1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc
4 * Copyright 2019 NXP Semiconductors
6 * Yangbo Lu <yangbo.lu@nxp.com>
8 * Based vaguely on the pxa mmc code:
10 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
23 #include <asm/cache.h>
24 #include <dm/device_compat.h>
25 #include <linux/err.h>
26 #include <power/regulator.h>
28 #include <fsl_esdhc_imx.h>
29 #include <fdt_support.h>
32 #include <asm-generic/gpio.h>
33 #include <dm/pinctrl.h>
35 #if !CONFIG_IS_ENABLED(BLK)
36 #include "mmc_private.h"
39 DECLARE_GLOBAL_DATA_PTR;
41 #define SDHCI_IRQ_EN_BITS (IRQSTATEN_CC | IRQSTATEN_TC | \
43 IRQSTATEN_CTOE | IRQSTATEN_CCE | IRQSTATEN_CEBE | \
44 IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE | \
45 IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR | \
47 #define MAX_TUNING_LOOP 40
48 #define ESDHC_DRIVER_STAGE_VALUE 0xffffffff
51 uint dsaddr; /* SDMA system address register */
52 uint blkattr; /* Block attributes register */
53 uint cmdarg; /* Command argument register */
54 uint xfertyp; /* Transfer type register */
55 uint cmdrsp0; /* Command response 0 register */
56 uint cmdrsp1; /* Command response 1 register */
57 uint cmdrsp2; /* Command response 2 register */
58 uint cmdrsp3; /* Command response 3 register */
59 uint datport; /* Buffer data port register */
60 uint prsstat; /* Present state register */
61 uint proctl; /* Protocol control register */
62 uint sysctl; /* System Control Register */
63 uint irqstat; /* Interrupt status register */
64 uint irqstaten; /* Interrupt status enable register */
65 uint irqsigen; /* Interrupt signal enable register */
66 uint autoc12err; /* Auto CMD error status register */
67 uint hostcapblt; /* Host controller capabilities register */
68 uint wml; /* Watermark level register */
69 uint mixctrl; /* For USDHC */
70 char reserved1[4]; /* reserved */
71 uint fevt; /* Force event register */
72 uint admaes; /* ADMA error status register */
73 uint adsaddr; /* ADMA system address register */
77 uint clktunectrlstatus;
85 uint tuning_ctrl; /* on i.MX6/7/8/RT */
87 uint hostver; /* Host controller version register */
88 char reserved6[4]; /* reserved */
89 uint dmaerraddr; /* DMA error address register */
90 char reserved7[4]; /* reserved */
91 uint dmaerrattr; /* DMA error attribute register */
92 char reserved8[4]; /* reserved */
93 uint hostcapblt2; /* Host controller capabilities register 2 */
94 char reserved9[8]; /* reserved */
95 uint tcr; /* Tuning control register */
96 char reserved10[28]; /* reserved */
97 uint sddirctl; /* SD direction control register */
98 char reserved11[712];/* reserved */
99 uint scr; /* eSDHC control register */
102 struct fsl_esdhc_plat {
103 struct mmc_config cfg;
107 struct esdhc_soc_data {
112 * struct fsl_esdhc_priv
114 * @esdhc_regs: registers of the sdhc controller
115 * @sdhc_clk: Current clk of the sdhc controller
116 * @bus_width: bus width, 1bit, 4bit or 8bit
119 * Following is used when Driver Model is enabled for MMC
120 * @dev: pointer for the device
121 * @non_removable: 0: removable; 1: non-removable
122 * @broken_cd: 0: use GPIO for card detect; 1: Do not use GPIO for card detect
123 * @wp_enable: 1: enable checking wp; 0: no check
124 * @vs18_enable: 1: use 1.8V voltage; 0: use 3.3V
125 * @flags: ESDHC_FLAG_xx in include/fsl_esdhc_imx.h
126 * @caps: controller capabilities
127 * @tuning_step: tuning step setting in tuning_ctrl register
128 * @start_tuning_tap: the start point for tuning in tuning_ctrl register
129 * @strobe_dll_delay_target: settings in strobe_dllctrl
130 * @signal_voltage: indicating the current voltage
131 * @cd_gpio: gpio for card detection
132 * @wp_gpio: gpio for write protection
134 struct fsl_esdhc_priv {
135 struct fsl_esdhc *esdhc_regs;
136 unsigned int sdhc_clk;
140 unsigned int bus_width;
141 #if !CONFIG_IS_ENABLED(BLK)
152 u32 tuning_start_tap;
153 u32 strobe_dll_delay_target;
155 #if CONFIG_IS_ENABLED(DM_REGULATOR)
156 struct udevice *vqmmc_dev;
157 struct udevice *vmmc_dev;
159 #if CONFIG_IS_ENABLED(DM_GPIO)
160 struct gpio_desc cd_gpio;
161 struct gpio_desc wp_gpio;
165 /* Return the XFERTYP flags for a given command and data packet */
166 static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
171 xfertyp |= XFERTYP_DPSEL;
172 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
173 xfertyp |= XFERTYP_DMAEN;
175 if (data->blocks > 1) {
176 xfertyp |= XFERTYP_MSBSEL;
177 xfertyp |= XFERTYP_BCEN;
178 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
179 xfertyp |= XFERTYP_AC12EN;
183 if (data->flags & MMC_DATA_READ)
184 xfertyp |= XFERTYP_DTDSEL;
187 if (cmd->resp_type & MMC_RSP_CRC)
188 xfertyp |= XFERTYP_CCCEN;
189 if (cmd->resp_type & MMC_RSP_OPCODE)
190 xfertyp |= XFERTYP_CICEN;
191 if (cmd->resp_type & MMC_RSP_136)
192 xfertyp |= XFERTYP_RSPTYP_136;
193 else if (cmd->resp_type & MMC_RSP_BUSY)
194 xfertyp |= XFERTYP_RSPTYP_48_BUSY;
195 else if (cmd->resp_type & MMC_RSP_PRESENT)
196 xfertyp |= XFERTYP_RSPTYP_48;
198 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
199 xfertyp |= XFERTYP_CMDTYP_ABORT;
201 return XFERTYP_CMD(cmd->cmdidx) | xfertyp;
204 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
206 * PIO Read/Write Mode reduce the performace as DMA is not used in this mode.
