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Sukumar Ghoraide941242010-09-18 20:32:33 -07001/*
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>
Pantelis Antoniou93bfd612014-03-11 19:34:20 +020027#include <malloc.h>
Sukumar Ghoraide941242010-09-18 20:32:33 -070028#include <mmc.h>
29#include <part.h>
30#include <i2c.h>
31#include <twl4030.h>
Balaji T K14fa2dd2011-09-08 06:34:57 +000032#include <twl6030.h>
Nishanth Menoncb199102013-03-26 05:20:54 +000033#include <palmas.h>
Sukumar Ghoraide941242010-09-18 20:32:33 -070034#include <asm/io.h>
35#include <asm/arch/mmc_host_def.h>
Roger Quadros3b689392015-09-19 16:26:53 +053036#if !defined(CONFIG_SOC_KEYSTONE)
37#include <asm/gpio.h>
Dirk Behme96e0e7b2011-05-15 09:04:47 +000038#include <asm/arch/sys_proto.h>
Roger Quadros3b689392015-09-19 16:26:53 +053039#endif
Tom Rini2a48b3a2017-02-09 13:41:28 -050040#ifdef CONFIG_MMC_OMAP36XX_PINS
41#include <asm/arch/mux.h>
42#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +053043#include <dm.h>
44
45DECLARE_GLOBAL_DATA_PTR;
Sukumar Ghoraide941242010-09-18 20:32:33 -070046
Pantelis Antoniouab769f22014-02-26 19:28:45 +020047/* simplify defines to OMAP_HSMMC_USE_GPIO */
48#if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \
49 (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT))
50#define OMAP_HSMMC_USE_GPIO
51#else
52#undef OMAP_HSMMC_USE_GPIO
53#endif
54
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +000055/* common definitions for all OMAPs */
56#define SYSCTL_SRC (1 << 25)
57#define SYSCTL_SRD (1 << 26)
58
Adam Ford46831c12017-04-17 08:09:37 -050059struct omap2_mmc_platform_config {
60 u32 reg_offset;
61};
62
Nikita Kiryanovcc22b0c2012-12-03 02:19:43 +000063struct omap_hsmmc_data {
64 struct hsmmc *base_addr;
Simon Glassc4d660d2017-07-04 13:31:19 -060065#if !CONFIG_IS_ENABLED(DM_MMC)
Pantelis Antoniou93bfd612014-03-11 19:34:20 +020066 struct mmc_config cfg;
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +010067#endif
Pantelis Antoniouab769f22014-02-26 19:28:45 +020068#ifdef OMAP_HSMMC_USE_GPIO
Simon Glassc4d660d2017-07-04 13:31:19 -060069#if CONFIG_IS_ENABLED(DM_MMC)
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +053070 struct gpio_desc cd_gpio; /* Change Detect GPIO */
71 struct gpio_desc wp_gpio; /* Write Protect GPIO */
72 bool cd_inverted;
73#else
Nikita Kiryanove874d5b2012-12-03 02:19:44 +000074 int cd_gpio;
Nikita Kiryanove3913f52012-12-03 02:19:47 +000075 int wp_gpio;
Pantelis Antoniouab769f22014-02-26 19:28:45 +020076#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +053077#endif
Nikita Kiryanovcc22b0c2012-12-03 02:19:43 +000078};
79
Nishanth Menoneb9a28f2010-11-19 11:18:12 -050080/* If we fail after 1 second wait, something is really bad */
81#define MAX_RETRY_MS 1000
82
Sricharan933efe62011-11-15 09:49:53 -050083static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size);
84static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
85 unsigned int siz);
Balaji T K14fa2dd2011-09-08 06:34:57 +000086
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +010087static inline struct omap_hsmmc_data *omap_hsmmc_get_data(struct mmc *mmc)
88{
Simon Glassc4d660d2017-07-04 13:31:19 -060089#if CONFIG_IS_ENABLED(DM_MMC)
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +010090 return dev_get_priv(mmc->dev);
91#else
92 return (struct omap_hsmmc_data *)mmc->priv;
93#endif
94}
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +010095static inline struct mmc_config *omap_hsmmc_get_cfg(struct mmc *mmc)
96{
Simon Glassc4d660d2017-07-04 13:31:19 -060097#if CONFIG_IS_ENABLED(DM_MMC)
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +010098 struct omap_hsmmc_plat *plat = dev_get_platdata(mmc->dev);
99 return &plat->cfg;
100#else
101 return &((struct omap_hsmmc_data *)mmc->priv)->cfg;
102#endif
103}
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100104
Simon Glassc4d660d2017-07-04 13:31:19 -0600105#if defined(OMAP_HSMMC_USE_GPIO) && !CONFIG_IS_ENABLED(DM_MMC)
Nikita Kiryanove874d5b2012-12-03 02:19:44 +0000106static int omap_mmc_setup_gpio_in(int gpio, const char *label)
107{
Simon Glass5915a2a2014-10-22 21:37:09 -0600108 int ret;
109
110#ifndef CONFIG_DM_GPIO
Nikita Kiryanove874d5b2012-12-03 02:19:44 +0000111 if (!gpio_is_valid(gpio))
112 return -1;
Simon Glass5915a2a2014-10-22 21:37:09 -0600113#endif
114 ret = gpio_request(gpio, label);
115 if (ret)
116 return ret;
Nikita Kiryanove874d5b2012-12-03 02:19:44 +0000117
Simon Glass5915a2a2014-10-22 21:37:09 -0600118 ret = gpio_direction_input(gpio);
119 if (ret)
120 return ret;
