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de941241 SG |
1 | /* |
2 | * (C) Copyright 2008 | |
3 | * Texas Instruments, <www.ti.com> | |
4 | * Sukumar Ghorai <s-ghorai@ti.com> | |
5 | * | |
6 | * See file CREDITS for list of people who contributed to this | |
7 | * project. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or | |
10 | * modify it under the terms of the GNU General Public License as | |
11 | * published by the Free Software Foundation's version 2 of | |
12 | * the License. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
22 | * MA 02111-1307 USA | |
23 | */ | |
24 | ||
25 | #include <config.h> | |
26 | #include <common.h> | |
93bfd616 | 27 | #include <malloc.h> |
f0d53e88 | 28 | #include <memalign.h> |
de941241 SG |
29 | #include <mmc.h> |
30 | #include <part.h> | |
31 | #include <i2c.h> | |
339d5789 | 32 | #if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX) |
cb199102 | 33 | #include <palmas.h> |
339d5789 | 34 | #endif |
de941241 SG |
35 | #include <asm/io.h> |
36 | #include <asm/arch/mmc_host_def.h> | |
33c1d77f KVA |
37 | #ifdef CONFIG_OMAP54XX |
38 | #include <asm/arch/mux_dra7xx.h> | |
39 | #include <asm/arch/dra7xx_iodelay.h> | |
40 | #endif | |
3b68939f RQ |
41 | #if !defined(CONFIG_SOC_KEYSTONE) |
42 | #include <asm/gpio.h> | |
96e0e7b3 | 43 | #include <asm/arch/sys_proto.h> |
3b68939f | 44 | #endif |
2a48b3a2 TR |
45 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
46 | #include <asm/arch/mux.h> | |
47 | #endif | |
a9d6a7e2 M |
48 | #include <dm.h> |
49 | ||
50 | DECLARE_GLOBAL_DATA_PTR; | |
de941241 | 51 | |
ab769f22 PA |
52 | /* simplify defines to OMAP_HSMMC_USE_GPIO */ |
53 | #if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \ | |
54 | (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT)) | |
55 | #define OMAP_HSMMC_USE_GPIO | |
56 | #else | |
57 | #undef OMAP_HSMMC_USE_GPIO | |
58 | #endif | |
59 | ||
25c719e2 GI |
60 | /* common definitions for all OMAPs */ |
61 | #define SYSCTL_SRC (1 << 25) | |
62 | #define SYSCTL_SRD (1 << 26) | |
63 | ||
33c1d77f KVA |
64 | #ifdef CONFIG_IODELAY_RECALIBRATION |
65 | struct omap_hsmmc_pinctrl_state { | |
66 | struct pad_conf_entry *padconf; | |
67 | int npads; | |
68 | struct iodelay_cfg_entry *iodelay; | |
69 | int niodelays; | |
70 | }; | |
71 | #endif | |
72 | ||
cc22b0c0 NK |
73 | struct omap_hsmmc_data { |
74 | struct hsmmc *base_addr; | |
c4d660d4 | 75 | #if !CONFIG_IS_ENABLED(DM_MMC) |
93bfd616 | 76 | struct mmc_config cfg; |
3d673ffc | 77 | #endif |
48a2f114 | 78 | uint bus_width; |
5baf543e | 79 | uint clock; |
ab769f22 | 80 | #ifdef OMAP_HSMMC_USE_GPIO |
c4d660d4 | 81 | #if CONFIG_IS_ENABLED(DM_MMC) |
a9d6a7e2 M |
82 | struct gpio_desc cd_gpio; /* Change Detect GPIO */ |
83 | struct gpio_desc wp_gpio; /* Write Protect GPIO */ | |
84 | bool cd_inverted; | |
85 | #else | |
e874d5b0 | 86 | int cd_gpio; |
e3913f56 | 87 | int wp_gpio; |
ab769f22 | 88 | #endif |
b5944817 KVA |
89 | #endif |
90 | #if CONFIG_IS_ENABLED(DM_MMC) | |
91 | uint iov; | |
8fc238bf | 92 | enum bus_mode mode; |
a9d6a7e2 | 93 | #endif |
f0d53e88 KVA |
94 | u8 controller_flags; |
95 | #ifndef CONFIG_OMAP34XX | |
96 | struct omap_hsmmc_adma_desc *adma_desc_table; | |
97 | uint desc_slot; | |
98 | #endif | |
2d28eeda | 99 | const char *hw_rev; |
33c1d77f KVA |
100 | #ifdef CONFIG_IODELAY_RECALIBRATION |
101 | struct omap_hsmmc_pinctrl_state *default_pinctrl_state; | |
102 | struct omap_hsmmc_pinctrl_state *hs_pinctrl_state; | |
103 | struct omap_hsmmc_pinctrl_state *hs200_1_8v_pinctrl_state; | |
104 | struct omap_hsmmc_pinctrl_state *ddr_1_8v_pinctrl_state; | |
105 | struct omap_hsmmc_pinctrl_state *sdr12_pinctrl_state; | |
106 | struct omap_hsmmc_pinctrl_state *sdr25_pinctrl_state; | |
107 | struct omap_hsmmc_pinctrl_state *ddr50_pinctrl_state; | |
108 | struct omap_hsmmc_pinctrl_state *sdr50_pinctrl_state; | |
109 | struct omap_hsmmc_pinctrl_state *sdr104_pinctrl_state; | |
110 | #endif | |
111 | }; | |
112 | ||
113 | struct omap_mmc_of_data { | |
114 | u8 controller_flags; | |
f0d53e88 KVA |
115 | }; |
116 | ||
117 | #ifndef CONFIG_OMAP34XX | |
118 | struct omap_hsmmc_adma_desc { | |
119 | u8 attr; | |
120 | u8 reserved; | |
121 | u16 len; | |
122 | u32 addr; | |
cc22b0c0 NK |
123 | }; |
124 | ||
f0d53e88 KVA |
125 | #define ADMA_MAX_LEN 63488 |
126 | ||
127 | /* Decriptor table defines */ | |
128 | #define ADMA_DESC_ATTR_VALID BIT(0) | |
129 | #define ADMA_DESC_ATTR_END BIT(1) | |
130 | #define ADMA_DESC_ATTR_INT BIT(2) | |
131 | #define ADMA_DESC_ATTR_ACT1 BIT(4) | |
132 | #define ADMA_DESC_ATTR_ACT2 BIT(5) | |
133 | ||
134 | #define ADMA_DESC_TRANSFER_DATA ADMA_DESC_ATTR_ACT2 | |
135 | #define ADMA_DESC_LINK_DESC (ADMA_DESC_ATTR_ACT1 | ADMA_DESC_ATTR_ACT2) | |
136 | #endif | |
137 | ||
eb9a28f6 NM |
138 | /* If we fail after 1 second wait, something is really bad */ |
139 | #define MAX_RETRY_MS 1000 | |
a4efd737 | 140 | #define MMC_TIMEOUT_MS 20 |
eb9a28f6 | 141 | |
f0d53e88 KVA |
142 | /* DMA transfers can take a long time if a lot a data is transferred. |
143 | * The timeout must take in account the amount of data. Let's assume | |
144 | * that the time will never exceed 333 ms per MB (in other word we assume | |
145 | * that the bandwidth is always above 3MB/s). | |
146 | */ | |
147 | #define DMA_TIMEOUT_PER_MB 333 | |
b5944817 KVA |
148 | #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0) |
149 | #define OMAP_HSMMC_NO_1_8_V BIT(1) | |
f0d53e88 | 150 | #define OMAP_HSMMC_USE_ADMA BIT(2) |
33c1d77f | 151 | #define OMAP_HSMMC_REQUIRE_IODELAY BIT(3) |
f0d53e88 | 152 | |
933efe64 S |
153 | static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size); |
154 | static int mmc_write_data(struct hsmmc *mmc_base, const char *buf, | |
155 | unsigned int siz); | |
5baf543e JJH |
156 | static void omap_hsmmc_start_clock(struct hsmmc *mmc_base); |
157 | static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base); | |
14761cae | 158 | static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit); |
14fa2dd0 | 159 | |
ae000e23 JJH |
160 | static inline struct omap_hsmmc_data *omap_hsmmc_get_data(struct mmc *mmc) |
161 | { | |
c4d660d4 | 162 | #if CONFIG_IS_ENABLED(DM_MMC) |
ae000e23 JJH |
163 | return dev_get_priv(mmc->dev); |
164 | #else | |
165 | return (struct omap_hsmmc_data *)mmc->priv; | |
166 | #endif | |
3d673ffc JJH |
167 | } |
168 | static inline struct mmc_config *omap_hsmmc_get_cfg(struct mmc *mmc) | |
169 | { | |
c4d660d4 | 170 | #if CONFIG_IS_ENABLED(DM_MMC) |
3d673ffc JJH |
171 | struct omap_hsmmc_plat *plat = dev_get_platdata(mmc->dev); |
172 | return &plat->cfg; | |
173 | #else | |
174 | return &((struct omap_hsmmc_data *)mmc->priv)->cfg; | |
175 | #endif | |
ae000e23 JJH |
176 | } |
177 | ||
c4d660d4 | 178 | #if defined(OMAP_HSMMC_USE_GPIO) && !CONFIG_IS_ENABLED(DM_MMC) |
e874d5b0 NK |
179 | static int omap_mmc_setup_gpio_in(int gpio, const char *label) |
180 | { | |
5915a2ad | 181 | int ret; |
e874d5b0 | 182 | |
5915a2ad SG |
183 | #ifndef CONFIG_DM_GPIO |
184 | if (!gpio_is_valid(gpio)) | |
e874d5b0 | 185 | return -1; |
5915a2ad SG |
186 | #endif |
187 | ret = gpio_request(gpio, label); | |
188 | if (ret) | |
189 | return ret; | |
e874d5b0 | 190 | |
5915a2ad SG |
191 | ret = gpio_direction_input(gpio); |
192 | if (ret) | |
193 | return ret; | |
e874d5b0 NK |
194 | |
195 | return gpio; | |
196 | } | |
e874d5b0 NK |
197 | #endif |
198 | ||
750121c3 | 199 | static unsigned char mmc_board_init(struct mmc *mmc) |
de941241 | 200 | { |
de941241 | 201 | #if defined(CONFIG_OMAP34XX) |
3d673ffc | 202 | struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc); |
de941241 SG |
203 | t2_t *t2_base = (t2_t *)T2_BASE; |
204 | struct prcm *prcm_base = (struct prcm *)PRCM_BASE; | |
b1e725f2 | 205 | u32 pbias_lite; |
6aca17c9 AF |
206 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
207 | u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL); | |
208 | #endif | |
de941241 | 209 | |
b1e725f2 GI |
210 | pbias_lite = readl(&t2_base->pbias_lite); |
211 | pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0); | |
5bfdd1fc AA |
