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/delay.h>
26 #include <linux/err.h>
27 #include <power/regulator.h>
29 #include <fsl_esdhc_imx.h>
30 #include <fdt_support.h>
33 #include <asm-generic/gpio.h>
34 #include <dm/pinctrl.h>
36 #if !CONFIG_IS_ENABLED(BLK)
37 #include "mmc_private.h"
40 DECLARE_GLOBAL_DATA_PTR;
42 #define SDHCI_IRQ_EN_BITS (IRQSTATEN_CC | IRQSTATEN_TC | \
44 IRQSTATEN_CTOE | IRQSTATEN_CCE | IRQSTATEN_CEBE | \
45 IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE | \
46 IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR | \
48 #define MAX_TUNING_LOOP 40
49 #define ESDHC_DRIVER_STAGE_VALUE 0xffffffff
52 uint dsaddr; /* SDMA system address register */
53 uint blkattr; /* Block attributes register */
54 uint cmdarg; /* Command argument register */
55 uint xfertyp; /* Transfer type register */
56 uint cmdrsp0; /* Command response 0 register */
57 uint cmdrsp1; /* Command response 1 register */
58 uint cmdrsp2; /* Command response 2 register */
59 uint cmdrsp3; /* Command response 3 register */
60 uint datport; /* Buffer data port register */
61 uint prsstat; /* Present state register */
62 uint proctl; /* Protocol control register */
63 uint sysctl; /* System Control Register */
64 uint irqstat; /* Interrupt status register */
65 uint irqstaten; /* Interrupt status enable register */
66 uint irqsigen; /* Interrupt signal enable register */
67 uint autoc12err; /* Auto CMD error status register */
68 uint hostcapblt; /* Host controller capabilities register */
69 uint wml; /* Watermark level register */
70 uint mixctrl; /* For USDHC */
71 char reserved1[4]; /* reserved */
72 uint fevt; /* Force event register */
73 uint admaes; /* ADMA error status register */
74 uint adsaddr; /* ADMA system address register */
78 uint clktunectrlstatus;
86 uint tuning_ctrl; /* on i.MX6/7/8/RT */
88 uint hostver; /* Host controller version register */
89 char reserved6[4]; /* reserved */
90 uint dmaerraddr; /* DMA error address register */
91 char reserved7[4]; /* reserved */
92 uint dmaerrattr; /* DMA error attribute register */
93 char reserved8[4]; /* reserved */
94 uint hostcapblt2; /* Host controller capabilities register 2 */
95 char reserved9[8]; /* reserved */
96 uint tcr; /* Tuning control register */
97 char reserved10[28]; /* reserved */
98 uint sddirctl; /* SD direction control register */
99 char reserved11[712];/* reserved */
100 uint scr; /* eSDHC control register */
103 struct fsl_esdhc_plat {
104 struct mmc_config cfg;
108 struct esdhc_soc_data {
113 * struct fsl_esdhc_priv
115 * @esdhc_regs: registers of the sdhc controller
116 * @sdhc_clk: Current clk of the sdhc controller
117 * @bus_width: bus width, 1bit, 4bit or 8bit
120 * Following is used when Driver Model is enabled for MMC
121 * @dev: pointer for the device
122 * @non_removable: 0: removable; 1: non-removable
123 * @broken_cd: 0: use GPIO for card detect; 1: Do not use GPIO for card detect
124 * @wp_enable: 1: enable checking wp; 0: no check
125 * @vs18_enable: 1: use 1.8V voltage; 0: use 3.3V
126 * @flags: ESDHC_FLAG_xx in include/fsl_esdhc_imx.h
127 * @caps: controller capabilities
128 * @tuning_step: tuning step setting in tuning_ctrl register
129 * @start_tuning_tap: the start point for tuning in tuning_ctrl register
130 * @strobe_dll_delay_target: settings in strobe_dllctrl
131 * @signal_voltage: indicating the current voltage
132 * @cd_gpio: gpio for card detection
133 * @wp_gpio: gpio for write protection
135 struct fsl_esdhc_priv {
136 struct fsl_esdhc *esdhc_regs;
137 unsigned int sdhc_clk;
141 unsigned int bus_width;
142 #if !CONFIG_IS_ENABLED(BLK)
153 u32 tuning_start_tap;
154 u32 strobe_dll_delay_target;
156 #if CONFIG_IS_ENABLED(DM_REGULATOR)
157 struct udevice *vqmmc_dev;
158 struct udevice *vmmc_dev;
160 #if CONFIG_IS_ENABLED(DM_GPIO)
161 struct gpio_desc cd_gpio;
162 struct gpio_desc wp_gpio;
166 /* Return the XFERTYP flags for a given command and data packet */
167 static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
172 xfertyp |= XFERTYP_DPSEL;
173 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
174 xfertyp |= XFERTYP_DMAEN;
176 if (data->blocks > 1) {
177 xfertyp |= XFERTYP_MSBSEL;
178 xfertyp |= XFERTYP_BCEN;
179 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
180 xfertyp |= XFERTYP_AC12EN;
184 if (data->flags & MMC_DATA_READ)
185 xfertyp |= XFERTYP_DTDSEL;
188 if (cmd->resp_type & MMC_RSP_CRC)
189 xfertyp |= XFERTYP_CCCEN;
190 if (cmd->resp_type & MMC_RSP_OPCODE)
191 xfertyp |= XFERTYP_CICEN;
192 if (cmd->resp_type & MMC_RSP_136)
193 xfertyp |= XFERTYP_RSPTYP_136;
194 else if (cmd->resp_type & MMC_RSP_BUSY)
195 xfertyp |= XFERTYP_RSPTYP_48_BUSY;
196 else if (cmd->resp_type & MMC_RSP_PRESENT)
197 xfertyp |= XFERTYP_RSPTYP_48;
199 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
200 xfertyp |= XFERTYP_CMDTYP_ABORT;
202 return XFERTYP_CMD(cmd->cmdidx) | xfertyp;
205 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
207 * PIO Read/Write Mode reduce the performace as DMA is not used in this mode.
