc->sc_bsh, MMCHS_CON, con); |
347 | | | 399 | |
348 | return 0; | | 400 | return 0; |
349 | } | | 401 | } |
350 | | | 402 | |
351 | static int | | 403 | static int |
352 | obiosdhc_write_protect(struct sdhc_softc *sc) | | 404 | obiosdhc_write_protect(struct sdhc_softc *sc) |
353 | { | | 405 | { |
354 | | | 406 | |
355 | /* Maybe board dependent, using GPIO. Get GPIO-pin from prop? */ | | 407 | /* Maybe board dependent, using GPIO. Get GPIO-pin from prop? */ |
356 | return 0; /* XXXXXXX */ | | 408 | return 0; /* XXXXXXX */ |
357 | } | | 409 | } |
358 | | | 410 | |
359 | static int | | 411 | static int |
360 | obiosdhc_card_detect(struct sdhc_softc *sc) | | 412 | obiosdhc_card_detect(struct sdhc_softc *sc) |
361 | { | | 413 | { |
362 | | | 414 | |
363 | /* Maybe board dependent, using GPIO. Get GPIO-pin from prop? */ | | 415 | /* Maybe board dependent, using GPIO. Get GPIO-pin from prop? */ |
364 | return 1; /* XXXXXXXX */ | | 416 | return 1; /* XXXXXXXX */ |
365 | } | | 417 | } |
366 | | | 418 | |
367 | static int | | 419 | static int |
368 | obiosdhc_bus_clock(struct sdhc_softc *sc, int clk) | | 420 | obiosdhc_bus_clock(struct sdhc_softc *sc, int clk) |
369 | { | | 421 | { |
370 | struct obiosdhc_softc *osc = (struct obiosdhc_softc *)sc; | | 422 | struct obiosdhc_softc *osc = (struct obiosdhc_softc *)sc; |
371 | uint32_t ctl; | | 423 | uint32_t ctl; |
372 | | | 424 | |
373 | ctl = bus_space_read_4(osc->sc_bst, osc->sc_bsh, MMCHS_SYSCTL); | | 425 | ctl = bus_space_read_4(osc->sc_bst, osc->sc_bsh, MMCHS_SYSCTL); |
374 | if (clk == 0) { | | 426 | if (clk == 0) { |
375 | ctl &= ~SYSCTL_CEN; | | 427 | ctl &= ~SYSCTL_CEN; |
376 | } else { | | 428 | } else { |
377 | ctl |= SYSCTL_CEN; | | 429 | ctl |= SYSCTL_CEN; |
378 | } | | 430 | } |
379 | bus_space_write_4(osc->sc_bst, osc->sc_bsh, MMCHS_SYSCTL, ctl); | | 431 | bus_space_write_4(osc->sc_bst, osc->sc_bsh, MMCHS_SYSCTL, ctl); |
380 | | | 432 | |
381 | return 0; | | 433 | return 0; |
382 | } | | 434 | } |
| | | 435 | |
| | | 436 | #if NEDMA > 0 |
| | | 437 | static void |
| | | 438 | obiosdhc_edma_init(struct obiosdhc_softc *sc, unsigned int edmabase) |
| | | 439 | { |
| | | 440 | int i; |
| | | 441 | |
| | | 442 | /* Request tx and rx DMA channels */ |
| | | 443 | sc->sc_edma_tx = edma_channel_alloc(EDMA_TYPE_DMA, edmabase + 0, |
| | | 444 | obiosdhc_edma_done, sc); |
| | | 445 | KASSERT(sc->sc_edma_tx != NULL); |
| | | 446 | sc->sc_edma_rx = edma_channel_alloc(EDMA_TYPE_DMA, edmabase + 1, |
| | | 447 | obiosdhc_edma_done, sc); |
| | | 448 | KASSERT(sc->sc_edma_rx != NULL); |
| | | 449 | |