212 | #ifdef CONFIG_TARGET_OMAP3_CAIRO |
213 | /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */ | |
214 | pbias_lite &= ~PBIASLITEVMODE0; | |
6aca17c9 AF |
215 | #endif |
216 | #ifdef CONFIG_MMC_OMAP36XX_PINS | |
217 | if (get_cpu_family() == CPU_OMAP36XX) { | |
218 | /* Disable extended drain IO before changing PBIAS */ | |
219 | wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ; | |
220 | writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL); | |
221 | } | |
5bfdd1fc | 222 | #endif |
b1e725f2 | 223 | writel(pbias_lite, &t2_base->pbias_lite); |
aac5450e | 224 | |
b1e725f2 | 225 | writel(pbias_lite | PBIASLITEPWRDNZ1 | |
de941241 SG |
226 | PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0, |
227 | &t2_base->pbias_lite); | |
228 | ||
6aca17c9 AF |
229 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
230 | if (get_cpu_family() == CPU_OMAP36XX) | |
231 | /* Enable extended drain IO after changing PBIAS */ | |
232 | writel(wkup_ctrl | | |
233 | OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ, | |
234 | OMAP34XX_CTRL_WKUP_CTRL); | |
235 | #endif | |
de941241 SG |
236 | writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL, |
237 | &t2_base->devconf0); | |
238 | ||
239 | writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL, | |
240 | &t2_base->devconf1); | |
241 | ||
bbbc1ae9 | 242 | /* Change from default of 52MHz to 26MHz if necessary */ |
3d673ffc | 243 | if (!(cfg->host_caps & MMC_MODE_HS_52MHz)) |
bbbc1ae9 JS |
244 | writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL, |
245 | &t2_base->ctl_prog_io1); | |
246 | ||
de941241 SG |
247 | writel(readl(&prcm_base->fclken1_core) | |
248 | EN_MMC1 | EN_MMC2 | EN_MMC3, | |
249 | &prcm_base->fclken1_core); | |
250 | ||
251 | writel(readl(&prcm_base->iclken1_core) | | |
252 | EN_MMC1 | EN_MMC2 | EN_MMC3, | |
253 | &prcm_base->iclken1_core); | |
254 | #endif | |
255 | ||
b4b06006 | 256 | #if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX) |
14fa2dd0 | 257 | /* PBIAS config needed for MMC1 only */ |
dc09127a | 258 | if (mmc_get_blk_desc(mmc)->devnum == 0) |
b4b06006 | 259 | vmmc_pbias_config(LDO_VOLT_3V0); |
dd23e59d | 260 | #endif |
de941241 SG |
261 | |
262 | return 0; | |
263 | } | |
264 | ||
933efe64 | 265 | void mmc_init_stream(struct hsmmc *mmc_base) |
de941241 | 266 | { |
eb9a28f6 | 267 | ulong start; |
de941241 SG |
268 | |
269 | writel(readl(&mmc_base->con) | INIT_INITSTREAM, &mmc_base->con); | |
270 | ||
271 | writel(MMC_CMD0, &mmc_base->cmd); | |
eb9a28f6 NM |
272 | start = get_timer(0); |
273 | while (!(readl(&mmc_base->stat) & CC_MASK)) { | |
274 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
275 | printf("%s: timedout waiting for cc!\n", __func__); | |
276 | return; | |
277 | } | |
278 | } | |
de941241 SG |
279 | writel(CC_MASK, &mmc_base->stat) |
280 | ; | |
281 | writel(MMC_CMD0, &mmc_base->cmd) | |
282 | ; | |
eb9a28f6 NM |
283 | start = get_timer(0); |
284 | while (!(readl(&mmc_base->stat) & CC_MASK)) { | |
285 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
286 | printf("%s: timedout waiting for cc2!\n", __func__); | |
287 | return; | |
288 | } | |
289 | } | |
de941241 SG |
290 | writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con); |
291 | } | |
292 | ||
b5944817 | 293 | #if CONFIG_IS_ENABLED(DM_MMC) |
33c1d77f KVA |
294 | #ifdef CONFIG_IODELAY_RECALIBRATION |
295 | static void omap_hsmmc_io_recalibrate(struct mmc *mmc) | |
296 | { | |
297 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
298 | struct omap_hsmmc_pinctrl_state *pinctrl_state; | |
299 | ||
300 | switch (priv->mode) { | |
301 | case MMC_HS_200: | |
302 | pinctrl_state = priv->hs200_1_8v_pinctrl_state; | |
303 | break; | |
304 | case UHS_SDR104: | |
305 | pinctrl_state = priv->sdr104_pinctrl_state; | |
306 | break; | |
307 | case UHS_SDR50: | |
308 | pinctrl_state = priv->sdr50_pinctrl_state; | |
309 | break; | |
310 | case UHS_DDR50: | |
311 | pinctrl_state = priv->ddr50_pinctrl_state; | |
312 | break; | |
313 | case UHS_SDR25: | |
314 | pinctrl_state = priv->sdr25_pinctrl_state; | |
315 | break; | |
316 | case UHS_SDR12: | |
317 | pinctrl_state = priv->sdr12_pinctrl_state; | |
318 | break; | |
319 | case SD_HS: | |
320 | case MMC_HS: | |
321 | case MMC_HS_52: | |
322 | pinctrl_state = priv->hs_pinctrl_state; | |
323 | break; | |
324 | case MMC_DDR_52: | |
325 | pinctrl_state = priv->ddr_1_8v_pinctrl_state; | |
326 | default: | |
327 | pinctrl_state = priv->default_pinctrl_state; | |
328 | break; | |
329 | } | |
330 | ||
331 | if (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY) { | |
332 | if (pinctrl_state->iodelay) | |
333 | late_recalibrate_iodelay(pinctrl_state->padconf, | |
334 | pinctrl_state->npads, | |
335 | pinctrl_state->iodelay, | |
336 | pinctrl_state->niodelays); | |
337 | else | |
338 | do_set_mux32((*ctrl)->control_padconf_core_base, | |
339 | pinctrl_state->padconf, | |
340 | pinctrl_state->npads); | |
341 | } | |
342 | } | |
343 | #endif | |
8fc238bf JJH |
344 | static void omap_hsmmc_set_timing(struct mmc *mmc) |
345 | { | |
346 | u32 val; | |
347 | struct hsmmc *mmc_base; | |
348 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
349 | ||
350 | mmc_base = priv->base_addr; | |
351 | ||
33c1d77f | 352 | omap_hsmmc_stop_clock(mmc_base); |
8fc238bf JJH |
353 | val = readl(&mmc_base->ac12); |
354 | val &= ~AC12_UHSMC_MASK; | |
355 | priv->mode = mmc->selected_mode; | |
356 | ||
9b3fc218 KVA |
357 | if (mmc_is_mode_ddr(priv->mode)) |
358 | writel(readl(&mmc_base->con) | DDR, &mmc_base->con); | |
359 | else | |
360 | writel(readl(&mmc_base->con) & ~DDR, &mmc_base->con); | |
361 | ||
8fc238bf JJH |
362 | switch (priv->mode) { |
363 | case MMC_HS_200: | |
364 | case UHS_SDR104: | |
365 | val |= AC12_UHSMC_SDR104; | |
366 | break; | |
367 | case UHS_SDR50: | |
368 | val |= AC12_UHSMC_SDR50; | |
369 | break; | |
370 | case MMC_DDR_52: | |
371 | case UHS_DDR50: | |
372 | val |= AC12_UHSMC_DDR50; | |
373 | break; | |
374 | case SD_HS: | |
375 | case MMC_HS_52: | |
376 | case UHS_SDR25: | |
377 | val |= AC12_UHSMC_SDR25; | |
378 | break; | |
379 | case MMC_LEGACY: | |
380 | case MMC_HS: | |
381 | case SD_LEGACY: | |
382 | case UHS_SDR12: | |
383 | val |= AC12_UHSMC_SDR12; | |
384 | break; | |
385 | default: | |
386 | val |= AC12_UHSMC_RES; | |
387 | break; | |
388 | } | |
389 | writel(val, &mmc_base->ac12); | |
33c1d77f KVA |
390 | |
391 | #ifdef CONFIG_IODELAY_RECALIBRATION | |
392 | omap_hsmmc_io_recalibrate(mmc); | |
393 | #endif | |
394 | omap_hsmmc_start_clock(mmc_base); | |
8fc238bf JJH |
395 | } |
396 | ||
b5944817 KVA |
397 | static void omap_hsmmc_conf_bus_power(struct mmc *mmc) |
398 | { | |
399 | struct hsmmc *mmc_base; | |
400 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
401 | u32 val; | |
402 | ||
403 | mmc_base = priv->base_addr; | |
404 | ||
405 | val = readl(&mmc_base->hctl) & ~SDVS_MASK; | |
406 | ||
407 | switch (priv->iov) { | |
408 | case IOV_3V3: | |
409 | val |= SDVS_3V3; | |
410 | break; | |
411 | case IOV_3V0: | |
412 | val |= SDVS_3V0; | |
413 | break; | |
414 | case IOV_1V8: | |
415 | val |= SDVS_1V8; | |
416 | break; | |
417 | } | |
418 | ||
419 | writel(val, &mmc_base->hctl); | |
420 | } | |
421 | ||
422 | static void omap_hsmmc_set_capabilities(struct mmc *mmc) | |
423 | { | |
424 | struct hsmmc *mmc_base; | |
425 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
426 | u32 val; | |
427 | ||
428 | mmc_base = priv->base_addr; | |
429 | val = readl(&mmc_base->capa); | |
430 | ||
431 | if (priv->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) { | |
432 | val |= (VS30_3V0SUP | VS18_1V8SUP); | |
433 | priv->iov = IOV_3V0; | |
434 | } else if (priv->controller_flags & OMAP_HSMMC_NO_1_8_V) { | |
435 | val |= VS30_3V0SUP; | |
436 | val &= ~VS18_1V8SUP; | |
437 | priv->iov = IOV_3V0; | |
438 | } else { | |
439 | val |= VS18_1V8SUP; | |
440 | val &= ~VS30_3V0SUP; | |
441 | priv->iov = IOV_1V8; | |
442 | } | |
443 | ||
444 | writel(val, &mmc_base->capa); | |
445 | } | |
14761cae JJH |
446 | |
447 | #ifdef MMC_SUPPORTS_TUNING | |
448 | static void omap_hsmmc_disable_tuning(struct mmc *mmc) | |
449 | { | |