209 static void esdhc_pio_read_write(struct fsl_esdhc_priv *priv,
210 struct mmc_data *data)
212 struct fsl_esdhc *regs = priv->esdhc_regs;
220 if (data->flags & MMC_DATA_READ) {
221 blocks = data->blocks;
224 start = get_timer(0);
225 size = data->blocksize;
226 irqstat = esdhc_read32(®s->irqstat);
227 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BREN)) {
228 if (get_timer(start) > PIO_TIMEOUT) {
229 printf("\nData Read Failed in PIO Mode.");
233 while (size && (!(irqstat & IRQSTAT_TC))) {
234 udelay(100); /* Wait before last byte transfer complete */
235 irqstat = esdhc_read32(®s->irqstat);
236 databuf = in_le32(®s->datport);
237 *((uint *)buffer) = databuf;
244 blocks = data->blocks;
245 buffer = (char *)data->src;
247 start = get_timer(0);
248 size = data->blocksize;
249 irqstat = esdhc_read32(®s->irqstat);
250 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BWEN)) {
251 if (get_timer(start) > PIO_TIMEOUT) {
252 printf("\nData Write Failed in PIO Mode.");
256 while (size && (!(irqstat & IRQSTAT_TC))) {
257 udelay(100); /* Wait before last byte transfer complete */
258 databuf = *((uint *)buffer);
261 irqstat = esdhc_read32(®s->irqstat);
262 out_le32(®s->datport, databuf);
270 static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
271 struct mmc_data *data)
274 struct fsl_esdhc *regs = priv->esdhc_regs;
275 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
280 wml_value = data->blocksize/4;
282 if (data->flags & MMC_DATA_READ) {
283 if (wml_value > WML_RD_WML_MAX)
284 wml_value = WML_RD_WML_MAX_VAL;
286 esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
287 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
288 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
289 addr = virt_to_phys((void *)(data->dest));
290 if (upper_32_bits(addr))
291 printf("Error found for upper 32 bits\n");
293 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
295 esdhc_write32(®s->dsaddr, (u32)data->dest);
299 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
300 flush_dcache_range((ulong)data->src,
301 (ulong)data->src+data->blocks
304 if (wml_value > WML_WR_WML_MAX)
305 wml_value = WML_WR_WML_MAX_VAL;
306 if (priv->wp_enable) {
307 if ((esdhc_read32(®s->prsstat) &
308 PRSSTAT_WPSPL) == 0) {
309 printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
313 #if CONFIG_IS_ENABLED(DM_GPIO)
314 if (dm_gpio_is_valid(&priv->wp_gpio) &&
315 dm_gpio_get_value(&priv->wp_gpio)) {
316 printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
322 esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK,
324 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
325 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
326 addr = virt_to_phys((void *)(data->src));
327 if (upper_32_bits(addr))
328 printf("Error found for upper 32 bits\n");
330 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
332 esdhc_write32(®s->dsaddr, (u32)data->src);
337 esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize);
339 /* Calculate the timeout period for data transactions */
341 * 1)Timeout period = (2^(timeout+13)) SD Clock cycles
342 * 2)Timeout period should be minimum 0.250sec as per SD Card spec
343 * So, Number of SD Clock cycles for 0.25sec should be minimum
344 * (SD Clock/sec * 0.25 sec) SD Clock cycles
345 * = (mmc->clock * 1/4) SD Clock cycles
347 * => (2^(timeout+13)) >= mmc->clock * 1/4
348 * Taking log2 both the sides
349 * => timeout + 13 >= log2(mmc->clock/4)
350 * Rounding up to next power of 2
351 * => timeout + 13 = log2(mmc->clock/4) + 1
352 * => timeout + 13 = fls(mmc->clock/4)
354 * However, the MMC spec "It is strongly recommended for hosts to
355 * implement more than 500ms timeout value even if the card
356 * indicates the 250ms maximum busy length." Even the previous
357 * value of 300ms is known to be insufficient for some cards.
359 * => timeout + 13 = fls(mmc->clock/2)
361 timeout = fls(mmc->clock/2);
370 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
371 if ((timeout == 4) || (timeout == 8) || (timeout == 12))
375 #ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE
378 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16);
383 static void check_and_invalidate_dcache_range
384 (struct mmc_cmd *cmd,
385 struct mmc_data *data) {
388 unsigned size = roundup(ARCH_DMA_MINALIGN,
389 data->blocks*data->blocksize);
390 #if defined(CONFIG_S32V234) || defined(CONFIG_IMX8) || defined(CONFIG_IMX8M)
393 addr = virt_to_phys((void *)(data->dest));
394 if (upper_32_bits(addr))
395 printf("Error found for upper 32 bits\n");
397 start = lower_32_bits(addr);
399 start = (unsigned)data->dest;
402 invalidate_dcache_range(start, end);
405 #ifdef CONFIG_MCF5441x
407 * Swaps 32-bit words to little-endian byte order.
409 static inline void sd_swap_dma_buff(struct mmc_data *data)
411 int i, size = data->blocksize >> 2;
412 u32 *buffer = (u32 *)data->dest;
415 while (data->blocks--) {
416 for (i = 0; i < size; i++) {
417 sw = __sw32(*buffer);
425 * Sends a command out on the bus. Takes the mmc pointer,
426 * a command pointer, and an optional data pointer.