208 static void esdhc_pio_read_write(struct fsl_esdhc_priv *priv,
209 struct mmc_data *data)
211 struct fsl_esdhc *regs = priv->esdhc_regs;
219 if (data->flags & MMC_DATA_READ) {
220 blocks = data->blocks;
223 start = get_timer(0);
224 size = data->blocksize;
225 irqstat = esdhc_read32(®s->irqstat);
226 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BREN)) {
227 if (get_timer(start) > PIO_TIMEOUT) {
228 printf("\nData Read Failed in PIO Mode.");
232 while (size && (!(irqstat & IRQSTAT_TC))) {
233 udelay(100); /* Wait before last byte transfer complete */
234 irqstat = esdhc_read32(®s->irqstat);
235 databuf = in_le32(®s->datport);
236 *((uint *)buffer) = databuf;
243 blocks = data->blocks;
244 buffer = (char *)data->src;
246 start = get_timer(0);
247 size = data->blocksize;
248 irqstat = esdhc_read32(®s->irqstat);
249 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BWEN)) {
250 if (get_timer(start) > PIO_TIMEOUT) {
251 printf("\nData Write Failed in PIO Mode.");
255 while (size && (!(irqstat & IRQSTAT_TC))) {
256 udelay(100); /* Wait before last byte transfer complete */
257 databuf = *((uint *)buffer);
260 irqstat = esdhc_read32(®s->irqstat);
261 out_le32(®s->datport, databuf);
269 static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
270 struct mmc_data *data)
273 struct fsl_esdhc *regs = priv->esdhc_regs;
274 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
279 wml_value = data->blocksize/4;
281 if (data->flags & MMC_DATA_READ) {
282 if (wml_value > WML_RD_WML_MAX)
283 wml_value = WML_RD_WML_MAX_VAL;
285 esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
286 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
287 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
288 addr = virt_to_phys((void *)(data->dest));
289 if (upper_32_bits(addr))
290 printf("Error found for upper 32 bits\n");
292 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
294 esdhc_write32(®s->dsaddr, (u32)data->dest);
298 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
299 flush_dcache_range((ulong)data->src,
300 (ulong)data->src+data->blocks
303 if (wml_value > WML_WR_WML_MAX)
304 wml_value = WML_WR_WML_MAX_VAL;
305 if (priv->wp_enable) {
306 if ((esdhc_read32(®s->prsstat) &
307 PRSSTAT_WPSPL) == 0) {
308 printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
312 #if CONFIG_IS_ENABLED(DM_GPIO)
313 if (dm_gpio_is_valid(&priv->wp_gpio) &&
314 dm_gpio_get_value(&priv->wp_gpio)) {
315 printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
321 esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK,
323 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
324 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
325 addr = virt_to_phys((void *)(data->src));
326 if (upper_32_bits(addr))
327 printf("Error found for upper 32 bits\n");
329 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
331 esdhc_write32(®s->dsaddr, (u32)data->src);
336 esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize);
338 /* Calculate the timeout period for data transactions */
340 * 1)Timeout period = (2^(timeout+13)) SD Clock cycles
341 * 2)Timeout period should be minimum 0.250sec as per SD Card spec
342 * So, Number of SD Clock cycles for 0.25sec should be minimum
343 * (SD Clock/sec * 0.25 sec) SD Clock cycles
344 * = (mmc->clock * 1/4) SD Clock cycles
346 * => (2^(timeout+13)) >= mmc->clock * 1/4
347 * Taking log2 both the sides
348 * => timeout + 13 >= log2(mmc->clock/4)
349 * Rounding up to next power of 2
350 * => timeout + 13 = log2(mmc->clock/4) + 1
351 * => timeout + 13 = fls(mmc->clock/4)
353 * However, the MMC spec "It is strongly recommended for hosts to
354 * implement more than 500ms timeout value even if the card
355 * indicates the 250ms maximum busy length." Even the previous
356 * value of 300ms is known to be insufficient for some cards.
358 * => timeout + 13 = fls(mmc->clock/2)
360 timeout = fls(mmc->clock/2);
369 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
370 if ((timeout == 4) || (timeout == 8) || (timeout == 12))
374 #ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE
377 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16);
382 static void check_and_invalidate_dcache_range
383 (struct mmc_cmd *cmd,
384 struct mmc_data *data) {
387 unsigned size = roundup(ARCH_DMA_MINALIGN,
388 data->blocks*data->blocksize);
389 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
392 addr = virt_to_phys((void *)(data->dest));
393 if (upper_32_bits(addr))
394 printf("Error found for upper 32 bits\n");
396 start = lower_32_bits(addr);
398 start = (unsigned)data->dest;
401 invalidate_dcache_range(start, end);
404 #ifdef CONFIG_MCF5441x
406 * Swaps 32-bit words to little-endian byte order.