450 | struct hsmmc *mmc_base; | |
451 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
452 | u32 val; | |
453 | ||
454 | mmc_base = priv->base_addr; | |
455 | val = readl(&mmc_base->ac12); | |
456 | val &= ~(AC12_SCLK_SEL); | |
457 | writel(val, &mmc_base->ac12); | |
458 | ||
459 | val = readl(&mmc_base->dll); | |
460 | val &= ~(DLL_FORCE_VALUE | DLL_SWT); | |
461 | writel(val, &mmc_base->dll); | |
462 | } | |
463 | ||
464 | static void omap_hsmmc_set_dll(struct mmc *mmc, int count) | |
465 | { | |
466 | int i; | |
467 | struct hsmmc *mmc_base; | |
468 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
469 | u32 val; | |
470 | ||
471 | mmc_base = priv->base_addr; | |
472 | val = readl(&mmc_base->dll); | |
473 | val |= DLL_FORCE_VALUE; | |
474 | val &= ~(DLL_FORCE_SR_C_MASK << DLL_FORCE_SR_C_SHIFT); | |
475 | val |= (count << DLL_FORCE_SR_C_SHIFT); | |
476 | writel(val, &mmc_base->dll); | |
477 | ||
478 | val |= DLL_CALIB; | |
479 | writel(val, &mmc_base->dll); | |
480 | for (i = 0; i < 1000; i++) { | |
481 | if (readl(&mmc_base->dll) & DLL_CALIB) | |
482 | break; | |
483 | } | |
484 | val &= ~DLL_CALIB; | |
485 | writel(val, &mmc_base->dll); | |
486 | } | |
487 | ||
488 | static int omap_hsmmc_execute_tuning(struct udevice *dev, uint opcode) | |
489 | { | |
490 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
491 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); | |
492 | struct mmc *mmc = upriv->mmc; | |
493 | struct hsmmc *mmc_base; | |
494 | u32 val; | |
495 | u8 cur_match, prev_match = 0; | |
496 | int ret; | |
497 | u32 phase_delay = 0; | |
498 | u32 start_window = 0, max_window = 0; | |
499 | u32 length = 0, max_len = 0; | |
500 | ||
501 | mmc_base = priv->base_addr; | |
502 | val = readl(&mmc_base->capa2); | |
503 | ||
504 | /* clock tuning is not needed for upto 52MHz */ | |
505 | if (!((mmc->selected_mode == MMC_HS_200) || | |
506 | (mmc->selected_mode == UHS_SDR104) || | |
507 | ((mmc->selected_mode == UHS_SDR50) && (val & CAPA2_TSDR50)))) | |
508 | return 0; | |
509 | ||
510 | val = readl(&mmc_base->dll); | |
511 | val |= DLL_SWT; | |
512 | writel(val, &mmc_base->dll); | |
513 | while (phase_delay <= MAX_PHASE_DELAY) { | |
514 | omap_hsmmc_set_dll(mmc, phase_delay); | |
515 | ||
516 | cur_match = !mmc_send_tuning(mmc, opcode, NULL); | |
517 | ||
518 | if (cur_match) { | |
519 | if (prev_match) { | |
520 | length++; | |
521 | } else { | |
522 | start_window = phase_delay; | |
523 | length = 1; | |
524 | } | |
525 | } | |
526 | ||
527 | if (length > max_len) { | |
528 | max_window = start_window; | |
529 | max_len = length; | |
530 | } | |
531 | ||
532 | prev_match = cur_match; | |
533 | phase_delay += 4; | |
534 | } | |
535 | ||
536 | if (!max_len) { | |
537 | ret = -EIO; | |
538 | goto tuning_error; | |
539 | } | |
540 | ||
541 | val = readl(&mmc_base->ac12); | |
542 | if (!(val & AC12_SCLK_SEL)) { | |
543 | ret = -EIO; | |
544 | goto tuning_error; | |
545 | } | |
546 | ||
547 | phase_delay = max_window + 4 * ((3 * max_len) >> 2); | |
548 | omap_hsmmc_set_dll(mmc, phase_delay); | |
549 | ||
550 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
551 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC); | |
552 | ||
553 | return 0; | |
554 | ||
555 | tuning_error: | |
556 | ||
557 | omap_hsmmc_disable_tuning(mmc); | |
558 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
559 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC); | |
560 | ||
561 | return ret; | |
562 | } | |
563 | #endif | |
b5944817 KVA |
564 | #endif |
565 | ||
2faa1a30 JJH |
566 | static void mmc_enable_irq(struct mmc *mmc, struct mmc_cmd *cmd) |
567 | { | |
568 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
569 | struct hsmmc *mmc_base = priv->base_addr; | |
570 | u32 irq_mask = INT_EN_MASK; | |
571 | ||
572 | /* | |
573 | * TODO: Errata i802 indicates only DCRC interrupts can occur during | |
574 | * tuning procedure and DCRC should be disabled. But see occurences | |
575 | * of DEB, CIE, CEB, CCRC interupts during tuning procedure. These | |
576 | * interrupts occur along with BRR, so the data is actually in the | |
577 | * buffer. It has to be debugged why these interrutps occur | |
578 | */ | |
579 | if (cmd && mmc_is_tuning_cmd(cmd->cmdidx)) | |
580 | irq_mask &= ~(IE_DEB | IE_DCRC | IE_CIE | IE_CEB | IE_CCRC); | |
581 | ||
582 | writel(irq_mask, &mmc_base->ie); | |
583 | } | |
584 | ||
ab769f22 | 585 | static int omap_hsmmc_init_setup(struct mmc *mmc) |
de941241 | 586 | { |
ae000e23 | 587 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
cc22b0c0 | 588 | struct hsmmc *mmc_base; |
de941241 SG |
589 | unsigned int reg_val; |
590 | unsigned int dsor; | |
eb9a28f6 | 591 | ulong start; |
de941241 | 592 | |
ae000e23 | 593 | mmc_base = priv->base_addr; |
14fa2dd0 | 594 | mmc_board_init(mmc); |
de941241 SG |
595 | |
596 | writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET, | |
597 | &mmc_base->sysconfig); | |
eb9a28f6 NM |
598 | start = get_timer(0); |
599 | while ((readl(&mmc_base->sysstatus) & RESETDONE) == 0) { | |
600 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
601 | printf("%s: timedout waiting for cc2!\n", __func__); | |
915ffa52 | 602 | return -ETIMEDOUT; |
eb9a28f6 NM |
603 | } |
604 | } | |
de941241 | 605 | writel(readl(&mmc_base->sysctl) | SOFTRESETALL, &mmc_base->sysctl); |
eb9a28f6 NM |
606 | start = get_timer(0); |
607 | while ((readl(&mmc_base->sysctl) & SOFTRESETALL) != 0x0) { | |
608 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
609 | printf("%s: timedout waiting for softresetall!\n", | |
610 | __func__); | |
915ffa52 | 611 | return -ETIMEDOUT; |
eb9a28f6 NM |
612 | } |
613 | } | |
f0d53e88 KVA |
614 | #ifndef CONFIG_OMAP34XX |
615 | reg_val = readl(&mmc_base->hl_hwinfo); | |
616 | if (reg_val & MADMA_EN) | |
617 | priv->controller_flags |= OMAP_HSMMC_USE_ADMA; | |
618 | #endif | |
b5944817 KVA |
619 | |
620 | #if CONFIG_IS_ENABLED(DM_MMC) | |
621 | omap_hsmmc_set_capabilities(mmc); | |
622 | omap_hsmmc_conf_bus_power(mmc); | |
623 | #else | |
de941241 SG |
624 | writel(DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0, &mmc_base->hctl); |
625 | writel(readl(&mmc_base->capa) | VS30_3V0SUP | VS18_1V8SUP, | |
626 | &mmc_base->capa); | |
b5944817 | 627 | #endif |
de941241 SG |
628 | |
629 | reg_val = readl(&mmc_base->con) & RESERVED_MASK; | |
630 | ||
631 | writel(CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH | CDP_ACTIVEHIGH | | |
632 | MIT_CTO | DW8_1_4BITMODE | MODE_FUNC | STR_BLOCK | | |
633 | HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN, &mmc_base->con); | |
634 | ||
635 | dsor = 240; | |
636 | mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK), | |
29171dcf | 637 | (ICE_STOP | DTO_15THDTO)); |
de941241 SG |
638 | mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK, |
639 | (dsor << CLKD_OFFSET) | ICE_OSCILLATE); | |
eb9a28f6 NM |
640 | start = get_timer(0); |
641 | while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) { | |
642 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
643 | printf("%s: timedout waiting for ics!\n", __func__); | |
915ffa52 | 644 | return -ETIMEDOUT; |
eb9a28f6 NM |
645 | } |
646 | } | |
de941241 SG |
647 | writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl); |
648 | ||
649 | writel(readl(&mmc_base->hctl) | SDBP_PWRON, &mmc_base->hctl); | |
650 | ||
2faa1a30 | 651 | mmc_enable_irq(mmc, NULL); |
de941241 SG |
652 | mmc_init_stream(mmc_base); |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
25c719e2 GI |
657 | /* |
658 | * MMC controller internal finite state machine reset | |
659 | * | |
660 | * Used to reset command or data internal state machines, using respectively | |
661 | * SRC or SRD bit of SYSCTL register | |
662 | */ | |
663 | static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit) | |
664 | { | |
665 | ulong start; | |
666 | ||
667 | mmc_reg_out(&mmc_base->sysctl, bit, bit); | |
668 | ||
61a6cc27 OT |
669 | /* |
670 | * CMD(DAT) lines reset procedures are slightly different | |
671 | * for OMAP3 and OMAP4(AM335x,OMAP5,DRA7xx). | |
672 | * According to OMAP3 TRM: | |
