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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> | |
3b68939f RQ |
37 | #if !defined(CONFIG_SOC_KEYSTONE) |
38 | #include <asm/gpio.h> | |
96e0e7b3 | 39 | #include <asm/arch/sys_proto.h> |
3b68939f | 40 | #endif |
2a48b3a2 TR |
41 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
42 | #include <asm/arch/mux.h> | |
43 | #endif | |
a9d6a7e2 M |
44 | #include <dm.h> |
45 | ||
46 | DECLARE_GLOBAL_DATA_PTR; | |
de941241 | 47 | |
ab769f22 PA |
48 | /* simplify defines to OMAP_HSMMC_USE_GPIO */ |
49 | #if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \ | |
50 | (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT)) | |
51 | #define OMAP_HSMMC_USE_GPIO | |
52 | #else | |
53 | #undef OMAP_HSMMC_USE_GPIO | |
54 | #endif | |
55 | ||
25c719e2 GI |
56 | /* common definitions for all OMAPs */ |
57 | #define SYSCTL_SRC (1 << 25) | |
58 | #define SYSCTL_SRD (1 << 26) | |
59 | ||
cc22b0c0 NK |
60 | struct omap_hsmmc_data { |
61 | struct hsmmc *base_addr; | |
c4d660d4 | 62 | #if !CONFIG_IS_ENABLED(DM_MMC) |
93bfd616 | 63 | struct mmc_config cfg; |
3d673ffc | 64 | #endif |
48a2f114 | 65 | uint bus_width; |
5baf543e | 66 | uint clock; |
ab769f22 | 67 | #ifdef OMAP_HSMMC_USE_GPIO |
c4d660d4 | 68 | #if CONFIG_IS_ENABLED(DM_MMC) |
a9d6a7e2 M |
69 | struct gpio_desc cd_gpio; /* Change Detect GPIO */ |
70 | struct gpio_desc wp_gpio; /* Write Protect GPIO */ | |
71 | bool cd_inverted; | |
72 | #else | |
e874d5b0 | 73 | int cd_gpio; |
e3913f56 | 74 | int wp_gpio; |
ab769f22 | 75 | #endif |
a9d6a7e2 | 76 | #endif |
f0d53e88 KVA |
77 | u8 controller_flags; |
78 | #ifndef CONFIG_OMAP34XX | |
79 | struct omap_hsmmc_adma_desc *adma_desc_table; | |
80 | uint desc_slot; | |
81 | #endif | |
82 | }; | |
83 | ||
84 | #ifndef CONFIG_OMAP34XX | |
85 | struct omap_hsmmc_adma_desc { | |
86 | u8 attr; | |
87 | u8 reserved; | |
88 | u16 len; | |
89 | u32 addr; | |
cc22b0c0 NK |
90 | }; |
91 | ||
f0d53e88 KVA |
92 | #define ADMA_MAX_LEN 63488 |
93 | ||
94 | /* Decriptor table defines */ | |
95 | #define ADMA_DESC_ATTR_VALID BIT(0) | |
96 | #define ADMA_DESC_ATTR_END BIT(1) | |
97 | #define ADMA_DESC_ATTR_INT BIT(2) | |
98 | #define ADMA_DESC_ATTR_ACT1 BIT(4) | |
99 | #define ADMA_DESC_ATTR_ACT2 BIT(5) | |
100 | ||
101 | #define ADMA_DESC_TRANSFER_DATA ADMA_DESC_ATTR_ACT2 | |
102 | #define ADMA_DESC_LINK_DESC (ADMA_DESC_ATTR_ACT1 | ADMA_DESC_ATTR_ACT2) | |
103 | #endif | |
104 | ||
eb9a28f6 NM |
105 | /* If we fail after 1 second wait, something is really bad */ |
106 | #define MAX_RETRY_MS 1000 | |
107 | ||
f0d53e88 KVA |
108 | /* DMA transfers can take a long time if a lot a data is transferred. |
109 | * The timeout must take in account the amount of data. Let's assume | |
110 | * that the time will never exceed 333 ms per MB (in other word we assume | |
111 | * that the bandwidth is always above 3MB/s). | |
112 | */ | |
113 | #define DMA_TIMEOUT_PER_MB 333 | |
114 | #define OMAP_HSMMC_USE_ADMA BIT(2) | |
115 | ||
933efe64 S |
116 | static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size); |
117 | static int mmc_write_data(struct hsmmc *mmc_base, const char *buf, | |
118 | unsigned int siz); | |
5baf543e JJH |
119 | static void omap_hsmmc_start_clock(struct hsmmc *mmc_base); |
120 | static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base); | |
14fa2dd0 | 121 | |
ae000e23 JJH |
122 | static inline struct omap_hsmmc_data *omap_hsmmc_get_data(struct mmc *mmc) |
123 | { | |
c4d660d4 | 124 | #if CONFIG_IS_ENABLED(DM_MMC) |
ae000e23 JJH |
125 | return dev_get_priv(mmc->dev); |
126 | #else | |
127 | return (struct omap_hsmmc_data *)mmc->priv; | |
128 | #endif | |
3d673ffc JJH |
129 | } |
130 | static inline struct mmc_config *omap_hsmmc_get_cfg(struct mmc *mmc) | |
131 | { | |
c4d660d4 | 132 | #if CONFIG_IS_ENABLED(DM_MMC) |
3d673ffc JJH |
133 | struct omap_hsmmc_plat *plat = dev_get_platdata(mmc->dev); |
134 | return &plat->cfg; | |
135 | #else | |
136 | return &((struct omap_hsmmc_data *)mmc->priv)->cfg; | |
137 | #endif | |
ae000e23 JJH |
138 | } |
139 | ||
c4d660d4 | 140 | #if defined(OMAP_HSMMC_USE_GPIO) && !CONFIG_IS_ENABLED(DM_MMC) |
e874d5b0 NK |
141 | static int omap_mmc_setup_gpio_in(int gpio, const char *label) |
142 | { | |
5915a2ad | 143 | int ret; |
e874d5b0 | 144 | |
5915a2ad SG |
145 | #ifndef CONFIG_DM_GPIO |
146 | if (!gpio_is_valid(gpio)) | |
e874d5b0 | 147 | return -1; |
5915a2ad SG |
148 | #endif |
149 | ret = gpio_request(gpio, label); | |
150 | if (ret) | |
151 | return ret; | |
e874d5b0 | 152 | |
5915a2ad SG |
153 | ret = gpio_direction_input(gpio); |
154 | if (ret) | |
155 | return ret; | |
e874d5b0 NK |
156 | |
157 | return gpio; | |
158 | } | |
e874d5b0 NK |
159 | #endif |
160 | ||
750121c3 | 161 | static unsigned char mmc_board_init(struct mmc *mmc) |
de941241 | 162 | { |
de941241 | 163 | #if defined(CONFIG_OMAP34XX) |
3d673ffc | 164 | struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc); |
de941241 SG |
165 | t2_t *t2_base = (t2_t *)T2_BASE; |
166 | struct prcm *prcm_base = (struct prcm *)PRCM_BASE; | |
b1e725f2 | 167 | u32 pbias_lite; |
6aca17c9 AF |
168 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