408 static inline void sd_swap_dma_buff(struct mmc_data *data)
410 int i, size = data->blocksize >> 2;
411 u32 *buffer = (u32 *)data->dest;
414 while (data->blocks--) {
415 for (i = 0; i < size; i++) {
416 sw = __sw32(*buffer);
424 * Sends a command out on the bus. Takes the mmc pointer,
425 * a command pointer, and an optional data pointer.
427 static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
428 struct mmc_cmd *cmd, struct mmc_data *data)
433 u32 flags = IRQSTAT_CC | IRQSTAT_CTOE;
434 struct fsl_esdhc *regs = priv->esdhc_regs;
437 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
438 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
442 esdhc_write32(®s->irqstat, -1);
446 /* Wait for the bus to be idle */
447 while ((esdhc_read32(®s->prsstat) & PRSSTAT_CICHB) ||
448 (esdhc_read32(®s->prsstat) & PRSSTAT_CIDHB))
451 while (esdhc_read32(®s->prsstat) & PRSSTAT_DLA)
454 /* Wait at least 8 SD clock cycles before the next command */
456 * Note: This is way more than 8 cycles, but 1ms seems to
457 * resolve timing issues with some cards
461 /* Set up for a data transfer if we have one */
463 err = esdhc_setup_data(priv, mmc, data);
467 if (data->flags & MMC_DATA_READ)
468 check_and_invalidate_dcache_range(cmd, data);
471 /* Figure out the transfer arguments */
472 xfertyp = esdhc_xfertyp(cmd, data);
475 esdhc_write32(®s->irqsigen, 0);
477 /* Send the command */
478 esdhc_write32(®s->cmdarg, cmd->cmdarg);
479 #if defined(CONFIG_FSL_USDHC)
480 esdhc_write32(®s->mixctrl,
481 (esdhc_read32(®s->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F)
482 | (mmc->ddr_mode ? XFERTYP_DDREN : 0));
483 esdhc_write32(®s->xfertyp, xfertyp & 0xFFFF0000);
485 esdhc_write32(®s->xfertyp, xfertyp);
488 if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
489 (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200))
492 /* Wait for the command to complete */
493 start = get_timer(0);
494 while (!(esdhc_read32(®s->irqstat) & flags)) {
495 if (get_timer(start) > 1000) {
501 irqstat = esdhc_read32(®s->irqstat);
503 if (irqstat & CMD_ERR) {
508 if (irqstat & IRQSTAT_CTOE) {
513 /* Switch voltage to 1.8V if CMD11 succeeded */
514 if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V) {
515 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
517 printf("Run CMD11 1.8V switch\n");
518 /* Sleep for 5 ms - max time for card to switch to 1.8V */
522 /* Workaround for ESDHC errata ENGcm03648 */
523 if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
526 /* Poll on DATA0 line for cmd with busy signal for 5000 ms */
527 while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
534 printf("Timeout waiting for DAT0 to go high!\n");
540 /* Copy the response to the response buffer */
541 if (cmd->resp_type & MMC_RSP_136) {
542 u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
544 cmdrsp3 = esdhc_read32(®s->cmdrsp3);
545 cmdrsp2 = esdhc_read32(®s->cmdrsp2);
546 cmdrsp1 = esdhc_read32(®s->cmdrsp1);
547 cmdrsp0 = esdhc_read32(®s->cmdrsp0);
548 cmd->response[0] = (cmdrsp3 << 8) | (cmdrsp2 >> 24);
549 cmd->response[1] = (cmdrsp2 << 8) | (cmdrsp1 >> 24);
550 cmd->response[2] = (cmdrsp1 << 8) | (cmdrsp0 >> 24);
551 cmd->response[3] = (cmdrsp0 << 8);
553 cmd->response[0] = esdhc_read32(®s->cmdrsp0);
555 /* Wait until all of the blocks are transferred */
557 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
558 esdhc_pio_read_write(priv, data);
560 flags = DATA_COMPLETE;
561 if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
562 (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200)) {
567 irqstat = esdhc_read32(®s->irqstat);
569 if (irqstat & IRQSTAT_DTOE) {
574 if (irqstat & DATA_ERR) {
578 } while ((irqstat & flags) != flags);
581 * Need invalidate the dcache here again to avoid any
582 * cache-fill during the DMA operations such as the
583 * speculative pre-fetching etc.