Nikita Kiryanove874d5b2012-12-03 02:19:44 +0000121
122 return gpio;
123}
Nikita Kiryanove874d5b2012-12-03 02:19:44 +0000124#endif
125
Jeroen Hofstee750121c2014-07-12 21:24:08 +0200126static unsigned char mmc_board_init(struct mmc *mmc)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700127{
Sukumar Ghoraide941242010-09-18 20:32:33 -0700128#if defined(CONFIG_OMAP34XX)
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +0100129 struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700130 t2_t *t2_base = (t2_t *)T2_BASE;
131 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
Grazvydas Ignotasb1e725f2012-03-19 03:50:53 +0000132 u32 pbias_lite;
Adam Ford6aca17c2017-02-06 11:31:43 -0600133#ifdef CONFIG_MMC_OMAP36XX_PINS
134 u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL);
135#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700136
Grazvydas Ignotasb1e725f2012-03-19 03:50:53 +0000137 pbias_lite = readl(&t2_base->pbias_lite);
138 pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
Albert ARIBAUD \(3ADEV\)5bfdd1f2015-01-16 09:09:50 +0100139#ifdef CONFIG_TARGET_OMAP3_CAIRO
140 /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
141 pbias_lite &= ~PBIASLITEVMODE0;
142#endif
Adam Ford6aca17c2017-02-06 11:31:43 -0600143#ifdef CONFIG_MMC_OMAP36XX_PINS
144 if (get_cpu_family() == CPU_OMAP36XX) {
145 /* Disable extended drain IO before changing PBIAS */
146 wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ;
147 writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL);
148 }
149#endif
Grazvydas Ignotasb1e725f2012-03-19 03:50:53 +0000150 writel(pbias_lite, &t2_base->pbias_lite);
Paul Kocialkowskiaac54502014-11-08 20:55:47 +0100151
Grazvydas Ignotasb1e725f2012-03-19 03:50:53 +0000152 writel(pbias_lite | PBIASLITEPWRDNZ1 |
Sukumar Ghoraide941242010-09-18 20:32:33 -0700153 PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
154 &t2_base->pbias_lite);
155
Adam Ford6aca17c2017-02-06 11:31:43 -0600156#ifdef CONFIG_MMC_OMAP36XX_PINS
157 if (get_cpu_family() == CPU_OMAP36XX)
158 /* Enable extended drain IO after changing PBIAS */
159 writel(wkup_ctrl |
160 OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
161 OMAP34XX_CTRL_WKUP_CTRL);
162#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700163 writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
164 &t2_base->devconf0);
165
166 writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
167 &t2_base->devconf1);
168
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000169 /* Change from default of 52MHz to 26MHz if necessary */
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +0100170 if (!(cfg->host_caps & MMC_MODE_HS_52MHz))
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000171 writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL,
172 &t2_base->ctl_prog_io1);
173
Sukumar Ghoraide941242010-09-18 20:32:33 -0700174 writel(readl(&prcm_base->fclken1_core) |
175 EN_MMC1 | EN_MMC2 | EN_MMC3,
176 &prcm_base->fclken1_core);
177
178 writel(readl(&prcm_base->iclken1_core) |
179 EN_MMC1 | EN_MMC2 | EN_MMC3,
180 &prcm_base->iclken1_core);
181#endif
182
Lokesh Vutlab4b06002016-11-23 13:25:28 +0530183#if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)
Balaji T K14fa2dd2011-09-08 06:34:57 +0000184 /* PBIAS config needed for MMC1 only */
Jean-Jacques Hiblotdc091272017-03-22 16:00:32 +0100185 if (mmc_get_blk_desc(mmc)->devnum == 0)
Lokesh Vutlab4b06002016-11-23 13:25:28 +0530186 vmmc_pbias_config(LDO_VOLT_3V0);
Balaji T Kdd23e592012-03-12 02:25:49 +0000187#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700188
189 return 0;
190}
191
Sricharan933efe62011-11-15 09:49:53 -0500192void mmc_init_stream(struct hsmmc *mmc_base)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700193{
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500194 ulong start;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700195
196 writel(readl(&mmc_base->con) | INIT_INITSTREAM, &mmc_base->con);
197
198 writel(MMC_CMD0, &mmc_base->cmd);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500199 start = get_timer(0);
200 while (!(readl(&mmc_base->stat) & CC_MASK)) {
201 if (get_timer(0) - start > MAX_RETRY_MS) {
202 printf("%s: timedout waiting for cc!\n", __func__);
203 return;
204 }
205 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700206 writel(CC_MASK, &mmc_base->stat)
207 ;
208 writel(MMC_CMD0, &mmc_base->cmd)
209 ;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500210 start = get_timer(0);
211 while (!(readl(&mmc_base->stat) & CC_MASK)) {
212 if (get_timer(0) - start > MAX_RETRY_MS) {
