3 * Texas Instruments, <www.ti.com>
4 * Sukumar Ghorai <s-ghorai@ti.com>
6 * See file CREDITS for list of people who contributed to this
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
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.
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,
32 #if defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)
36 #include <asm/arch/mmc_host_def.h>
37 #ifdef CONFIG_OMAP54XX
38 #include <asm/arch/mux_dra7xx.h>
39 #include <asm/arch/dra7xx_iodelay.h>
41 #if !defined(CONFIG_SOC_KEYSTONE)
43 #include <asm/arch/sys_proto.h>
45 #ifdef CONFIG_MMC_OMAP36XX_PINS
46 #include <asm/arch/mux.h>
49 #include <power/regulator.h>
51 DECLARE_GLOBAL_DATA_PTR;
53 /* simplify defines to OMAP_HSMMC_USE_GPIO */
54 #if (defined(CONFIG_OMAP_GPIO) && !defined(CONFIG_SPL_BUILD)) || \
55 (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_GPIO_SUPPORT))
56 #define OMAP_HSMMC_USE_GPIO
58 #undef OMAP_HSMMC_USE_GPIO
61 /* common definitions for all OMAPs */
62 #define SYSCTL_SRC (1 << 25)
63 #define SYSCTL_SRD (1 << 26)
65 #ifdef CONFIG_IODELAY_RECALIBRATION
66 struct omap_hsmmc_pinctrl_state {
67 struct pad_conf_entry *padconf;
69 struct iodelay_cfg_entry *iodelay;
74 struct omap_hsmmc_data {
75 struct hsmmc *base_addr;
76 #if !CONFIG_IS_ENABLED(DM_MMC)
77 struct mmc_config cfg;
82 #ifdef OMAP_HSMMC_USE_GPIO
83 #if CONFIG_IS_ENABLED(DM_MMC)
84 struct gpio_desc cd_gpio; /* Change Detect GPIO */
85 struct gpio_desc wp_gpio; /* Write Protect GPIO */
92 #if CONFIG_IS_ENABLED(DM_MMC)
96 #ifndef CONFIG_OMAP34XX
97 struct omap_hsmmc_adma_desc *adma_desc_table;
101 struct udevice *pbias_supply;
103 #ifdef CONFIG_IODELAY_RECALIBRATION
104 struct omap_hsmmc_pinctrl_state *default_pinctrl_state;
105 struct omap_hsmmc_pinctrl_state *hs_pinctrl_state;
106 struct omap_hsmmc_pinctrl_state *hs200_1_8v_pinctrl_state;
107 struct omap_hsmmc_pinctrl_state *ddr_1_8v_pinctrl_state;
108 struct omap_hsmmc_pinctrl_state *sdr12_pinctrl_state;
109 struct omap_hsmmc_pinctrl_state *sdr25_pinctrl_state;
110 struct omap_hsmmc_pinctrl_state *ddr50_pinctrl_state;
111 struct omap_hsmmc_pinctrl_state *sdr50_pinctrl_state;
112 struct omap_hsmmc_pinctrl_state *sdr104_pinctrl_state;
116 struct omap_mmc_of_data {
120 #ifndef CONFIG_OMAP34XX
121 struct omap_hsmmc_adma_desc {
128 #define ADMA_MAX_LEN 63488
130 /* Decriptor table defines */
131 #define ADMA_DESC_ATTR_VALID BIT(0)
132 #define ADMA_DESC_ATTR_END BIT(1)
133 #define ADMA_DESC_ATTR_INT BIT(2)
134 #define ADMA_DESC_ATTR_ACT1 BIT(4)
135 #define ADMA_DESC_ATTR_ACT2 BIT(5)
137 #define ADMA_DESC_TRANSFER_DATA ADMA_DESC_ATTR_ACT2
138 #define ADMA_DESC_LINK_DESC (ADMA_DESC_ATTR_ACT1 | ADMA_DESC_ATTR_ACT2)
141 /* If we fail after 1 second wait, something is really bad */
142 #define MAX_RETRY_MS 1000
143 #define MMC_TIMEOUT_MS 20
145 /* DMA transfers can take a long time if a lot a data is transferred.
146 * The timeout must take in account the amount of data. Let's assume
147 * that the time will never exceed 333 ms per MB (in other word we assume
148 * that the bandwidth is always above 3MB/s).
150 #define DMA_TIMEOUT_PER_MB 333
151 #define OMAP_HSMMC_SUPPORTS_DUAL_VOLT BIT(0)
152 #define OMAP_HSMMC_NO_1_8_V BIT(1)
153 #define OMAP_HSMMC_USE_ADMA BIT(2)
154 #define OMAP_HSMMC_REQUIRE_IODELAY BIT(3)
156 static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size);
157 static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
159 static void omap_hsmmc_start_clock(struct hsmmc *mmc_base);
160 static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base);
161 static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit);
163 static inline struct omap_hsmmc_data *omap_hsmmc_get_data(struct mmc *mmc)
165 #if CONFIG_IS_ENABLED(DM_MMC)
166 return dev_get_priv(mmc->dev);
168 return (struct omap_hsmmc_data *)mmc->priv;
171 static inline struct mmc_config *omap_hsmmc_get_cfg(struct mmc *mmc)
173 #if CONFIG_IS_ENABLED(DM_MMC)
174 struct omap_hsmmc_plat *plat = dev_get_platdata(mmc->dev);
177 return &((struct omap_hsmmc_data *)mmc->priv)->cfg;
181 #if defined(OMAP_HSMMC_USE_GPIO) && !CONFIG_IS_ENABLED(DM_MMC)
182 static int omap_mmc_setup_gpio_in(int gpio, const char *label)
186 #ifndef CONFIG_DM_GPIO
187 if (!gpio_is_valid(gpio))
190 ret = gpio_request(gpio, label);
194 ret = gpio_direction_input(gpio);
202 static unsigned char mmc_board_init(struct mmc *mmc)
204 #if defined(CONFIG_OMAP34XX)
205 struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc);
206 t2_t *t2_base = (t2_t *)T2_BASE;
207 struct prcm *prcm_base = (struct prcm *)PRCM_BASE;
209 #ifdef CONFIG_MMC_OMAP36XX_PINS
210 u32 wkup_ctrl = readl(OMAP34XX_CTRL_WKUP_CTRL);
213 pbias_lite = readl(&t2_base->pbias_lite);
214 pbias_lite &= ~(PBIASLITEPWRDNZ1 | PBIASLITEPWRDNZ0);
215 #ifdef CONFIG_TARGET_OMAP3_CAIRO
216 /* for cairo board, we need to set up 1.8 Volt bias level on MMC1 */
217 pbias_lite &= ~PBIASLITEVMODE0;
219 #ifdef CONFIG_MMC_OMAP36XX_PINS
220 if (get_cpu_family() == CPU_OMAP36XX) {
221 /* Disable extended drain IO before changing PBIAS */
222 wkup_ctrl &= ~OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ;
223 writel(wkup_ctrl, OMAP34XX_CTRL_WKUP_CTRL);
226 writel(pbias_lite, &t2_base->pbias_lite);
228 writel(pbias_lite | PBIASLITEPWRDNZ1 |
229 PBIASSPEEDCTRL0 | PBIASLITEPWRDNZ0,
230 &t2_base->pbias_lite);
232 #ifdef CONFIG_MMC_OMAP36XX_PINS
233 if (get_cpu_family() == CPU_OMAP36XX)
234 /* Enable extended drain IO after changing PBIAS */
236 OMAP34XX_CTRL_WKUP_CTRL_GPIO_IO_PWRDNZ,