169 | u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL); | |
170 | #endif | |
de941241 | 171 | |
b1e725f2 GI |
172 | pbias_lite = readl(&t2_base->pbias_lite); |
173 | pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0); | |
5bfdd1fc AA |
174 | #ifdef CONFIG_TARGET_OMAP3_CAIRO |
175 | /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */ | |
176 | pbias_lite &= ~PBIASLITEVMODE0; | |
6aca17c9 AF |
177 | #endif |
178 | #ifdef CONFIG_MMC_OMAP36XX_PINS | |
179 | if (get_cpu_family() == CPU_OMAP36XX) { | |
180 | /* Disable extended drain IO before changing PBIAS */ | |
181 | wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ; | |
182 | writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL); | |
183 | } | |
5bfdd1fc | 184 | #endif |
b1e725f2 | 185 | writel(pbias_lite, &t2_base->pbias_lite); |
aac5450e | 186 | |
b1e725f2 | 187 | writel(pbias_lite | PBIASLITEPWRDNZ1 | |
de941241 SG |
188 | PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0, |
189 | &t2_base->pbias_lite); | |
190 | ||
6aca17c9 AF |
191 | #ifdef CONFIG_MMC_OMAP36XX_PINS |
192 | if (get_cpu_family() == CPU_OMAP36XX) | |
193 | /* Enable extended drain IO after changing PBIAS */ | |
194 | writel(wkup_ctrl | | |
195 | OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ, | |
196 | OMAP34XX_CTRL_WKUP_CTRL); | |
197 | #endif | |
de941241 SG |
198 | writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL, |
199 | &t2_base->devconf0); | |
200 | ||
201 | writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL, | |
202 | &t2_base->devconf1); | |
203 | ||
bbbc1ae9 | 204 | /* Change from default of 52MHz to 26MHz if necessary */ |
3d673ffc | 205 | if (!(cfg->host_caps & MMC_MODE_HS_52MHz)) |
bbbc1ae9 JS |
206 | writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL, |
207 | &t2_base->ctl_prog_io1); | |
208 | ||
de941241 SG |
209 | writel(readl(&prcm_base->fclken1_core) | |
210 | EN_MMC1 | EN_MMC2 | EN_MMC3, | |
211 | &prcm_base->fclken1_core); | |
212 | ||
213 | writel(readl(&prcm_base->iclken1_core) | | |
214 | EN_MMC1 | EN_MMC2 | EN_MMC3, | |
215 | &prcm_base->iclken1_core); | |
216 | #endif | |
217 | ||
b4b06006 | 218 | #if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX) |
14fa2dd0 | 219 | /* PBIAS config needed for MMC1 only */ |
dc09127a | 220 | if (mmc_get_blk_desc(mmc)->devnum == 0) |
b4b06006 | 221 | vmmc_pbias_config(LDO_VOLT_3V0); |
dd23e59d | 222 | #endif |
de941241 SG |
223 | |
224 | return 0; | |
225 | } | |
226 | ||
933efe64 | 227 | void mmc_init_stream(struct hsmmc *mmc_base) |
de941241 | 228 | { |
eb9a28f6 | 229 | ulong start; |
de941241 SG |
230 | |
231 | writel(readl(&mmc_base->con) | INIT_INITSTREAM, &mmc_base->con); | |
232 | ||
233 | writel(MMC_CMD0, &mmc_base->cmd); | |
eb9a28f6 NM |
234 | start = get_timer(0); |
235 | while (!(readl(&mmc_base->stat) & CC_MASK)) { | |
236 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
237 | printf("%s: timedout waiting for cc!\n", __func__); | |
238 | return; | |
239 | } | |
240 | } | |
de941241 SG |
241 | writel(CC_MASK, &mmc_base->stat) |
242 | ; | |
243 | writel(MMC_CMD0, &mmc_base->cmd) | |
244 | ; | |
eb9a28f6 NM |
245 | start = get_timer(0); |
246 | while (!(readl(&mmc_base->stat) & CC_MASK)) { | |
247 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
248 | printf("%s: timedout waiting for cc2!\n", __func__); | |
249 | return; | |
250 | } | |
251 | } | |
de941241 SG |
252 | writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con); |
253 | } | |
254 | ||
ab769f22 | 255 | static int omap_hsmmc_init_setup(struct mmc *mmc) |
de941241 | 256 | { |
ae000e23 | 257 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
cc22b0c0 | 258 | struct hsmmc *mmc_base; |
de941241 SG |
259 | unsigned int reg_val; |
260 | unsigned int dsor; | |
eb9a28f6 | 261 | ulong start; |
de941241 | 262 | |
ae000e23 | 263 | mmc_base = priv->base_addr; |
14fa2dd0 | 264 | mmc_board_init(mmc); |
de941241 SG |
265 | |
266 | writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET, | |
267 | &mmc_base->sysconfig); | |
eb9a28f6 NM |
268 | start = get_timer(0); |
269 | while ((readl(&mmc_base->sysstatus) & RESETDONE) == 0) { | |
270 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
271 | printf("%s: timedout waiting for cc2!\n", __func__); | |
915ffa52 | 272 | return -ETIMEDOUT; |
eb9a28f6 NM |
273 | } |
274 | } | |
de941241 | 275 | writel(readl(&mmc_base->sysctl) | SOFTRESETALL, &mmc_base->sysctl); |
eb9a28f6 NM |
276 | start = get_timer(0); |
277 | while ((readl(&mmc_base->sysctl) & SOFTRESETALL) != 0x0) { | |
278 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
279 | printf("%s: timedout waiting for softresetall!\n", | |
280 | __func__); | |
915ffa52 | 281 | return -ETIMEDOUT; |
eb9a28f6 NM |
282 | } |
283 | } | |
f0d53e88 KVA |
284 | #ifndef CONFIG_OMAP34XX |
285 | reg_val = readl(&mmc_base->hl_hwinfo); | |
286 | if (reg_val & MADMA_EN) | |
287 | priv->controller_flags |= OMAP_HSMMC_USE_ADMA; | |
288 | #endif | |
de941241 SG |
289 | writel(DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0, &mmc_base->hctl); |
290 | writel(readl(&mmc_base->capa) | VS30_3V0SUP | VS18_1V8SUP, | |
291 | &mmc_base->capa); | |