428 static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
429 struct mmc_cmd *cmd, struct mmc_data *data)
434 u32 flags = IRQSTAT_CC | IRQSTAT_CTOE;
435 struct fsl_esdhc *regs = priv->esdhc_regs;
438 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
439 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
443 esdhc_write32(®s->irqstat, -1);
447 /* Wait for the bus to be idle */
448 while ((esdhc_read32(®s->prsstat) & PRSSTAT_CICHB) ||
449 (esdhc_read32(®s->prsstat) & PRSSTAT_CIDHB))
452 while (esdhc_read32(®s->prsstat) & PRSSTAT_DLA)
455 /* Wait at least 8 SD clock cycles before the next command */
457 * Note: This is way more than 8 cycles, but 1ms seems to
458 * resolve timing issues with some cards
462 /* Set up for a data transfer if we have one */
464 err = esdhc_setup_data(priv, mmc, data);
468 if (data->flags & MMC_DATA_READ)
469 check_and_invalidate_dcache_range(cmd, data);
472 /* Figure out the transfer arguments */
473 xfertyp = esdhc_xfertyp(cmd, data);
476 esdhc_write32(®s->irqsigen, 0);
478 /* Send the command */
479 esdhc_write32(®s->cmdarg, cmd->cmdarg);
480 #if defined(CONFIG_FSL_USDHC)
481 esdhc_write32(®s->mixctrl,
482 (esdhc_read32(®s->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F)
483 | (mmc->ddr_mode ? XFERTYP_DDREN : 0));
484 esdhc_write32(®s->xfertyp, xfertyp & 0xFFFF0000);
486 esdhc_write32(®s->xfertyp, xfertyp);
489 if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
490 (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200))
493 /* Wait for the command to complete */
494 start = get_timer(0);
495 while (!(esdhc_read32(®s->irqstat) & flags)) {
496 if (get_timer(start) > 1000) {
502 irqstat = esdhc_read32(®s->irqstat);
504 if (irqstat & CMD_ERR) {
509 if (irqstat & IRQSTAT_CTOE) {
514 /* Switch voltage to 1.8V if CMD11 succeeded */
515 if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V) {
516 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
518 printf("Run CMD11 1.8V switch\n");
519 /* Sleep for 5 ms - max time for card to switch to 1.8V */
523 /* Workaround for ESDHC errata ENGcm03648 */
524 if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
527 /* Poll on DATA0 line for cmd with busy signal for 5000 ms */
528 while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
535 printf("Timeout waiting for DAT0 to go high!\n");
541 /* Copy the response to the response buffer */
542 if (cmd->resp_type & MMC_RSP_136) {
543 u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
545 cmdrsp3 = esdhc_read32(®s->cmdrsp3);
546 cmdrsp2 = esdhc_read32(®s->cmdrsp2);
547 cmdrsp1 = esdhc_read32(®s->cmdrsp1);
548 cmdrsp0 = esdhc_read32(®s->cmdrsp0);
549 cmd->response[0] = (cmdrsp3 << 8) | (cmdrsp2 >> 24);
550 cmd->response[1] = (cmdrsp2 << 8) | (cmdrsp1 >> 24);
551 cmd->response[2] = (cmdrsp1 << 8) | (cmdrsp0 >> 24);
552 cmd->response[3] = (cmdrsp0 << 8);
554 cmd->response[0] = esdhc_read32(®s->cmdrsp0);
556 /* Wait until all of the blocks are transferred */
558 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
559 esdhc_pio_read_write(priv, data);
561 flags = DATA_COMPLETE;
562 if ((cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK) ||
563 (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200)) {
568 irqstat = esdhc_read32(®s->irqstat);
570 if (irqstat & IRQSTAT_DTOE) {
575 if (irqstat & DATA_ERR) {
579 } while ((irqstat & flags) != flags);
582 * Need invalidate the dcache here again to avoid any
583 * cache-fill during the DMA operations such as the
584 * speculative pre-fetching etc.