237 OMAP34XX_CTRL_WKUP_CTRL);
239 writel(readl(&t2_base->devconf0) | MMCSDIO1ADPCLKISEL,
242 writel(readl(&t2_base->devconf1) | MMCSDIO2ADPCLKISEL,
245 /* Change from default of 52MHz to 26MHz if necessary */
246 if (!(cfg->host_caps & MMC_MODE_HS_52MHz))
247 writel(readl(&t2_base->ctl_prog_io1) & ~CTLPROGIO1SPEEDCTRL,
248 &t2_base->ctl_prog_io1);
250 writel(readl(&prcm_base->fclken1_core) |
251 EN_MMC1 | EN_MMC2 | EN_MMC3,
252 &prcm_base->fclken1_core);
254 writel(readl(&prcm_base->iclken1_core) |
255 EN_MMC1 | EN_MMC2 | EN_MMC3,
256 &prcm_base->iclken1_core);
259 #if (defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)) &&\
260 !CONFIG_IS_ENABLED(DM_REGULATOR)
261 /* PBIAS config needed for MMC1 only */
262 if (mmc_get_blk_desc(mmc)->devnum == 0)
263 vmmc_pbias_config(LDO_VOLT_3V0);
269 void mmc_init_stream(struct hsmmc *mmc_base)
273 writel(readl(&mmc_base->con) | INIT_INITSTREAM, &mmc_base->con);
275 writel(MMC_CMD0, &mmc_base->cmd);
276 start = get_timer(0);
277 while (!(readl(&mmc_base->stat) & CC_MASK)) {
278 if (get_timer(0) - start > MAX_RETRY_MS) {
279 printf("%s: timedout waiting for cc!\n", __func__);
283 writel(CC_MASK, &mmc_base->stat)
285 writel(MMC_CMD0, &mmc_base->cmd)
287 start = get_timer(0);
288 while (!(readl(&mmc_base->stat) & CC_MASK)) {
289 if (get_timer(0) - start > MAX_RETRY_MS) {
290 printf("%s: timedout waiting for cc2!\n", __func__);
294 writel(readl(&mmc_base->con) & ~INIT_INITSTREAM, &mmc_base->con);
297 #if CONFIG_IS_ENABLED(DM_MMC)
298 #ifdef CONFIG_IODELAY_RECALIBRATION
299 static void omap_hsmmc_io_recalibrate(struct mmc *mmc)
301 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
302 struct omap_hsmmc_pinctrl_state *pinctrl_state;
304 switch (priv->mode) {
306 pinctrl_state = priv->hs200_1_8v_pinctrl_state;
309 pinctrl_state = priv->sdr104_pinctrl_state;
312 pinctrl_state = priv->sdr50_pinctrl_state;
315 pinctrl_state = priv->ddr50_pinctrl_state;
318 pinctrl_state = priv->sdr25_pinctrl_state;
321 pinctrl_state = priv->sdr12_pinctrl_state;
326 pinctrl_state = priv->hs_pinctrl_state;
329 pinctrl_state = priv->ddr_1_8v_pinctrl_state;
331 pinctrl_state = priv->default_pinctrl_state;
336 pinctrl_state = priv->default_pinctrl_state;
338 if (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY) {
339 if (pinctrl_state->iodelay)
340 late_recalibrate_iodelay(pinctrl_state->padconf,
341 pinctrl_state->npads,
342 pinctrl_state->iodelay,
343 pinctrl_state->niodelays);
345 do_set_mux32((*ctrl)->control_padconf_core_base,
346 pinctrl_state->padconf,
347 pinctrl_state->npads);
351 static void omap_hsmmc_set_timing(struct mmc *mmc)
354 struct hsmmc *mmc_base;
355 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
357 mmc_base = priv->base_addr;
359 omap_hsmmc_stop_clock(mmc_base);
360 val = readl(&mmc_base->ac12);
361 val &= ~AC12_UHSMC_MASK;
362 priv->mode = mmc->selected_mode;
364 if (mmc_is_mode_ddr(priv->mode))
365 writel(readl(&mmc_base->con) | DDR, &mmc_base->con);
367 writel(readl(&mmc_base->con) & ~DDR, &mmc_base->con);
369 switch (priv->mode) {
372 val |= AC12_UHSMC_SDR104;
375 val |= AC12_UHSMC_SDR50;
379 val |= AC12_UHSMC_DDR50;
384 val |= AC12_UHSMC_SDR25;
390 val |= AC12_UHSMC_SDR12;
393 val |= AC12_UHSMC_RES;
396 writel(val, &mmc_base->ac12);
398 #ifdef CONFIG_IODELAY_RECALIBRATION
399 omap_hsmmc_io_recalibrate(mmc);
401 omap_hsmmc_start_clock(mmc_base);
404 static void omap_hsmmc_conf_bus_power(struct mmc *mmc, uint signal_voltage)
406 struct hsmmc *mmc_base;
407 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
410 mmc_base = priv->base_addr;
412 hctl = readl(&mmc_base->hctl) & ~SDVS_MASK;
413 ac12 = readl(&mmc_base->ac12) & ~AC12_V1V8_SIGEN;
415 switch (signal_voltage) {
416 case MMC_SIGNAL_VOLTAGE_330:
419 case MMC_SIGNAL_VOLTAGE_180:
421 ac12 |= AC12_V1V8_SIGEN;
425 writel(hctl, &mmc_base->hctl);
426 writel(ac12, &mmc_base->ac12);
429 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
430 static int omap_hsmmc_wait_dat0(struct udevice *dev, int state, int timeout)
432 int ret = -ETIMEDOUT;
435 bool target_dat0_high = !!state;
436 struct omap_hsmmc_data *priv = dev_get_priv(dev);
437 struct hsmmc *mmc_base = priv->base_addr;
439 con = readl(&mmc_base->con);
440 writel(con | CON_CLKEXTFREE | CON_PADEN, &mmc_base->con);
442 timeout = DIV_ROUND_UP(timeout, 10); /* check every 10 us. */
444 dat0_high = !!(readl(&mmc_base->pstate) & PSTATE_DLEV_DAT0);
445 if (dat0_high == target_dat0_high) {
451 writel(con, &mmc_base->con);
457 #if CONFIG_IS_ENABLED(MMC_IO_VOLTAGE)
458 #if CONFIG_IS_ENABLED(DM_REGULATOR)
459 static int omap_hsmmc_set_io_regulator(struct mmc *mmc, int mV)
464 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
466 if (!mmc->vqmmc_supply)
470 ret = regulator_set_enable(priv->pbias_supply, false);
471 if (ret && ret != -ENOSYS)
474 /* Turn off IO voltage */
475 ret = regulator_set_enable(mmc->vqmmc_supply, false);
476 if (ret && ret != -ENOSYS)
478 /* Program a new IO voltage value */
479 ret = regulator_set_value(mmc->vqmmc_supply, uV);
482 /* Turn on IO voltage */
483 ret = regulator_set_enable(mmc->vqmmc_supply, true);
484 if (ret && ret != -ENOSYS)
487 /* Program PBIAS voltage*/
488 ret = regulator_set_value(priv->pbias_supply, uV);
489 if (ret && ret != -ENOSYS)
492 ret = regulator_set_enable(priv->pbias_supply, true);
493 if (ret && ret != -ENOSYS)
500 static int omap_hsmmc_set_signal_voltage(struct mmc *mmc)
502 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
503 struct hsmmc *mmc_base = priv->base_addr;