292 | ||
293 | reg_val = readl(&mmc_base->con) & RESERVED_MASK; | |
294 | ||
295 | writel(CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH | CDP_ACTIVEHIGH | | |
296 | MIT_CTO | DW8_1_4BITMODE | MODE_FUNC | STR_BLOCK | | |
297 | HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN, &mmc_base->con); | |
298 | ||
299 | dsor = 240; | |
300 | mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK), | |
29171dcf | 301 | (ICE_STOP | DTO_15THDTO)); |
de941241 SG |
302 | mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK, |
303 | (dsor << CLKD_OFFSET) | ICE_OSCILLATE); | |
eb9a28f6 NM |
304 | start = get_timer(0); |
305 | while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) { | |
306 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
307 | printf("%s: timedout waiting for ics!\n", __func__); | |
915ffa52 | 308 | return -ETIMEDOUT; |
eb9a28f6 NM |
309 | } |
310 | } | |
de941241 SG |
311 | writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl); |
312 | ||
313 | writel(readl(&mmc_base->hctl) | SDBP_PWRON, &mmc_base->hctl); | |
314 | ||
315 | writel(IE_BADA | IE_CERR | IE_DEB | IE_DCRC | IE_DTO | IE_CIE | | |
f0d53e88 KVA |
316 | IE_CEB | IE_CCRC | IE_ADMAE | IE_CTO | IE_BRR | IE_BWR | IE_TC | |
317 | IE_CC, &mmc_base->ie); | |
de941241 SG |
318 | |
319 | mmc_init_stream(mmc_base); | |
320 | ||
321 | return 0; | |
322 | } | |
323 | ||
25c719e2 GI |
324 | /* |
325 | * MMC controller internal finite state machine reset | |
326 | * | |
327 | * Used to reset command or data internal state machines, using respectively | |
328 | * SRC or SRD bit of SYSCTL register | |
329 | */ | |
330 | static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit) | |
331 | { | |
332 | ulong start; | |
333 | ||
334 | mmc_reg_out(&mmc_base->sysctl, bit, bit); | |
335 | ||
61a6cc27 OT |
336 | /* |
337 | * CMD(DAT) lines reset procedures are slightly different | |
338 | * for OMAP3 and OMAP4(AM335x,OMAP5,DRA7xx). | |
339 | * According to OMAP3 TRM: | |
340 | * Set SRC(SRD) bit in MMCHS_SYSCTL register to 0x1 and wait until it | |
341 | * returns to 0x0. | |
342 | * According to OMAP4(AM335x,OMAP5,DRA7xx) TRMs, CMD(DATA) lines reset | |
343 | * procedure steps must be as follows: | |
344 | * 1. Initiate CMD(DAT) line reset by writing 0x1 to SRC(SRD) bit in | |
345 | * MMCHS_SYSCTL register (SD_SYSCTL for AM335x). | |
346 | * 2. Poll the SRC(SRD) bit until it is set to 0x1. | |
347 | * 3. Wait until the SRC (SRD) bit returns to 0x0 | |
348 | * (reset procedure is completed). | |
349 | */ | |
350 | #if defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ | |
dce55b93 | 351 | defined(CONFIG_AM33XX) || defined(CONFIG_AM43XX) |
61a6cc27 OT |
352 | if (!(readl(&mmc_base->sysctl) & bit)) { |
353 | start = get_timer(0); | |
354 | while (!(readl(&mmc_base->sysctl) & bit)) { | |
355 | if (get_timer(0) - start > MAX_RETRY_MS) | |
356 | return; | |
357 | } | |
358 | } | |
359 | #endif | |
25c719e2 GI |
360 | start = get_timer(0); |
361 | while ((readl(&mmc_base->sysctl) & bit) != 0) { | |
362 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
363 | printf("%s: timedout waiting for sysctl %x to clear\n", | |
364 | __func__, bit); | |
365 | return; | |
366 | } | |
367 | } | |
368 | } | |
f0d53e88 KVA |
369 | |
370 | #ifndef CONFIG_OMAP34XX | |
371 | static void omap_hsmmc_adma_desc(struct mmc *mmc, char *buf, u16 len, bool end) | |
372 | { | |
373 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
374 | struct omap_hsmmc_adma_desc *desc; | |
375 | u8 attr; | |
376 | ||
377 | desc = &priv->adma_desc_table[priv->desc_slot]; | |
378 | ||
379 | attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA; | |
380 | if (!end) | |
381 | priv->desc_slot++; | |
382 | else | |
383 | attr |= ADMA_DESC_ATTR_END; | |
384 | ||
385 | desc->len = len; | |
386 | desc->addr = (u32)buf; | |
387 | desc->reserved = 0; | |
388 | desc->attr = attr; | |
389 | } | |
390 | ||
391 | static void omap_hsmmc_prepare_adma_table(struct mmc *mmc, | |
392 | struct mmc_data *data) | |
393 | { | |
394 | uint total_len = data->blocksize * data->blocks; | |
395 | uint desc_count = DIV_ROUND_UP(total_len, ADMA_MAX_LEN); | |
396 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
397 | int i = desc_count; | |
398 | char *buf; | |
399 | ||
400 | priv->desc_slot = 0; | |
401 | priv->adma_desc_table = (struct omap_hsmmc_adma_desc *) | |
402 | memalign(ARCH_DMA_MINALIGN, desc_count * | |
403 | sizeof(struct omap_hsmmc_adma_desc)); | |
404 | ||
405 | if (data->flags & MMC_DATA_READ) | |
406 | buf = data->dest; | |
407 | else | |
408 | buf = (char *)data->src; | |
409 | ||
410 | while (--i) { | |
411 | omap_hsmmc_adma_desc(mmc, buf, ADMA_MAX_LEN, false); | |
412 | buf += ADMA_MAX_LEN; | |
413 | total_len -= ADMA_MAX_LEN; | |
414 | } | |
415 | ||
416 | omap_hsmmc_adma_desc(mmc, buf, total_len, true); | |
417 | ||
418 | flush_dcache_range((long)priv->adma_desc_table, | |
419 | (long)priv->adma_desc_table + | |
420 | ROUND(desc_count * | |
421 | sizeof(struct omap_hsmmc_adma_desc), | |
422 | ARCH_DMA_MINALIGN)); | |
423 | } | |
424 | ||
425 | static void omap_hsmmc_prepare_data(struct mmc *mmc, struct mmc_data *data) | |