586 if (data->flags & MMC_DATA_READ) {
587 check_and_invalidate_dcache_range(cmd, data);
588 #ifdef CONFIG_MCF5441x
589 sd_swap_dma_buff(data);
596 /* Reset CMD and DATA portions on error */
598 esdhc_write32(®s->sysctl, esdhc_read32(®s->sysctl) |
600 while (esdhc_read32(®s->sysctl) & SYSCTL_RSTC)
604 esdhc_write32(®s->sysctl,
605 esdhc_read32(®s->sysctl) |
607 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTD))
611 /* If this was CMD11, then notify that power cycle is needed */
612 if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V)
613 printf("CMD11 to switch to 1.8V mode failed, card requires power cycle.\n");
616 esdhc_write32(®s->irqstat, -1);
621 static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
623 struct fsl_esdhc *regs = priv->esdhc_regs;
627 /* For i.MX53 eSDHCv3, SYSCTL.SDCLKFS may not be set to 0. */
628 int pre_div = (regs == (struct fsl_esdhc *)MMC_SDHC3_BASE_ADDR) ? 2 : 1;
635 int ddr_pre_div = mmc->ddr_mode ? 2 : 1;
636 int sdhc_clk = priv->sdhc_clk;
639 while (sdhc_clk / (16 * pre_div * ddr_pre_div) > clock && pre_div < 256)
642 while (sdhc_clk / (div * pre_div * ddr_pre_div) > clock && div < 16)
648 clk = (pre_div << 8) | (div << 4);
650 #ifdef CONFIG_FSL_USDHC
651 esdhc_clrbits32(®s->vendorspec, VENDORSPEC_CKEN);
653 esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
656 esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
660 #ifdef CONFIG_FSL_USDHC
661 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN | VENDORSPEC_CKEN);
663 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
669 #ifdef MMC_SUPPORTS_TUNING
670 static int esdhc_change_pinstate(struct udevice *dev)
672 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
675 switch (priv->mode) {
678 ret = pinctrl_select_state(dev, "state_100mhz");
684 ret = pinctrl_select_state(dev, "state_200mhz");
687 ret = pinctrl_select_state(dev, "default");
692 printf("%s %d error\n", __func__, priv->mode);
697 static void esdhc_reset_tuning(struct mmc *mmc)
699 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
700 struct fsl_esdhc *regs = priv->esdhc_regs;
702 if (priv->flags & ESDHC_FLAG_USDHC) {
703 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
704 esdhc_clrbits32(®s->autoc12err,
705 MIX_CTRL_SMPCLK_SEL |
711 static void esdhc_set_strobe_dll(struct mmc *mmc)
713 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
714 struct fsl_esdhc *regs = priv->esdhc_regs;
717 if (priv->clock > ESDHC_STROBE_DLL_CLK_FREQ) {
718 writel(ESDHC_STROBE_DLL_CTRL_RESET, ®s->strobe_dllctrl);
721 * enable strobe dll ctrl and adjust the delay target
722 * for the uSDHC loopback read clock
724 val = ESDHC_STROBE_DLL_CTRL_ENABLE |
725 (priv->strobe_dll_delay_target <<
726 ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_SHIFT);
727 writel(val, ®s->strobe_dllctrl);
728 /* wait 1us to make sure strobe dll status register stable */
730 val = readl(®s->strobe_dllstat);
731 if (!(val & ESDHC_STROBE_DLL_STS_REF_LOCK))
732 pr_warn("HS400 strobe DLL status REF not lock!\n");
733 if (!(val & ESDHC_STROBE_DLL_STS_SLV_LOCK))
734 pr_warn("HS400 strobe DLL status SLV not lock!\n");
738 static int esdhc_set_timing(struct mmc *mmc)
740 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
741 struct fsl_esdhc *regs = priv->esdhc_regs;
744 mixctrl = readl(®s->mixctrl);
745 mixctrl &= ~(MIX_CTRL_DDREN | MIX_CTRL_HS400_EN);
747 switch (mmc->selected_mode) {
749 esdhc_reset_tuning(mmc);
750 writel(mixctrl, ®s->mixctrl);
754 mixctrl |= MIX_CTRL_DDREN | MIX_CTRL_HS400_EN;
755 writel(mixctrl, ®s->mixctrl);
756 esdhc_set_strobe_dll(mmc);
766 writel(mixctrl, ®s->mixctrl);
770 mixctrl |= MIX_CTRL_DDREN;
771 writel(mixctrl, ®s->mixctrl);
774 printf("Not supported %d\n", mmc->selected_mode);
778 priv->mode = mmc->selected_mode;
780 return esdhc_change_pinstate(mmc->dev);
783 static int esdhc_set_voltage(struct mmc *mmc)
785 struct fsl_esdhc_priv *priv = dev_get_priv(mmc->dev);
786 struct fsl_esdhc *regs = priv->esdhc_regs;
789 priv->signal_voltage = mmc->signal_voltage;
790 switch (mmc->signal_voltage) {
791 case MMC_SIGNAL_VOLTAGE_330:
792 if (priv->vs18_enable)
794 #if CONFIG_IS_ENABLED(DM_REGULATOR)
795 if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
796 ret = regulator_set_value(priv->vqmmc_dev, 3300000);
798 printf("Setting to 3.3V error");
806 esdhc_clrbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
807 if (!(esdhc_read32(®s->vendorspec) &
808 ESDHC_VENDORSPEC_VSELECT))
812 case MMC_SIGNAL_VOLTAGE_180:
813 #if CONFIG_IS_ENABLED(DM_REGULATOR)
814 if (!IS_ERR_OR_NULL(priv->vqmmc_dev)) {
815 ret = regulator_set_value(priv->vqmmc_dev, 1800000);
817 printf("Setting to 1.8V error");
822 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
823 if (esdhc_read32(®s->vendorspec) & ESDHC_VENDORSPEC_VSELECT)
827 case MMC_SIGNAL_VOLTAGE_120:
834 static void esdhc_stop_tuning(struct mmc *mmc)
838 cmd.cmdidx = MMC_CMD_STOP_TRANSMISSION;
840 cmd.resp_type = MMC_RSP_R1b;
842 dm_mmc_send_cmd(mmc->dev, &cmd, NULL);
845 static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode)
847 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
848 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
849 struct fsl_esdhc *regs = priv->esdhc_regs;
850 struct mmc *mmc = &plat->mmc;
851 u32 irqstaten = readl(®s->irqstaten);
852 u32 irqsigen = readl(®s->irqsigen);
853 int i, ret = -ETIMEDOUT;
856 /* clock tuning is not needed for upto 52MHz */
857 if (mmc->clock <= 52000000)
860 /* This is readw/writew SDHCI_HOST_CONTROL2 when tuning */
861 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
862 val = readl(®s->autoc12err);
863 mixctrl = readl(®s->mixctrl);
864 val &= ~MIX_CTRL_SMPCLK_SEL;
865 mixctrl &= ~(MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN);
867 val |= MIX_CTRL_EXE_TUNE;
868 mixctrl |= MIX_CTRL_FBCLK_SEL | MIX_CTRL_AUTO_TUNE_EN;
870 writel(val, ®s->autoc12err);
871 writel(mixctrl, ®s->mixctrl);
874 /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE); */
875 mixctrl = readl(®s->mixctrl);
876 mixctrl = MIX_CTRL_DTDSEL_READ | (mixctrl & ~MIX_CTRL_SDHCI_MASK);
877 writel(mixctrl, ®s->mixctrl);
879 writel(IRQSTATEN_BRR, ®s->irqstaten);
880 writel(IRQSTATEN_BRR, ®s->irqsigen);
883 * Issue opcode repeatedly till Execute Tuning is set to 0 or the number
884 * of loops reaches 40 times.