504 int mv = mmc_voltage_to_mv(mmc->signal_voltage);
506 __maybe_unused u8 palmas_ldo_volt;
512 if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
513 /* Use 3.0V rather than 3.3V */
515 capa_mask = VS30_3V0SUP;
516 palmas_ldo_volt = LDO_VOLT_3V0;
517 } else if (mmc->signal_voltage == MMC_SIGNAL_VOLTAGE_180) {
518 capa_mask = VS18_1V8SUP;
519 palmas_ldo_volt = LDO_VOLT_1V8;
524 val = readl(&mmc_base->capa);
525 if (!(val & capa_mask))
528 priv->signal_voltage = mmc->signal_voltage;
530 omap_hsmmc_conf_bus_power(mmc, mmc->signal_voltage);
532 #if CONFIG_IS_ENABLED(DM_REGULATOR)
533 return omap_hsmmc_set_io_regulator(mmc, mv);
534 #elif (defined(CONFIG_OMAP54XX) || defined(CONFIG_OMAP44XX)) && \
535 defined(CONFIG_PALMAS_POWER)
536 if (mmc_get_blk_desc(mmc)->devnum == 0)
537 vmmc_pbias_config(palmas_ldo_volt);
545 static uint32_t omap_hsmmc_set_capabilities(struct mmc *mmc)
547 struct hsmmc *mmc_base;
548 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
551 mmc_base = priv->base_addr;
552 val = readl(&mmc_base->capa);
554 if (priv->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
555 val |= (VS30_3V0SUP | VS18_1V8SUP);
556 } else if (priv->controller_flags & OMAP_HSMMC_NO_1_8_V) {
564 writel(val, &mmc_base->capa);
569 #ifdef MMC_SUPPORTS_TUNING
570 static void omap_hsmmc_disable_tuning(struct mmc *mmc)
572 struct hsmmc *mmc_base;
573 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
576 mmc_base = priv->base_addr;
577 val = readl(&mmc_base->ac12);
578 val &= ~(AC12_SCLK_SEL);
579 writel(val, &mmc_base->ac12);
581 val = readl(&mmc_base->dll);
582 val &= ~(DLL_FORCE_VALUE | DLL_SWT);
583 writel(val, &mmc_base->dll);
586 static void omap_hsmmc_set_dll(struct mmc *mmc, int count)
589 struct hsmmc *mmc_base;
590 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
593 mmc_base = priv->base_addr;
594 val = readl(&mmc_base->dll);
595 val |= DLL_FORCE_VALUE;
596 val &= ~(DLL_FORCE_SR_C_MASK << DLL_FORCE_SR_C_SHIFT);
597 val |= (count << DLL_FORCE_SR_C_SHIFT);
598 writel(val, &mmc_base->dll);
601 writel(val, &mmc_base->dll);
602 for (i = 0; i < 1000; i++) {
603 if (readl(&mmc_base->dll) & DLL_CALIB)
607 writel(val, &mmc_base->dll);
610 static int omap_hsmmc_execute_tuning(struct udevice *dev, uint opcode)
612 struct omap_hsmmc_data *priv = dev_get_priv(dev);
613 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
614 struct mmc *mmc = upriv->mmc;
615 struct hsmmc *mmc_base;
617 u8 cur_match, prev_match = 0;
620 u32 start_window = 0, max_window = 0;
621 u32 length = 0, max_len = 0;
623 mmc_base = priv->base_addr;
624 val = readl(&mmc_base->capa2);
626 /* clock tuning is not needed for upto 52MHz */
627 if (!((mmc->selected_mode == MMC_HS_200) ||
628 (mmc->selected_mode == UHS_SDR104) ||
629 ((mmc->selected_mode == UHS_SDR50) && (val & CAPA2_TSDR50))))
632 val = readl(&mmc_base->dll);
634 writel(val, &mmc_base->dll);
635 while (phase_delay <= MAX_PHASE_DELAY) {
636 omap_hsmmc_set_dll(mmc, phase_delay);
638 cur_match = !mmc_send_tuning(mmc, opcode, NULL);
644 start_window = phase_delay;
649 if (length > max_len) {
650 max_window = start_window;
654 prev_match = cur_match;
663 val = readl(&mmc_base->ac12);
664 if (!(val & AC12_SCLK_SEL)) {
669 phase_delay = max_window + 4 * ((3 * max_len) >> 2);
670 omap_hsmmc_set_dll(mmc, phase_delay);
672 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
673 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
679 omap_hsmmc_disable_tuning(mmc);
680 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
681 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
687 static void omap_hsmmc_send_init_stream(struct udevice *dev)
689 struct omap_hsmmc_data *priv = dev_get_priv(dev);
690 struct hsmmc *mmc_base = priv->base_addr;
692 mmc_init_stream(mmc_base);
696 static void mmc_enable_irq(struct mmc *mmc, struct mmc_cmd *cmd)
698 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
699 struct hsmmc *mmc_base = priv->base_addr;
700 u32 irq_mask = INT_EN_MASK;
703 * TODO: Errata i802 indicates only DCRC interrupts can occur during
704 * tuning procedure and DCRC should be disabled. But see occurences
705 * of DEB, CIE, CEB, CCRC interupts during tuning procedure. These
706 * interrupts occur along with BRR, so the data is actually in the
707 * buffer. It has to be debugged why these interrutps occur
709 if (cmd && mmc_is_tuning_cmd(cmd->cmdidx))
710 irq_mask &= ~(IE_DEB | IE_DCRC | IE_CIE | IE_CEB | IE_CCRC);
712 writel(irq_mask, &mmc_base->ie);
715 static int omap_hsmmc_init_setup(struct mmc *mmc)
717 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
718 struct hsmmc *mmc_base;
719 unsigned int reg_val;
723 mmc_base = priv->base_addr;
726 writel(readl(&mmc_base->sysconfig) | MMC_SOFTRESET,
727 &mmc_base->sysconfig);
728 start = get_timer(0);
729 while ((readl(&mmc_base->sysstatus) & RESETDONE) == 0) {
730 if (get_timer(0) - start > MAX_RETRY_MS) {
731 printf("%s: timedout waiting for cc2!\n", __func__);
735 writel(readl(&mmc_base->sysctl) | SOFTRESETALL, &mmc_base->sysctl);
736 start = get_timer(0);
737 while ((readl(&mmc_base->sysctl) & SOFTRESETALL) != 0x0) {
738 if (get_timer(0) - start > MAX_RETRY_MS) {
739 printf("%s: timedout waiting for softresetall!\n",
744 #ifndef CONFIG_OMAP34XX
745 reg_val = readl(&mmc_base->hl_hwinfo);
746 if (reg_val & MADMA_EN)
747 priv->controller_flags |= OMAP_HSMMC_USE_ADMA;
750 #if CONFIG_IS_ENABLED(DM_MMC)
751 reg_val = omap_hsmmc_set_capabilities(mmc);
752 omap_hsmmc_conf_bus_power(mmc, (reg_val & VS30_3V0SUP) ?