213 printf("%s: timedout waiting for cc2!\n", __func__);
214 return;
215 }
216 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700217 writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con);
218}
219
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200220static int omap_hsmmc_init_setup(struct mmc *mmc)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700221{
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100222 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
Nikita Kiryanovcc22b0c2012-12-03 02:19:43 +0000223 struct hsmmc *mmc_base;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700224 unsigned int reg_val;
225 unsigned int dsor;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500226 ulong start;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700227
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100228 mmc_base = priv->base_addr;
Balaji T K14fa2dd2011-09-08 06:34:57 +0000229 mmc_board_init(mmc);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700230
231 writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET,
232 &mmc_base->sysconfig);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500233 start = get_timer(0);
234 while ((readl(&mmc_base->sysstatus) & RESETDONE) == 0) {
235 if (get_timer(0) - start > MAX_RETRY_MS) {
236 printf("%s: timedout waiting for cc2!\n", __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900237 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500238 }
239 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700240 writel(readl(&mmc_base->sysctl) | SOFTRESETALL, &mmc_base->sysctl);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500241 start = get_timer(0);
242 while ((readl(&mmc_base->sysctl) & SOFTRESETALL) != 0x0) {
243 if (get_timer(0) - start > MAX_RETRY_MS) {
244 printf("%s: timedout waiting for softresetall!\n",
245 __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900246 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500247 }
248 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700249 writel(DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0, &mmc_base->hctl);
250 writel(readl(&mmc_base->capa) | VS30_3V0SUP | VS18_1V8SUP,
251 &mmc_base->capa);
252
253 reg_val = readl(&mmc_base->con) & RESERVED_MASK;
254
255 writel(CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH | CDP_ACTIVEHIGH |
256 MIT_CTO | DW8_1_4BITMODE | MODE_FUNC | STR_BLOCK |
257 HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN, &mmc_base->con);
258
259 dsor = 240;
260 mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
261 (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
262 mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
263 (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500264 start = get_timer(0);
265 while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
266 if (get_timer(0) - start > MAX_RETRY_MS) {
267 printf("%s: timedout waiting for ics!\n", __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900268 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500269 }
270 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700271 writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
272
273 writel(readl(&mmc_base->hctl) | SDBP_PWRON, &mmc_base->hctl);
274
275 writel(IE_BADA | IE_CERR | IE_DEB | IE_DCRC | IE_DTO | IE_CIE |
276 IE_CEB | IE_CCRC | IE_CTO | IE_BRR | IE_BWR | IE_TC | IE_CC,
277 &mmc_base->ie);
278
279 mmc_init_stream(mmc_base);
280
281 return 0;
282}
283
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000284/*
285 * MMC controller internal finite state machine reset
286 *
287 * Used to reset command or data internal state machines, using respectively
288 * SRC or SRD bit of SYSCTL register
289 */
290static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit)
291{
292 ulong start;
293
294 mmc_reg_out(&mmc_base->sysctl, bit, bit);
295
Oleksandr Tyshchenko61a6cc22013-08-06 13:44:16 +0300296 /*
297 * CMD(DAT) lines reset procedures are slightly different
298 * for OMAP3 and OMAP4(AM335x,OMAP5,DRA7xx).
299 * According to OMAP3 TRM:
300 * Set SRC(SRD) bit in MMCHS_SYSCTL register to 0x1 and wait until it
301 * returns to 0x0.
302 * According to OMAP4(AM335x,OMAP5,DRA7xx) TRMs, CMD(DATA) lines reset
303 * procedure steps must be as follows:
304 * 1. Initiate CMD(DAT) line reset by writing 0x1 to SRC(SRD) bit in
305 * MMCHS_SYSCTL register (SD_SYSCTL for AM335x).
306 * 2. Poll the SRC(SRD) bit until it is set to 0x1.
307 * 3. Wait until the SRC (SRD) bit returns to 0x0
308 * (reset procedure is completed).