426 | { | |
427 | struct hsmmc *mmc_base; | |
428 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
429 | u32 val; | |
430 | char *buf; | |
431 | ||
432 | mmc_base = priv->base_addr; | |
433 | omap_hsmmc_prepare_adma_table(mmc, data); | |
434 | ||
435 | if (data->flags & MMC_DATA_READ) | |
436 | buf = data->dest; | |
437 | else | |
438 | buf = (char *)data->src; | |
439 | ||
440 | val = readl(&mmc_base->hctl); | |
441 | val |= DMA_SELECT; | |
442 | writel(val, &mmc_base->hctl); | |
443 | ||
444 | val = readl(&mmc_base->con); | |
445 | val |= DMA_MASTER; | |
446 | writel(val, &mmc_base->con); | |
447 | ||
448 | writel((u32)priv->adma_desc_table, &mmc_base->admasal); | |
449 | ||
450 | flush_dcache_range((u32)buf, | |
451 | (u32)buf + | |
452 | ROUND(data->blocksize * data->blocks, | |
453 | ARCH_DMA_MINALIGN)); | |
454 | } | |
455 | ||
456 | static void omap_hsmmc_dma_cleanup(struct mmc *mmc) | |
457 | { | |
458 | struct hsmmc *mmc_base; | |
459 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
460 | u32 val; | |
461 | ||
462 | mmc_base = priv->base_addr; | |
463 | ||
464 | val = readl(&mmc_base->con); | |
465 | val &= ~DMA_MASTER; | |
466 | writel(val, &mmc_base->con); | |
467 | ||
468 | val = readl(&mmc_base->hctl); | |
469 | val &= ~DMA_SELECT; | |
470 | writel(val, &mmc_base->hctl); | |
471 | ||
472 | kfree(priv->adma_desc_table); | |
473 | } | |
474 | #else | |
475 | #define omap_hsmmc_adma_desc | |
476 | #define omap_hsmmc_prepare_adma_table | |
477 | #define omap_hsmmc_prepare_data | |
478 | #define omap_hsmmc_dma_cleanup | |
479 | #endif | |
480 | ||
c4d660d4 | 481 | #if !CONFIG_IS_ENABLED(DM_MMC) |
ab769f22 | 482 | static int omap_hsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, |
de941241 SG |
483 | struct mmc_data *data) |
484 | { | |
ae000e23 | 485 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
b5511d6c JJH |
486 | #else |
487 | static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, | |
488 | struct mmc_data *data) | |
489 | { | |
490 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
f0d53e88 KVA |
491 | #ifndef CONFIG_OMAP34XX |
492 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); | |
493 | struct mmc *mmc = upriv->mmc; | |
494 | #endif | |
b5511d6c | 495 | #endif |
cc22b0c0 | 496 | struct hsmmc *mmc_base; |
de941241 | 497 | unsigned int flags, mmc_stat; |
eb9a28f6 | 498 | ulong start; |
de941241 | 499 | |
ae000e23 | 500 | mmc_base = priv->base_addr; |
866bb984 KVA |
501 | |
502 | if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) | |
503 | return 0; | |
504 | ||
eb9a28f6 | 505 | start = get_timer(0); |
a7778f8f | 506 | while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) { |
eb9a28f6 | 507 | if (get_timer(0) - start > MAX_RETRY_MS) { |
a7778f8f TR |
508 | printf("%s: timedout waiting on cmd inhibit to clear\n", |
509 | __func__); | |
915ffa52 | 510 | return -ETIMEDOUT; |
eb9a28f6 NM |
511 | } |
512 | } | |
de941241 | 513 | writel(0xFFFFFFFF, &mmc_base->stat); |
eb9a28f6 NM |
514 | start = get_timer(0); |
515 | while (readl(&mmc_base->stat)) { | |
516 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
15ceb1de GI |
517 | printf("%s: timedout waiting for STAT (%x) to clear\n", |
518 | __func__, readl(&mmc_base->stat)); | |
915ffa52 | 519 | return -ETIMEDOUT; |
eb9a28f6 NM |
520 | } |
521 | } | |
de941241 SG |
522 | /* |
523 | * CMDREG | |
524 | * CMDIDX[13:8] : Command index | |
525 | * DATAPRNT[5] : Data Present Select | |
526 | * ENCMDIDX[4] : Command Index Check Enable | |
527 | * ENCMDCRC[3] : Command CRC Check Enable | |
528 | * RSPTYP[1:0] | |
529 | * 00 = No Response | |
530 | * 01 = Length 136 | |
531 | * 10 = Length 48 | |
532 | * 11 = Length 48 Check busy after response | |
533 | */ | |
534 | /* Delay added before checking the status of frq change | |
535 | * retry not supported by mmc.c(core file) | |
536 | */ | |
537 | if (cmd->cmdidx == SD_CMD_APP_SEND_SCR) | |
538 | udelay(50000); /* wait 50 ms */ | |
539 | ||
540 | if (!(cmd->resp_type & MMC_RSP_PRESENT)) | |
541 | flags = 0; | |
542 | else if (cmd->resp_type & MMC_RSP_136) | |
543 | flags = RSP_TYPE_LGHT136 | CICE_NOCHECK; | |
544 | else if (cmd->resp_type & MMC_RSP_BUSY) | |
545 | flags = RSP_TYPE_LGHT48B; | |
546 | else | |
547 | flags = RSP_TYPE_LGHT48; | |
548 | ||
549 | /* enable default flags */ | |
550 | flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK | | |
29171dcf KVA |
551 | MSBS_SGLEBLK); |
552 | flags &= ~(ACEN_ENABLE | BCE_ENABLE | DE_ENABLE); | |
de941241 SG |
553 | |
554 | if (cmd->resp_type & MMC_RSP_CRC) | |
555 | flags |= CCCE_CHECK; | |
556 | if (cmd->resp_type & MMC_RSP_OPCODE) | |
557 | flags |= CICE_CHECK; | |
558 | ||
559 | if (data) { | |
560 | if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) || | |
561 | (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) { | |
866bb984 | 562 | flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE); |
de941241 SG |
563 | data->blocksize = 512; |
564 | writel(data->blocksize | (data->blocks << 16), | |
565 | &mmc_base->blk); | |
566 | } else | |
567 | writel(data->blocksize | NBLK_STPCNT, &mmc_base->blk); | |
568 | ||
569 | if (data->flags & MMC_DATA_READ) | |