753 MMC_SIGNAL_VOLTAGE_330 : MMC_SIGNAL_VOLTAGE_180);
755 writel(DTW_1_BITMODE | SDBP_PWROFF | SDVS_3V0, &mmc_base->hctl);
756 writel(readl(&mmc_base->capa) | VS30_3V0SUP | VS18_1V8SUP,
760 reg_val = readl(&mmc_base->con) & RESERVED_MASK;
762 writel(CTPL_MMC_SD | reg_val | WPP_ACTIVEHIGH | CDP_ACTIVEHIGH |
763 MIT_CTO | DW8_1_4BITMODE | MODE_FUNC | STR_BLOCK |
764 HR_NOHOSTRESP | INIT_NOINIT | NOOPENDRAIN, &mmc_base->con);
767 mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK | CEN_MASK),
768 (ICE_STOP | DTO_15THDTO));
769 mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
770 (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
771 start = get_timer(0);
772 while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
773 if (get_timer(0) - start > MAX_RETRY_MS) {
774 printf("%s: timedout waiting for ics!\n", __func__);
778 writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
780 writel(readl(&mmc_base->hctl) | SDBP_PWRON, &mmc_base->hctl);
782 mmc_enable_irq(mmc, NULL);
784 #if !CONFIG_IS_ENABLED(DM_MMC)
785 mmc_init_stream(mmc_base);
792 * MMC controller internal finite state machine reset
794 * Used to reset command or data internal state machines, using respectively
795 * SRC or SRD bit of SYSCTL register
797 static void mmc_reset_controller_fsm(struct hsmmc *mmc_base, u32 bit)
801 mmc_reg_out(&mmc_base->sysctl, bit, bit);
804 * CMD(DAT) lines reset procedures are slightly different
805 * for OMAP3 and OMAP4(AM335x,OMAP5,DRA7xx).
806 * According to OMAP3 TRM:
807 * Set SRC(SRD) bit in MMCHS_SYSCTL register to 0x1 and wait until it
809 * According to OMAP4(AM335x,OMAP5,DRA7xx) TRMs, CMD(DATA) lines reset
810 * procedure steps must be as follows:
811 * 1. Initiate CMD(DAT) line reset by writing 0x1 to SRC(SRD) bit in
812 * MMCHS_SYSCTL register (SD_SYSCTL for AM335x).
813 * 2. Poll the SRC(SRD) bit until it is set to 0x1.
814 * 3. Wait until the SRC (SRD) bit returns to 0x0
815 * (reset procedure is completed).
817 #if defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
818 defined(CONFIG_AM33XX) || defined(CONFIG_AM43XX)
819 if (!(readl(&mmc_base->sysctl) & bit)) {
820 start = get_timer(0);
821 while (!(readl(&mmc_base->sysctl) & bit)) {
822 if (get_timer(0) - start > MMC_TIMEOUT_MS)
827 start = get_timer(0);
828 while ((readl(&mmc_base->sysctl) & bit) != 0) {
829 if (get_timer(0) - start > MAX_RETRY_MS) {
830 printf("%s: timedout waiting for sysctl %x to clear\n",
837 #ifndef CONFIG_OMAP34XX
838 static void omap_hsmmc_adma_desc(struct mmc *mmc, char *buf, u16 len, bool end)
840 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
841 struct omap_hsmmc_adma_desc *desc;
844 desc = &priv->adma_desc_table[priv->desc_slot];
846 attr = ADMA_DESC_ATTR_VALID | ADMA_DESC_TRANSFER_DATA;
850 attr |= ADMA_DESC_ATTR_END;
853 desc->addr = (u32)buf;
858 static void omap_hsmmc_prepare_adma_table(struct mmc *mmc,
859 struct mmc_data *data)
861 uint total_len = data->blocksize * data->blocks;
862 uint desc_count = DIV_ROUND_UP(total_len, ADMA_MAX_LEN);
863 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
868 priv->adma_desc_table = (struct omap_hsmmc_adma_desc *)
869 memalign(ARCH_DMA_MINALIGN, desc_count *
870 sizeof(struct omap_hsmmc_adma_desc));
872 if (data->flags & MMC_DATA_READ)
875 buf = (char *)data->src;
878 omap_hsmmc_adma_desc(mmc, buf, ADMA_MAX_LEN, false);
880 total_len -= ADMA_MAX_LEN;
883 omap_hsmmc_adma_desc(mmc, buf, total_len, true);
885 flush_dcache_range((long)priv->adma_desc_table,
886 (long)priv->adma_desc_table +
888 sizeof(struct omap_hsmmc_adma_desc),
892 static void omap_hsmmc_prepare_data(struct mmc *mmc, struct mmc_data *data)
894 struct hsmmc *mmc_base;
895 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
899 mmc_base = priv->base_addr;
900 omap_hsmmc_prepare_adma_table(mmc, data);
902 if (data->flags & MMC_DATA_READ)
905 buf = (char *)data->src;
907 val = readl(&mmc_base->hctl);
909 writel(val, &mmc_base->hctl);
911 val = readl(&mmc_base->con);
913 writel(val, &mmc_base->con);
915 writel((u32)priv->adma_desc_table, &mmc_base->admasal);
917 flush_dcache_range((u32)buf,
919 ROUND(data->blocksize * data->blocks,
923 static void omap_hsmmc_dma_cleanup(struct mmc *mmc)
925 struct hsmmc *mmc_base;
926 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
929 mmc_base = priv->base_addr;
931 val = readl(&mmc_base->con);
933 writel(val, &mmc_base->con);
935 val = readl(&mmc_base->hctl);
937 writel(val, &mmc_base->hctl);
939 kfree(priv->adma_desc_table);
942 #define omap_hsmmc_adma_desc
943 #define omap_hsmmc_prepare_adma_table
944 #define omap_hsmmc_prepare_data
945 #define omap_hsmmc_dma_cleanup
948 #if !CONFIG_IS_ENABLED(DM_MMC)
949 static int omap_hsmmc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
950 struct mmc_data *data)
952 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
954 static int omap_hsmmc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
955 struct mmc_data *data)
957 struct omap_hsmmc_data *priv = dev_get_priv(dev);
958 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
959 struct mmc *mmc = upriv->mmc;
961 struct hsmmc *mmc_base;
962 unsigned int flags, mmc_stat;
964 priv->last_cmd = cmd->cmdidx;
966 mmc_base = priv->base_addr;
968 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
971 start = get_timer(0);
972 while ((readl(&mmc_base->pstate) & (DATI_MASK | CMDI_MASK)) != 0) {
973 if (get_timer(0) - start > MAX_RETRY_MS) {
974 printf("%s: timedout waiting on cmd inhibit to clear\n",
979 writel(0xFFFFFFFF, &mmc_base->stat);
980 start = get_timer(0);
981 while (readl(&mmc_base->stat)) {
982 if (get_timer(0) - start > MAX_RETRY_MS) {
983 printf("%s: timedout waiting for STAT (%x) to clear\n",
984 __func__, readl(&mmc_base->stat));
990 * CMDIDX[13:8] : Command index