309 */
310#if defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
Nikita Kiryanovdce55b92015-07-30 23:56:20 +0300311 defined(CONFIG_AM33XX) || defined(CONFIG_AM43XX)
Oleksandr Tyshchenko61a6cc22013-08-06 13:44:16 +0300312 if (!(readl(&mmc_base->sysctl) & bit)) {
313 start = get_timer(0);
314 while (!(readl(&mmc_base->sysctl) & bit)) {
315 if (get_timer(0) - start > MAX_RETRY_MS)
316 return;
317 }
318 }
319#endif
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000320 start = get_timer(0);
321 while ((readl(&mmc_base->sysctl) & bit) != 0) {
322 if (get_timer(0) - start > MAX_RETRY_MS) {
323 printf("%s: timedout waiting for sysctl %x to clear\n",
324 __func__, bit);
325 return;
326 }
327 }
328}
Simon Glassc4d660d2017-07-04 13:31:19 -0600329#if !CONFIG_IS_ENABLED(DM_MMC)
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200330static int omap_hsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
Sukumar Ghoraide941242010-09-18 20:32:33 -0700331 struct mmc_data *data)
332{
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100333 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200334#else
335static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
336 struct mmc_data *data)
337{
338 struct omap_hsmmc_data *priv = dev_get_priv(dev);
339#endif
Nikita Kiryanovcc22b0c2012-12-03 02:19:43 +0000340 struct hsmmc *mmc_base;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700341 unsigned int flags, mmc_stat;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500342 ulong start;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700343
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100344 mmc_base = priv->base_addr;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500345 start = get_timer(0);
Tom Rinia7778f82012-01-30 11:22:25 +0000346 while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) {
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500347 if (get_timer(0) - start > MAX_RETRY_MS) {
Tom Rinia7778f82012-01-30 11:22:25 +0000348 printf("%s: timedout waiting on cmd inhibit to clear\n",
349 __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900350 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500351 }
352 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700353 writel(0xFFFFFFFF, &mmc_base->stat);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500354 start = get_timer(0);
355 while (readl(&mmc_base->stat)) {
356 if (get_timer(0) - start > MAX_RETRY_MS) {
Grazvydas Ignotas15ceb1d2012-03-19 12:11:43 +0000357 printf("%s: timedout waiting for STAT (%x) to clear\n",
358 __func__, readl(&mmc_base->stat));
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900359 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500360 }
361 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700362 /*
363 * CMDREG
364 * CMDIDX[13:8] : Command index
365 * DATAPRNT[5] : Data Present Select
366 * ENCMDIDX[4] : Command Index Check Enable
367 * ENCMDCRC[3] : Command CRC Check Enable
368 * RSPTYP[1:0]
369 * 00 = No Response
370 * 01 = Length 136
371 * 10 = Length 48
372 * 11 = Length 48 Check busy after response
373 */
374 /* Delay added before checking the status of frq change
375 * retry not supported by mmc.c(core file)
376 */
377 if (cmd->cmdidx == SD_CMD_APP_SEND_SCR)
378 udelay(50000); /* wait 50 ms */
379
380 if (!(cmd->resp_type & MMC_RSP_PRESENT))
381 flags = 0;
382 else if (cmd->resp_type & MMC_RSP_136)
383 flags = RSP_TYPE_LGHT136 | CICE_NOCHECK;
384 else if (cmd->resp_type & MMC_RSP_BUSY)
385 flags = RSP_TYPE_LGHT48B;
386 else
387 flags = RSP_TYPE_LGHT48;
388
389 /* enable default flags */
390 flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK |
391 MSBS_SGLEBLK | ACEN_DISABLE | BCE_DISABLE | DE_DISABLE);
392
393 if (cmd->resp_type & MMC_RSP_CRC)
394 flags |= CCCE_CHECK;
395 if (cmd->resp_type & MMC_RSP_OPCODE)
396 flags |= CICE_CHECK;
397
398 if (data) {
399 if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) ||
400 (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) {
401 flags |= (MSBS_MULTIBLK | BCE_ENABLE);
402 data->blocksize = 512;
403 writel(data->blocksize | (data->blocks << 16),
404 &mmc_base->blk);
405 } else
406 writel(data->blocksize | NBLK_STPCNT, &mmc_base->blk);
407
408 if (data->flags & MMC_DATA_READ)
409 flags |= (DP_DATA | DDIR_READ);
410 else
411 flags |= (DP_DATA | DDIR_WRITE);
412 }
413
414 writel(cmd->cmdarg, &mmc_base->arg);
Lubomir Popov152ba362013-08-14 18:59:18 +0300415 udelay(20); /* To fix "No status update" error on eMMC */
Sukumar Ghoraide941242010-09-18 20:32:33 -0700416 writel((cmd->cmdidx << 24) | flags, &mmc_base->cmd);
417
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500418 start = get_timer(0);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700419 do {
420 mmc_stat = readl(&mmc_base->stat);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500421 if (get_timer(0) - start > MAX_RETRY_MS) {
422 printf("%s : timeout: No status update\n", __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900423 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500424 }
425 } while (!mmc_stat);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700426
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000427 if ((mmc_stat & IE_CTO) != 0) {
428 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900429 return -ETIMEDOUT;
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000430 } else if ((mmc_stat & ERRI_MASK) != 0)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700431 return -1;
432
433 if (mmc_stat & CC_MASK) {
434 writel(CC_MASK, &mmc_base->stat);
435 if (cmd->resp_type & MMC_RSP_PRESENT) {
436 if (cmd->resp_type & MMC_RSP_136) {
437 /* response type 2 */
438 cmd->response[3] = readl(&mmc_base->rsp10);