585 if (data->flags & MMC_DATA_READ) {
586 check_and_invalidate_dcache_range(cmd, data);
587 #ifdef CONFIG_MCF5441x
588 sd_swap_dma_buff(data);
595 /* Reset CMD and DATA portions on error */
597 esdhc_write32(®s->sysctl, esdhc_read32(®s->sysctl) |
599 while (esdhc_read32(®s->sysctl) & SYSCTL_RSTC)
603 esdhc_write32(®s->sysctl,
604 esdhc_read32(®s->sysctl) |
606 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTD))
610 /* If this was CMD11, then notify that power cycle is needed */
611 if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V)
612 printf("CMD11 to switch to 1.8V mode failed, card requires power cycle.\n");
615 esdhc_write32(®s->irqstat, -1);
620 static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
622 struct fsl_esdhc *regs = priv->esdhc_regs;
626 /* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
627 int pre_div = (regs == (struct fsl_esdhc *)MMC_SDHC3_BASE_ADDR) ? 2 : 1;
634 int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
635 int sdhc_clk = priv->sdhc_clk;
638 while (sdhc_clk / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256)
641 while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16)
647 clk = (pre_div << 8) | (div << 4);
649 #ifdef CONFIG_FSL_USDHC
650 esdhc_clrbits32(®s->vendorspec, VENDORSPEC_CKEN);
652 esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
655 esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
659 #ifdef CONFIG_FSL_USDHC
660 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);
662 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
668 #ifdef MMC_SUPPORTS_TUNING
669 static int esdhc_change_pinstate(struct udevice *dev)
671 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
674 switch (priv->mode) {
677 ret = pinctrl_select_state(dev, "state_100mhz");
683 ret = pinctrl_select_state(dev, "state_200mhz");
686 ret = pinctrl_select_state(dev, "default");
691 printf("%s %d error\n", __func__, priv->mode);
696 static void esdhc_reset_tuning(struct mmc *mmc)
698 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
699 struct fsl_esdhc *regs = priv->esdhc_regs;
701 if (priv->flags & ESDHC_FLAG_USDHC) {
702 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
703 esdhc_clrbits32(®s->autoc12err,
704 MIX_CTRL_SMPCLK_SEL |
710 static void esdhc_set_strobe_dll(struct mmc *mmc)
712 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
713 struct fsl_esdhc *regs = priv->esdhc_regs;
716 if (priv->clock > ESDHC_STROBE_DLL_CLK_FREQ) {
717 writel(ESDHC_STROBE_DLL_CTRL_RESET, ®s->strobe_dllctrl);
720 * enable strobe dll ctrl and adjust the delay target
721 * for the uSDHC loopback read clock
723 val = ESDHC_STROBE_DLL_CTRL_ENABLE |
724 (priv->strobe_dll_delay_target <<
725 ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT);
726 writel(val, ®s->strobe_dllctrl);
727 /* wait 1us to make sure strobe dll status register stable */
729 val = readl(®s->strobe_dllstat);
730 if (!(val & ESDHC_STROBE_DLL_STS_REF_LOCK))
731 pr_warn("HS400 strobe DLL status REF not lock!\n");
732 if (!(val & ESDHC_STROBE_DLL_STS_SLV_LOCK))
733 pr_warn("HS400 strobe DLL status SLV not lock!\n");
737 static int esdhc_set_timing(struct mmc *mmc)
739 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
740 struct fsl_esdhc *regs = priv->esdhc_regs;
743 mixctrl = readl(®s->mixctrl);
744 mixctrl &= ~(MIX_CTRL_DDREN | MIX_CTRL_HS400_EN);
746 switch (mmc->selected_mode) {
748 esdhc_reset_tuning(mmc);
749 writel(mixctrl, ®s->mixctrl);
753 mixctrl |= MIX_CTRL_DDREN | MIX_CTRL_HS400_EN;
754 writel(mixctrl, ®s->mixctrl);
755 esdhc_set_strobe_dll(mmc);
765 writel(mixctrl, ®s->mixctrl);
769 mixctrl |= MIX_CTRL_DDREN;
770 writel(mixctrl, ®s->mixctrl);
773 printf("Not supported %d\n", mmc->selected_mode);
777 priv->mode = mmc->selected_mode;
779 return esdhc_change_pinstate(mmc->dev);
782 static int esdhc_set_voltage(struct mmc *mmc)
784 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
785 struct fsl_esdhc *regs = priv->esdhc_regs;
788 priv->signal_voltage = mmc->signal_voltage;
789 switch (mmc->signal_voltage) {
790 case MMC_SIGNAL_VOLTAGE_330:
791 if (priv->vs18_enable)
793 #if CONFIG_IS_ENABLED(DM_REGULATOR)
794 if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
795 ret = regulator_set_value(priv->vqmmc_dev, 3300000);
797 printf("Setting to 3.3V error");
805 esdhc_clrbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
806 if (!(esdhc_read32(®s->vendorspec) &
807 ESDHC_VENDORSPEC_VSELECT))
811 case MMC_SIGNAL_VOLTAGE_180:
812 #if CONFIG_IS_ENABLED(DM_REGULATOR)
813 if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
814 ret = regulator_set_value(priv->vqmmc_dev, 1800000);
816 printf("Setting to 1.8V error");
821 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
822 if (esdhc_read32(®s->vendorspec) & ESDHC_VENDORSPEC_VSELECT)
826 case MMC_SIGNAL_VOLTAGE_120:
833 static void esdhc_stop_tuning(struct mmc *mmc)
837 cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
839 cmd.resp_type = MMC_RSP_R1b;
841 dm_mmc_send_cmd(mmc->dev, &cmd, NULL);
844 static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode)
846 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
847 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
848 struct fsl_esdhc *regs = priv->esdhc_regs;
849 struct mmc *mmc = &plat->mmc;
850 u32 irqstaten = readl(®s->irqstaten);
851 u32 irqsigen = readl(®s->irqsigen);
852 int i, ret = -ETIMEDOUT;
855 /* clock tuning is not needed for upto 52MHz */
856 if (mmc->clock <= 52000000)
859 /* This is readw/writew SDHCI_HOST_CONTROL2 when tuning */
860 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
861 val = readl(®s->autoc12err);
862 mixctrl = readl(®s->mixctrl);
863 val &= ~MIX_CTRL_SMPCLK_SEL;
864 mixctrl &= ~(MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN);
866 val |= MIX_CTRL_EXE_TUNE;
867 mixctrl |= MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN;
869 writel(val, ®s->autoc12err);
870 writel(mixctrl, ®s->mixctrl);
873 /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); */
874 mixctrl = readl(®s->mixctrl);
875 mixctrl = MIX_CTRL_DTDSEL_READ | (mixctrl & ~MIX_CTRL_SDHCI_MASK);
876 writel(mixctrl, ®s->mixctrl);
878 writel(IRQSTATEN_BRR, ®s->irqstaten);
879 writel(IRQSTATEN_BRR, ®s->irqsigen);
882 * Issue opcode repeatedly till Execute Tuning is set to 0 or the number
883 * of loops reaches 40 times.