991 * DATAPRNT[5] : Data Present Select
992 * ENCMDIDX[4] : Command Index Check Enable
993 * ENCMDCRC[3] : Command CRC Check Enable
998 * 11 = Length 48 Check busy after response
1000 /* Delay added before checking the status of frq change
1001 * retry not supported by mmc.c(core file)
1003 if (cmd->cmdidx == SD_CMD_APP_SEND_SCR)
1004 udelay(50000); /* wait 50 ms */
1006 if (!(cmd->resp_type & MMC_RSP_PRESENT))
1008 else if (cmd->resp_type & MMC_RSP_136)
1009 flags = RSP_TYPE_LGHT136 | CICE_NOCHECK;
1010 else if (cmd->resp_type & MMC_RSP_BUSY)
1011 flags = RSP_TYPE_LGHT48B;
1013 flags = RSP_TYPE_LGHT48;
1015 /* enable default flags */
1016 flags = flags | (CMD_TYPE_NORMAL | CICE_NOCHECK | CCCE_NOCHECK |
1018 flags &= ~(ACEN_ENABLE | BCE_ENABLE | DE_ENABLE);
1020 if (cmd->resp_type & MMC_RSP_CRC)
1021 flags |= CCCE_CHECK;
1022 if (cmd->resp_type & MMC_RSP_OPCODE)
1023 flags |= CICE_CHECK;
1026 if ((cmd->cmdidx == MMC_CMD_READ_MULTIPLE_BLOCK) ||
1027 (cmd->cmdidx == MMC_CMD_WRITE_MULTIPLE_BLOCK)) {
1028 flags |= (MSBS_MULTIBLK | BCE_ENABLE | ACEN_ENABLE);
1029 data->blocksize = 512;
1030 writel(data->blocksize | (data->blocks << 16),
1033 writel(data->blocksize | NBLK_STPCNT, &mmc_base->blk);
1035 if (data->flags & MMC_DATA_READ)
1036 flags |= (DP_DATA | DDIR_READ);
1038 flags |= (DP_DATA | DDIR_WRITE);
1040 #ifndef CONFIG_OMAP34XX
1041 if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) &&
1042 !mmc_is_tuning_cmd(cmd->cmdidx)) {
1043 omap_hsmmc_prepare_data(mmc, data);
1049 mmc_enable_irq(mmc, cmd);
1051 writel(cmd->cmdarg, &mmc_base->arg);
1052 udelay(20); /* To fix "No status update" error on eMMC */
1053 writel((cmd->cmdidx << 24) | flags, &mmc_base->cmd);
1055 start = get_timer(0);
1057 mmc_stat = readl(&mmc_base->stat);
1058 if (get_timer(start) > MAX_RETRY_MS) {
1059 printf("%s : timeout: No status update\n", __func__);
1062 } while (!mmc_stat);
1064 if ((mmc_stat & IE_CTO) != 0) {
1065 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRC);
1067 } else if ((mmc_stat & ERRI_MASK) != 0)
1070 if (mmc_stat & CC_MASK) {
1071 writel(CC_MASK, &mmc_base->stat);
1072 if (cmd->resp_type & MMC_RSP_PRESENT) {
1073 if (cmd->resp_type & MMC_RSP_136) {
1074 /* response type 2 */
1075 cmd->response[3] = readl(&mmc_base->rsp10);
1076 cmd->response[2] = readl(&mmc_base->rsp32);
1077 cmd->response[1] = readl(&mmc_base->rsp54);
1078 cmd->response[0] = readl(&mmc_base->rsp76);
1080 /* response types 1, 1b, 3, 4, 5, 6 */
1081 cmd->response[0] = readl(&mmc_base->rsp10);
1085 #ifndef CONFIG_OMAP34XX
1086 if ((priv->controller_flags & OMAP_HSMMC_USE_ADMA) && data &&
1087 !mmc_is_tuning_cmd(cmd->cmdidx)) {
1090 if (mmc_stat & IE_ADMAE) {
1091 omap_hsmmc_dma_cleanup(mmc);
1095 sz_mb = DIV_ROUND_UP(data->blocksize * data->blocks, 1 << 20);
1096 timeout = sz_mb * DMA_TIMEOUT_PER_MB;
1097 if (timeout < MAX_RETRY_MS)
1098 timeout = MAX_RETRY_MS;
1100 start = get_timer(0);
1102 mmc_stat = readl(&mmc_base->stat);
1103 if (mmc_stat & TC_MASK) {
1104 writel(readl(&mmc_base->stat) | TC_MASK,
1108 if (get_timer(start) > timeout) {
1109 printf("%s : DMA timeout: No status update\n",
1115 omap_hsmmc_dma_cleanup(mmc);
1120 if (data && (data->flags & MMC_DATA_READ)) {
1121 mmc_read_data(mmc_base, data->dest,
1122 data->blocksize * data->blocks);
1123 } else if (data && (data->flags & MMC_DATA_WRITE)) {
1124 mmc_write_data(mmc_base, data->src,
1125 data->blocksize * data->blocks);
1130 static int mmc_read_data(struct hsmmc *mmc_base, char *buf, unsigned int size)
1132 unsigned int *output_buf = (unsigned int *)buf;
1133 unsigned int mmc_stat;
1139 count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size;
1143 ulong start = get_timer(0);
1145 mmc_stat = readl(&mmc_base->stat);
1146 if (get_timer(0) - start > MAX_RETRY_MS) {
1147 printf("%s: timedout waiting for status!\n",
1151 } while (mmc_stat == 0);
1153 if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0)
1154 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
1156 if ((mmc_stat & ERRI_MASK) != 0)
1159 if (mmc_stat & BRR_MASK) {
1162 writel(readl(&mmc_base->stat) | BRR_MASK,
1164 for (k = 0; k < count; k++) {
1165 *output_buf = readl(&mmc_base->data);
1171 if (mmc_stat & BWR_MASK)
1172 writel(readl(&mmc_base->stat) | BWR_MASK,
1175 if (mmc_stat & TC_MASK) {
1176 writel(readl(&mmc_base->stat) | TC_MASK,
1184 static int mmc_write_data(struct hsmmc *mmc_base, const char *buf,
1187 unsigned int *input_buf = (unsigned int *)buf;
1188 unsigned int mmc_stat;
1192 * Start Polled Write
1194 count = (size > MMCSD_SECTOR_SIZE) ? MMCSD_SECTOR_SIZE : size;
1198 ulong start = get_timer(0);
1200 mmc_stat = readl(&mmc_base->stat);
1201 if (get_timer(0) - start > MAX_RETRY_MS) {
1202 printf("%s: timedout waiting for status!\n",
1206 } while (mmc_stat == 0);
1208 if ((mmc_stat & (IE_DTO | IE_DCRC | IE_DEB)) != 0)
1209 mmc_reset_controller_fsm(mmc_base, SYSCTL_SRD);
1211 if ((mmc_stat & ERRI_MASK) != 0)
1214 if (mmc_stat & BWR_MASK) {
1217 writel(readl(&mmc_base->stat) | BWR_MASK,
1219 for (k = 0; k < count; k++) {
1220 writel(*input_buf, &mmc_base->data);
1226 if (mmc_stat & BRR_MASK)
1227 writel(readl(&mmc_base->stat) | BRR_MASK,
1230 if (mmc_stat & TC_MASK) {
1231 writel(readl(&mmc_base->stat) | TC_MASK,
1239 static void omap_hsmmc_stop_clock(struct hsmmc *mmc_base)
1241 writel(readl(&mmc_base->sysctl) & ~CEN_ENABLE, &mmc_base->sysctl);
1244 static void omap_hsmmc_start_clock(struct hsmmc *mmc_base)
1246 writel(readl(&mmc_base->sysctl) | CEN_ENABLE, &mmc_base->sysctl);
1249 static void omap_hsmmc_set_clock(struct mmc *mmc)
1251 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1252 struct hsmmc *mmc_base;
1253 unsigned int dsor = 0;
1256 mmc_base = priv->base_addr;
1257 omap_hsmmc_stop_clock(mmc_base);
