1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc
4 * Copyright 2019 NXP Semiconductors
7 * Based vaguely on the pxa mmc code:
9 * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
21 #include <fsl_esdhc.h>
22 #include <fdt_support.h>
26 DECLARE_GLOBAL_DATA_PTR;
29 uint dsaddr; /* SDMA system address register */
30 uint blkattr; /* Block attributes register */
31 uint cmdarg; /* Command argument register */
32 uint xfertyp; /* Transfer type register */
33 uint cmdrsp0; /* Command response 0 register */
34 uint cmdrsp1; /* Command response 1 register */
35 uint cmdrsp2; /* Command response 2 register */
36 uint cmdrsp3; /* Command response 3 register */
37 uint datport; /* Buffer data port register */
38 uint prsstat; /* Present state register */
39 uint proctl; /* Protocol control register */
40 uint sysctl; /* System Control Register */
41 uint irqstat; /* Interrupt status register */
42 uint irqstaten; /* Interrupt status enable register */
43 uint irqsigen; /* Interrupt signal enable register */
44 uint autoc12err; /* Auto CMD error status register */
45 uint hostcapblt; /* Host controller capabilities register */
46 uint wml; /* Watermark level register */
47 char reserved1[8]; /* reserved */
48 uint fevt; /* Force event register */
49 uint admaes; /* ADMA error status register */
50 uint adsaddr; /* ADMA system address register */
52 uint hostver; /* Host controller version register */
53 char reserved3[4]; /* reserved */
54 uint dmaerraddr; /* DMA error address register */
55 char reserved4[4]; /* reserved */
56 uint dmaerrattr; /* DMA error attribute register */
57 char reserved5[4]; /* reserved */
58 uint hostcapblt2; /* Host controller capabilities register 2 */
59 char reserved6[756]; /* reserved */
60 uint esdhcctl; /* eSDHC control register */
63 struct fsl_esdhc_plat {
64 struct mmc_config cfg;
69 * struct fsl_esdhc_priv
71 * @esdhc_regs: registers of the sdhc controller
72 * @sdhc_clk: Current clk of the sdhc controller
73 * @bus_width: bus width, 1bit, 4bit or 8bit
76 * Following is used when Driver Model is enabled for MMC
77 * @dev: pointer for the device
78 * @non_removable: 0: removable; 1: non-removable
79 * @wp_enable: 1: enable checking wp; 0: no check
80 * @cd_gpio: gpio for card detection
81 * @wp_gpio: gpio for write protection
83 struct fsl_esdhc_priv {
84 struct fsl_esdhc *esdhc_regs;
85 unsigned int sdhc_clk;
88 #if !CONFIG_IS_ENABLED(DM_MMC)
96 /* Return the XFERTYP flags for a given command and data packet */
97 static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
102 xfertyp |= XFERTYP_DPSEL;
103 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
104 xfertyp |= XFERTYP_DMAEN;
106 if (data->blocks > 1) {
107 xfertyp |= XFERTYP_MSBSEL;
108 xfertyp |= XFERTYP_BCEN;
109 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
110 xfertyp |= XFERTYP_AC12EN;
114 if (data->flags & MMC_DATA_READ)
115 xfertyp |= XFERTYP_DTDSEL;
118 if (cmd->resp_type & MMC_RSP_CRC)
119 xfertyp |= XFERTYP_CCCEN;
120 if (cmd->resp_type & MMC_RSP_OPCODE)
121 xfertyp |= XFERTYP_CICEN;
122 if (cmd->resp_type & MMC_RSP_136)
123 xfertyp |= XFERTYP_RSPTYP_136;
124 else if (cmd->resp_type & MMC_RSP_BUSY)
125 xfertyp |= XFERTYP_RSPTYP_48_BUSY;
126 else if (cmd->resp_type & MMC_RSP_PRESENT)
127 xfertyp |= XFERTYP_RSPTYP_48;
129 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
130 xfertyp |= XFERTYP_CMDTYP_ABORT;
132 return XFERTYP_CMD(cmd->cmdidx) | xfertyp;
135 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
137 * PIO Read/Write Mode reduce the performace as DMA is not used in this mode.