885 for (i = 0; i < MAX_TUNING_LOOP; i++) {
888 if (opcode == MMC_CMD_SEND_TUNING_BLOCK_HS200) {
889 if (mmc->bus_width == 8)
890 writel(0x7080, ®s->blkattr);
891 else if (mmc->bus_width == 4)
892 writel(0x7040, ®s->blkattr);
894 writel(0x7040, ®s->blkattr);
897 /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE) */
898 val = readl(®s->mixctrl);
899 val = MIX_CTRL_DTDSEL_READ | (val & ~MIX_CTRL_SDHCI_MASK);
900 writel(val, ®s->mixctrl);
902 /* We are using STD tuning, no need to check return value */
903 mmc_send_tuning(mmc, opcode, NULL);
905 ctrl = readl(®s->autoc12err);
906 if ((!(ctrl & MIX_CTRL_EXE_TUNE)) &&
907 (ctrl & MIX_CTRL_SMPCLK_SEL)) {
909 * need to wait some time, make sure sd/mmc fininsh
910 * send out tuning data, otherwise, the sd/mmc can't
911 * response to any command when the card still out
912 * put the tuning data.
919 /* Add 1ms delay for SD and eMMC */
923 writel(irqstaten, ®s->irqstaten);
924 writel(irqsigen, ®s->irqsigen);
926 esdhc_stop_tuning(mmc);
932 static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
934 struct fsl_esdhc *regs = priv->esdhc_regs;
935 int ret __maybe_unused;
938 /* Set the clock speed */
940 if (clock < mmc->cfg->f_min)
941 clock = mmc->cfg->f_min;
943 if (priv->clock != clock)
944 set_sysctl(priv, mmc, clock);
946 #ifdef MMC_SUPPORTS_TUNING
947 if (mmc->clk_disable) {
948 #ifdef CONFIG_FSL_USDHC
949 esdhc_clrbits32(®s->vendorspec, VENDORSPEC_CKEN);
951 esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
954 #ifdef CONFIG_FSL_USDHC
955 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN |
958 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
962 if (priv->mode != mmc->selected_mode) {
963 ret = esdhc_set_timing(mmc);
965 printf("esdhc_set_timing error %d\n", ret);
970 if (priv->signal_voltage != mmc->signal_voltage) {
971 ret = esdhc_set_voltage(mmc);
973 printf("esdhc_set_voltage error %d\n", ret);
979 /* Set the bus width */
980 esdhc_clrbits32(®s->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
982 if (mmc->bus_width == 4)
983 esdhc_setbits32(®s->proctl, PROCTL_DTW_4);
984 else if (mmc->bus_width == 8)
985 esdhc_setbits32(®s->proctl, PROCTL_DTW_8);
990 static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
992 struct fsl_esdhc *regs = priv->esdhc_regs;
995 /* Reset the entire host controller */
996 esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
998 /* Wait until the controller is available */
999 start = get_timer(0);
1000 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA)) {
1001 if (get_timer(start) > 1000)
1005 #if defined(CONFIG_FSL_USDHC)
1006 /* RSTA doesn't reset MMC_BOOT register, so manually reset it */
1007 esdhc_write32(®s->mmcboot, 0x0);
1008 /* Reset MIX_CTRL and CLK_TUNE_CTRL_STATUS regs to 0 */
1009 esdhc_write32(®s->mixctrl, 0x0);
1010 esdhc_write32(®s->clktunectrlstatus, 0x0);
1012 /* Put VEND_SPEC to default value */
1013 if (priv->vs18_enable)
1014 esdhc_write32(®s->vendorspec, (VENDORSPEC_INIT |
1015 ESDHC_VENDORSPEC_VSELECT));
1017 esdhc_write32(®s->vendorspec, VENDORSPEC_INIT);
1019 /* Disable DLL_CTRL delay line */
1020 esdhc_write32(®s->dllctrl, 0x0);
1024 /* Enable cache snooping */
1025 esdhc_write32(®s->scr, 0x00000040);
1028 #ifndef CONFIG_FSL_USDHC
1029 esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
1031 esdhc_setbits32(®s->vendorspec, VENDORSPEC_HCKEN | VENDORSPEC_IPGEN);
1034 /* Set the initial clock speed */
1035 mmc_set_clock(mmc, 400000, MMC_CLK_ENABLE);
1037 /* Disable the BRR and BWR bits in IRQSTAT */
1038 esdhc_clrbits32(®s->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
1040 #ifdef CONFIG_MCF5441x
1041 esdhc_write32(®s->proctl, PROCTL_INIT | PROCTL_D3CD);
1043 /* Put the PROCTL reg back to the default */
1044 esdhc_write32(®s->proctl, PROCTL_INIT);
1047 /* Set timout to the maximum value */
1048 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
1053 static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
1055 struct fsl_esdhc *regs = priv->esdhc_regs;
1058 #ifdef CONFIG_ESDHC_DETECT_QUIRK
1059 if (CONFIG_ESDHC_DETECT_QUIRK)
1063 #if CONFIG_IS_ENABLED(DM_MMC)
1064 if (priv->non_removable)
1067 if (priv->broken_cd)
1069 #if CONFIG_IS_ENABLED(DM_GPIO)
1070 if (dm_gpio_is_valid(&priv->cd_gpio))