1259 /* TODO: Is setting DTO required here? */
1260 mmc_reg_out(&mmc_base->sysctl, (ICE_MASK | DTO_MASK),
1261 (ICE_STOP | DTO_15THDTO));
1263 if (mmc->clock != 0) {
1264 dsor = DIV_ROUND_UP(MMC_CLOCK_REFERENCE * 1000000, mmc->clock);
1265 if (dsor > CLKD_MAX)
1271 mmc_reg_out(&mmc_base->sysctl, ICE_MASK | CLKD_MASK,
1272 (dsor << CLKD_OFFSET) | ICE_OSCILLATE);
1274 start = get_timer(0);
1275 while ((readl(&mmc_base->sysctl) & ICS_MASK) == ICS_NOTREADY) {
1276 if (get_timer(0) - start > MAX_RETRY_MS) {
1277 printf("%s: timedout waiting for ics!\n", __func__);
1282 priv->clock = MMC_CLOCK_REFERENCE * 1000000 / dsor;
1283 mmc->clock = priv->clock;
1284 omap_hsmmc_start_clock(mmc_base);
1287 static void omap_hsmmc_set_bus_width(struct mmc *mmc)
1289 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1290 struct hsmmc *mmc_base;
1292 mmc_base = priv->base_addr;
1293 /* configue bus width */
1294 switch (mmc->bus_width) {
1296 writel(readl(&mmc_base->con) | DTW_8_BITMODE,
1301 writel(readl(&mmc_base->con) & ~DTW_8_BITMODE,
1303 writel(readl(&mmc_base->hctl) | DTW_4_BITMODE,
1309 writel(readl(&mmc_base->con) & ~DTW_8_BITMODE,
1311 writel(readl(&mmc_base->hctl) & ~DTW_4_BITMODE,
1316 priv->bus_width = mmc->bus_width;
1319 #if !CONFIG_IS_ENABLED(DM_MMC)
1320 static int omap_hsmmc_set_ios(struct mmc *mmc)
1322 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1324 static int omap_hsmmc_set_ios(struct udevice *dev)
1326 struct omap_hsmmc_data *priv = dev_get_priv(dev);
1327 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
1328 struct mmc *mmc = upriv->mmc;
1330 struct hsmmc *mmc_base = priv->base_addr;
1333 if (priv->bus_width != mmc->bus_width)
1334 omap_hsmmc_set_bus_width(mmc);
1336 if (priv->clock != mmc->clock)
1337 omap_hsmmc_set_clock(mmc);
1339 if (mmc->clk_disable)
1340 omap_hsmmc_stop_clock(mmc_base);
1342 omap_hsmmc_start_clock(mmc_base);
1344 #if CONFIG_IS_ENABLED(DM_MMC)
1345 if (priv->mode != mmc->selected_mode)
1346 omap_hsmmc_set_timing(mmc);
1348 #if CONFIG_IS_ENABLED(MMC_IO_VOLTAGE)
1349 if (priv->signal_voltage != mmc->signal_voltage)
1350 ret = omap_hsmmc_set_signal_voltage(mmc);
1356 #ifdef OMAP_HSMMC_USE_GPIO
1357 #if CONFIG_IS_ENABLED(DM_MMC)
1358 static int omap_hsmmc_getcd(struct udevice *dev)
1360 struct omap_hsmmc_data *priv = dev_get_priv(dev);
1363 value = dm_gpio_get_value(&priv->cd_gpio);
1364 /* if no CD return as 1 */
1368 if (priv->cd_inverted)
1373 static int omap_hsmmc_getwp(struct udevice *dev)
1375 struct omap_hsmmc_data *priv = dev_get_priv(dev);
1378 value = dm_gpio_get_value(&priv->wp_gpio);
1379 /* if no WP return as 0 */
1385 static int omap_hsmmc_getcd(struct mmc *mmc)
1387 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1390 /* if no CD return as 1 */
1391 cd_gpio = priv->cd_gpio;
1395 /* NOTE: assumes card detect signal is active-low */
1396 return !gpio_get_value(cd_gpio);
1399 static int omap_hsmmc_getwp(struct mmc *mmc)
1401 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1404 /* if no WP return as 0 */
1405 wp_gpio = priv->wp_gpio;
1409 /* NOTE: assumes write protect signal is active-high */
1410 return gpio_get_value(wp_gpio);
1415 #if CONFIG_IS_ENABLED(DM_MMC)
1416 static const struct dm_mmc_ops omap_hsmmc_ops = {
1417 .send_cmd = omap_hsmmc_send_cmd,
1418 .set_ios = omap_hsmmc_set_ios,
1419 #ifdef OMAP_HSMMC_USE_GPIO
1420 .get_cd = omap_hsmmc_getcd,
1421 .get_wp = omap_hsmmc_getwp,
1423 #ifdef MMC_SUPPORTS_TUNING
1424 .execute_tuning = omap_hsmmc_execute_tuning,
1426 .send_init_stream = omap_hsmmc_send_init_stream,
1427 #if CONFIG_IS_ENABLED(MMC_UHS_SUPPORT)
1428 .wait_dat0 = omap_hsmmc_wait_dat0,
1432 static const struct mmc_ops omap_hsmmc_ops = {
1433 .send_cmd = omap_hsmmc_send_cmd,
1434 .set_ios = omap_hsmmc_set_ios,
1435 .init = omap_hsmmc_init_setup,
1436 #ifdef OMAP_HSMMC_USE_GPIO
1437 .getcd = omap_hsmmc_getcd,
1438 .getwp = omap_hsmmc_getwp,
1443 #if !CONFIG_IS_ENABLED(DM_MMC)
1444 int omap_mmc_init(int dev_index, uint host_caps_mask, uint f_max, int cd_gpio,
1448 struct omap_hsmmc_data *priv;
1449 struct mmc_config *cfg;
1452 priv = calloc(1, sizeof(*priv));
1456 host_caps_val = MMC_MODE_4BIT | MMC_MODE_HS_52MHz | MMC_MODE_HS;
1458 switch (dev_index) {
1460 priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
1462 #ifdef OMAP_HSMMC2_BASE
1464 priv->base_addr = (struct hsmmc *)OMAP_HSMMC2_BASE;
1465 #if (defined(CONFIG_OMAP44XX) || defined(CONFIG_OMAP54XX) || \
1466 defined(CONFIG_DRA7XX) || defined(CONFIG_AM33XX) || \
1467 defined(CONFIG_AM43XX) || defined(CONFIG_SOC_KEYSTONE)) && \
1468 defined(CONFIG_HSMMC2_8BIT)
1469 /* Enable 8-bit interface for eMMC on OMAP4/5 or DRA7XX */
1470 host_caps_val |= MMC_MODE_8BIT;
1474 #ifdef OMAP_HSMMC3_BASE
1476 priv->base_addr = (struct hsmmc *)OMAP_HSMMC3_BASE;
1477 #if defined(CONFIG_DRA7XX) && defined(CONFIG_HSMMC3_8BIT)
1478 /* Enable 8-bit interface for eMMC on DRA7XX */
1479 host_caps_val |= MMC_MODE_8BIT;
1484 priv->base_addr = (struct hsmmc *)OMAP_HSMMC1_BASE;
1487 #ifdef OMAP_HSMMC_USE_GPIO
1488 /* on error gpio values are set to -1, which is what we want */
1489 priv->cd_gpio = omap_mmc_setup_gpio_in(cd_gpio, "mmc_cd");
1490 priv->wp_gpio = omap_mmc_setup_gpio_in(wp_gpio, "mmc_wp");
1495 cfg->name = "OMAP SD/MMC";
1496 cfg->ops = &omap_hsmmc_ops;
1498 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
1499 cfg->host_caps = host_caps_val & ~host_caps_mask;
1501 cfg->f_min = 400000;
1506 if (cfg->host_caps & MMC_MODE_HS) {
1507 if (cfg->host_caps & MMC_MODE_HS_52MHz)
1508 cfg->f_max = 52000000;
1510 cfg->f_max = 26000000;
1512 cfg->f_max = 20000000;
1515 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
1517 #if defined(CONFIG_OMAP34XX)
1519 * Silicon revs 2.1 and older do not support multiblock transfers.