886 for (i = 0; i < MAX_TUNING_LOOP; i++) {
889 if (opcode == MMC_CMD_SEND_TUNING_BLOCK_HS200) {
890 if (mmc->bus_width == 8)
891 writel(0x7080, ®s->blkattr);
892 else if (mmc->bus_width == 4)
893 writel(0x7040, ®s->blkattr);
895 writel(0x7040, ®s->blkattr);
898 /* sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE) */
899 val = readl(®s->mixctrl);
900 val = MIX_CTRL_DTDSEL_READ | (val & ~MIX_CTRL_SDHCI_MASK);
901 writel(val, ®s->mixctrl);
903 /* We are using STD tuning, no need to check return value */
904 mmc_send_tuning(mmc, opcode, NULL);
906 ctrl = readl(®s->autoc12err);
907 if ((!(ctrl & MIX_CTRL_EXE_TUNE)) &&
908 (ctrl & MIX_CTRL_SMPCLK_SEL)) {
910 * need to wait some time, make sure sd/mmc fininsh
911 * send out tuning data, otherwise, the sd/mmc can't
912 * response to any command when the card still out
913 * put the tuning data.
920 /* Add 1ms delay for SD and eMMC */
924 writel(irqstaten, ®s->irqstaten);
925 writel(irqsigen, ®s->irqsigen);
927 esdhc_stop_tuning(mmc);
933 static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
935 struct fsl_esdhc *regs = priv->esdhc_regs;
936 int ret __maybe_unused;
939 /* Set the clock speed */
941 if (clock < mmc->cfg->f_min)
942 clock = mmc->cfg->f_min;
944 if (priv->clock != clock)
945 set_sysctl(priv, mmc, clock);
947 #ifdef MMC_SUPPORTS_TUNING
948 if (mmc->clk_disable) {
949 #ifdef CONFIG_FSL_USDHC
950 esdhc_clrbits32(®s->vendorspec, VENDORSPEC_CKEN);
952 esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
955 #ifdef CONFIG_FSL_USDHC
956 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN |
959 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
963 if (priv->mode != mmc->selected_mode) {
964 ret = esdhc_set_timing(mmc);
966 printf("esdhc_set_timing error %d\n", ret);
971 if (priv->signal_voltage != mmc->signal_voltage) {
972 ret = esdhc_set_voltage(mmc);
974 printf("esdhc_set_voltage error %d\n", ret);
980 /* Set the bus width */
981 esdhc_clrbits32(®s->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
983 if (mmc->bus_width == 4)
984 esdhc_setbits32(®s->proctl, PROCTL_DTW_4);
985 else if (mmc->bus_width == 8)
986 esdhc_setbits32(®s->proctl, PROCTL_DTW_8);
991 static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
993 struct fsl_esdhc *regs = priv->esdhc_regs;
996 /* Reset the entire host controller */
997 esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
999 /* Wait until the controller is available */
1000 start = get_timer(0);
1001 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA)) {
1002 if (get_timer(start) > 1000)
1006 #if defined(CONFIG_FSL_USDHC)
1007 /* RSTA doesn't reset MMC_BOOT register, so manually reset it */
1008 esdhc_write32(®s->mmcboot, 0x0);
1009 /* Reset MIX_CTRL and CLK_TUNE_CTRL_STATUS regs to 0 */
1010 esdhc_write32(®s->mixctrl, 0x0);
1011 esdhc_write32(®s->clktunectrlstatus, 0x0);
1013 /* Put VEND_SPEC to default value */
1014 if (priv->vs18_enable)
1015 esdhc_write32(®s->vendorspec, (VENDORSPEC_INIT |
1016 ESDHC_VENDORSPEC_VSELECT));
1018 esdhc_write32(®s->vendorspec, VENDORSPEC_INIT);
1020 /* Disable DLL_CTRL delay line */
1021 esdhc_write32(®s->dllctrl, 0x0);
1025 /* Enable cache snooping */
1026 esdhc_write32(®s->scr, 0x00000040);
1029 #ifndef CONFIG_FSL_USDHC
1030 esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
1032 esdhc_setbits32(®s->vendorspec, VENDORSPEC_HCKEN | VENDORSPEC_IPGEN);
1035 /* Set the initial clock speed */
1036 mmc_set_clock(mmc, 400000, MMC_CLK_ENABLE);
1038 /* Disable the BRR and BWR bits in IRQSTAT */
1039 esdhc_clrbits32(®s->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
1041 #ifdef CONFIG_MCF5441x
1042 esdhc_write32(®s->proctl, PROCTL_INIT | PROCTL_D3CD);
1044 /* Put the PROCTL reg back to the default */
1045 esdhc_write32(®s->proctl, PROCTL_INIT);
1048 /* Set timout to the maximum value */
1049 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
1054 static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
1056 struct fsl_esdhc *regs = priv->esdhc_regs;
1059 #ifdef CONFIG_ESDHC_DETECT_QUIRK
1060 if (CONFIG_ESDHC_DETECT_QUIRK)
1064 #if CONFIG_IS_ENABLED(DM_MMC)
1065 if (priv->non_removable)
1068 if (priv->broken_cd)
1070 #if CONFIG_IS_ENABLED(DM_GPIO)
1071 if (dm_gpio_is_valid(&priv->cd_gpio))
1072 return dm_gpio_get_value(&priv->cd_gpio);
1076 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout)