570 | flags |= (DP_DATA | DDIR_READ); | |
571 | else | |
572 | flags |= (DP_DATA | DDIR_WRITE); | |
f0d53e88 KVA |
573 | |
574 | #ifndef CONFIG_OMAP34XX | |
575 | if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && | |
576 | !mmc_is_tuning_cmd(cmd->cmdidx)) { | |
577 | omap_hsmmc_prepare_data(mmc, data); | |
578 | flags |= DE_ENABLE; | |
579 | } | |
580 | #endif | |
de941241 SG |
581 | } |
582 | ||
583 | writel(cmd->cmdarg, &mmc_base->arg); | |
152ba363 | 584 | udelay(20); /* To fix "No status update" error on eMMC */ |
de941241 SG |
585 | writel((cmd->cmdidx << 24) | flags, &mmc_base->cmd); |
586 | ||
eb9a28f6 | 587 | start = get_timer(0); |
de941241 SG |
588 | do { |
589 | mmc_stat = readl(&mmc_base->stat); | |
f0d53e88 | 590 | if (get_timer(start) > MAX_RETRY_MS) { |
eb9a28f6 | 591 | printf("%s : timeout: No status update\n", __func__); |
915ffa52 | 592 | return -ETIMEDOUT; |
eb9a28f6 NM |
593 | } |
594 | } while (!mmc_stat); | |
de941241 | 595 | |
25c719e2 GI |
596 | if ((mmc_stat & IE_CTO) != 0) { |
597 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC); | |
915ffa52 | 598 | return -ETIMEDOUT; |
25c719e2 | 599 | } else if ((mmc_stat & ERRI_MASK) != 0) |
de941241 SG |
600 | return -1; |
601 | ||
602 | if (mmc_stat & CC_MASK) { | |
603 | writel(CC_MASK, &mmc_base->stat); | |
604 | if (cmd->resp_type & MMC_RSP_PRESENT) { | |
605 | if (cmd->resp_type & MMC_RSP_136) { | |
606 | /* response type 2 */ | |
607 | cmd->response[3] = readl(&mmc_base->rsp10); | |
608 | cmd->response[2] = readl(&mmc_base->rsp32); | |
609 | cmd->response[1] = readl(&mmc_base->rsp54); | |
610 | cmd->response[0] = readl(&mmc_base->rsp76); | |
611 | } else | |
612 | /* response types 1, 1b, 3, 4, 5, 6 */ | |
613 | cmd->response[0] = readl(&mmc_base->rsp10); | |
614 | } | |
615 | } | |
616 | ||
f0d53e88 KVA |
617 | #ifndef CONFIG_OMAP34XX |
618 | if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && data && | |
619 | !mmc_is_tuning_cmd(cmd->cmdidx)) { | |
620 | u32 sz_mb, timeout; | |
621 | ||
622 | if (mmc_stat & IE_ADMAE) { | |
623 | omap_hsmmc_dma_cleanup(mmc); | |
624 | return -EIO; | |
625 | } | |
626 | ||
627 | sz_mb = DIV_ROUND_UP(data->blocksize * data->blocks, 1 << 20); | |
628 | timeout = sz_mb * DMA_TIMEOUT_PER_MB; | |
629 | if (timeout < MAX_RETRY_MS) | |
630 | timeout = MAX_RETRY_MS; | |
631 | ||
632 | start = get_timer(0); | |
633 | do { | |
634 | mmc_stat = readl(&mmc_base->stat); | |
635 | if (mmc_stat & TC_MASK) { | |
636 | writel(readl(&mmc_base->stat) | TC_MASK, | |
637 | &mmc_base->stat); | |
638 | break; | |
639 | } | |
640 | if (get_timer(start) > timeout) { | |
641 | printf("%s : DMA timeout: No status update\n", | |
642 | __func__); | |
643 | return -ETIMEDOUT; | |
644 | } | |
645 | } while (1); | |
646 | ||
647 | omap_hsmmc_dma_cleanup(mmc); | |
648 | return 0; | |
649 | } | |
650 | #endif | |
651 | ||
de941241 SG |
652 | if (data && (data->flags & MMC_DATA_READ)) { |
653 | mmc_read_data(mmc_base, data->dest, | |
654 | data->blocksize * data->blocks); | |
655 | } else if (data && (data->flags & MMC_DATA_WRITE)) { | |
656 | mmc_write_data(mmc_base, data->src, | |
657 | data->blocksize * data->blocks); | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
933efe64 | 662 | static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size) |
de941241 SG |
663 | { |
664 | unsigned int *output_buf = (unsigned int *)buf; | |
665 | unsigned int mmc_stat; | |
666 | unsigned int count; | |
667 | ||
668 | /* | |
669 | * Start Polled Read | |
670 | */ | |
671 | count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size; | |
672 | count /= 4; | |
673 | ||
674 | while (size) { | |
eb9a28f6 | 675 | ulong start = get_timer(0); |
de941241 SG |
676 | do { |
677 | mmc_stat = readl(&mmc_base->stat); | |
eb9a28f6 NM |
678 | if (get_timer(0) - start > MAX_RETRY_MS) { |
679 | printf("%s: timedout waiting for status!\n", | |
680 | __func__); | |
915ffa52 | 681 | return -ETIMEDOUT; |
eb9a28f6 | 682 | } |
de941241 SG |
683 | } while (mmc_stat == 0); |
684 | ||
25c719e2 GI |
685 | if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0) |
686 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
687 | ||
de941241 SG |
688 | if ((mmc_stat & ERRI_MASK) != 0) |
689 | return 1; | |
690 | ||
691 | if (mmc_stat & BRR_MASK) { | |
692 | unsigned int k; | |
693 | ||
694 | writel(readl(&mmc_base->stat) | BRR_MASK, | |
695 | &mmc_base->stat); | |
696 | for (k = 0; k < count; k++) { | |
697 | *output_buf = readl(&mmc_base->data); | |
698 | output_buf++; | |
699 | } | |
700 | size -= (count*4); | |
701 | } | |
702 | ||
703 | if (mmc_stat & BWR_MASK) | |
704 | writel(readl(&mmc_base->stat) | BWR_MASK, | |
705 | &mmc_base->stat); | |
706 | ||
707 | if (mmc_stat & TC_MASK) { | |
708 | writel(readl(&mmc_base->stat) | TC_MASK, | |
709 | &mmc_base->stat); | |
710 | break; | |
711 | } | |
712 | } | |
713 | return 0; | |
714 | } | |
715 | ||
933efe64 S |
716 | static int mmc_write_data(struct hsmmc *mmc_base, const char *buf, |
717 | unsigned int size) | |
de941241 SG |
718 | { |
719 | unsigned int *input_buf = (unsigned int *)buf; | |
720 | unsigned int mmc_stat; | |
721 | unsigned int count; | |