439 cmd->response[2] = readl(&mmc_base->rsp32);
440 cmd->response[1] = readl(&mmc_base->rsp54);
441 cmd->response[0] = readl(&mmc_base->rsp76);
442 } else
443 /* response types 1, 1b, 3, 4, 5, 6 */
444 cmd->response[0] = readl(&mmc_base->rsp10);
445 }
446 }
447
448 if (data && (data->flags & MMC_DATA_READ)) {
449 mmc_read_data(mmc_base, data->dest,
450 data->blocksize * data->blocks);
451 } else if (data && (data->flags & MMC_DATA_WRITE)) {
452 mmc_write_data(mmc_base, data->src,
453 data->blocksize * data->blocks);
454 }
455 return 0;
456}
457
Sricharan933efe62011-11-15 09:49:53 -0500458static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700459{
460 unsigned int *output_buf = (unsigned int *)buf;
461 unsigned int mmc_stat;
462 unsigned int count;
463
464 /*
465 * Start Polled Read
466 */
467 count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size;
468 count /= 4;
469
470 while (size) {
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500471 ulong start = get_timer(0);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700472 do {
473 mmc_stat = readl(&mmc_base->stat);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500474 if (get_timer(0) - start > MAX_RETRY_MS) {
475 printf("%s: timedout waiting for status!\n",
476 __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900477 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500478 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700479 } while (mmc_stat == 0);
480
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000481 if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0)
482 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
483
Sukumar Ghoraide941242010-09-18 20:32:33 -0700484 if ((mmc_stat & ERRI_MASK) != 0)
485 return 1;
486
487 if (mmc_stat & BRR_MASK) {
488 unsigned int k;
489
490 writel(readl(&mmc_base->stat) | BRR_MASK,
491 &mmc_base->stat);
492 for (k = 0; k < count; k++) {
493 *output_buf = readl(&mmc_base->data);
494 output_buf++;
495 }
496 size -= (count*4);
497 }
498
499 if (mmc_stat & BWR_MASK)
500 writel(readl(&mmc_base->stat) | BWR_MASK,
501 &mmc_base->stat);
502
503 if (mmc_stat & TC_MASK) {
504 writel(readl(&mmc_base->stat) | TC_MASK,
505 &mmc_base->stat);
506 break;
507 }
508 }
509 return 0;
510}
511
Sricharan933efe62011-11-15 09:49:53 -0500512static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
513 unsigned int size)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700514{
515 unsigned int *input_buf = (unsigned int *)buf;
516 unsigned int mmc_stat;
517 unsigned int count;
518
519 /*
Lubomir Popov152ba362013-08-14 18:59:18 +0300520 * Start Polled Write
Sukumar Ghoraide941242010-09-18 20:32:33 -0700521 */
522 count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size;
523 count /= 4;
524
525 while (size) {
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500526 ulong start = get_timer(0);
Sukumar Ghoraide941242010-09-18 20:32:33 -0700527 do {
528 mmc_stat = readl(&mmc_base->stat);
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500529 if (get_timer(0) - start > MAX_RETRY_MS) {
530 printf("%s: timedout waiting for status!\n",
531 __func__);
Jaehoon Chung915ffa52016-07-19 16:33:36 +0900532 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500533 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700534 } while (mmc_stat == 0);
535
Grazvydas Ignotas25c719e2012-03-19 12:12:06 +0000536 if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0)
537 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
538
Sukumar Ghoraide941242010-09-18 20:32:33 -0700539 if ((mmc_stat & ERRI_MASK) != 0)
540 return 1;
541
542 if (mmc_stat & BWR_MASK) {
543 unsigned int k;
544
545 writel(readl(&mmc_base->stat) | BWR_MASK,
546 &mmc_base->stat);
547 for (k = 0; k < count; k++) {
548 writel(*input_buf, &mmc_base->data);
549 input_buf++;
550 }
551 size -= (count*4);
552 }
553
554 if (mmc_stat & BRR_MASK)
555 writel(readl(&mmc_base->stat) | BRR_MASK,
556 &mmc_base->stat);
557
558 if (mmc_stat & TC_MASK) {
559 writel(readl(&mmc_base->stat) | TC_MASK,
560 &mmc_base->stat);
561 break;
562 }
563 }
564 return 0;
565}
566
Simon Glassc4d660d2017-07-04 13:31:19 -0600567#if !CONFIG_IS_ENABLED(DM_MMC)
Jaehoon Chung07b0b9c2016-12-30 15:30:16 +0900568static int omap_hsmmc_set_ios(struct mmc *mmc)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700569{
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100570 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200571#else
572static int omap_hsmmc_set_ios(struct udevice *dev)
573{
574 struct omap_hsmmc_data *priv = dev_get_priv(dev);
575 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
576 struct mmc *mmc = upriv->mmc;
577#endif
Nikita Kiryanovcc22b0c2012-12-03 02:19:43 +0000578 struct hsmmc *mmc_base;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700579 unsigned int dsor = 0;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500580 ulong start;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700581
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100582 mmc_base = priv->base_addr;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700583 /* configue bus width */
584 switch (mmc->bus_width) {
585 case 8:
586 writel(readl(&mmc_base->con) | DTW_8_BITMODE,
587 &mmc_base->con);
588 break;
589
590 case 4:
591 writel(readl(&mmc_base->con) & ~DTW_8_BITMODE,
592 &mmc_base->con);
593 writel(readl(&mmc_base->hctl) | DTW_4_BITMODE,
594 &mmc_base->hctl);
595 break;
596
597 case 1:
598 default:
599 writel(readl(&mmc_base->con) & ~DTW_8_BITMODE,
600 &mmc_base->con);
601 writel(readl(&mmc_base->hctl) & ~DTW_4_BITMODE,
602 &mmc_base->hctl);
603 break;
604 }
605
606 /* configure clock with 96Mhz system clock.