1071 return dm_gpio_get_value(&priv->cd_gpio);
1075 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout)
1081 static int esdhc_reset(struct fsl_esdhc *regs)
1085 /* reset the controller */
1086 esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
1088 /* hardware clears the bit when it is done */
1089 start = get_timer(0);
1090 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA)) {
1091 if (get_timer(start) > 100) {
1092 printf("MMC/SD: Reset never completed.\n");
1100 #if !CONFIG_IS_ENABLED(DM_MMC)
1101 static int esdhc_getcd(struct mmc *mmc)
1103 struct fsl_esdhc_priv *priv = mmc->priv;
1105 return esdhc_getcd_common(priv);
1108 static int esdhc_init(struct mmc *mmc)
1110 struct fsl_esdhc_priv *priv = mmc->priv;
1112 return esdhc_init_common(priv, mmc);
1115 static int esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
1116 struct mmc_data *data)
1118 struct fsl_esdhc_priv *priv = mmc->priv;
1120 return esdhc_send_cmd_common(priv, mmc, cmd, data);
1123 static int esdhc_set_ios(struct mmc *mmc)
1125 struct fsl_esdhc_priv *priv = mmc->priv;
1127 return esdhc_set_ios_common(priv, mmc);
1130 static const struct mmc_ops esdhc_ops = {
1131 .getcd = esdhc_getcd,
1133 .send_cmd = esdhc_send_cmd,
1134 .set_ios = esdhc_set_ios,
1138 static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
1139 struct fsl_esdhc_plat *plat)
1141 struct mmc_config *cfg;
1142 struct fsl_esdhc *regs;
1143 u32 caps, voltage_caps;
1149 regs = priv->esdhc_regs;
1151 /* First reset the eSDHC controller */
1152 ret = esdhc_reset(regs);
1156 #ifdef CONFIG_MCF5441x
1157 /* ColdFire, using SDHC_DATA[3] for card detection */
1158 esdhc_write32(®s->proctl, PROCTL_INIT | PROCTL_D3CD);
1161 #ifndef CONFIG_FSL_USDHC
1162 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
1163 | SYSCTL_IPGEN | SYSCTL_CKEN);
1164 /* Clearing tuning bits in case ROM has set it already */
1165 esdhc_write32(®s->mixctrl, 0);
1166 esdhc_write32(®s->autoc12err, 0);
1167 esdhc_write32(®s->clktunectrlstatus, 0);
1169 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN |
1170 VENDORSPEC_HCKEN | VENDORSPEC_IPGEN | VENDORSPEC_CKEN);
1173 if (priv->vs18_enable)
1174 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
1176 writel(SDHCI_IRQ_EN_BITS, ®s->irqstaten);
1178 #ifndef CONFIG_DM_MMC
1179 memset(cfg, '\0', sizeof(*cfg));
1183 caps = esdhc_read32(®s->hostcapblt);
1185 #ifdef CONFIG_MCF5441x
1187 * MCF5441x RM declares in more points that sdhc clock speed must
1188 * never exceed 25 Mhz. From this, the HS bit needs to be disabled
1189 * from host capabilities.
1191 caps &= ~ESDHC_HOSTCAPBLT_HSS;
1194 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
1195 caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
1196 ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
1199 /* T4240 host controller capabilities register should have VS33 bit */
1200 #ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
1201 caps = caps | ESDHC_HOSTCAPBLT_VS33;
1204 if (caps & ESDHC_HOSTCAPBLT_VS18)
1205 voltage_caps |= MMC_VDD_165_195;
1206 if (caps & ESDHC_HOSTCAPBLT_VS30)
1207 voltage_caps |= MMC_VDD_29_30 | MMC_VDD_30_31;
1208 if (caps & ESDHC_HOSTCAPBLT_VS33)
1209 voltage_caps |= MMC_VDD_32_33 | MMC_VDD_33_34;
1211 cfg->name = "FSL_SDHC";
1212 #if !CONFIG_IS_ENABLED(DM_MMC)
1213 cfg->ops = &esdhc_ops;
1215 #ifdef CONFIG_SYS_SD_VOLTAGE
1216 cfg->voltages = CONFIG_SYS_SD_VOLTAGE;
1218 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
1220 if ((cfg->voltages & voltage_caps) == 0) {
1221 printf("voltage not supported by controller\n");
1225 if (priv->bus_width == 8)
1226 cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
1227 else if (priv->bus_width == 4)
1228 cfg->host_caps = MMC_MODE_4BIT;
1230 cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
1231 #ifdef CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE
1232 cfg->host_caps |= MMC_MODE_DDR_52MHz;
1235 if (priv->bus_width > 0) {
1236 if (priv->bus_width < 8)
1237 cfg->host_caps &= ~MMC_MODE_8BIT;
1238 if (priv->bus_width < 4)
1239 cfg->host_caps &= ~MMC_MODE_4BIT;
1242 if (caps & ESDHC_HOSTCAPBLT_HSS)
1243 cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
1245 #ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