673 | * Set SRC(SRD) bit in MMCHS_SYSCTL register to 0x1 and wait until it | |
674 | * returns to 0x0. | |
675 | * According to OMAP4(AM335x,OMAP5,DRA7xx) TRMs, CMD(DATA) lines reset | |
676 | * procedure steps must be as follows: | |
677 | * 1. Initiate CMD(DAT) line reset by writing 0x1 to SRC(SRD) bit in | |
678 | * MMCHS_SYSCTL register (SD_SYSCTL for AM335x). | |
679 | * 2. Poll the SRC(SRD) bit until it is set to 0x1. | |
680 | * 3. Wait until the SRC (SRD) bit returns to 0x0 | |
681 | * (reset procedure is completed). | |
682 | */ | |
683 | #if defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ | |
dce55b93 | 684 | defined(CONFIG_AM33XX) || defined(CONFIG_AM43XX) |
61a6cc27 OT |
685 | if (!(readl(&mmc_base->sysctl) & bit)) { |
686 | start = get_timer(0); | |
687 | while (!(readl(&mmc_base->sysctl) & bit)) { | |
a4efd737 | 688 | if (get_timer(0) - start > MMC_TIMEOUT_MS) |
61a6cc27 OT |
689 | return; |
690 | } | |
691 | } | |
692 | #endif | |
25c719e2 GI |
693 | start = get_timer(0); |
694 | while ((readl(&mmc_base->sysctl) & bit) != 0) { | |
695 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
696 | printf("%s: timedout waiting for sysctl %x to clear\n", | |
697 | __func__, bit); | |
698 | return; | |
699 | } | |
700 | } | |
701 | } | |
f0d53e88 KVA |
702 | |
703 | #ifndef CONFIG_OMAP34XX | |
704 | static void omap_hsmmc_adma_desc(struct mmc *mmc, char *buf, u16 len, bool end) | |
705 | { | |
706 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
707 | struct omap_hsmmc_adma_desc *desc; | |
708 | u8 attr; | |
709 | ||
710 | desc = &priv->adma_desc_table[priv->desc_slot]; | |
711 | ||
712 | attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA; | |
713 | if (!end) | |
714 | priv->desc_slot++; | |
715 | else | |
716 | attr |= ADMA_DESC_ATTR_END; | |
717 | ||
718 | desc->len = len; | |
719 | desc->addr = (u32)buf; | |
720 | desc->reserved = 0; | |
721 | desc->attr = attr; | |
722 | } | |
723 | ||
724 | static void omap_hsmmc_prepare_adma_table(struct mmc *mmc, | |
725 | struct mmc_data *data) | |
726 | { | |
727 | uint total_len = data->blocksize * data->blocks; | |
728 | uint desc_count = DIV_ROUND_UP(total_len, ADMA_MAX_LEN); | |
729 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
730 | int i = desc_count; | |
731 | char *buf; | |
732 | ||
733 | priv->desc_slot = 0; | |
734 | priv->adma_desc_table = (struct omap_hsmmc_adma_desc *) | |
735 | memalign(ARCH_DMA_MINALIGN, desc_count * | |
736 | sizeof(struct omap_hsmmc_adma_desc)); | |
737 | ||
738 | if (data->flags & MMC_DATA_READ) | |
739 | buf = data->dest; | |
740 | else | |
741 | buf = (char *)data->src; | |
742 | ||
743 | while (--i) { | |
744 | omap_hsmmc_adma_desc(mmc, buf, ADMA_MAX_LEN, false); | |
745 | buf += ADMA_MAX_LEN; | |
746 | total_len -= ADMA_MAX_LEN; | |
747 | } | |
748 | ||
749 | omap_hsmmc_adma_desc(mmc, buf, total_len, true); | |
750 | ||
751 | flush_dcache_range((long)priv->adma_desc_table, | |
752 | (long)priv->adma_desc_table + | |
753 | ROUND(desc_count * | |
754 | sizeof(struct omap_hsmmc_adma_desc), | |
755 | ARCH_DMA_MINALIGN)); | |
756 | } | |
757 | ||
758 | static void omap_hsmmc_prepare_data(struct mmc *mmc, struct mmc_data *data) | |
759 | { | |
760 | struct hsmmc *mmc_base; | |
761 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
762 | u32 val; | |
763 | char *buf; | |
764 | ||
765 | mmc_base = priv->base_addr; | |
766 | omap_hsmmc_prepare_adma_table(mmc, data); | |
767 | ||
768 | if (data->flags & MMC_DATA_READ) | |
769 | buf = data->dest; | |
770 | else | |
771 | buf = (char *)data->src; | |
772 | ||
773 | val = readl(&mmc_base->hctl); | |
774 | val |= DMA_SELECT; | |
775 | writel(val, &mmc_base->hctl); | |
776 | ||
777 | val = readl(&mmc_base->con); | |
778 | val |= DMA_MASTER; | |
779 | writel(val, &mmc_base->con); | |
780 | ||
781 | writel((u32)priv->adma_desc_table, &mmc_base->admasal); | |
782 | ||
783 | flush_dcache_range((u32)buf, | |
784 | (u32)buf + | |
785 | ROUND(data->blocksize * data->blocks, | |
786 | ARCH_DMA_MINALIGN)); | |
787 | } | |
788 | ||
789 | static void omap_hsmmc_dma_cleanup(struct mmc *mmc) | |
790 | { | |
791 | struct hsmmc *mmc_base; | |
792 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
793 | u32 val; | |
794 | ||
795 | mmc_base = priv->base_addr; | |
796 | ||
797 | val = readl(&mmc_base->con); | |
798 | val &= ~DMA_MASTER; | |
799 | writel(val, &mmc_base->con); | |
800 | ||
801 | val = readl(&mmc_base->hctl); | |
802 | val &= ~DMA_SELECT; | |
803 | writel(val, &mmc_base->hctl); | |
804 | ||
805 | kfree(priv->adma_desc_table); | |
806 | } | |
807 | #else | |
808 | #define omap_hsmmc_adma_desc | |
809 | #define omap_hsmmc_prepare_adma_table | |
810 | #define omap_hsmmc_prepare_data | |
811 | #define omap_hsmmc_dma_cleanup | |
812 | #endif | |
813 | ||
c4d660d4 | 814 | #if !CONFIG_IS_ENABLED(DM_MMC) |
ab769f22 | 815 | static int omap_hsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, |
de941241 SG |
816 | struct mmc_data *data) |
817 | { | |
ae000e23 | 818 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
b5511d6c JJH |
819 | #else |
820 | static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, | |
821 | struct mmc_data *data) | |
822 | { | |
823 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
f0d53e88 KVA |
824 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); |
825 | struct mmc *mmc = upriv->mmc; | |
b5511d6c | 826 | #endif |
cc22b0c0 | 827 | struct hsmmc *mmc_base; |
de941241 | 828 | unsigned int flags, mmc_stat; |
eb9a28f6 | 829 | ulong start; |
de941241 | 830 | |
ae000e23 | 831 | mmc_base = priv->base_addr; |
866bb984 KVA |
832 | |
833 | if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) | |
834 | return 0; | |
835 | ||
eb9a28f6 | 836 | start = get_timer(0); |
a7778f8f | 837 | while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) { |
eb9a28f6 | 838 | if (get_timer(0) - start > MAX_RETRY_MS) { |
a7778f8f TR |
839 | printf("%s: timedout waiting on cmd inhibit to clear\n", |
840 | __func__); | |
915ffa52 | 841 | return -ETIMEDOUT; |
eb9a28f6 NM |
842 | } |
843 | } | |
de941241 | 844 | writel(0xFFFFFFFF, &mmc_base->stat); |
eb9a28f6 NM |
845 | start = get_timer(0); |
846 | while (readl(&mmc_base->stat)) { | |
847 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
15ceb1de GI |
848 | printf("%s: timedout waiting for STAT (%x) to clear\n", |
849 | __func__, readl(&mmc_base->stat)); | |
915ffa52 | 850 | return -ETIMEDOUT; |
eb9a28f6 NM |
851 | } |
852 | } | |
de941241 SG |
853 | /* |
854 | * CMDREG | |
855 | * CMDIDX[13:8] : Command index | |
856 | * DATAPRNT[5] : Data Present Select | |
857 | * ENCMDIDX[4] : Command Index Check Enable | |
858 | * ENCMDCRC[3] : Command CRC Check Enable | |
859 | * RSPTYP[1:0] | |
860 | * 00 = No Response | |
861 | * 01 = Length 136 | |
862 | * 10 = Length 48 | |
863 | * 11 = Length 48 Check busy after response | |
864 | */ | |
865 | /* Delay added before checking the status of frq change | |
866 | * retry not supported by mmc.c(core file) | |
867 | */ | |
868 | if (cmd->cmdidx == SD_CMD_APP_SEND_SCR) | |
869 | udelay(50000); /* wait 50 ms */ | |
870 | ||
871 | if (!(cmd->resp_type & MMC_RSP_PRESENT)) | |
872 | flags = 0; | |
873 | else if (cmd->resp_type & MMC_RSP_136) | |
874 | flags = RSP_TYPE_LGHT136 | CICE_NOCHECK; | |
875 | else if (cmd->resp_type & MMC_RSP_BUSY) | |
876 | flags = RSP_TYPE_LGHT48B; | |
877 | else | |
878 | flags = RSP_TYPE_LGHT48; | |
879 | ||
880 | /* enable default flags */ | |
881 | flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK | | |
29171dcf KVA |
882 | MSBS_SGLEBLK); |
883 | flags &= ~(ACEN_ENABLE | BCE_ENABLE | DE_ENABLE); | |
de941241 SG |
884 | |
885 | if (cmd->resp_type & MMC_RSP_CRC) | |
886 | flags |= CCCE_CHECK; | |
887 | if (cmd->resp_type & MMC_RSP_OPCODE) | |
888 | flags |= CICE_CHECK; | |
889 | ||
890 | if (data) { | |
891 | if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) || | |
892 | (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) { | |
866bb984 | 893 | flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE); |
de941241 SG |
894 | data->blocksize = 512; |