139 static void esdhc_pio_read_write(struct fsl_esdhc_priv *priv,
140 struct mmc_data *data)
142 struct fsl_esdhc *regs = priv->esdhc_regs;
150 if (data->flags & MMC_DATA_READ) {
151 blocks = data->blocks;
154 start = get_timer(0);
155 size = data->blocksize;
156 irqstat = esdhc_read32(®s->irqstat);
157 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BREN)) {
158 if (get_timer(start) > PIO_TIMEOUT) {
159 printf("\nData Read Failed in PIO Mode.");
163 while (size && (!(irqstat & IRQSTAT_TC))) {
164 udelay(100); /* Wait before last byte transfer complete */
165 irqstat = esdhc_read32(®s->irqstat);
166 databuf = in_le32(®s->datport);
167 *((uint *)buffer) = databuf;
174 blocks = data->blocks;
175 buffer = (char *)data->src;
177 start = get_timer(0);
178 size = data->blocksize;
179 irqstat = esdhc_read32(®s->irqstat);
180 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BWEN)) {
181 if (get_timer(start) > PIO_TIMEOUT) {
182 printf("\nData Write Failed in PIO Mode.");
186 while (size && (!(irqstat & IRQSTAT_TC))) {
187 udelay(100); /* Wait before last byte transfer complete */
188 databuf = *((uint *)buffer);
191 irqstat = esdhc_read32(®s->irqstat);
192 out_le32(®s->datport, databuf);
200 static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc,
201 struct mmc_data *data)
204 struct fsl_esdhc *regs = priv->esdhc_regs;
205 #if defined(CONFIG_FSL_LAYERSCAPE)
210 wml_value = data->blocksize/4;
212 if (data->flags & MMC_DATA_READ) {
213 if (wml_value > WML_RD_WML_MAX)
214 wml_value = WML_RD_WML_MAX_VAL;
216 esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
217 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
218 #if defined(CONFIG_FSL_LAYERSCAPE)
219 addr = virt_to_phys((void *)(data->dest));
220 if (upper_32_bits(addr))
221 printf("Error found for upper 32 bits\n");
223 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
225 esdhc_write32(®s->dsaddr, (u32)data->dest);
229 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
230 flush_dcache_range((ulong)data->src,
231 (ulong)data->src+data->blocks
234 if (wml_value > WML_WR_WML_MAX)
235 wml_value = WML_WR_WML_MAX_VAL;
236 if (priv->wp_enable) {
237 if ((esdhc_read32(®s->prsstat) &
238 PRSSTAT_WPSPL) == 0) {
239 printf("\nThe SD card is locked. Can not write to a locked card.\n\n");
244 esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK,
246 #ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
247 #if defined(CONFIG_FSL_LAYERSCAPE)
248 addr = virt_to_phys((void *)(data->src));
249 if (upper_32_bits(addr))
250 printf("Error found for upper 32 bits\n");
252 esdhc_write32(®s->dsaddr, lower_32_bits(addr));
254 esdhc_write32(®s->dsaddr, (u32)data->src);
259 esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize);
261 /* Calculate the timeout period for data transactions */
263 * 1)Timeout period = (2^(timeout+13)) SD Clock cycles
264 * 2)Timeout period should be minimum 0.250sec as per SD Card spec
265 * So, Number of SD Clock cycles for 0.25sec should be minimum
266 * (SD Clock/sec * 0.25 sec) SD Clock cycles
267 * = (mmc->clock * 1/4) SD Clock cycles
269 * => (2^(timeout+13)) >= mmc->clock * 1/4
270 * Taking log2 both the sides
271 * => timeout + 13 >= log2(mmc->clock/4)
272 * Rounding up to next power of 2
273 * => timeout + 13 = log2(mmc->clock/4) + 1
274 * => timeout + 13 = fls(mmc->clock/4)
276 * However, the MMC spec "It is strongly recommended for hosts to
277 * implement more than 500ms timeout value even if the card
278 * indicates the 250ms maximum busy length." Even the previous
279 * value of 300ms is known to be insufficient for some cards.