722 | ||
723 | /* | |
152ba363 | 724 | * Start Polled Write |
de941241 SG |
725 | */ |
726 | count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size; | |
727 | count /= 4; | |
728 | ||
729 | while (size) { | |
eb9a28f6 | 730 | ulong start = get_timer(0); |
de941241 SG |
731 | do { |
732 | mmc_stat = readl(&mmc_base->stat); | |
eb9a28f6 NM |
733 | if (get_timer(0) - start > MAX_RETRY_MS) { |
734 | printf("%s: timedout waiting for status!\n", | |
735 | __func__); | |
915ffa52 | 736 | return -ETIMEDOUT; |
eb9a28f6 | 737 | } |
de941241 SG |
738 | } while (mmc_stat == 0); |
739 | ||
25c719e2 GI |
740 | if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0) |
741 | mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD); | |
742 | ||
de941241 SG |
743 | if ((mmc_stat & ERRI_MASK) != 0) |
744 | return 1; | |
745 | ||
746 | if (mmc_stat & BWR_MASK) { | |
747 | unsigned int k; | |
748 | ||
749 | writel(readl(&mmc_base->stat) | BWR_MASK, | |
750 | &mmc_base->stat); | |
751 | for (k = 0; k < count; k++) { | |
752 | writel(*input_buf, &mmc_base->data); | |
753 | input_buf++; | |
754 | } | |
755 | size -= (count*4); | |
756 | } | |
757 | ||
758 | if (mmc_stat & BRR_MASK) | |
759 | writel(readl(&mmc_base->stat) | BRR_MASK, | |
760 | &mmc_base->stat); | |
761 | ||
762 | if (mmc_stat & TC_MASK) { | |
763 | writel(readl(&mmc_base->stat) | TC_MASK, | |
764 | &mmc_base->stat); | |
765 | break; | |
766 | } | |
767 | } | |
768 | return 0; | |
769 | } | |
770 | ||
5baf543e JJH |
771 | static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base) |
772 | { | |
773 | writel(readl(&mmc_base->sysctl) & ~CEN_ENABLE, &mmc_base->sysctl); | |
774 | } | |
775 | ||
776 | static void omap_hsmmc_start_clock(struct hsmmc *mmc_base) | |
777 | { | |
778 | writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl); | |
779 | } | |
780 | ||
781 | static void omap_hsmmc_set_clock(struct mmc *mmc) | |
782 | { | |
783 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
784 | struct hsmmc *mmc_base; | |
785 | unsigned int dsor = 0; | |
786 | ulong start; | |
787 | ||
788 | mmc_base = priv->base_addr; | |
789 | omap_hsmmc_stop_clock(mmc_base); | |
790 | ||
791 | /* TODO: Is setting DTO required here? */ | |
792 | mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK), | |
793 | (ICE_STOP | DTO_15THDTO)); | |
794 | ||
795 | if (mmc->clock != 0) { | |
796 | dsor = DIV_ROUND_UP(MMC_CLOCK_REFERENCE * 1000000, mmc->clock); | |
797 | if (dsor > CLKD_MAX) | |
798 | dsor = CLKD_MAX; | |
799 | } else { | |
800 | dsor = CLKD_MAX; | |
801 | } | |
802 | ||
803 | mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK, | |
804 | (dsor << CLKD_OFFSET) | ICE_OSCILLATE); | |
805 | ||
806 | start = get_timer(0); | |
807 | while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) { | |
808 | if (get_timer(0) - start > MAX_RETRY_MS) { | |
809 | printf("%s: timedout waiting for ics!\n", __func__); | |
810 | return; | |
811 | } | |
812 | } | |
813 | ||
814 | priv->clock = mmc->clock; | |
815 | omap_hsmmc_start_clock(mmc_base); | |
816 | } | |
817 | ||
48a2f114 | 818 | static void omap_hsmmc_set_bus_width(struct mmc *mmc) |
de941241 | 819 | { |
ae000e23 | 820 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
cc22b0c0 | 821 | struct hsmmc *mmc_base; |
de941241 | 822 | |
ae000e23 | 823 | mmc_base = priv->base_addr; |
de941241 SG |
824 | /* configue bus width */ |
825 | switch (mmc->bus_width) { | |
826 | case 8: | |
827 | writel(readl(&mmc_base->con) | DTW_8_BITMODE, | |
828 | &mmc_base->con); | |
829 | break; | |
830 | ||
831 | case 4: | |
832 | writel(readl(&mmc_base->con) & ~DTW_8_BITMODE, | |
833 | &mmc_base->con); | |
834 | writel(readl(&mmc_base->hctl) | DTW_4_BITMODE, | |
835 | &mmc_base->hctl); | |
836 | break; | |
837 | ||
838 | case 1: | |
839 | default: | |
840 | writel(readl(&mmc_base->con) & ~DTW_8_BITMODE, | |
841 | &mmc_base->con); | |
842 | writel(readl(&mmc_base->hctl) & ~DTW_4_BITMODE, | |
843 | &mmc_base->hctl); | |
844 | break; | |
845 | } | |
846 | ||
48a2f114 KVA |
847 | priv->bus_width = mmc->bus_width; |
848 | } | |
849 | ||
850 | #if !CONFIG_IS_ENABLED(DM_MMC) | |
851 | static int omap_hsmmc_set_ios(struct mmc *mmc) | |
852 | { | |
853 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); | |
854 | #else | |
855 | static int omap_hsmmc_set_ios(struct udevice *dev) | |
856 | { | |
857 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
858 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); | |
859 | struct mmc *mmc = upriv->mmc; | |
860 | #endif | |
861 | ||
862 | if (priv->bus_width != mmc->bus_width) | |
863 | omap_hsmmc_set_bus_width(mmc); | |
864 | ||
5baf543e JJH |
865 | if (priv->clock != mmc->clock) |
866 | omap_hsmmc_set_clock(mmc); | |
07b0b9c0 JC |
867 | |
868 | return 0; | |
de941241 SG |
869 | } |
870 | ||
ab769f22 | 871 | #ifdef OMAP_HSMMC_USE_GPIO |
c4d660d4 | 872 | #if CONFIG_IS_ENABLED(DM_MMC) |
b5511d6c | 873 | static int omap_hsmmc_getcd(struct udevice *dev) |
a9d6a7e2 | 874 | { |
b5511d6c | 875 | struct omap_hsmmc_data *priv = dev_get_priv(dev); |
a9d6a7e2 M |
876 | int value; |
877 | ||
878 | value = dm_gpio_get_value(&priv->cd_gpio); | |