1521 if ((get_cpu_family() == CPU_OMAP34XX) && (get_cpu_rev() <= CPU_3XX_ES21))
1525 mmc = mmc_create(cfg, priv);
1533 #ifdef CONFIG_IODELAY_RECALIBRATION
1534 static struct pad_conf_entry *
1535 omap_hsmmc_get_pad_conf_entry(const fdt32_t *pinctrl, int count)
1538 struct pad_conf_entry *padconf;
1540 padconf = (struct pad_conf_entry *)malloc(sizeof(*padconf) * count);
1542 debug("failed to allocate memory\n");
1546 while (index < count) {
1547 padconf[index].offset = fdt32_to_cpu(pinctrl[2 * index]);
1548 padconf[index].val = fdt32_to_cpu(pinctrl[2 * index + 1]);
1555 static struct iodelay_cfg_entry *
1556 omap_hsmmc_get_iodelay_cfg_entry(const fdt32_t *pinctrl, int count)
1559 struct iodelay_cfg_entry *iodelay;
1561 iodelay = (struct iodelay_cfg_entry *)malloc(sizeof(*iodelay) * count);
1563 debug("failed to allocate memory\n");
1567 while (index < count) {
1568 iodelay[index].offset = fdt32_to_cpu(pinctrl[3 * index]);
1569 iodelay[index].a_delay = fdt32_to_cpu(pinctrl[3 * index + 1]);
1570 iodelay[index].g_delay = fdt32_to_cpu(pinctrl[3 * index + 2]);
1577 static const fdt32_t *omap_hsmmc_get_pinctrl_entry(u32 phandle,
1578 const char *name, int *len)
1580 const void *fdt = gd->fdt_blob;
1582 const fdt32_t *pinctrl;
1584 offset = fdt_node_offset_by_phandle(fdt, phandle);
1586 debug("failed to get pinctrl node %s.\n",
1587 fdt_strerror(offset));
1591 pinctrl = fdt_getprop(fdt, offset, name, len);
1593 debug("failed to get property %s\n", name);
1600 static uint32_t omap_hsmmc_get_pad_conf_phandle(struct mmc *mmc,
1603 const void *fdt = gd->fdt_blob;
1604 const __be32 *phandle;
1605 int node = dev_of_offset(mmc->dev);
1607 phandle = fdt_getprop(fdt, node, prop_name, NULL);
1609 debug("failed to get property %s\n", prop_name);
1613 return fdt32_to_cpu(*phandle);
1616 static uint32_t omap_hsmmc_get_iodelay_phandle(struct mmc *mmc,
1619 const void *fdt = gd->fdt_blob;
1620 const __be32 *phandle;
1623 int node = dev_of_offset(mmc->dev);
1625 phandle = fdt_getprop(fdt, node, prop_name, &len);
1627 debug("failed to get property %s\n", prop_name);
1631 /* No manual mode iodelay values if count < 2 */
1632 count = len / sizeof(*phandle);
1636 return fdt32_to_cpu(*(phandle + 1));
1639 static struct pad_conf_entry *
1640 omap_hsmmc_get_pad_conf(struct mmc *mmc, char *prop_name, int *npads)
1644 struct pad_conf_entry *padconf;
1646 const fdt32_t *pinctrl;
1648 phandle = omap_hsmmc_get_pad_conf_phandle(mmc, prop_name);
1650 return ERR_PTR(-EINVAL);
1652 pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-single,pins",
1655 return ERR_PTR(-EINVAL);
1657 count = (len / sizeof(*pinctrl)) / 2;
1658 padconf = omap_hsmmc_get_pad_conf_entry(pinctrl, count);
1660 return ERR_PTR(-EINVAL);
1667 static struct iodelay_cfg_entry *
1668 omap_hsmmc_get_iodelay(struct mmc *mmc, char *prop_name, int *niodelay)
1672 struct iodelay_cfg_entry *iodelay;
1674 const fdt32_t *pinctrl;
1676 phandle = omap_hsmmc_get_iodelay_phandle(mmc, prop_name);
1677 /* Not all modes have manual mode iodelay values. So its not fatal */
1681 pinctrl = omap_hsmmc_get_pinctrl_entry(phandle, "pinctrl-pin-array",
1684 return ERR_PTR(-EINVAL);
1686 count = (len / sizeof(*pinctrl)) / 3;
1687 iodelay = omap_hsmmc_get_iodelay_cfg_entry(pinctrl, count);
1689 return ERR_PTR(-EINVAL);
1696 static struct omap_hsmmc_pinctrl_state *
1697 omap_hsmmc_get_pinctrl_by_mode(struct mmc *mmc, char *mode)
1702 const void *fdt = gd->fdt_blob;
1703 int node = dev_of_offset(mmc->dev);
1705 struct omap_hsmmc_pinctrl_state *pinctrl_state;
1707 pinctrl_state = (struct omap_hsmmc_pinctrl_state *)
1708 malloc(sizeof(*pinctrl_state));
1709 if (!pinctrl_state) {
1710 debug("failed to allocate memory\n");
1714 index = fdt_stringlist_search(fdt, node, "pinctrl-names", mode);
1716 debug("fail to find %s mode %s\n", mode, fdt_strerror(index));
1717 goto err_pinctrl_state;
1720 sprintf(prop_name, "pinctrl-%d", index);
1722 pinctrl_state->padconf = omap_hsmmc_get_pad_conf(mmc, prop_name,
1724 if (IS_ERR(pinctrl_state->padconf))
1725 goto err_pinctrl_state;
1726 pinctrl_state->npads = npads;
1728 pinctrl_state->iodelay = omap_hsmmc_get_iodelay(mmc, prop_name,
1730 if (IS_ERR(pinctrl_state->iodelay))
1732 pinctrl_state->niodelays = niodelays;
1734 return pinctrl_state;
1737 kfree(pinctrl_state->padconf);
1740 kfree(pinctrl_state);
1744 #define OMAP_HSMMC_SETUP_PINCTRL(capmask, mode, optional) \
1746 struct omap_hsmmc_pinctrl_state *s = NULL; \
1748 if (!(cfg->host_caps & capmask)) \
1751 if (priv->hw_rev) { \
1752 sprintf(str, "%s-%s", #mode, priv->hw_rev); \
1753 s = omap_hsmmc_get_pinctrl_by_mode(mmc, str); \
1757 s = omap_hsmmc_get_pinctrl_by_mode(mmc, #mode); \
1759 if (!s && !optional) { \
1760 debug("%s: no pinctrl for %s\n", \
1761 mmc->dev->name, #mode); \
1762 cfg->host_caps &= ~(capmask); \
1764 priv->mode##_pinctrl_state = s; \
1768 static int omap_hsmmc_get_pinctrl_state(struct mmc *mmc)
1770 struct omap_hsmmc_data *priv = omap_hsmmc_get_data(mmc);