281 * => timeout + 13 = fls(mmc->clock/2)
283 timeout = fls(mmc->clock/2);
292 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
293 if ((timeout == 4) || (timeout == 8) || (timeout == 12))
297 #ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE
300 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16);
305 static void check_and_invalidate_dcache_range
306 (struct mmc_cmd *cmd,
307 struct mmc_data *data) {
310 unsigned size = roundup(ARCH_DMA_MINALIGN,
311 data->blocks*data->blocksize);
312 #if defined(CONFIG_FSL_LAYERSCAPE)
315 addr = virt_to_phys((void *)(data->dest));
316 if (upper_32_bits(addr))
317 printf("Error found for upper 32 bits\n");
319 start = lower_32_bits(addr);
321 start = (unsigned)data->dest;
324 invalidate_dcache_range(start, end);
328 * Sends a command out on the bus. Takes the mmc pointer,
329 * a command pointer, and an optional data pointer.
331 static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc,
332 struct mmc_cmd *cmd, struct mmc_data *data)
337 u32 flags = IRQSTAT_CC | IRQSTAT_CTOE;
338 struct fsl_esdhc *regs = priv->esdhc_regs;
341 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
342 if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
346 esdhc_write32(®s->irqstat, -1);
350 /* Wait for the bus to be idle */
351 while ((esdhc_read32(®s->prsstat) & PRSSTAT_CICHB) ||
352 (esdhc_read32(®s->prsstat) & PRSSTAT_CIDHB))
355 while (esdhc_read32(®s->prsstat) & PRSSTAT_DLA)
358 /* Wait at least 8 SD clock cycles before the next command */
360 * Note: This is way more than 8 cycles, but 1ms seems to
361 * resolve timing issues with some cards
365 /* Set up for a data transfer if we have one */
367 err = esdhc_setup_data(priv, mmc, data);
371 if (data->flags & MMC_DATA_READ)
372 check_and_invalidate_dcache_range(cmd, data);
375 /* Figure out the transfer arguments */
376 xfertyp = esdhc_xfertyp(cmd, data);
379 esdhc_write32(®s->irqsigen, 0);
381 /* Send the command */
382 esdhc_write32(®s->cmdarg, cmd->cmdarg);
383 esdhc_write32(®s->xfertyp, xfertyp);
385 /* Wait for the command to complete */
386 start = get_timer(0);
387 while (!(esdhc_read32(®s->irqstat) & flags)) {
388 if (get_timer(start) > 1000) {
394 irqstat = esdhc_read32(®s->irqstat);
396 if (irqstat & CMD_ERR) {
401 if (irqstat & IRQSTAT_CTOE) {
406 /* Workaround for ESDHC errata ENGcm03648 */
407 if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
410 /* Poll on DATA0 line for cmd with busy signal for 600 ms */
411 while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
418 printf("Timeout waiting for DAT0 to go high!\n");
424 /* Copy the response to the response buffer */
425 if (cmd->resp_type & MMC_RSP_136) {
426 u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
428 cmdrsp3 = esdhc_read32(®s->cmdrsp3);
429 cmdrsp2 = esdhc_read32(®s->cmdrsp2);
430 cmdrsp1 = esdhc_read32(®s->cmdrsp1);
431 cmdrsp0 = esdhc_read32(®s->cmdrsp0);
432 cmd->response[0] = (cmdrsp3 << 8) | (cmdrsp2 >> 24);
433 cmd->response[1] = (cmdrsp2 << 8) | (cmdrsp1 >> 24);
434 cmd->response[2] = (cmdrsp1 << 8) | (cmdrsp0 >> 24);
435 cmd->response[3] = (cmdrsp0 << 8);
437 cmd->response[0] = esdhc_read32(®s->cmdrsp0);
439 /* Wait until all of the blocks are transferred */
441 #ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
442 esdhc_pio_read_write(priv, data);
445 irqstat = esdhc_read32(®s->irqstat);
447 if (irqstat & IRQSTAT_DTOE) {
452 if (irqstat & DATA_ERR) {
456 } while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE);
459 * Need invalidate the dcache here again to avoid any
460 * cache-fill during the DMA operations such as the
461 * speculative pre-fetching etc.