879 | /* if no CD return as 1 */ | |
880 | if (value < 0) | |
881 | return 1; | |
882 | ||
883 | if (priv->cd_inverted) | |
884 | return !value; | |
885 | return value; | |
886 | } | |
887 | ||
b5511d6c | 888 | static int omap_hsmmc_getwp(struct udevice *dev) |
a9d6a7e2 | 889 | { |
b5511d6c | 890 | struct omap_hsmmc_data *priv = dev_get_priv(dev); |
a9d6a7e2 M |
891 | int value; |
892 | ||
893 | value = dm_gpio_get_value(&priv->wp_gpio); | |
894 | /* if no WP return as 0 */ | |
895 | if (value < 0) | |
896 | return 0; | |
897 | return value; | |
898 | } | |
899 | #else | |
ab769f22 PA |
900 | static int omap_hsmmc_getcd(struct mmc *mmc) |
901 | { | |
ae000e23 | 902 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
ab769f22 PA |
903 | int cd_gpio; |
904 | ||
905 | /* if no CD return as 1 */ | |
ae000e23 | 906 | cd_gpio = priv->cd_gpio; |
ab769f22 PA |
907 | if (cd_gpio < 0) |
908 | return 1; | |
909 | ||
0b03a931 IG |
910 | /* NOTE: assumes card detect signal is active-low */ |
911 | return !gpio_get_value(cd_gpio); | |
ab769f22 PA |
912 | } |
913 | ||
914 | static int omap_hsmmc_getwp(struct mmc *mmc) | |
915 | { | |
ae000e23 | 916 | struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc); |
ab769f22 PA |
917 | int wp_gpio; |
918 | ||
919 | /* if no WP return as 0 */ | |
ae000e23 | 920 | wp_gpio = priv->wp_gpio; |
ab769f22 PA |
921 | if (wp_gpio < 0) |
922 | return 0; | |
923 | ||
0b03a931 | 924 | /* NOTE: assumes write protect signal is active-high */ |
ab769f22 PA |
925 | return gpio_get_value(wp_gpio); |
926 | } | |
927 | #endif | |
a9d6a7e2 | 928 | #endif |
ab769f22 | 929 | |
c4d660d4 | 930 | #if CONFIG_IS_ENABLED(DM_MMC) |
b5511d6c JJH |
931 | static const struct dm_mmc_ops omap_hsmmc_ops = { |
932 | .send_cmd = omap_hsmmc_send_cmd, | |
933 | .set_ios = omap_hsmmc_set_ios, | |
934 | #ifdef OMAP_HSMMC_USE_GPIO | |
935 | .get_cd = omap_hsmmc_getcd, | |
936 | .get_wp = omap_hsmmc_getwp, | |
937 | #endif | |
938 | }; | |
939 | #else | |
ab769f22 PA |
940 | static const struct mmc_ops omap_hsmmc_ops = { |
941 | .send_cmd = omap_hsmmc_send_cmd, | |
942 | .set_ios = omap_hsmmc_set_ios, | |
943 | .init = omap_hsmmc_init_setup, | |
944 | #ifdef OMAP_HSMMC_USE_GPIO | |
945 | .getcd = omap_hsmmc_getcd, | |
946 | .getwp = omap_hsmmc_getwp, | |
947 | #endif | |
948 | }; | |
b5511d6c | 949 | #endif |
ab769f22 | 950 | |
c4d660d4 | 951 | #if !CONFIG_IS_ENABLED(DM_MMC) |
e3913f56 NK |
952 | int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio, |
953 | int wp_gpio) | |
de941241 | 954 | { |
93bfd616 | 955 | struct mmc *mmc; |
ae000e23 | 956 | struct omap_hsmmc_data *priv; |
93bfd616 PA |
957 | struct mmc_config *cfg; |
958 | uint host_caps_val; | |
959 | ||
ae000e23 JJH |
960 | priv = malloc(sizeof(*priv)); |
961 | if (priv == NULL) | |
93bfd616 | 962 | return -1; |
de941241 | 963 | |
5a20397b | 964 | host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS; |
de941241 SG |
965 | |
966 | switch (dev_index) { | |
967 | case 0: | |
ae000e23 | 968 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE; |
de941241 | 969 | break; |
1037d585 | 970 | #ifdef OMAP_HSMMC2_BASE |
de941241 | 971 | case 1: |
ae000e23 | 972 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE; |
152ba363 | 973 | #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \ |
3891a54f | 974 | defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \ |
3b68939f RQ |
975 | defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \ |
976 | defined(CONFIG_HSMMC2_8BIT) | |
152ba363 LP |
977 | /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */ |
978 | host_caps_val |= MMC_MODE_8BIT; | |
979 | #endif | |
de941241 | 980 | break; |
1037d585 TR |
981 | #endif |
982 | #ifdef OMAP_HSMMC3_BASE | |
de941241 | 983 | case 2: |
ae000e23 | 984 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE; |
3891a54f | 985 | #if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT) |
152ba363 LP |
986 | /* Enable 8-bit interface for eMMC on DRA7XX */ |
987 | host_caps_val |= MMC_MODE_8BIT; | |
988 | #endif | |
de941241 | 989 | break; |
1037d585 | 990 | #endif |
de941241 | 991 | default: |
ae000e23 | 992 | priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE; |
de941241 SG |
993 | return 1; |
994 | } | |
ab769f22 PA |
995 | #ifdef OMAP_HSMMC_USE_GPIO |
996 | /* on error gpio values are set to -1, which is what we want */ | |
ae000e23 JJH |
997 | priv->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd"); |
998 | priv->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp"); | |
ab769f22 | 999 | #endif |
173ddc5b | 1000 | |
ae000e23 | 1001 | cfg = &priv->cfg; |
de941241 | 1002 | |
93bfd616 PA |
1003 | cfg->name = "OMAP SD/MMC"; |
1004 | cfg->ops = &omap_hsmmc_ops; | |
1005 | ||
1006 | cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; | |
1007 | cfg->host_caps = host_caps_val & ~host_caps_mask; | |
1008 | ||
1009 | cfg->f_min = 400000; | |
bbbc1ae9 JS |
1010 | |
1011 | if (f_max != 0) | |
93bfd616 | 1012 | cfg->f_max = f_max; |
bbbc1ae9 | 1013 | else { |
93bfd616 PA |
1014 | if (cfg->host_caps & MMC_MODE_HS) { |
1015 | if (cfg->host_caps & MMC_MODE_HS_52MHz) | |
1016 | cfg->f_max = 52000000; | |