1082 static int esdhc_reset(struct fsl_esdhc *regs)
1086 /* reset the controller */
1087 esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
1089 /* hardware clears the bit when it is done */
1090 start = get_timer(0);
1091 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA)) {
1092 if (get_timer(start) > 100) {
1093 printf("MMC/SD: Reset never completed.\n");
1101 #if !CONFIG_IS_ENABLED(DM_MMC)
1102 static int esdhc_getcd(struct mmc *mmc)
1104 struct fsl_esdhc_priv *priv = mmc->priv;
1106 return esdhc_getcd_common(priv);
1109 static int esdhc_init(struct mmc *mmc)
1111 struct fsl_esdhc_priv *priv = mmc->priv;
1113 return esdhc_init_common(priv, mmc);
1116 static int esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
1117 struct mmc_data *data)
1119 struct fsl_esdhc_priv *priv = mmc->priv;
1121 return esdhc_send_cmd_common(priv, mmc, cmd, data);
1124 static int esdhc_set_ios(struct mmc *mmc)
1126 struct fsl_esdhc_priv *priv = mmc->priv;
1128 return esdhc_set_ios_common(priv, mmc);
1131 static const struct mmc_ops esdhc_ops = {
1132 .getcd = esdhc_getcd,
1134 .send_cmd = esdhc_send_cmd,
1135 .set_ios = esdhc_set_ios,
1139 static int fsl_esdhc_init(struct fsl_esdhc_priv *priv,
1140 struct fsl_esdhc_plat *plat)
1142 struct mmc_config *cfg;
1143 struct fsl_esdhc *regs;
1144 u32 caps, voltage_caps;
1150 regs = priv->esdhc_regs;
1152 /* First reset the eSDHC controller */
1153 ret = esdhc_reset(regs);
1157 #ifdef CONFIG_MCF5441x
1158 /* ColdFire, using SDHC_DATA[3] for card detection */
1159 esdhc_write32(®s->proctl, PROCTL_INIT | PROCTL_D3CD);
1162 #ifndef CONFIG_FSL_USDHC
1163 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
1164 | SYSCTL_IPGEN | SYSCTL_CKEN);
1165 /* Clearing tuning bits in case ROM has set it already */
1166 esdhc_write32(®s->mixctrl, 0);
1167 esdhc_write32(®s->autoc12err, 0);
1168 esdhc_write32(®s->clktunectrlstatus, 0);
1170 esdhc_setbits32(®s->vendorspec, VENDORSPEC_PEREN |
1171 VENDORSPEC_HCKEN | VENDORSPEC_IPGEN | VENDORSPEC_CKEN);
1174 if (priv->vs18_enable)
1175 esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
1177 writel(SDHCI_IRQ_EN_BITS, ®s->irqstaten);
1179 #ifndef CONFIG_DM_MMC
1180 memset(cfg, '\0', sizeof(*cfg));
1184 caps = esdhc_read32(®s->hostcapblt);
1186 #ifdef CONFIG_MCF5441x
1188 * MCF5441x RM declares in more points that sdhc clock speed must
1189 * never exceed 25 Mhz. From this, the HS bit needs to be disabled
1190 * from host capabilities.
1192 caps &= ~ESDHC_HOSTCAPBLT_HSS;
1195 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
1196 caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
1197 ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
1200 /* T4240 host controller capabilities register should have VS33 bit */
1201 #ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
1202 caps = caps | ESDHC_HOSTCAPBLT_VS33;
1205 if (caps & ESDHC_HOSTCAPBLT_VS18)
1206 voltage_caps |= MMC_VDD_165_195;
1207 if (caps & ESDHC_HOSTCAPBLT_VS30)
1208 voltage_caps |= MMC_VDD_29_30 | MMC_VDD_30_31;
1209 if (caps & ESDHC_HOSTCAPBLT_VS33)
1210 voltage_caps |= MMC_VDD_32_33 | MMC_VDD_33_34;
1212 cfg->name = "FSL_SDHC";
1213 #if !CONFIG_IS_ENABLED(DM_MMC)
1214 cfg->ops = &esdhc_ops;
1216 #ifdef CONFIG_SYS_SD_VOLTAGE
1217 cfg->voltages = CONFIG_SYS_SD_VOLTAGE;
1219 cfg->voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
1221 if ((cfg->voltages & voltage_caps) == 0) {
1222 printf("voltage not supported by controller\n");
1226 if (priv->bus_width == 8)
1227 cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
1228 else if (priv->bus_width == 4)
1229 cfg->host_caps = MMC_MODE_4BIT;
1231 cfg->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
1232 #ifdef CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE
1233 cfg->host_caps |= MMC_MODE_DDR_52MHz;
1236 if (priv->bus_width > 0) {
1237 if (priv->bus_width < 8)
1238 cfg->host_caps &= ~MMC_MODE_8BIT;
1239 if (priv->bus_width < 4)
1240 cfg->host_caps &= ~MMC_MODE_4BIT;
1243 if (caps & ESDHC_HOSTCAPBLT_HSS)
1244 cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
1246 #ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
1247 if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
1248 cfg->host_caps &= ~MMC_MODE_8BIT;
1251 cfg->host_caps |= priv->caps;
1253 cfg->f_min = 400000;
1254 cfg->f_max = min(priv->sdhc_clk, (u32)200000000);
1256 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