463 if (data->flags & MMC_DATA_READ) {
464 check_and_invalidate_dcache_range(cmd, data);
470 /* Reset CMD and DATA portions on error */
472 esdhc_write32(®s->sysctl, esdhc_read32(®s->sysctl) |
474 while (esdhc_read32(®s->sysctl) & SYSCTL_RSTC)
478 esdhc_write32(®s->sysctl,
479 esdhc_read32(®s->sysctl) |
481 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTD))
486 esdhc_write32(®s->irqstat, -1);
491 static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock)
493 struct fsl_esdhc *regs = priv->esdhc_regs;
496 unsigned int sdhc_clk = priv->sdhc_clk;
501 if (clock < mmc->cfg->f_min)
502 clock = mmc->cfg->f_min;
504 while (sdhc_clk / (16 * pre_div) > clock && pre_div < 256)
507 while (sdhc_clk / (div * pre_div) > clock && div < 16)
513 clk = (pre_div << 8) | (div << 4);
515 esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
517 esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
520 value = PRSSTAT_SDSTB;
521 while (!(esdhc_read32(®s->prsstat) & value)) {
523 printf("fsl_esdhc: Internal clock never stabilised.\n");
530 esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
533 #ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
534 static void esdhc_clock_control(struct fsl_esdhc_priv *priv, bool enable)
536 struct fsl_esdhc *regs = priv->esdhc_regs;
540 value = esdhc_read32(®s->sysctl);
543 value |= SYSCTL_CKEN;
545 value &= ~SYSCTL_CKEN;
547 esdhc_write32(®s->sysctl, value);
550 value = PRSSTAT_SDSTB;
551 while (!(esdhc_read32(®s->prsstat) & value)) {
553 printf("fsl_esdhc: Internal clock never stabilised.\n");
562 static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
564 struct fsl_esdhc *regs = priv->esdhc_regs;
566 #ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
567 /* Select to use peripheral clock */
568 esdhc_clock_control(priv, false);
569 esdhc_setbits32(®s->esdhcctl, ESDHCCTL_PCS);
570 esdhc_clock_control(priv, true);
572 /* Set the clock speed */
573 if (priv->clock != mmc->clock)
574 set_sysctl(priv, mmc, mmc->clock);
576 /* Set the bus width */
577 esdhc_clrbits32(®s->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
579 if (mmc->bus_width == 4)
580 esdhc_setbits32(®s->proctl, PROCTL_DTW_4);
581 else if (mmc->bus_width == 8)
582 esdhc_setbits32(®s->proctl, PROCTL_DTW_8);
587 static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc)
589 struct fsl_esdhc *regs = priv->esdhc_regs;
592 /* Reset the entire host controller */
593 esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
595 /* Wait until the controller is available */
596 start = get_timer(0);
597 while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA)) {
598 if (get_timer(start) > 1000)
602 /* Enable cache snooping */
603 esdhc_write32(®s->esdhcctl, 0x00000040);
605 esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
607 /* Set the initial clock speed */
608 mmc_set_clock(mmc, 400000, MMC_CLK_ENABLE);
610 /* Disable the BRR and BWR bits in IRQSTAT */
611 esdhc_clrbits32(®s->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
613 /* Put the PROCTL reg back to the default */
614 esdhc_write32(®s->proctl, PROCTL_INIT);
616 /* Set timout to the maximum value */
617 esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
622 static int esdhc_getcd_common(struct fsl_esdhc_priv *priv)
624 struct fsl_esdhc *regs = priv->esdhc_regs;
627 #ifdef CONFIG_ESDHC_DETECT_QUIRK
628 if (CONFIG_ESDHC_DETECT_QUIRK)
632 #if CONFIG_IS_ENABLED(DM_MMC)
633 if (priv->non_removable)
637 while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout)
643 #if !CONFIG_IS_ENABLED(DM_MMC)
644 static int esdhc_getcd(struct mmc *mmc)
646 struct fsl_esdhc_priv *priv = mmc->priv;