895 | writel(data->blocksize | (data->blocks << 16), | |
896 | &mmc_base->blk); | |
897 | } else | |
898 | writel(data->blocksize | NBLK_STPCNT, &mmc_base->blk); | |
899 | ||
900 | if (data->flags & MMC_DATA_READ) | |
901 | flags |= (DP_DATA | DDIR_READ); | |
902 | else | |
903 | flags |= (DP_DATA | DDIR_WRITE); | |
f0d53e88 KVA |
904 | |
905 | #ifndef CONFIG_OMAP34XX | |
906 | if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && | |
907 | !mmc_is_tuning_cmd(cmd->cmdidx)) { | |
908 | omap_hsmmc_prepare_data(mmc, data); | |
909 | flags |= DE_ENABLE; | |
910 | } | |
911 | #endif | |
de941241 SG |
912 | } |
913 | ||
2faa1a30 JJH |
914 | mmc_enable_irq(mmc, cmd); |
915 | ||
de941241 | 916 | writel(cmd->cmdarg, &mmc_base->arg); |
152ba363 | 917 | udelay(20); /* To fix "No status update" error on eMMC */ |
de941241 SG |
918 | writel((cmd->cmdidx << 24) | flags, &mmc_base->cmd); |
919 | ||
eb9a28f6 | 920 | start = get_timer(0); |
de941241 SG |
921 | do { |
922 | mmc_stat = readl(&mmc_base->stat); | |
f0d53e88 | 923 | if (get_timer(start) > MAX_RETRY_MS) { |
eb9a28f6 | 924 | printf("%s : timeout: No status update\n", __func__); |
915ffa52 | 925 | return -ETIMEDOUT; |
eb9a28f6 NM |
926 | } |
927 | } while (!mmc_stat); | |
de941241 | 928 | |
25c719e2 GI |
929 | if ((mmc_stat & IE_CTO) != 0) { |
930 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC); | |
915ffa52 | 931 | return -ETIMEDOUT; |
25c719e2 | 932 | } else if ((mmc_stat & ERRI_MASK) != 0) |
de941241 SG |
933 | return -1; |
934 | ||
935 | if (mmc_stat & CC_MASK) { | |
936 | writel(CC_MASK, &mmc_base->stat); | |
937 | if (cmd->resp_type & MMC_RSP_PRESENT) { | |
938 | if (cmd->resp_type & MMC_RSP_136) { | |
939 | /* response type 2 */ | |
940 | cmd->response[3] = readl(&mmc_base->rsp10); | |
941 | cmd->response[2] = readl(&mmc_base->rsp32); | |
942 | cmd->response[1] = readl(&mmc_base->rsp54); | |
943 | cmd->response[0] = readl(&mmc_base->rsp76); | |
944 | } else | |
945 | /* response types 1, 1b, 3, 4, 5, 6 */ | |
946 | cmd->response[0] = readl(&mmc_base->rsp10); | |
947 | } | |
948 | } | |
949 | ||
f0d53e88 KVA |
950 | #ifndef CONFIG_OMAP34XX |
951 | if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && data && | |
952 | !mmc_is_tuning_cmd(cmd->cmdidx)) { | |
953 | u32 sz_mb, timeout; | |
954 | ||
955 | if (mmc_stat & IE_ADMAE) { | |
956 | omap_hsmmc_dma_cleanup(mmc); | |
957 | return -EIO; | |
958 | } | |
959 | ||
960 | sz_mb = DIV_ROUND_UP(data->blocksize * data->blocks, 1 << 20); | |
961 | timeout = sz_mb * DMA_TIMEOUT_PER_MB; | |
962 | if (timeout < MAX_RETRY_MS) | |
963 | timeout = MAX_RETRY_MS; | |
964 | ||
965 | start = get_timer(0); | |
966 | do { | |
967 | mmc_stat = readl(&mmc_base->stat); | |
968 | if (mmc_stat & TC_MASK) { | |
969 | writel(readl(&mmc_base->stat) | TC_MASK, | |
970 | &mmc_base->stat); | |
971 | break; | |
972 | } | |
973 | if (get_timer(start) > timeout) { | |
974 | printf("%s : DMA timeout: No status update\n", | |
975 | __func__); | |
976 | return -ETIMEDOUT; | |
977 | } | |
978 | } while (1); | |
979 | ||
980 | omap_hsmmc_dma_cleanup(mmc); | |
981 | return 0; | |
982 | } | |
983 | #endif | |
984 | ||
de941241 SG |
985 | if (data && (data->flags & MMC_DATA_READ)) { |
986 | mmc_read_data(mmc_base, data->dest, | |
987 | data->blocksize * data->blocks); | |
988 | } else if (data && (data->flags & MMC_DATA_WRITE)) { | |
989 | mmc_write_data(mmc_base, data->src, | |
990 | data->blocksize * data->blocks); | |
991 | } | |
992 | return 0; | |
993 | } | |
994 | ||
933efe64 | 995 | static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size) |
de941241 SG |
996 | { |
997 | unsigned int *output_buf = (unsigned int *)buf; | |
998 | unsigned int mmc_stat; | |
999 | unsigned int count; | |
1000 | ||
1001 | /* | |
1002 | * Start Polled Read | |
1003 | */ | |
1004 | count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size; | |
1005 | count /= 4; | |
1006 | ||
1007 | while (size) { | |
eb9a28f6 | 1008 | ulong start = get_timer(0); |
de941241 SG |
1009 | do { |
1010 | mmc_stat = readl(&mmc_base->stat); | |
eb9a28f6 NM |
1011 | if (get_timer(0) - start > MAX_RETRY_MS) { |
1012 | printf("%s: timedout waiting for status!\n", | |
1013 | __func__); | |
915ffa52 | 1014 | return -ETIMEDOUT; |
eb9a28f6 | 1015 | } |
de941241 SG |
1016 | } while (mmc_stat == 0); |
1017 | ||
25c719e2 GI |
1018 | if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0) |
1019 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
1020 | ||
de941241 SG |
1021 | if ((mmc_stat & ERRI_MASK) != 0) |
1022 | return 1; | |
1023 | ||
1024 | if (mmc_stat & BRR_MASK) { | |
1025 | unsigned int k; | |
1026 | ||
1027 | writel(readl(&mmc_base->stat) | BRR_MASK, | |
1028 | &mmc_base->stat); | |
1029 | for (k = 0; k < count; k++) { | |
1030 | *output_buf = readl(&mmc_base->data); | |
1031 | output_buf++; | |
1032 | } | |
1033 | size -= (count*4); | |
1034 | } | |
1035 | ||
1036 | if (mmc_stat & BWR_MASK) | |
1037 | writel(readl(&mmc_base->stat) | BWR_MASK, | |
1038 | &mmc_base->stat); | |
1039 | ||
1040 | if (mmc_stat & TC_MASK) { | |
1041 | writel(readl(&mmc_base->stat) | TC_MASK, | |
1042 | &mmc_base->stat); | |
1043 | break; | |
1044 | } | |
1045 | } | |
1046 | return 0; | |
1047 | } | |
1048 | ||
933efe64 S |
1049 | static int mmc_write_data(struct hsmmc *mmc_base, const char *buf, |
1050 | unsigned int size) | |
de941241 SG |
1051 | { |
1052 | unsigned int *input_buf = (unsigned int *)buf; | |
1053 | unsigned int mmc_stat; | |
1054 | unsigned int count; | |
1055 | ||
1056 | /* | |
152ba363 | 1057 | * Start Polled Write |
de941241 SG |
1058 | */ |
1059 | count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size; | |
1060 | count /= 4; | |
1061 | ||
1062 | while (size) { | |
eb9a28f6 | 1063 | ulong start = get_timer(0); |
de941241 SG |
1064 | do { |
1065 | mmc_stat = readl(&mmc_base->stat); | |
eb9a28f6 NM |
1066 | if (get_timer(0) - start > MAX_RETRY_MS) { |
1067 | printf("%s: timedout waiting for status!\n", | |
1068 | __func__); | |
915ffa52 | 1069 | return -ETIMEDOUT; |
eb9a28f6 | 1070 | } |
de941241 SG |
1071 | } while (mmc_stat == 0); |
1072 | ||
25c719e2 GI |
1073 | if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0) |
1074 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
1075 | ||
de941241 SG |
1076 | if ((mmc_stat & ERRI_MASK) != 0) |
1077 | return 1; | |
1078 | ||
1079 | if (mmc_stat & BWR_MASK) { | |
1080 | unsigned int k; | |
1081 | ||
1082 | writel(readl(&mmc_base->stat) | BWR_MASK, | |
1083 | &mmc_base->stat); | |
1084 | for (k = 0; k < count; k++) { | |
1085 | writel(*input_buf, &mmc_base->data); | |
1086 | input_buf++; | |
1087 | } | |
1088 | size -= (count*4); | |
1089 | } | |
1090 | ||
1091 | if (mmc_stat & BRR_MASK) | |
1092 | writel(readl(&mmc_base->stat) | BRR_MASK, | |
1093 | &mmc_base->stat); | |
1094 | ||
1095 | if (mmc_stat & TC_MASK) { | |
1096 | writel(readl(&mmc_base->stat) | TC_MASK, | |
1097 | &mmc_base->stat); | |
1098 | break; | |
1099 | } | |
1100 | } | |
1101 | return 0; | |
1102 | } | |
1103 | ||
5baf543e JJH |
1104 | static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base) |
1105 | { | |
1106 | writel(readl(&mmc_base->sysctl) & ~CEN_ENABLE, &mmc_base->sysctl); | |
1107 | } | |
1108 | ||
1109 | static void omap_hsmmc_start_clock(struct hsmmc *mmc_base) | |
1110 | { | |
1111 | writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl); | |
1112 | } | |
1113 | ||
1114 | static void omap_hsmmc_set_clock(struct mmc *mmc) | |
1115 | { | |
1116 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
1117 | struct hsmmc *mmc_base; | |
1118 | unsigned int dsor = 0; | |
1119 | ulong start; | |
1120 | ||
1121 | mmc_base = priv->base_addr; | |
1122 | omap_hsmmc_stop_clock(mmc_base); | |
1123 | ||
1124 | /* TODO: Is setting DTO required here? */ | |
1125 | mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK), | |
1126 | (ICE_STOP | DTO_15THDTO)); | |
1127 | ||
1128 | if (mmc->clock != 0) { | |
1129 | dsor = DIV_ROUND_UP(MMC_CLOCK_REFERENCE * 1000000, mmc->clock); | |
1130 | if (dsor > CLKD_MAX) | |
1131 | dsor = CLKD_MAX; | |
1132 | } else { | |