bbbc1ae9 | 1017 | else |
93bfd616 | 1018 | cfg->f_max = 26000000; |
bbbc1ae9 | 1019 | } else |
93bfd616 | 1020 | cfg->f_max = 20000000; |
bbbc1ae9 | 1021 | } |
de941241 | 1022 | |
93bfd616 | 1023 | cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; |
8feafcc4 | 1024 | |
4ca9244d JR |
1025 | #if defined(CONFIG_OMAP34XX) |
1026 | /* | |
1027 | * Silicon revs 2.1 and older do not support multiblock transfers. | |
1028 | */ | |
1029 | if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21)) | |
93bfd616 | 1030 | cfg->b_max = 1; |
4ca9244d | 1031 | #endif |
ae000e23 | 1032 | mmc = mmc_create(cfg, priv); |
93bfd616 PA |
1033 | if (mmc == NULL) |
1034 | return -1; | |
de941241 SG |
1035 | |
1036 | return 0; | |
1037 | } | |
a9d6a7e2 | 1038 | #else |
2558c049 | 1039 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
a9d6a7e2 M |
1040 | static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev) |
1041 | { | |
3d673ffc JJH |
1042 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); |
1043 | struct mmc_config *cfg = &plat->cfg; | |
a9d6a7e2 | 1044 | const void *fdt = gd->fdt_blob; |
e160f7d4 | 1045 | int node = dev_of_offset(dev); |
a9d6a7e2 M |
1046 | int val; |
1047 | ||
a821c4af SG |
1048 | plat->base_addr = map_physmem(devfdt_get_addr(dev), |
1049 | sizeof(struct hsmmc *), | |
741726ae | 1050 | MAP_NOCACHE); |
a9d6a7e2 M |
1051 | |
1052 | cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS; | |
1053 | val = fdtdec_get_int(fdt, node, "bus-width", -1); | |
1054 | if (val < 0) { | |
1055 | printf("error: bus-width property missing\n"); | |
1056 | return -ENOENT; | |
1057 | } | |
1058 | ||
1059 | switch (val) { | |
1060 | case 0x8: | |
1061 | cfg->host_caps |= MMC_MODE_8BIT; | |
1062 | case 0x4: | |
1063 | cfg->host_caps |= MMC_MODE_4BIT; | |
1064 | break; | |
1065 | default: | |
1066 | printf("error: invalid bus-width property\n"); | |
1067 | return -ENOENT; | |
1068 | } | |
1069 | ||
1070 | cfg->f_min = 400000; | |
1071 | cfg->f_max = fdtdec_get_int(fdt, node, "max-frequency", 52000000); | |
1072 | cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195; | |
1073 | cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; | |
1074 | ||
4de2de51 | 1075 | #ifdef OMAP_HSMMC_USE_GPIO |
2558c049 | 1076 | plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted"); |
4de2de51 | 1077 | #endif |
a9d6a7e2 M |
1078 | |
1079 | return 0; | |
1080 | } | |
2558c049 | 1081 | #endif |
a9d6a7e2 | 1082 | |
17c9a1c1 JJH |
1083 | #ifdef CONFIG_BLK |
1084 | ||
1085 | static int omap_hsmmc_bind(struct udevice *dev) | |
1086 | { | |
1087 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); | |
1088 | ||
1089 | return mmc_bind(dev, &plat->mmc, &plat->cfg); | |
1090 | } | |
1091 | #endif | |
a9d6a7e2 M |
1092 | static int omap_hsmmc_probe(struct udevice *dev) |
1093 | { | |
3d673ffc | 1094 | struct omap_hsmmc_plat *plat = dev_get_platdata(dev); |
a9d6a7e2 M |
1095 | struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); |
1096 | struct omap_hsmmc_data *priv = dev_get_priv(dev); | |
3d673ffc | 1097 | struct mmc_config *cfg = &plat->cfg; |
a9d6a7e2 M |
1098 | struct mmc *mmc; |
1099 | ||
a9d6a7e2 | 1100 | cfg->name = "OMAP SD/MMC"; |
2558c049 LV |
1101 | priv->base_addr = plat->base_addr; |
1102 | #ifdef OMAP_HSMMC_USE_GPIO | |
1103 | priv->cd_inverted = plat->cd_inverted; | |
1104 | #endif | |
a9d6a7e2 | 1105 | |
17c9a1c1 JJH |
1106 | #ifdef CONFIG_BLK |
1107 | mmc = &plat->mmc; | |
1108 | #else | |
a9d6a7e2 M |
1109 | mmc = mmc_create(cfg, priv); |
1110 | if (mmc == NULL) | |
1111 | return -1; | |
17c9a1c1 | 1112 | #endif |
a9d6a7e2 | 1113 | |
2558c049 | 1114 | #if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL) |
5cc6a245 M |
1115 | gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN); |
1116 | gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN); | |
1117 | #endif | |
1118 | ||
cffe5d86 | 1119 | mmc->dev = dev; |
a9d6a7e2 M |
1120 | upriv->mmc = mmc; |
1121 | ||
b5511d6c | 1122 | return omap_hsmmc_init_setup(mmc); |
a9d6a7e2 M |
1123 | } |
1124 | ||
2558c049 | 1125 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
a9d6a7e2 | 1126 | static const struct udevice_id omap_hsmmc_ids[] = { |
741726ae JJH |
1127 | { .compatible = "ti,omap3-hsmmc" }, |
1128 | { .compatible = "ti,omap4-hsmmc" }, | |
1129 | { .compatible = "ti,am33xx-hsmmc" }, | |
a9d6a7e2 M |
1130 | { } |
1131 | }; | |
2558c049 | 1132 | #endif |
a9d6a7e2 M |
1133 | |
1134 | U_BOOT_DRIVER(omap_hsmmc) = { | |
1135 | .name = "omap_hsmmc", | |
1136 | .id = UCLASS_MMC, | |
2558c049 | 1137 | #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA) |
a9d6a7e2 M |
1138 | .of_match = omap_hsmmc_ids, |
1139 | .ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata, | |
2558c049 LV |
1140 | .platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat), |
1141 | #endif | |
17c9a1c1 JJH |
1142 | #ifdef CONFIG_BLK |
1143 | .bind = omap_hsmmc_bind, | |
1144 | #endif | |
b5511d6c | 1145 | .ops = &omap_hsmmc_ops, |
a9d6a7e2 M |
1146 | .probe = omap_hsmmc_probe, |
1147 | .priv_auto_alloc_size = sizeof(struct omap_hsmmc_data), | |
cbcb1701 | 1148 | .flags = DM_FLAG_PRE_RELOC, |
a9d6a7e2 M |
1149 | }; |
1150 | #endif |