1258 writel(0, ®s->dllctrl);
1259 if (priv->flags & ESDHC_FLAG_USDHC) {
1260 if (priv->flags & ESDHC_FLAG_STD_TUNING) {
1261 u32 val = readl(®s->tuning_ctrl);
1263 val |= ESDHC_STD_TUNING_EN;
1264 val &= ~ESDHC_TUNING_START_TAP_MASK;
1265 val |= priv->tuning_start_tap;
1266 val &= ~ESDHC_TUNING_STEP_MASK;
1267 val |= (priv->tuning_step) << ESDHC_TUNING_STEP_SHIFT;
1268 writel(val, ®s->tuning_ctrl);
1275 #if !CONFIG_IS_ENABLED(DM_MMC)
1276 static int fsl_esdhc_cfg_to_priv(struct fsl_esdhc_cfg *cfg,
1277 struct fsl_esdhc_priv *priv)
1282 priv->esdhc_regs = (struct fsl_esdhc *)(unsigned long)(cfg->esdhc_base);
1283 priv->bus_width = cfg->max_bus_width;
1284 priv->sdhc_clk = cfg->sdhc_clk;
1285 priv->wp_enable = cfg->wp_enable;
1286 priv->vs18_enable = cfg->vs18_enable;
1291 int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
1293 struct fsl_esdhc_plat *plat;
1294 struct fsl_esdhc_priv *priv;
1301 priv = calloc(sizeof(struct fsl_esdhc_priv), 1);
1304 plat = calloc(sizeof(struct fsl_esdhc_plat), 1);
1310 ret = fsl_esdhc_cfg_to_priv(cfg, priv);
1312 debug("%s xlate failure\n", __func__);
1318 ret = fsl_esdhc_init(priv, plat);
1320 debug("%s init failure\n", __func__);
1326 mmc = mmc_create(&plat->cfg, priv);
1335 int fsl_esdhc_mmc_init(bd_t *bis)
1337 struct fsl_esdhc_cfg *cfg;
1339 cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
1340 cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
1341 cfg->sdhc_clk = gd->arch.sdhc_clk;
1342 return fsl_esdhc_initialize(bis, cfg);
1346 #ifdef CONFIG_OF_LIBFDT
1347 __weak int esdhc_status_fixup(void *blob, const char *compat)
1349 #ifdef CONFIG_FSL_ESDHC_PIN_MUX
1350 if (!hwconfig("esdhc")) {
1351 do_fixup_by_compat(blob, compat, "status", "disabled",
1352 sizeof("disabled"), 1);
1359 void fdt_fixup_esdhc(void *blob, bd_t *bd)
1361 const char *compat = "fsl,esdhc";
1363 if (esdhc_status_fixup(blob, compat))
1366 do_fixup_by_compat_u32(blob, compat, "clock-frequency",
1367 gd->arch.sdhc_clk, 1);
1371 #if CONFIG_IS_ENABLED(DM_MMC)
1372 #include <asm/arch/clock.h>
1373 __weak void init_clk_usdhc(u32 index)
1377 static int fsl_esdhc_probe(struct udevice *dev)
1379 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
1380 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1381 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1382 const void *fdt = gd->fdt_blob;
1383 int node = dev_of_offset(dev);
1384 struct esdhc_soc_data *data =
1385 (struct esdhc_soc_data *)dev_get_driver_data(dev);
1386 #if CONFIG_IS_ENABLED(DM_REGULATOR)
1387 struct udevice *vqmmc_dev;
1392 #if !CONFIG_IS_ENABLED(BLK)
1393 struct blk_desc *bdesc;
1397 addr = dev_read_addr(dev);
1398 if (addr == FDT_ADDR_T_NONE)
1400 priv->esdhc_regs = (struct fsl_esdhc *)addr;
1404 priv->flags = data->flags;
1406 val = dev_read_u32_default(dev, "bus-width", -1);
1408 priv->bus_width = 8;
1410 priv->bus_width = 4;
1412 priv->bus_width = 1;
1414 val = fdtdec_get_int(fdt, node, "fsl,tuning-step", 1);
1415 priv->tuning_step = val;
1416 val = fdtdec_get_int(fdt, node, "fsl,tuning-start-tap",
1417 ESDHC_TUNING_START_TAP_DEFAULT);
1418 priv->tuning_start_tap = val;
1419 val = fdtdec_get_int(fdt, node, "fsl,strobe-dll-delay-target",
1420 ESDHC_STROBE_DLL_CTRL_SLV_DLY_TARGET_DEFAULT);
1421 priv->strobe_dll_delay_target = val;
1423 if (dev_read_bool(dev, "broken-cd"))
1424 priv->broken_cd = 1;
1426 if (dev_read_bool(dev, "non-removable")) {
1427 priv->non_removable = 1;
1429 priv->non_removable = 0;
1430 #if CONFIG_IS_ENABLED(DM_GPIO)
1431 gpio_request_by_name(dev, "cd-gpios", 0, &priv->cd_gpio,
1436 if (dev_read_prop(dev, "fsl,wp-controller", NULL)) {
1437 priv->wp_enable = 1;
1439 priv->wp_enable = 0;
1440 #if CONFIG_IS_ENABLED(DM_GPIO)
1441 gpio_request_by_name(dev, "wp-gpios", 0, &priv->wp_gpio,
1446 priv->vs18_enable = 0;
1448 #if CONFIG_IS_ENABLED(DM_REGULATOR)
1450 * If emmc I/O has a fixed voltage at 1.8V, this must be provided,
1451 * otherwise, emmc will work abnormally.
1453 ret = device_get_supply_regulator(dev, "vqmmc-supply", &vqmmc_dev);
1455 dev_dbg(dev, "no vqmmc-supply\n");
1457 ret = regulator_set_enable(vqmmc_dev, true);
1459 dev_err(dev, "fail to enable vqmmc-supply\n");
1463 if (regulator_get_value(vqmmc_dev) == 1800000)
1464 priv->vs18_enable = 1;
1470 * Because lack of clk driver, if SDHC clk is not enabled,
1471 * need to enable it first before this driver is invoked.