1133 | dsor = CLKD_MAX; | |
1134 | } | |
1135 | ||
1136 | mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK, | |
1137 | (dsor << CLKD_OFFSET) | ICE_OSCILLATE); | |
1138 | ||
1139 | start = get_timer(0); | |
1140 | while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) { | |
1141 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
1142 | printf("%s: timedout waiting for ics!\n", __func__); | |
1143 | return; | |
1144 | } | |
1145 | } | |
1146 | ||
1147 | priv->clock = mmc->clock; | |
1148 | omap_hsmmc_start_clock(mmc_base); | |
1149 | } | |
1150 | ||
48a2f114 | 1151 | static void omap_hsmmc_set_bus_width(struct mmc *mmc) |
de941241 | 1152 | { |
ae000e23 | 1153 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
cc22b0c0 | 1154 | struct hsmmc *mmc_base; |
de941241 | 1155 | |
ae000e23 | 1156 | mmc_base = priv->base_addr; |
de941241 SG |
1157 | /* configue bus width */ |
1158 | switch (mmc->bus_width) { | |
1159 | case 8: | |
1160 | writel(readl(&mmc_base->con) | DTW_8_BITMODE, | |
1161 | &mmc_base->con); | |
1162 | break; | |
1163 | ||
1164 | case 4: | |
1165 | writel(readl(&mmc_base->con) & ~DTW_8_BITMODE, | |
1166 | &mmc_base->con); | |
1167 | writel(readl(&mmc_base->hctl) | DTW_4_BITMODE, | |
1168 | &mmc_base->hctl); | |
1169 | break; | |
1170 | ||
1171 | case 1: | |
1172 | default: | |
1173 | writel(readl(&mmc_base->con) & ~DTW_8_BITMODE, | |
1174 | &mmc_base->con); | |
1175 | writel(readl(&mmc_base->hctl) & ~DTW_4_BITMODE, | |
1176 | &mmc_base->hctl); | |
1177 | break; | |
1178 | } | |
1179 | ||
48a2f114 KVA |
1180 | priv->bus_width = mmc->bus_width; |
1181 | } | |
1182 | ||
1183 | #if !CONFIG_IS_ENABLED(DM_MMC) | |
1184 | static int omap_hsmmc_set_ios(struct mmc *mmc) | |
1185 | { | |
1186 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
1187 | #else | |
1188 | static int omap_hsmmc_set_ios(struct udevice *dev) | |
1189 | { | |
1190 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
1191 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); | |
1192 | struct mmc *mmc = upriv->mmc; | |
1193 | #endif | |
1194 | ||
1195 | if (priv->bus_width != mmc->bus_width) | |
1196 | omap_hsmmc_set_bus_width(mmc); | |
1197 | ||
5baf543e JJH |
1198 | if (priv->clock != mmc->clock) |
1199 | omap_hsmmc_set_clock(mmc); | |
07b0b9c0 | 1200 | |
8fc238bf JJH |
1201 | #if CONFIG_IS_ENABLED(DM_MMC) |
1202 | if (priv->mode != mmc->selected_mode) | |
1203 | omap_hsmmc_set_timing(mmc); | |
1204 | #endif | |
07b0b9c0 | 1205 | return 0; |
de941241 SG |
1206 | } |
1207 | ||
ab769f22 | 1208 | #ifdef OMAP_HSMMC_USE_GPIO |
c4d660d4 | 1209 | #if CONFIG_IS_ENABLED(DM_MMC) |
b5511d6c | 1210 | static int omap_hsmmc_getcd(struct udevice *dev) |
a9d6a7e2 | 1211 | { |
b5511d6c | 1212 | struct omap_hsmmc_data *priv = dev_get_priv(dev); |
a9d6a7e2 M |
1213 | int value; |
1214 | ||
1215 | value = dm_gpio_get_value(&priv->cd_gpio); | |
1216 | /* if no CD return as 1 */ | |
1217 | if (value < 0) | |
1218 | return 1; | |
1219 | ||
1220 | if (priv->cd_inverted) | |
1221 | return !value; | |
1222 | return value; | |
1223 | } | |
1224 | ||
b5511d6c | 1225 | static int omap_hsmmc_getwp(struct udevice *dev) |
a9d6a7e2 | 1226 | { |
b5511d6c | 1227 | struct omap_hsmmc_data *priv = dev_get_priv(dev); |
a9d6a7e2 M |
1228 | int value; |
1229 | ||
1230 | value = dm_gpio_get_value(&priv->wp_gpio); | |
1231 | /* if no WP return as 0 */ | |
1232 | if (value < 0) | |
1233 | return 0; | |
1234 | return value; | |
1235 | } | |
1236 | #else | |
ab769f22 PA |
1237 | static int omap_hsmmc_getcd(struct mmc *mmc) |
1238 | { | |
ae000e23 | 1239 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
ab769f22 PA |
1240 | int cd_gpio; |
1241 | ||
1242 | /* if no CD return as 1 */ | |
ae000e23 | 1243 | cd_gpio = priv->cd_gpio; |
ab769f22 PA |
1244 | if (cd_gpio < 0) |
1245 | return 1; | |
1246 | ||
0b03a931 IG |
1247 | /* NOTE: assumes card detect signal is active-low */ |
1248 | return !gpio_get_value(cd_gpio); | |
ab769f22 PA |
1249 | } |
1250 | ||
1251 | static int omap_hsmmc_getwp(struct mmc *mmc) | |
1252 | { | |
ae000e23 | 1253 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
ab769f22 PA |
1254 | int wp_gpio; |
1255 | ||
1256 | /* if no WP return as 0 */ | |
ae000e23 | 1257 | wp_gpio = priv->wp_gpio; |
ab769f22 PA |
1258 | if (wp_gpio < 0) |
1259 | return 0; | |
1260 | ||
0b03a931 | 1261 | /* NOTE: assumes write protect signal is active-high */ |
ab769f22 PA |
1262 | return gpio_get_value(wp_gpio); |
1263 | } | |
1264 | #endif | |
a9d6a7e2 | 1265 | #endif |
ab769f22 | 1266 | |
c4d660d4 | 1267 | #if CONFIG_IS_ENABLED(DM_MMC) |
b5511d6c JJH |
1268 | static const struct dm_mmc_ops omap_hsmmc_ops = { |
1269 | .send_cmd = omap_hsmmc_send_cmd, | |
1270 | .set_ios = omap_hsmmc_set_ios, | |
1271 | #ifdef OMAP_HSMMC_USE_GPIO | |
1272 | .get_cd = omap_hsmmc_getcd, | |
1273 | .get_wp = omap_hsmmc_getwp, | |
1274 | #endif | |
14761cae JJH |
1275 | #ifdef MMC_SUPPORTS_TUNING |
1276 | .execute_tuning = omap_hsmmc_execute_tuning, | |
1277 | #endif | |
b5511d6c JJH |
1278 | }; |
1279 | #else | |
ab769f22 PA |
1280 | static const struct mmc_ops omap_hsmmc_ops = { |
1281 | .send_cmd = omap_hsmmc_send_cmd, | |
1282 | .set_ios = omap_hsmmc_set_ios, | |
1283 | .init = omap_hsmmc_init_setup, | |
1284 | #ifdef OMAP_HSMMC_USE_GPIO | |
1285 | .getcd = omap_hsmmc_getcd, | |
1286 | .getwp = omap_hsmmc_getwp, | |
1287 | #endif | |
1288 | }; | |
b5511d6c | 1289 | #endif |
ab769f22 | 1290 | |
c4d660d4 | 1291 | #if !CONFIG_IS_ENABLED(DM_MMC) |
e3913f56 NK |
1292 | int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, |
1293 | int wp_gpio) | |
de941241 | 1294 | { |
93bfd616 | 1295 | struct mmc *mmc; |
ae000e23 | 1296 | struct omap_hsmmc_data *priv; |
93bfd616 PA |
1297 | struct mmc_config *cfg; |
1298 | uint host_caps_val; | |
1299 | ||
ae000e23 JJH |
1300 | priv = malloc(sizeof(*priv)); |
1301 | if (priv == NULL) | |
93bfd616 | 1302 | return -1; |
de941241 | 1303 | |
5a20397b | 1304 | host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS; |
de941241 SG |
1305 | |
1306 | switch (dev_index) { | |
1307 | case 0: | |
ae000e23 | 1308 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE; |
de941241 | 1309 | break; |
1037d585 | 1310 | #ifdef OMAP_HSMMC2_BASE |
de941241 | 1311 | case 1: |
ae000e23 | 1312 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE; |
152ba363 | 1313 | #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ |
3891a54f | 1314 | defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \ |
3b68939f RQ |
1315 | defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \ |
1316 | defined(CONFIG_HSMMC2_8BIT) | |
152ba363 LP |
1317 | /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */ |
1318 | host_caps_val |= MMC_MODE_8BIT; | |
1319 | #endif | |
de941241 | 1320 | break; |
1037d585 TR |
1321 | #endif |
1322 | #ifdef OMAP_HSMMC3_BASE | |
de941241 | 1323 | case 2: |
ae000e23 | 1324 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE; |
3891a54f | 1325 | #if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT) |
152ba363 LP |
1326 | /* Enable 8-bit interface for eMMC on DRA7XX */ |
1327 | host_caps_val |= MMC_MODE_8BIT; | |
1328 | #endif | |
de941241 | 1329 | break; |
1037d585 | 1330 | #endif |
de941241 | 1331 | default: |
ae000e23 | 1332 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE; |
de941241 SG |
1333 | return 1; |
1334 | } | |
ab769f22 PA |
1335 | #ifdef OMAP_HSMMC_USE_GPIO |
1336 | /* on error gpio values are set to -1, which is what we want */ | |
ae000e23 JJH |
1337 | priv->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd"); |
1338 | priv->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp"); | |
ab769f22 | 1339 | #endif |
173ddc5b | 1340 | |
ae000e23 | 1341 | cfg = &priv->cfg; |
de941241 | 1342 | |
93bfd616 PA |
1343 | cfg->name = "OMAP SD/MMC"; |
1344 | cfg->ops = &omap_hsmmc_ops; | |
1345 | ||
1346 | cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; | |
1347 | cfg->host_caps = host_caps_val & ~host_caps_mask; | |
1348 | ||
1349 | cfg->f_min = 400000; | |
bbbc1ae9 JS |
1350 | |
1351 | if (f_max != 0) | |
93bfd616 | 1352 | cfg->f_max = f_max; |
bbbc1ae9 | 1353 | else { |