| | | 450 | device_printf(sc->sc.sc_dev, "EDMA tx channel %d, rx channel %d\n", |
| | | 451 | edma_channel_index(sc->sc_edma_tx), |
| | | 452 | edma_channel_index(sc->sc_edma_rx)); |
| | | 453 | |
| | | 454 | /* Allocate some PaRAM pages */ |
| | | 455 | for (i = 0; i < __arraycount(sc->sc_edma_param_tx); i++) { |
| | | 456 | sc->sc_edma_param_tx[i] = edma_param_alloc(sc->sc_edma_tx); |
| | | 457 | KASSERT(sc->sc_edma_param_tx[i] != 0xffff); |
| | | 458 | } |
| | | 459 | for (i = 0; i < __arraycount(sc->sc_edma_param_rx); i++) { |
| | | 460 | sc->sc_edma_param_rx[i] = edma_param_alloc(sc->sc_edma_rx); |
| | | 461 | KASSERT(sc->sc_edma_param_rx[i] != 0xffff); |
| | | 462 | } |
| | | 463 | |
| | | 464 | return; |
| | | 465 | } |
| | | 466 | |
| | | 467 | static int |
| | | 468 | obiosdhc_edma_xfer_data(struct sdhc_softc *sdhc_sc, struct sdmmc_command *cmd) |
| | | 469 | { |
| | | 470 | struct obiosdhc_softc *sc = device_private(sdhc_sc->sc_dev); |
| | | 471 | struct edma_channel *edma; |
| | | 472 | uint16_t *edma_param; |
| | | 473 | struct edma_param ep; |
| | | 474 | size_t seg; |
| | | 475 | int error; |
| | | 476 | int blksize = MIN(cmd->c_datalen, cmd->c_blklen); |
| | | 477 | |
| | | 478 | edma = ISSET(cmd->c_flags, SCF_CMD_READ) ? |
| | | 479 | sc->sc_edma_rx : sc->sc_edma_tx; |
| | | 480 | edma_param = ISSET(cmd->c_flags, SCF_CMD_READ) ? |
| | | 481 | sc->sc_edma_param_rx : sc->sc_edma_param_tx; |
| | | 482 | |
| | | 483 | DPRINTF(1, (sc->sc.sc_dev, "edma xfer: nsegs=%d ch# %d\n", |
| | | 484 | cmd->c_dmamap->dm_nsegs, edma_channel_index(edma))); |
| | | 485 | |
| | | 486 | if (cmd->c_dmamap->dm_nsegs > EDMA_MAX_PARAMS) { |
| | | 487 | return ENOMEM; |
| | | 488 | } |
| | | 489 | |
| | | 490 | for (seg = 0; seg < cmd->c_dmamap->dm_nsegs; seg++) { |
| | | 491 | ep.ep_opt = __SHIFTIN(2, EDMA_PARAM_OPT_FWID) /* 32-bit */; |
| | | 492 | ep.ep_opt |= __SHIFTIN(edma_channel_index(edma), |
| | | 493 | EDMA_PARAM_OPT_TCC); |
| | | 494 | if (seg == cmd->c_dmamap->dm_nsegs - 1) { |
| | | 495 | ep.ep_opt |= EDMA_PARAM_OPT_TCINTEN; |
| | | 496 | ep.ep_link = 0xffff; |
| | | 497 | } else { |
| | | 498 | ep.ep_link = EDMA_PARAM_BASE(edma_param[seg+1]); |
| | | 499 | } |
| | | 500 | if (ISSET(cmd->c_flags, SCF_CMD_READ)) { |
| | | 501 | ep.ep_opt |= EDMA_PARAM_OPT_SAM; |
| | | 502 | ep.ep_src = sc->sc_edma_fifo; |
| | | 503 | ep.ep_dst = cmd->c_dmamap->dm_segs[seg].ds_addr; |
| | | 504 | } else { |
| | | 505 | ep.ep_opt |= EDMA_PARAM_OPT_DAM; |
| | | 506 | ep.ep_src = cmd->c_dmamap->dm_segs[seg].ds_addr; |
| | | 507 | ep.ep_dst = sc->sc_edma_fifo; |
| | | 508 | } |
| | | 509 | |