648 return esdhc_getcd_common(priv);
651 static int esdhc_init(struct mmc *mmc)
653 struct fsl_esdhc_priv *priv = mmc->priv;
655 return esdhc_init_common(priv, mmc);
658 static int esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd,
659 struct mmc_data *data)
661 struct fsl_esdhc_priv *priv = mmc->priv;
663 return esdhc_send_cmd_common(priv, mmc, cmd, data);
666 static int esdhc_set_ios(struct mmc *mmc)
668 struct fsl_esdhc_priv *priv = mmc->priv;
670 return esdhc_set_ios_common(priv, mmc);
673 static const struct mmc_ops esdhc_ops = {
674 .getcd = esdhc_getcd,
676 .send_cmd = esdhc_send_cmd,
677 .set_ios = esdhc_set_ios,
681 static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv,
682 struct mmc_config *cfg)
684 struct fsl_esdhc *regs = priv->esdhc_regs;
687 caps = esdhc_read32(®s->hostcapblt);
688 #ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
689 caps &= ~(HOSTCAPBLT_SRS | HOSTCAPBLT_VS18 | HOSTCAPBLT_VS30);
691 #ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
692 caps |= HOSTCAPBLT_VS33;
694 if (caps & HOSTCAPBLT_VS18)
695 cfg->voltages |= MMC_VDD_165_195;
696 if (caps & HOSTCAPBLT_VS30)
697 cfg->voltages |= MMC_VDD_29_30 | MMC_VDD_30_31;
698 if (caps & HOSTCAPBLT_VS33)
699 cfg->voltages |= MMC_VDD_32_33 | MMC_VDD_33_34;
701 cfg->name = "FSL_SDHC";
703 if (caps & HOSTCAPBLT_HSS)
704 cfg->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
707 cfg->f_max = min(priv->sdhc_clk, (u32)200000000);
708 cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
711 #if !CONFIG_IS_ENABLED(DM_MMC)
712 int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
714 struct fsl_esdhc_plat *plat;
715 struct fsl_esdhc_priv *priv;
716 struct mmc_config *mmc_cfg;
722 priv = calloc(sizeof(struct fsl_esdhc_priv), 1);
725 plat = calloc(sizeof(struct fsl_esdhc_plat), 1);
731 priv->esdhc_regs = (struct fsl_esdhc *)(unsigned long)(cfg->esdhc_base);
732 priv->sdhc_clk = cfg->sdhc_clk;
733 priv->wp_enable = cfg->wp_enable;
735 mmc_cfg = &plat->cfg;
737 if (cfg->max_bus_width == 8) {
738 mmc_cfg->host_caps |= MMC_MODE_1BIT | MMC_MODE_4BIT |
740 } else if (cfg->max_bus_width == 4) {
741 mmc_cfg->host_caps |= MMC_MODE_1BIT | MMC_MODE_4BIT;
742 } else if (cfg->max_bus_width == 1) {
743 mmc_cfg->host_caps |= MMC_MODE_1BIT;
745 mmc_cfg->host_caps |= MMC_MODE_1BIT | MMC_MODE_4BIT |
747 printf("No max bus width provided. Assume 8-bit supported.\n");
750 #ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
751 if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
752 mmc_cfg->host_caps &= ~MMC_MODE_8BIT;
754 mmc_cfg->ops = &esdhc_ops;
756 fsl_esdhc_get_cfg_common(priv, mmc_cfg);
758 mmc = mmc_create(mmc_cfg, priv);
766 int fsl_esdhc_mmc_init(bd_t *bis)
768 struct fsl_esdhc_cfg *cfg;
770 cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
771 cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
772 cfg->sdhc_clk = gd->arch.sdhc_clk;
773 return fsl_esdhc_initialize(bis, cfg);
777 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
778 void mmc_adapter_card_type_ident(void)
783 card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
784 gd->arch.sdhc_adapter = card_id;
787 case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
788 value = QIXIS_READ(brdcfg[5]);
789 value |= (QIXIS_DAT4 | QIXIS_DAT5_6_7);
790 QIXIS_WRITE(brdcfg[5], value);
792 case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
793 value = QIXIS_READ(pwr_ctl[1]);
794 value |= QIXIS_EVDD_BY_SDHC_VS;
795 QIXIS_WRITE(pwr_ctl[1], value);
797 case QIXIS_ESDHC_ADAPTER_TYPE_EMMC44:
798 value = QIXIS_READ(brdcfg[5]);
799 value |= (QIXIS_SDCLKIN | QIXIS_SDCLKOUT);