607 */
608 if (mmc->clock != 0) {
609 dsor = (MMC_CLOCK_REFERENCE * 1000000 / mmc->clock);
610 if ((MMC_CLOCK_REFERENCE * 1000000) / dsor > mmc->clock)
611 dsor++;
612 }
613
614 mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
615 (ICE_STOP | DTO_15THDTO | CEN_DISABLE));
616
617 mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
618 (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
619
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500620 start = get_timer(0);
621 while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
622 if (get_timer(0) - start > MAX_RETRY_MS) {
623 printf("%s: timedout waiting for ics!\n", __func__);
Jaehoon Chung07b0b9c2016-12-30 15:30:16 +0900624 return -ETIMEDOUT;
Nishanth Menoneb9a28f2010-11-19 11:18:12 -0500625 }
626 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700627 writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
Jaehoon Chung07b0b9c2016-12-30 15:30:16 +0900628
629 return 0;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700630}
631
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200632#ifdef OMAP_HSMMC_USE_GPIO
Simon Glassc4d660d2017-07-04 13:31:19 -0600633#if CONFIG_IS_ENABLED(DM_MMC)
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200634static int omap_hsmmc_getcd(struct udevice *dev)
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530635{
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200636 struct omap_hsmmc_data *priv = dev_get_priv(dev);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530637 int value;
638
639 value = dm_gpio_get_value(&priv->cd_gpio);
640 /* if no CD return as 1 */
641 if (value < 0)
642 return 1;
643
644 if (priv->cd_inverted)
645 return !value;
646 return value;
647}
648
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200649static int omap_hsmmc_getwp(struct udevice *dev)
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530650{
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200651 struct omap_hsmmc_data *priv = dev_get_priv(dev);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530652 int value;
653
654 value = dm_gpio_get_value(&priv->wp_gpio);
655 /* if no WP return as 0 */
656 if (value < 0)
657 return 0;
658 return value;
659}
660#else
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200661static int omap_hsmmc_getcd(struct mmc *mmc)
662{
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100663 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200664 int cd_gpio;
665
666 /* if no CD return as 1 */
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100667 cd_gpio = priv->cd_gpio;
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200668 if (cd_gpio < 0)
669 return 1;
670
Igor Grinberg0b03a932014-11-03 11:32:23 +0200671 /* NOTE: assumes card detect signal is active-low */
672 return !gpio_get_value(cd_gpio);
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200673}
674
675static int omap_hsmmc_getwp(struct mmc *mmc)
676{
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100677 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200678 int wp_gpio;
679
680 /* if no WP return as 0 */
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100681 wp_gpio = priv->wp_gpio;
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200682 if (wp_gpio < 0)
683 return 0;
684
Igor Grinberg0b03a932014-11-03 11:32:23 +0200685 /* NOTE: assumes write protect signal is active-high */
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200686 return gpio_get_value(wp_gpio);
687}
688#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530689#endif
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200690
Simon Glassc4d660d2017-07-04 13:31:19 -0600691#if CONFIG_IS_ENABLED(DM_MMC)
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200692static const struct dm_mmc_ops omap_hsmmc_ops = {
693 .send_cmd = omap_hsmmc_send_cmd,
694 .set_ios = omap_hsmmc_set_ios,
695#ifdef OMAP_HSMMC_USE_GPIO
696 .get_cd = omap_hsmmc_getcd,
697 .get_wp = omap_hsmmc_getwp,
698#endif
699};
700#else
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200701static const struct mmc_ops omap_hsmmc_ops = {
702 .send_cmd = omap_hsmmc_send_cmd,
703 .set_ios = omap_hsmmc_set_ios,
704 .init = omap_hsmmc_init_setup,
705#ifdef OMAP_HSMMC_USE_GPIO
706 .getcd = omap_hsmmc_getcd,
707 .getwp = omap_hsmmc_getwp,
708#endif
709};
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200710#endif
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200711
Simon Glassc4d660d2017-07-04 13:31:19 -0600712#if !CONFIG_IS_ENABLED(DM_MMC)
Nikita Kiryanove3913f52012-12-03 02:19:47 +0000713int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
714 int wp_gpio)
Sukumar Ghoraide941242010-09-18 20:32:33 -0700715{
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200716 struct mmc *mmc;
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100717 struct omap_hsmmc_data *priv;
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200718 struct mmc_config *cfg;
719 uint host_caps_val;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700720
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100721 priv = malloc(sizeof(*priv));
722 if (priv == NULL)
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200723 return -1;