93bfd616 PA |
1354 | if (cfg->host_caps & MMC_MODE_HS) { |
1355 | if (cfg->host_caps & MMC_MODE_HS_52MHz) | |
1356 | cfg->f_max = 52000000; | |
bbbc1ae9 | 1357 | else |
93bfd616 | 1358 | cfg->f_max = 26000000; |
bbbc1ae9 | 1359 | } else |
93bfd616 | 1360 | cfg->f_max = 20000000; |
bbbc1ae9 | 1361 | } |
de941241 | 1362 | |
93bfd616 | 1363 | cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; |
8feafcc4 | 1364 | |
4ca9244d JR |
1365 | #if defined(CONFIG_OMAP34XX) |
1366 | /* | |
1367 | * Silicon revs 2.1 and older do not support multiblock transfers. | |
1368 | */ | |
1369 | if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21)) | |
93bfd616 | 1370 | cfg->b_max = 1; |
4ca9244d | 1371 | #endif |
2d28eeda | 1372 | |
ae000e23 | 1373 | mmc = mmc_create(cfg, priv); |
93bfd616 PA |
1374 | if (mmc == NULL) |
1375 | return -1; | |
de941241 SG |
1376 | |
1377 | return 0; | |
1378 | } | |
a9d6a7e2 | 1379 | #else |
33c1d77f KVA |
1380 | |
1381 | #ifdef CONFIG_IODELAY_RECALIBRATION | |
1382 | static struct pad_conf_entry * | |
1383 | omap_hsmmc_get_pad_conf_entry(const fdt32_t *pinctrl, int count) | |
1384 | { | |
1385 | int index = 0; | |
1386 | struct pad_conf_entry *padconf; | |
1387 | ||
1388 | padconf = (struct pad_conf_entry *)malloc(sizeof(*padconf) * count); | |
1389 | if (!padconf) { | |
1390 | debug("failed to allocate memory\n"); | |
1391 | return 0; | |
1392 | } | |
1393 | ||
1394 | while (index < count) { | |
1395 | padconf[index].offset = fdt32_to_cpu(pinctrl[2 * index]); | |
1396 | padconf[index].val = fdt32_to_cpu(pinctrl[2 * index + 1]); | |
1397 | index++; | |
1398 | } | |
1399 | ||
1400 | return padconf; | |
1401 | } | |
1402 | ||
1403 | static struct iodelay_cfg_entry * | |
1404 | omap_hsmmc_get_iodelay_cfg_entry(const fdt32_t *pinctrl, int count) | |
1405 | { | |
1406 | int index = 0; | |
1407 | struct iodelay_cfg_entry *iodelay; | |
1408 | ||
1409 | iodelay = (struct iodelay_cfg_entry *)malloc(sizeof(*iodelay) * count); | |
1410 | if (!iodelay) { | |
1411 | debug("failed to allocate memory\n"); | |
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | while (index < count) { | |
1416 | iodelay[index].offset = fdt32_to_cpu(pinctrl[3 * index]); | |
1417 | iodelay[index].a_delay = fdt32_to_cpu(pinctrl[3 * index + 1]); | |
1418 | iodelay[index].g_delay = fdt32_to_cpu(pinctrl[3 * index + 2]); | |
1419 | index++; | |
1420 | } | |
1421 | ||
1422 | return iodelay; | |
1423 | } | |
1424 | ||
1425 | static const fdt32_t *omap_hsmmc_get_pinctrl_entry(u32 phandle, | |
1426 | const char *name, int *len) | |
1427 | { | |
1428 | const void *fdt = gd->fdt_blob; | |
1429 | int offset; | |
1430 | const fdt32_t *pinctrl; | |
1431 | ||
1432 | offset = fdt_node_offset_by_phandle(fdt, phandle); | |
1433 | if (offset < 0) { | |
1434 | debug("failed to get pinctrl node %s.\n", | |
1435 | fdt_strerror(offset)); | |
1436 | return 0; | |
1437 | } | |
1438 | ||
1439 | pinctrl = fdt_getprop(fdt, offset, name, len); | |
1440 | if (!pinctrl) { | |
1441 | debug("failed to get property %s\n", name); | |
1442 | return 0; | |
1443 | } | |
1444 | ||
1445 | return pinctrl; | |
1446 | } | |
1447 | ||
1448 | static uint32_t omap_hsmmc_get_pad_conf_phandle(struct mmc *mmc, | |
1449 | char *prop_name) | |
1450 | { | |
1451 | const void *fdt = gd->fdt_blob; | |
1452 | const __be32 *phandle; | |
1453 | int node = dev_of_offset(mmc->dev); | |
1454 | ||
1455 | phandle = fdt_getprop(fdt, node, prop_name, NULL); | |
1456 | if (!phandle) { | |
1457 | debug("failed to get property %s\n", prop_name); | |
1458 | return 0; | |
1459 | } | |
1460 | ||
1461 | return fdt32_to_cpu(*phandle); | |
1462 | } | |
1463 | ||
1464 | static uint32_t omap_hsmmc_get_iodelay_phandle(struct mmc *mmc, | |
1465 | char *prop_name) | |
1466 | { | |
1467 | const void *fdt = gd->fdt_blob; | |
1468 | const __be32 *phandle; | |
1469 | int len; | |
1470 | int count; | |
1471 | int node = dev_of_offset(mmc->dev); | |
1472 | ||
1473 | phandle = fdt_getprop(fdt, node, prop_name, &len); | |
1474 | if (!phandle) { | |
1475 | debug("failed to get property %s\n", prop_name); | |
1476 | return 0; | |
1477 | } | |
1478 | ||
1479 | /* No manual mode iodelay values if count < 2 */ | |
1480 | count = len / sizeof(*phandle); | |
1481 | if (count < 2) | |
1482 | return 0; | |
1483 | ||
1484 | return fdt32_to_cpu(*(phandle + 1)); | |
1485 | } | |
1486 | ||
1487 | static struct pad_conf_entry * | |
1488 | omap_hsmmc_get_pad_conf(struct mmc *mmc, char *prop_name, int *npads) | |
1489 | { | |
1490 | int len; | |
1491 | int count; | |
1492 | struct pad_conf_entry *padconf; | |
1493 | u32 phandle; | |
1494 | const fdt32_t *pinctrl; | |
1495 | ||
1496 | phandle = omap_hsmmc_get_pad_conf_phandle(mmc, prop_name); | |
1497 | if (!phandle) | |
1498 | return ERR_PTR(-EINVAL); | |
1499 | ||
1500 | pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-single,pins", | |
1501 | &len); | |
1502 | if (!pinctrl) | |
1503 | return ERR_PTR(-EINVAL); | |
1504 | ||
1505 | count = (len / sizeof(*pinctrl)) / 2; | |
1506 | padconf = omap_hsmmc_get_pad_conf_entry(pinctrl, count); | |
1507 | if (!padconf) | |
1508 | return ERR_PTR(-EINVAL); | |
1509 | ||
1510 | *npads = count; | |
1511 | ||
1512 | return padconf; | |
1513 | } | |
1514 | ||
1515 | static struct iodelay_cfg_entry * | |
1516 | omap_hsmmc_get_iodelay(struct mmc *mmc, char *prop_name, int *niodelay) | |
1517 | { | |
1518 | int len; | |
1519 | int count; | |
1520 | struct iodelay_cfg_entry *iodelay; | |
1521 | u32 phandle; | |
1522 | const fdt32_t *pinctrl; | |
1523 | ||
1524 | phandle = omap_hsmmc_get_iodelay_phandle(mmc, prop_name); | |
1525 | /* Not all modes have manual mode iodelay values. So its not fatal */ | |
1526 | if (!phandle) | |
1527 | return 0; | |
1528 | ||
1529 | pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-pin-array", | |
1530 | &len); | |
1531 | if (!pinctrl) | |
1532 | return ERR_PTR(-EINVAL); | |
1533 | ||
1534 | count = (len / sizeof(*pinctrl)) / 3; | |
1535 | iodelay = omap_hsmmc_get_iodelay_cfg_entry(pinctrl, count); | |
1536 | if (!iodelay) | |
1537 | return ERR_PTR(-EINVAL); | |
1538 | ||
1539 | *niodelay = count; | |
1540 | ||
1541 | return iodelay; | |
1542 | } | |
1543 | ||
1544 | static struct omap_hsmmc_pinctrl_state * | |
1545 | omap_hsmmc_get_pinctrl_by_mode(struct mmc *mmc, char *mode) | |
1546 | { | |
1547 | int index; | |
1548 | int npads = 0; | |
1549 | int niodelays = 0; | |
1550 | const void *fdt = gd->fdt_blob; | |
1551 | int node = dev_of_offset(mmc->dev); | |
1552 | char prop_name[11]; | |
1553 | struct omap_hsmmc_pinctrl_state *pinctrl_state; | |
1554 | ||
1555 | pinctrl_state = (struct omap_hsmmc_pinctrl_state *) | |
1556 | malloc(sizeof(*pinctrl_state)); | |
1557 | if (!pinctrl_state) { | |
1558 | debug("failed to allocate memory\n"); | |
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | index = fdt_stringlist_search(fdt, node, "pinctrl-names", mode); | |
1563 | if (index < 0) { | |
1564 | debug("fail to find %s mode %s\n", mode, fdt_strerror(index)); | |
1565 | goto err_pinctrl_state; | |
1566 | } | |
1567 | ||
1568 | sprintf(prop_name, "pinctrl-%d", index); | |
1569 | ||
1570 | pinctrl_state->padconf = omap_hsmmc_get_pad_conf(mmc, prop_name, | |
1571 | &npads); | |
1572 | if (IS_ERR(pinctrl_state->padconf)) | |
1573 | goto err_pinctrl_state; | |
1574 | pinctrl_state->npads = npads; | |
1575 | ||
1576 | pinctrl_state->iodelay = omap_hsmmc_get_iodelay(mmc, prop_name, | |
1577 | &niodelays); | |
1578 | if (IS_ERR(pinctrl_state->iodelay)) | |
1579 | goto err_padconf; | |
1580 | pinctrl_state->niodelays = niodelays; | |
1581 | ||
1582 | return pinctrl_state; | |
1583 | ||
1584 | err_padconf: | |
1585 | kfree(pinctrl_state->padconf); | |
1586 | ||
1587 | err_pinctrl_state: | |
1588 | kfree(pinctrl_state); | |
1589 | return 0; | |
1590 | } | |
1591 | ||
2d28eeda KVA |
1592 | #define OMAP_HSMMC_SETUP_PINCTRL(capmask, mode) \ |
1593 | do { \ | |
1594 | struct omap_hsmmc_pinctrl_state *s = NULL; \ | |
1595 | char str[20]; \ | |
1596 | if (!(cfg->host_caps & capmask)) \ | |
1597 | break; \ | |
1598 | \ | |