1771 struct mmc_config *cfg = omap_hsmmc_get_cfg(mmc);
1772 struct omap_hsmmc_pinctrl_state *default_pinctrl;
1774 if (!(priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY))
1777 default_pinctrl = omap_hsmmc_get_pinctrl_by_mode(mmc, "default");
1778 if (!default_pinctrl) {
1779 printf("no pinctrl state for default mode\n");
1783 priv->default_pinctrl_state = default_pinctrl;
1785 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR104), sdr104, false);
1786 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR50), sdr50, false);
1787 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_DDR50), ddr50, false);
1788 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR25), sdr25, false);
1789 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(UHS_SDR12), sdr12, false);
1791 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_HS_200), hs200_1_8v, false);
1792 OMAP_HSMMC_SETUP_PINCTRL(MMC_CAP(MMC_DDR_52), ddr_1_8v, false);
1793 OMAP_HSMMC_SETUP_PINCTRL(MMC_MODE_HS, hs, true);
1799 #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
1800 #ifdef CONFIG_OMAP54XX
1801 __weak const struct mmc_platform_fixups *platform_fixups_mmc(uint32_t addr)
1807 static int omap_hsmmc_ofdata_to_platdata(struct udevice *dev)
1809 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
1810 struct omap_mmc_of_data *of_data = (void *)dev_get_driver_data(dev);
1812 struct mmc_config *cfg = &plat->cfg;
1813 #ifdef CONFIG_OMAP54XX
1814 const struct mmc_platform_fixups *fixups;
1816 const void *fdt = gd->fdt_blob;
1817 int node = dev_of_offset(dev);
1820 plat->base_addr = map_physmem(devfdt_get_addr(dev),
1821 sizeof(struct hsmmc *),
1824 ret = mmc_of_parse(dev, cfg);
1828 cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
1829 cfg->f_min = 400000;
1830 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34 | MMC_VDD_165_195;
1831 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
1832 if (fdtdec_get_bool(fdt, node, "ti,dual-volt"))
1833 plat->controller_flags |= OMAP_HSMMC_SUPPORTS_DUAL_VOLT;
1834 if (fdtdec_get_bool(fdt, node, "no-1-8-v"))
1835 plat->controller_flags |= OMAP_HSMMC_NO_1_8_V;
1837 plat->controller_flags |= of_data->controller_flags;
1839 #ifdef CONFIG_OMAP54XX
1840 fixups = platform_fixups_mmc(devfdt_get_addr(dev));
1842 plat->hw_rev = fixups->hw_rev;
1843 cfg->host_caps &= ~fixups->unsupported_caps;
1844 cfg->f_max = fixups->max_freq;
1848 #ifdef OMAP_HSMMC_USE_GPIO
1849 plat->cd_inverted = fdtdec_get_bool(fdt, node, "cd-inverted");
1858 static int omap_hsmmc_bind(struct udevice *dev)
1860 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
1862 return mmc_bind(dev, &plat->mmc, &plat->cfg);
1865 static int omap_hsmmc_probe(struct udevice *dev)
1867 struct omap_hsmmc_plat *plat = dev_get_platdata(dev);
1868 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
1869 struct omap_hsmmc_data *priv = dev_get_priv(dev);
1870 struct mmc_config *cfg = &plat->cfg;
1872 #ifdef CONFIG_IODELAY_RECALIBRATION
1876 cfg->name = "OMAP SD/MMC";
1877 priv->base_addr = plat->base_addr;
1878 priv->controller_flags = plat->controller_flags;
1879 priv->hw_rev = plat->hw_rev;
1880 #ifdef OMAP_HSMMC_USE_GPIO
1881 priv->cd_inverted = plat->cd_inverted;
1887 mmc = mmc_create(cfg, priv);
1891 #if CONFIG_IS_ENABLED(DM_REGULATOR)
1892 device_get_supply_regulator(dev, "pbias-supply",
1893 &priv->pbias_supply);
1895 #if defined(OMAP_HSMMC_USE_GPIO) && CONFIG_IS_ENABLED(OF_CONTROL)
1896 gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio, GPIOD_IS_IN);
1897 gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio, GPIOD_IS_IN);
1903 #ifdef CONFIG_IODELAY_RECALIBRATION
1904 ret = omap_hsmmc_get_pinctrl_state(mmc);
1906 * disable high speed modes for the platforms that require IO delay
1907 * and for which we don't have this information
1910 (priv->controller_flags & OMAP_HSMMC_REQUIRE_IODELAY)) {
1911 priv->controller_flags &= ~OMAP_HSMMC_REQUIRE_IODELAY;
1912 cfg->host_caps &= ~(MMC_CAP(MMC_HS_200) | MMC_CAP(MMC_DDR_52) |
1917 return omap_hsmmc_init_setup(mmc);
1920 #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
1922 static const struct omap_mmc_of_data dra7_mmc_of_data = {
1923 .controller_flags = OMAP_HSMMC_REQUIRE_IODELAY,
1926 static const struct udevice_id omap_hsmmc_ids[] = {
1927 { .compatible = "ti,omap3-hsmmc" },
1928 { .compatible = "ti,omap4-hsmmc" },
1929 { .compatible = "ti,am33xx-hsmmc" },
1930 { .compatible = "ti,dra7-hsmmc", .data = (ulong)&dra7_mmc_of_data },
1935 U_BOOT_DRIVER(omap_hsmmc) = {
1936 .name = "omap_hsmmc",
1938 #if CONFIG_IS_ENABLED(OF_CONTROL) && !CONFIG_IS_ENABLED(OF_PLATDATA)
1939 .of_match = omap_hsmmc_ids,
1940 .ofdata_to_platdata = omap_hsmmc_ofdata_to_platdata,
1941 .platdata_auto_alloc_size = sizeof(struct omap_hsmmc_plat),
1944 .bind = omap_hsmmc_bind,
1946 .ops = &omap_hsmmc_ops,
1947 .probe = omap_hsmmc_probe,
1948 .priv_auto_alloc_size = sizeof(struct omap_hsmmc_data),
1949 .flags = DM_FLAG_PRE_RELOC,