1246 if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
1247 cfg->host_caps &= ~MMC_MODE_8BIT;
1250 cfg->host_caps |= priv->caps;
1252 cfg->f_min = 400000;
1253 cfg->f_max = min(priv->sdhc_clk, (u32)200000000);
1255 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
1257 writel(0, ®s->dllctrl);
1258 if (priv->flags & ESDHC_FLAG_USDHC) {
1259 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
1260 u32 val = readl(®s->tuning_ctrl);
1262 val |= ESDHC_STD_TUNING_EN;
1263 val &= ~ESDHC_TUNING_START_TAP_MASK;
1264 val |= priv->tuning_start_tap;
1265 val &= ~ESDHC_TUNING_STEP_MASK;
1266 val |= (priv->tuning_step) << ESDHC_TUNING_STEP_SHIFT;
1267 writel(val, ®s->tuning_ctrl);
1274 #if !CONFIG_IS_ENABLED(DM_MMC)
1275 static int fsl_esdhc_cfg_to_priv(struct fsl_esdhc_cfg *cfg,
1276 struct fsl_esdhc_priv *priv)
1281 priv->esdhc_regs = (struct fsl_esdhc *)(unsigned long)(cfg->esdhc_base);
1282 priv->bus_width = cfg->max_bus_width;
1283 priv->sdhc_clk = cfg->sdhc_clk;
1284 priv->wp_enable = cfg->wp_enable;
1285 priv->vs18_enable = cfg->vs18_enable;
1290 int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
1292 struct fsl_esdhc_plat *plat;
1293 struct fsl_esdhc_priv *priv;
1300 priv = calloc(sizeof(struct fsl_esdhc_priv), 1);
1303 plat = calloc(sizeof(struct fsl_esdhc_plat), 1);
1309 ret = fsl_esdhc_cfg_to_priv(cfg, priv);
1311 debug("%s xlate failure\n", __func__);
1317 ret = fsl_esdhc_init(priv, plat);
1319 debug("%s init failure\n", __func__);
1325 mmc = mmc_create(&plat->cfg, priv);
1334 int fsl_esdhc_mmc_init(bd_t *bis)
1336 struct fsl_esdhc_cfg *cfg;
1338 cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
1339 cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
1340 cfg->sdhc_clk = gd->arch.sdhc_clk;
1341 return fsl_esdhc_initialize(bis, cfg);
1345 #ifdef CONFIG_OF_LIBFDT
1346 __weak int esdhc_status_fixup(void *blob, const char *compat)
1348 #ifdef CONFIG_FSL_ESDHC_PIN_MUX
1349 if (!hwconfig("esdhc")) {
1350 do_fixup_by_compat(blob, compat, "status", "disabled",
1351 sizeof("disabled"), 1);
1358 void fdt_fixup_esdhc(void *blob, bd_t *bd)
1360 const char *compat = "fsl,esdhc";
1362 if (esdhc_status_fixup(blob, compat))
1365 do_fixup_by_compat_u32(blob, compat, "clock-frequency",
1366 gd->arch.sdhc_clk, 1);
1370 #if CONFIG_IS_ENABLED(DM_MMC)
1371 #include <asm/arch/clock.h>
1372 __weak void init_clk_usdhc(u32 index)
1376 static int fsl_esdhc_probe(struct udevice *dev)
1378 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
1379 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1380 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1381 const void *fdt = gd->fdt_blob;
1382 int node = dev_of_offset(dev);
1383 struct esdhc_soc_data *data =
1384 (struct esdhc_soc_data *)dev_get_driver_data(dev);
1385 #if CONFIG_IS_ENABLED(DM_REGULATOR)
1386 struct udevice *vqmmc_dev;
1391 #if !CONFIG_IS_ENABLED(BLK)
1392 struct blk_desc *bdesc;
1396 addr = dev_read_addr(dev);
1397 if (addr == FDT_ADDR_T_NONE)
1399 priv->esdhc_regs = (struct fsl_esdhc *)addr;
1403 priv->flags = data->flags;
1405 val = dev_read_u32_default(dev, "bus-width", -1);
1407 priv->bus_width = 8;
1409 priv->bus_width = 4;
1411 priv->bus_width = 1;
1413 val = fdtdec_get_int(fdt, node, "fsl,tuning-step", 1);
1414 priv->tuning_step = val;
1415 val = fdtdec_get_int(fdt, node, "fsl,tuning-start-tap",
1416 ESDHC_TUNING_START_TAP_DEFAULT);
1417 priv->tuning_start_tap = val;
1418 val = fdtdec_get_int(fdt, node, "fsl,strobe-dll-delay-target",
1419 ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT);
1420 priv->strobe_dll_delay_target = val;
1422 if (dev_read_bool(dev, "broken-cd"))
1423 priv->broken_cd = 1;
1425 if (dev_read_bool(dev, "non-removable")) {
1426 priv->non_removable = 1;
1428 priv->non_removable = 0;
1429 #if CONFIG_IS_ENABLED(DM_GPIO)
1430 gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio,
1435 if (dev_read_prop(dev, "fsl,wp-controller", NULL)) {
1436 priv->wp_enable = 1;
1438 priv->wp_enable = 0;
1439 #if CONFIG_IS_ENABLED(DM_GPIO)
1440 gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
1445 priv->vs18_enable = 0;
1447 #if CONFIG_IS_ENABLED(DM_REGULATOR)
1449 * If emmc I/O has a fixed voltage at 1.8V, this must be provided,
1450 * otherwise, emmc will work abnormally.