724
Rob Herring5a203972015-03-23 17:56:59 -0500725 host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700726
727 switch (dev_index) {
728 case 0:
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100729 priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700730 break;
Tom Rini1037d582011-10-12 06:20:50 +0000731#ifdef OMAP_HSMMC2_BASE
Sukumar Ghoraide941242010-09-18 20:32:33 -0700732 case 1:
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100733 priv->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE;
Lubomir Popov152ba362013-08-14 18:59:18 +0300734#if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
Nishanth Menon3891a542016-11-29 15:22:00 +0530735 defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \
Roger Quadros3b689392015-09-19 16:26:53 +0530736 defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \
737 defined(CONFIG_HSMMC2_8BIT)
Lubomir Popov152ba362013-08-14 18:59:18 +0300738 /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */
739 host_caps_val |= MMC_MODE_8BIT;
740#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700741 break;
Tom Rini1037d582011-10-12 06:20:50 +0000742#endif
743#ifdef OMAP_HSMMC3_BASE
Sukumar Ghoraide941242010-09-18 20:32:33 -0700744 case 2:
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100745 priv->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE;
Nishanth Menon3891a542016-11-29 15:22:00 +0530746#if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT)
Lubomir Popov152ba362013-08-14 18:59:18 +0300747 /* Enable 8-bit interface for eMMC on DRA7XX */
748 host_caps_val |= MMC_MODE_8BIT;
749#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700750 break;
Tom Rini1037d582011-10-12 06:20:50 +0000751#endif
Sukumar Ghoraide941242010-09-18 20:32:33 -0700752 default:
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100753 priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700754 return 1;
755 }
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200756#ifdef OMAP_HSMMC_USE_GPIO
757 /* on error gpio values are set to -1, which is what we want */
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100758 priv->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
759 priv->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
Pantelis Antoniouab769f22014-02-26 19:28:45 +0200760#endif
Peter Korsgaard173ddc52013-03-21 04:00:04 +0000761
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100762 cfg = &priv->cfg;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700763
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200764 cfg->name = "OMAP SD/MMC";
765 cfg->ops = &omap_hsmmc_ops;
766
767 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
768 cfg->host_caps = host_caps_val & ~host_caps_mask;
769
770 cfg->f_min = 400000;
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000771
772 if (f_max != 0)
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200773 cfg->f_max = f_max;
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000774 else {
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200775 if (cfg->host_caps & MMC_MODE_HS) {
776 if (cfg->host_caps & MMC_MODE_HS_52MHz)
777 cfg->f_max = 52000000;
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000778 else
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200779 cfg->f_max = 26000000;
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000780 } else
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200781 cfg->f_max = 20000000;
Jonathan Solnitbbbc1ae2012-02-24 11:30:18 +0000782 }
Sukumar Ghoraide941242010-09-18 20:32:33 -0700783
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200784 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
John Rigby8feafcc2011-04-18 05:50:08 +0000785
John Rigby4ca92442011-04-19 05:48:14 +0000786#if defined(CONFIG_OMAP34XX)
787 /*
788 * Silicon revs 2.1 and older do not support multiblock transfers.
789 */
790 if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21))
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200791 cfg->b_max = 1;
John Rigby4ca92442011-04-19 05:48:14 +0000792#endif
Jean-Jacques Hiblotae000e22017-03-22 16:00:31 +0100793 mmc = mmc_create(cfg, priv);
Pantelis Antoniou93bfd612014-03-11 19:34:20 +0200794 if (mmc == NULL)
795 return -1;
Sukumar Ghoraide941242010-09-18 20:32:33 -0700796
797 return 0;
798}
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530799#else
Lokesh Vutla2558c042017-04-26 13:37:05 +0530800#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530801static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
802{
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +0100803 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
804 struct mmc_config *cfg = &plat->cfg;
Adam Ford46831c12017-04-17 08:09:37 -0500805 struct omap2_mmc_platform_config *data =
806 (struct omap2_mmc_platform_config *)dev_get_driver_data(dev);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530807 const void *fdt = gd->fdt_blob;
Simon Glasse160f7d2017-01-17 16:52:55 -0700808 int node = dev_of_offset(dev);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530809 int val;
810
Simon Glassa821c4a2017-05-17 17:18:05 -0600811 plat->base_addr = map_physmem(devfdt_get_addr(dev),