| | | 510 | KASSERT(cmd->c_dmamap->dm_segs[seg].ds_len <= 65536 * 4); |
| | | 511 | |
| | | 512 | /* |
| | | 513 | * For unknown reason, the A-DMA transfers never completes for |
| | | 514 | * transfers larger than 64 butes. So use a AB transfer, |
| | | 515 | * with a 64 bytes A len |
| | | 516 | */ |
| | | 517 | ep.ep_bcntrld = 0; /* not used for AB-synchronous mode */ |
| | | 518 | ep.ep_opt |= EDMA_PARAM_OPT_SYNCDIM; |
| | | 519 | ep.ep_acnt = min(cmd->c_dmamap->dm_segs[seg].ds_len, 64); |
| | | 520 | ep.ep_bcnt = min(cmd->c_dmamap->dm_segs[seg].ds_len, blksize) / |
| | | 521 | ep.ep_acnt; |
| | | 522 | ep.ep_ccnt = cmd->c_dmamap->dm_segs[seg].ds_len / |
| | | 523 | (ep.ep_acnt * ep.ep_bcnt); |
| | | 524 | ep.ep_srcbidx = ep.ep_dstbidx = 0; |
| | | 525 | ep.ep_srccidx = ep.ep_dstcidx = 0; |
| | | 526 | if (ISSET(cmd->c_flags, SCF_CMD_READ)) { |
| | | 527 | ep.ep_dstbidx = ep.ep_acnt; |
| | | 528 | ep.ep_dstcidx = ep.ep_acnt * ep.ep_bcnt; |
| | | 529 | } else { |
| | | 530 | ep.ep_srcbidx = ep.ep_acnt; |
| | | 531 | ep.ep_srccidx = ep.ep_acnt * ep.ep_bcnt; |
| | | 532 | } |
| | | 533 | |
| | | 534 | edma_set_param(edma, edma_param[seg], &ep); |
| | | 535 | #ifdef OM3SDHC_DEBUG |
| | | 536 | if (om3sdhcdebug >= 1) { |
| | | 537 | printf("target OPT: %08x\n", ep.ep_opt); |
| | | 538 | edma_dump_param(edma, edma_param[seg]); |
| | | 539 | } |
| | | 540 | #endif |
| | | 541 | } |
| | | 542 | |
| | | 543 | mutex_enter(&sc->sc_edma_lock); |
| | | 544 | error = 0; |
| | | 545 | sc->sc_edma_pending = true; |
| | | 546 | edma_transfer_enable(edma, edma_param[0]); |
| | | 547 | while (sc->sc_edma_pending) { |
| | | 548 | error = cv_timedwait(&sc->sc_edma_cv, &sc->sc_edma_lock, hz*10); |
| | | 549 | if (error == EWOULDBLOCK) { |
| | | 550 | device_printf(sc->sc.sc_dev, "transfer timeout!\n"); |
| | | 551 | edma_dump(edma); |
| | | 552 | edma_dump_param(edma, edma_param[0]); |
| | | 553 | edma_halt(edma); |
| | | 554 | sc->sc_edma_pending = false; |
| | | 555 | error = ETIMEDOUT; |
| | | 556 | break; |
| | | 557 | } |
| | | 558 | } |
| | | 559 | edma_halt(edma); |
| | | 560 | mutex_exit(&sc->sc_edma_lock); |
| | | 561 | |
| | | 562 | return error; |
| | | 563 | } |
| | | 564 | |
| | | 565 | static void |
| | | 566 | obiosdhc_edma_done(void *priv) |
| | | 567 | { |
| | | 568 | struct obiosdhc_softc *sc = priv; |
| | | 569 | |
| | | 570 | mutex_enter(&sc->sc_edma_lock); |
| | | 571 | KASSERT(sc->sc_edma_pending == true); |
| | | 572 | sc->sc_edma_pending = false; |
| | | 573 | cv_broadcast(&sc->sc_edma_cv); |
| | | 574 | mutex_exit(&sc->sc_edma_lock); |
| | | 575 | } |
| | | 576 | #endif |