1599 | if (priv->hw_rev) { \ | |
1600 | sprintf(str, "%s-%s", #mode, priv->hw_rev); \ | |
1601 | s = omap_hsmmc_get_pinctrl_by_mode(mmc, str); \ | |
1602 | } \ | |
1603 | \ | |
1604 | if (!s) \ | |
1605 | s = omap_hsmmc_get_pinctrl_by_mode(mmc, #mode); \ | |
1606 | \ | |
1607 | if (!s) { \ | |
1608 | debug("%s: no pinctrl for %s\n", \ | |
1609 | mmc->dev->name, #mode); \ | |
1610 | cfg->host_caps &= ~(capmask); \ | |
1611 | } else { \ | |
1612 | priv->mode##_pinctrl_state = s; \ | |
1613 | } \ | |
33c1d77f KVA |
1614 | } while (0) |
1615 | ||
1616 | static int omap_hsmmc_get_pinctrl_state(struct mmc *mmc) | |
1617 | { | |
1618 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
1619 | struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc); | |
1620 | struct omap_hsmmc_pinctrl_state *default_pinctrl; | |
1621 | ||
1622 | if (!(priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY)) | |
1623 | return 0; | |
1624 | ||
1625 | default_pinctrl = omap_hsmmc_get_pinctrl_by_mode(mmc, "default"); | |
1626 | if (!default_pinctrl) { | |
1627 | printf("no pinctrl state for default mode\n"); | |
1628 | return -EINVAL; | |
1629 | } | |
1630 | ||
1631 | priv->default_pinctrl_state = default_pinctrl; | |
1632 | ||
1633 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR104), sdr104); | |
1634 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR50), sdr50); | |
1635 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_DDR50), ddr50); | |
1636 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR25), sdr25); | |
1637 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR12), sdr12); | |
1638 | ||
1639 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_HS_200), hs200_1_8v); | |
1640 | OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_DDR_52), ddr_1_8v); | |
1641 | OMAP_HSMMC_SETUP_PINCTRL(MMC_MODE_HS, hs); | |
1642 | ||
1643 | return 0; | |
1644 | } | |
1645 | #endif | |
1646 | ||
2558c049 | 1647 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
2d28eeda KVA |
1648 | #ifdef CONFIG_OMAP54XX |
1649 | __weak const struct mmc_platform_fixups *platform_fixups_mmc(uint32_t addr) | |
1650 | { | |
1651 | return NULL; | |
1652 | } | |
1653 | #endif | |
1654 | ||
a9d6a7e2 M |
1655 | static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev) |
1656 | { | |
3d673ffc | 1657 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); |
33c1d77f KVA |
1658 | struct omap_mmc_of_data *of_data = (void *)dev_get_driver_data(dev); |
1659 | ||
3d673ffc | 1660 | struct mmc_config *cfg = &plat->cfg; |
2d28eeda KVA |
1661 | #ifdef CONFIG_OMAP54XX |
1662 | const struct mmc_platform_fixups *fixups; | |
1663 | #endif | |
a9d6a7e2 | 1664 | const void *fdt = gd->fdt_blob; |
e160f7d4 | 1665 | int node = dev_of_offset(dev); |
2d7482cf | 1666 | int ret; |
a9d6a7e2 | 1667 | |
a821c4af SG |
1668 | plat->base_addr = map_physmem(devfdt_get_addr(dev), |
1669 | sizeof(struct hsmmc *), | |
741726ae | 1670 | MAP_NOCACHE); |
a9d6a7e2 | 1671 | |
2d7482cf KVA |
1672 | ret = mmc_of_parse(dev, cfg); |
1673 | if (ret < 0) | |
1674 | return ret; | |
a9d6a7e2 | 1675 | |
2d7482cf | 1676 | cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS; |
a9d6a7e2 | 1677 | cfg->f_min = 400000; |
a9d6a7e2 M |
1678 | cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; |
1679 | cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; | |
b5944817 KVA |
1680 | if (fdtdec_get_bool(fdt, node, "ti,dual-volt")) |
1681 | plat->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT; | |
1682 | if (fdtdec_get_bool(fdt, node, "no-1-8-v")) | |
1683 | plat->controller_flags |= OMAP_HSMMC_NO_1_8_V; | |
33c1d77f KVA |
1684 | if (of_data) |
1685 | plat->controller_flags |= of_data->controller_flags; | |
a9d6a7e2 | 1686 | |
2d28eeda KVA |
1687 | #ifdef CONFIG_OMAP54XX |
1688 | fixups = platform_fixups_mmc(devfdt_get_addr(dev)); | |
1689 | if (fixups) { | |
1690 | plat->hw_rev = fixups->hw_rev; | |
1691 | cfg->host_caps &= ~fixups->unsupported_caps; | |
1692 | cfg->f_max = fixups->max_freq; | |
1693 | } | |
1694 | #endif | |
1695 | ||
4de2de51 | 1696 | #ifdef OMAP_HSMMC_USE_GPIO |
2558c049 | 1697 | plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted"); |
4de2de51 | 1698 | #endif |
a9d6a7e2 M |
1699 | |
1700 | return 0; | |
1701 | } | |
2558c049 | 1702 | #endif |
a9d6a7e2 | 1703 | |
17c9a1c1 JJH |
1704 | #ifdef CONFIG_BLK |
1705 | ||
1706 | static int omap_hsmmc_bind(struct udevice *dev) | |
1707 | { | |
1708 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); | |
1709 | ||
1710 | return mmc_bind(dev, &plat->mmc, &plat->cfg); | |
1711 | } | |
1712 | #endif | |
a9d6a7e2 M |
1713 | static int omap_hsmmc_probe(struct udevice *dev) |
1714 | { | |
3d673ffc | 1715 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); |
a9d6a7e2 M |
1716 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); |
1717 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
3d673ffc | 1718 | struct mmc_config *cfg = &plat->cfg; |
a9d6a7e2 | 1719 | struct mmc *mmc; |
33c1d77f KVA |
1720 | #ifdef CONFIG_IODELAY_RECALIBRATION |
1721 | int ret; | |
1722 | #endif | |
a9d6a7e2 | 1723 | |
a9d6a7e2 | 1724 | cfg->name = "OMAP SD/MMC"; |
2558c049 | 1725 | priv->base_addr = plat->base_addr; |
33c1d77f | 1726 | priv->controller_flags = plat->controller_flags; |
2d28eeda | 1727 | priv->hw_rev = plat->hw_rev; |
2558c049 LV |
1728 | #ifdef OMAP_HSMMC_USE_GPIO |
1729 | priv->cd_inverted = plat->cd_inverted; | |
1730 | #endif | |
a9d6a7e2 | 1731 | |
17c9a1c1 JJH |
1732 | #ifdef CONFIG_BLK |
1733 | mmc = &plat->mmc; | |
1734 | #else | |
a9d6a7e2 M |
1735 | mmc = mmc_create(cfg, priv); |
1736 | if (mmc == NULL) | |
1737 | return -1; | |
17c9a1c1 | 1738 | #endif |
a9d6a7e2 | 1739 | |
2558c049 | 1740 | #if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL) |
5cc6a245 M |
1741 | gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN); |
1742 | gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN); | |
1743 | #endif | |
1744 | ||
cffe5d86 | 1745 | mmc->dev = dev; |
a9d6a7e2 M |
1746 | upriv->mmc = mmc; |
1747 | ||
33c1d77f KVA |
1748 | #ifdef CONFIG_IODELAY_RECALIBRATION |
1749 | ret = omap_hsmmc_get_pinctrl_state(mmc); | |
1750 | /* | |
1751 | * disable high speed modes for the platforms that require IO delay | |
1752 | * and for which we don't have this information | |
1753 | */ | |
1754 | if ((ret < 0) && | |
1755 | (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY)) { | |
1756 | priv->controller_flags &= ~OMAP_HSMMC_REQUIRE_IODELAY; | |
1757 | cfg->host_caps &= ~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_DDR_52) | | |
1758 | UHS_CAPS); | |
1759 | } | |
1760 | #endif | |
1761 | ||
b5511d6c | 1762 | return omap_hsmmc_init_setup(mmc); |
a9d6a7e2 M |
1763 | } |
1764 | ||
2558c049 | 1765 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
33c1d77f KVA |
1766 | |
1767 | static const struct omap_mmc_of_data dra7_mmc_of_data = { | |
1768 | .controller_flags = OMAP_HSMMC_REQUIRE_IODELAY, | |
1769 | }; | |
1770 | ||
a9d6a7e2 | 1771 | static const struct udevice_id omap_hsmmc_ids[] = { |
741726ae JJH |
1772 | { .compatible = "ti,omap3-hsmmc" }, |
1773 | { .compatible = "ti,omap4-hsmmc" }, | |
1774 | { .compatible = "ti,am33xx-hsmmc" }, | |
33c1d77f | 1775 | { .compatible = "ti,dra7-hsmmc", .data = (ulong)&dra7_mmc_of_data }, |
a9d6a7e2 M |
1776 | { } |
1777 | }; | |
2558c049 | 1778 | #endif |
a9d6a7e2 M |
1779 | |
1780 | U_BOOT_DRIVER(omap_hsmmc) = { | |
1781 | .name = "omap_hsmmc", | |
1782 | .id = UCLASS_MMC, | |
2558c049 | 1783 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
a9d6a7e2 M |
1784 | .of_match = omap_hsmmc_ids, |
1785 | .ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata, | |
2558c049 LV |
1786 | .platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat), |
1787 | #endif | |
17c9a1c1 JJH |
1788 | #ifdef CONFIG_BLK |
1789 | .bind = omap_hsmmc_bind, | |
1790 | #endif | |
b5511d6c | 1791 | .ops = &omap_hsmmc_ops, |
a9d6a7e2 M |
1792 | .probe = omap_hsmmc_probe, |
1793 | .priv_auto_alloc_size = sizeof(struct omap_hsmmc_data), | |
cbcb1701 | 1794 | .flags = DM_FLAG_PRE_RELOC, |
a9d6a7e2 M |
1795 | }; |
1796 | #endif |