800 QIXIS_WRITE(brdcfg[5], value);
802 case QIXIS_ESDHC_ADAPTER_TYPE_RSV:
804 case QIXIS_ESDHC_ADAPTER_TYPE_MMC:
806 case QIXIS_ESDHC_ADAPTER_TYPE_SD:
808 case QIXIS_ESDHC_NO_ADAPTER:
816 #ifdef CONFIG_OF_LIBFDT
817 __weak int esdhc_status_fixup(void *blob, const char *compat)
819 #ifdef CONFIG_FSL_ESDHC_PIN_MUX
820 if (!hwconfig("esdhc")) {
821 do_fixup_by_compat(blob, compat, "status", "disabled",
822 sizeof("disabled"), 1);
829 void fdt_fixup_esdhc(void *blob, bd_t *bd)
831 const char *compat = "fsl,esdhc";
833 if (esdhc_status_fixup(blob, compat))
836 #ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
837 do_fixup_by_compat_u32(blob, compat, "peripheral-frequency",
838 gd->arch.sdhc_clk, 1);
840 do_fixup_by_compat_u32(blob, compat, "clock-frequency",
841 gd->arch.sdhc_clk, 1);
843 #ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
844 do_fixup_by_compat_u32(blob, compat, "adapter-type",
845 (u32)(gd->arch.sdhc_adapter), 1);
850 #if CONFIG_IS_ENABLED(DM_MMC)
852 #include <asm/arch/clock.h>
854 static int fsl_esdhc_probe(struct udevice *dev)
856 struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev);
857 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
858 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
863 addr = dev_read_addr(dev);
864 if (addr == FDT_ADDR_T_NONE)
867 priv->esdhc_regs = (struct fsl_esdhc *)lower_32_bits(addr);
869 priv->esdhc_regs = (struct fsl_esdhc *)addr;
873 if (dev_read_bool(dev, "non-removable")) {
874 priv->non_removable = 1;
876 priv->non_removable = 0;
881 if (IS_ENABLED(CONFIG_CLK)) {
882 /* Assigned clock already set clock */
883 ret = clk_get_by_name(dev, "per", &priv->per_clk);
885 printf("Failed to get per_clk\n");
888 ret = clk_enable(&priv->per_clk);
890 printf("Failed to enable per_clk\n");
894 priv->sdhc_clk = clk_get_rate(&priv->per_clk);
897 priv->sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK + dev->seq);
899 priv->sdhc_clk = gd->arch.sdhc_clk;
901 if (priv->sdhc_clk <= 0) {
902 dev_err(dev, "Unable to get clk for %s\n", dev->name);
907 fsl_esdhc_get_cfg_common(priv, &plat->cfg);
909 mmc_of_parse(dev, &plat->cfg);
912 mmc->cfg = &plat->cfg;
917 return esdhc_init_common(priv, mmc);
920 static int fsl_esdhc_get_cd(struct udevice *dev)
922 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
924 return esdhc_getcd_common(priv);
927 static int fsl_esdhc_send_cmd(struct udevice *dev, struct mmc_cmd *cmd,
928 struct mmc_data *data)
930 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
931 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
933 return esdhc_send_cmd_common(priv, &plat->mmc, cmd, data);
936 static int fsl_esdhc_set_ios(struct udevice *dev)
938 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
939 struct fsl_esdhc_priv *priv = dev_get_priv(dev);
941 return esdhc_set_ios_common(priv, &plat->mmc);
944 static const struct dm_mmc_ops fsl_esdhc_ops = {
945 .get_cd = fsl_esdhc_get_cd,
946 .send_cmd = fsl_esdhc_send_cmd,
947 .set_ios = fsl_esdhc_set_ios,
948 #ifdef MMC_SUPPORTS_TUNING
949 .execute_tuning = fsl_esdhc_execute_tuning,
953 static const struct udevice_id fsl_esdhc_ids[] = {
954 { .compatible = "fsl,esdhc", },
958 static int fsl_esdhc_bind(struct udevice *dev)
960 struct fsl_esdhc_plat *plat = dev_get_platdata(dev);
962 return mmc_bind(dev, &plat->mmc, &plat->cfg);
965 U_BOOT_DRIVER(fsl_esdhc) = {
966 .name = "fsl-esdhc-mmc",
968 .of_match = fsl_esdhc_ids,
969 .ops = &fsl_esdhc_ops,
970 .bind = fsl_esdhc_bind,
971 .probe = fsl_esdhc_probe,
972 .platdata_auto_alloc_size = sizeof(struct fsl_esdhc_plat),
973 .priv_auto_alloc_size = sizeof(struct fsl_esdhc_priv),