1452 ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
1454 dev_dbg(dev, "no vqmmc-supply\n");
1456 ret = regulator_set_enable(vqmmc_dev, true);
1458 dev_err(dev, "fail to enable vqmmc-supply\n");
1462 if (regulator_get_value(vqmmc_dev) == 1800000)
1463 priv->vs18_enable = 1;
1469 * Because lack of clk driver, if SDHC clk is not enabled,
1470 * need to enable it first before this driver is invoked.
1472 * we use MXC_ESDHC_CLK to get clk freq.
1473 * If one would like to make this function work,
1474 * the aliases should be provided in dts as this:
1482 * Then if your board only supports mmc2 and mmc3, but we can
1483 * correctly get the seq as 2 and 3, then let mxc_get_clock
1487 init_clk_usdhc(dev->seq);
1489 #if CONFIG_IS_ENABLED(CLK)
1490 /* Assigned clock already set clock */
1491 ret = clk_get_by_name(dev, "per", &priv->per_clk);
1493 printf("Failed to get per_clk\n");
1496 ret = clk_enable(&priv->per_clk);
1498 printf("Failed to enable per_clk\n");
1502 priv->sdhc_clk = clk_get_rate(&priv->per_clk);
1504 priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
1505 if (priv->sdhc_clk <= 0) {
1506 dev_err(dev, "Unable to get clk for %s\n", dev->name);
1511 ret = fsl_esdhc_init(priv, plat);
1513 dev_err(dev, "fsl_esdhc_init failure\n");
1517 ret = mmc_of_parse(dev, &plat->cfg);
1522 mmc->cfg = &plat->cfg;
1524 #if !CONFIG_IS_ENABLED(BLK)
1527 /* Setup dsr related values */
1529 mmc->dsr = ESDHC_DRIVER_STAGE_VALUE;
1530 /* Setup the universal parts of the block interface just once */
1531 bdesc = mmc_get_blk_desc(mmc);
1532 bdesc->if_type = IF_TYPE_MMC;
1533 bdesc->removable = 1;
1534 bdesc->devnum = mmc_get_next_devnum();
1535 bdesc->block_read = mmc_bread;
1536 bdesc->block_write = mmc_bwrite;
1537 bdesc->block_erase = mmc_berase;
1539 /* setup initial part type */
1540 bdesc->part_type = mmc->cfg->part_type;
1546 return esdhc_init_common(priv, mmc);
1549 #if CONFIG_IS_ENABLED(DM_MMC)
1550 static int fsl_esdhc_get_cd(struct udevice *dev)
1552 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1554 return esdhc_getcd_common(priv);
1557 static int fsl_esdhc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
1558 struct mmc_data *data)
1560 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1561 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1563 return esdhc_send_cmd_common(priv, &plat->mmc, cmd, data);
1566 static int fsl_esdhc_set_ios(struct udevice *dev)
1568 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1569 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1571 return esdhc_set_ios_common(priv, &plat->mmc);
1574 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
1575 static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev)
1577 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1578 struct fsl_esdhc *regs = priv->esdhc_regs;
1581 m = readl(®s->mixctrl);
1582 m |= MIX_CTRL_HS400_ES;
1583 writel(m, ®s->mixctrl);
1589 static const struct dm_mmc_ops fsl_esdhc_ops = {
1590 .get_cd = fsl_esdhc_get_cd,
1591 .send_cmd = fsl_esdhc_send_cmd,
1592 .set_ios = fsl_esdhc_set_ios,
1593 #ifdef MMC_SUPPORTS_TUNING
1594 .execute_tuning = fsl_esdhc_execute_tuning,
1596 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
1597 .set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe,
1602 static struct esdhc_soc_data usdhc_imx7d_data = {
1603 .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
1604 | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
1608 static struct esdhc_soc_data usdhc_imx8qm_data = {
1609 .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING |
1610 ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 |
1611 ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES,
1614 static const struct udevice_id fsl_esdhc_ids[] = {
1615 { .compatible = "fsl,imx53-esdhc", },
1616 { .compatible = "fsl,imx6ul-usdhc", },
1617 { .compatible = "fsl,imx6sx-usdhc", },
1618 { .compatible = "fsl,imx6sl-usdhc", },
1619 { .compatible = "fsl,imx6q-usdhc", },
1620 { .compatible = "fsl,imx7d-usdhc", .data = (ulong)&usdhc_imx7d_data,},
1621 { .compatible = "fsl,imx7ulp-usdhc", },
1622 { .compatible = "fsl,imx8qm-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1623 { .compatible = "fsl,imx8mm-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1624 { .compatible = "fsl,imx8mn-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1625 { .compatible = "fsl,imx8mq-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1626 { .compatible = "fsl,imxrt-usdhc", },
1627 { .compatible = "fsl,esdhc", },
1631 #if CONFIG_IS_ENABLED(BLK)
1632 static int fsl_esdhc_bind(struct udevice *dev)
1634 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1636 return mmc_bind(dev, &plat->mmc, &plat->cfg);
1640 U_BOOT_DRIVER(fsl_esdhc) = {
1641 .name = "fsl-esdhc-mmc",
1643 .of_match = fsl_esdhc_ids,
1644 .ops = &fsl_esdhc_ops,
1645 #if CONFIG_IS_ENABLED(BLK)
1646 .bind = fsl_esdhc_bind,
1648 .probe = fsl_esdhc_probe,
1649 .platdata_auto_alloc_size = sizeof(struct fsl_esdhc_plat),
1650 .priv_auto_alloc_size = sizeof(struct fsl_esdhc_priv),