1473 * we use MXC_ESDHC_CLK to get clk freq.
1474 * If one would like to make this function work,
1475 * the aliases should be provided in dts as this:
1483 * Then if your board only supports mmc2 and mmc3, but we can
1484 * correctly get the seq as 2 and 3, then let mxc_get_clock
1488 init_clk_usdhc(dev->seq);
1490 #if CONFIG_IS_ENABLED(CLK)
1491 /* Assigned clock already set clock */
1492 ret = clk_get_by_name(dev, "per", &priv->per_clk);
1494 printf("Failed to get per_clk\n");
1497 ret = clk_enable(&priv->per_clk);
1499 printf("Failed to enable per_clk\n");
1503 priv->sdhc_clk = clk_get_rate(&priv->per_clk);
1505 priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
1506 if (priv->sdhc_clk <= 0) {
1507 dev_err(dev, "Unable to get clk for %s\n", dev->name);
1512 ret = fsl_esdhc_init(priv, plat);
1514 dev_err(dev, "fsl_esdhc_init failure\n");
1518 ret = mmc_of_parse(dev, &plat->cfg);
1523 mmc->cfg = &plat->cfg;
1525 #if !CONFIG_IS_ENABLED(BLK)
1528 /* Setup dsr related values */
1530 mmc->dsr = ESDHC_DRIVER_STAGE_VALUE;
1531 /* Setup the universal parts of the block interface just once */
1532 bdesc = mmc_get_blk_desc(mmc);
1533 bdesc->if_type = IF_TYPE_MMC;
1534 bdesc->removable = 1;
1535 bdesc->devnum = mmc_get_next_devnum();
1536 bdesc->block_read = mmc_bread;
1537 bdesc->block_write = mmc_bwrite;
1538 bdesc->block_erase = mmc_berase;
1540 /* setup initial part type */
1541 bdesc->part_type = mmc->cfg->part_type;
1547 return esdhc_init_common(priv, mmc);
1550 #if CONFIG_IS_ENABLED(DM_MMC)
1551 static int fsl_esdhc_get_cd(struct udevice *dev)
1553 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1555 return esdhc_getcd_common(priv);
1558 static int fsl_esdhc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
1559 struct mmc_data *data)
1561 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1562 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1564 return esdhc_send_cmd_common(priv, &plat->mmc, cmd, data);
1567 static int fsl_esdhc_set_ios(struct udevice *dev)
1569 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1570 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1572 return esdhc_set_ios_common(priv, &plat->mmc);
1575 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
1576 static int fsl_esdhc_set_enhanced_strobe(struct udevice *dev)
1578 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
1579 struct fsl_esdhc *regs = priv->esdhc_regs;
1582 m = readl(®s->mixctrl);
1583 m |= MIX_CTRL_HS400_ES;
1584 writel(m, ®s->mixctrl);
1590 static const struct dm_mmc_ops fsl_esdhc_ops = {
1591 .get_cd = fsl_esdhc_get_cd,
1592 .send_cmd = fsl_esdhc_send_cmd,
1593 .set_ios = fsl_esdhc_set_ios,
1594 #ifdef MMC_SUPPORTS_TUNING
1595 .execute_tuning = fsl_esdhc_execute_tuning,
1597 #if CONFIG_IS_ENABLED(MMC_HS400_ES_SUPPORT)
1598 .set_enhanced_strobe = fsl_esdhc_set_enhanced_strobe,
1603 static struct esdhc_soc_data usdhc_imx7d_data = {
1604 .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
1605 | ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
1609 static struct esdhc_soc_data usdhc_imx8qm_data = {
1610 .flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING |
1611 ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200 |
1612 ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES,
1615 static const struct udevice_id fsl_esdhc_ids[] = {
1616 { .compatible = "fsl,imx53-esdhc", },
1617 { .compatible = "fsl,imx6ul-usdhc", },
1618 { .compatible = "fsl,imx6sx-usdhc", },
1619 { .compatible = "fsl,imx6sl-usdhc", },
1620 { .compatible = "fsl,imx6q-usdhc", },
1621 { .compatible = "fsl,imx7d-usdhc", .data = (ulong)&usdhc_imx7d_data,},
1622 { .compatible = "fsl,imx7ulp-usdhc", },
1623 { .compatible = "fsl,imx8qm-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1624 { .compatible = "fsl,imx8mm-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1625 { .compatible = "fsl,imx8mn-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1626 { .compatible = "fsl,imx8mq-usdhc", .data = (ulong)&usdhc_imx8qm_data,},
1627 { .compatible = "fsl,imxrt-usdhc", },
1628 { .compatible = "fsl,esdhc", },
1632 #if CONFIG_IS_ENABLED(BLK)
1633 static int fsl_esdhc_bind(struct udevice *dev)
1635 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
1637 return mmc_bind(dev, &plat->mmc, &plat->cfg);
1641 U_BOOT_DRIVER(fsl_esdhc) = {
1642 .name = "fsl-esdhc-mmc",
1644 .of_match = fsl_esdhc_ids,
1645 .ops = &fsl_esdhc_ops,
1646 #if CONFIG_IS_ENABLED(BLK)
1647 .bind = fsl_esdhc_bind,
1649 .probe = fsl_esdhc_probe,
1650 .platdata_auto_alloc_size = sizeof(struct fsl_esdhc_plat),
1651 .priv_auto_alloc_size = sizeof(struct fsl_esdhc_priv),