812 sizeof(struct hsmmc *),
Adam Ford46831c12017-04-17 08:09:37 -0500813 MAP_NOCACHE) + data->reg_offset;
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530814
815 cfg->host_caps = MMC_MODE_HS_52MHz | MMC_MODE_HS;
816 val = fdtdec_get_int(fdt, node, "bus-width", -1);
817 if (val < 0) {
818 printf("error: bus-width property missing\n");
819 return -ENOENT;
820 }
821
822 switch (val) {
823 case 0x8:
824 cfg->host_caps |= MMC_MODE_8BIT;
825 case 0x4:
826 cfg->host_caps |= MMC_MODE_4BIT;
827 break;
828 default:
829 printf("error: invalid bus-width property\n");
830 return -ENOENT;
831 }
832
833 cfg->f_min = 400000;
834 cfg->f_max = fdtdec_get_int(fdt, node, "max-frequency", 52000000);
835 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
836 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
837
Sekhar Nori4de2de52016-08-10 19:24:03 +0530838#ifdef OMAP_HSMMC_USE_GPIO
Lokesh Vutla2558c042017-04-26 13:37:05 +0530839 plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
Sekhar Nori4de2de52016-08-10 19:24:03 +0530840#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530841
842 return 0;
843}
Lokesh Vutla2558c042017-04-26 13:37:05 +0530844#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530845
Jean-Jacques Hiblot17c9a1c2017-03-22 16:00:34 +0100846#ifdef CONFIG_BLK
847
848static int omap_hsmmc_bind(struct udevice *dev)
849{
850 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
851
852 return mmc_bind(dev, &plat->mmc, &plat->cfg);
853}
854#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530855static int omap_hsmmc_probe(struct udevice *dev)
856{
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +0100857 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530858 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
859 struct omap_hsmmc_data *priv = dev_get_priv(dev);
Jean-Jacques Hiblot3d673ff2017-03-22 16:00:33 +0100860 struct mmc_config *cfg = &plat->cfg;
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530861 struct mmc *mmc;
862
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530863 cfg->name = "OMAP SD/MMC";
Lokesh Vutla2558c042017-04-26 13:37:05 +0530864 priv->base_addr = plat->base_addr;
865#ifdef OMAP_HSMMC_USE_GPIO
866 priv->cd_inverted = plat->cd_inverted;
867#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530868
Jean-Jacques Hiblot17c9a1c2017-03-22 16:00:34 +0100869#ifdef CONFIG_BLK
870 mmc = &plat->mmc;
871#else
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530872 mmc = mmc_create(cfg, priv);
873 if (mmc == NULL)
874 return -1;
Jean-Jacques Hiblot17c9a1c2017-03-22 16:00:34 +0100875#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530876
Lokesh Vutla2558c042017-04-26 13:37:05 +0530877#if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL)
Mugunthan V N5cc6a242016-04-04 17:28:01 +0530878 gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN);
879 gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
880#endif
881
Simon Glasscffe5d82016-05-01 13:52:34 -0600882 mmc->dev = dev;
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530883 upriv->mmc = mmc;
884
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200885 return omap_hsmmc_init_setup(mmc);
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530886}
887
Lokesh Vutla2558c042017-04-26 13:37:05 +0530888#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
Adam Ford46831c12017-04-17 08:09:37 -0500889static const struct omap2_mmc_platform_config omap3_mmc_pdata = {
890 .reg_offset = 0,
891};
892
893static const struct omap2_mmc_platform_config am33xx_mmc_pdata = {
894 .reg_offset = 0x100,
895};
896
897static const struct omap2_mmc_platform_config omap4_mmc_pdata = {
898 .reg_offset = 0x100,
899};
900
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530901static const struct udevice_id omap_hsmmc_ids[] = {
Adam Ford46831c12017-04-17 08:09:37 -0500902 {
903 .compatible = "ti,omap3-hsmmc",
904 .data = (ulong)&omap3_mmc_pdata
905 },
906 {
907 .compatible = "ti,omap4-hsmmc",
908 .data = (ulong)&omap4_mmc_pdata
909 },
910 {
911 .compatible = "ti,am33xx-hsmmc",
912 .data = (ulong)&am33xx_mmc_pdata
913 },
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530914 { }
915};
Lokesh Vutla2558c042017-04-26 13:37:05 +0530916#endif
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530917
918U_BOOT_DRIVER(omap_hsmmc) = {
919 .name = "omap_hsmmc",
920 .id = UCLASS_MMC,
Lokesh Vutla2558c042017-04-26 13:37:05 +0530921#if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530922 .of_match = omap_hsmmc_ids,
923 .ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata,
Lokesh Vutla2558c042017-04-26 13:37:05 +0530924 .platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat),
925#endif
Jean-Jacques Hiblot17c9a1c2017-03-22 16:00:34 +0100926#ifdef CONFIG_BLK
927 .bind = omap_hsmmc_bind,
928#endif
Jean-Jacques Hiblotb5511d62017-04-14 19:50:02 +0200929 .ops = &omap_hsmmc_ops,
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530930 .probe = omap_hsmmc_probe,
931 .priv_auto_alloc_size = sizeof(struct omap_hsmmc_data),
Lokesh Vutlacbcb1702017-04-26 13:37:06 +0530932 .flags = DM_FLAG_PRE_RELOC,
Mugunthan V Na9d6a7e2015-09-28 12:56:30 +0530933};
934#endif