diff options
Diffstat (limited to 'drivers/mmc/fsl_esdhc.c')
-rw-r--r-- | drivers/mmc/fsl_esdhc.c | 439 |
1 files changed, 309 insertions, 130 deletions
diff --git a/drivers/mmc/fsl_esdhc.c b/drivers/mmc/fsl_esdhc.c index de9fe01bc5..642784e1f3 100644 --- a/drivers/mmc/fsl_esdhc.c +++ b/drivers/mmc/fsl_esdhc.c @@ -26,6 +26,8 @@ #include <dm/device_compat.h> #include <linux/bitops.h> #include <linux/delay.h> +#include <linux/dma-mapping.h> +#include <sdhci.h> DECLARE_GLOBAL_DATA_PTR; @@ -51,8 +53,9 @@ struct fsl_esdhc { char reserved1[8]; /* reserved */ uint fevt; /* Force event register */ uint admaes; /* ADMA error status register */ - uint adsaddr; /* ADMA system address register */ - char reserved2[160]; + uint adsaddrl; /* ADMA system address low register */ + uint adsaddrh; /* ADMA system address high register */ + char reserved2[156]; uint hostver; /* Host controller version register */ char reserved3[4]; /* reserved */ uint dmaerraddr; /* DMA error address register */ @@ -60,7 +63,14 @@ struct fsl_esdhc { uint dmaerrattr; /* DMA error attribute register */ char reserved5[4]; /* reserved */ uint hostcapblt2; /* Host controller capabilities register 2 */ - char reserved6[756]; /* reserved */ + char reserved6[8]; /* reserved */ + uint tbctl; /* Tuning block control register */ + char reserved7[32]; /* reserved */ + uint sdclkctl; /* SD clock control register */ + uint sdtimingctl; /* SD timing control register */ + char reserved8[20]; /* reserved */ + uint dllcfg0; /* DLL config 0 register */ + char reserved9[680]; /* reserved */ uint esdhcctl; /* eSDHC control register */ }; @@ -91,6 +101,8 @@ struct fsl_esdhc_priv { struct mmc *mmc; #endif struct udevice *dev; + struct sdhci_adma_desc *adma_desc_table; + dma_addr_t dma_addr; }; /* Return the XFERTYP flags for a given command and data packet */ @@ -100,15 +112,15 @@ static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data) if (data) { xfertyp |= XFERTYP_DPSEL; -#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO - xfertyp |= XFERTYP_DMAEN; -#endif + if (!IS_ENABLED(CONFIG_SYS_FSL_ESDHC_USE_PIO) && + cmd->cmdidx != MMC_CMD_SEND_TUNING_BLOCK && + cmd->cmdidx != MMC_CMD_SEND_TUNING_BLOCK_HS200) + xfertyp |= XFERTYP_DMAEN; if (data->blocks > 1) { xfertyp |= XFERTYP_MSBSEL; xfertyp |= XFERTYP_BCEN; -#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111 - xfertyp |= XFERTYP_AC12EN; -#endif + if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_ESDHC111)) + xfertyp |= XFERTYP_AC12EN; } if (data->flags & MMC_DATA_READ) @@ -132,7 +144,6 @@ static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data) return XFERTYP_CMD(cmd->cmdidx) | xfertyp; } -#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO /* * PIO Read/Write Mode reduce the performace as DMA is not used in this mode. */ @@ -195,66 +206,83 @@ static void esdhc_pio_read_write(struct fsl_esdhc_priv *priv, } } } -#endif -static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc, - struct mmc_data *data) +static void esdhc_setup_watermark_level(struct fsl_esdhc_priv *priv, + struct mmc_data *data) { - int timeout; struct fsl_esdhc *regs = priv->esdhc_regs; -#if defined(CONFIG_FSL_LAYERSCAPE) - dma_addr_t addr; -#endif - uint wml_value; - - wml_value = data->blocksize/4; + uint wml_value = data->blocksize / 4; if (data->flags & MMC_DATA_READ) { if (wml_value > WML_RD_WML_MAX) wml_value = WML_RD_WML_MAX_VAL; esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value); -#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO -#if defined(CONFIG_FSL_LAYERSCAPE) - addr = virt_to_phys((void *)(data->dest)); - if (upper_32_bits(addr)) - printf("Error found for upper 32 bits\n"); - else - esdhc_write32(®s->dsaddr, lower_32_bits(addr)); -#else - esdhc_write32(®s->dsaddr, (u32)data->dest); -#endif -#endif } else { -#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO - flush_dcache_range((ulong)data->src, - (ulong)data->src+data->blocks - *data->blocksize); -#endif if (wml_value > WML_WR_WML_MAX) wml_value = WML_WR_WML_MAX_VAL; - if (!(esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL)) { - printf("Can not write to locked SD card.\n"); - return -EINVAL; - } - esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK, - wml_value << 16); -#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO -#if defined(CONFIG_FSL_LAYERSCAPE) - addr = virt_to_phys((void *)(data->src)); - if (upper_32_bits(addr)) - printf("Error found for upper 32 bits\n"); - else - esdhc_write32(®s->dsaddr, lower_32_bits(addr)); -#else - esdhc_write32(®s->dsaddr, (u32)data->src); -#endif -#endif + wml_value << 16); + } +} + +static void esdhc_setup_dma(struct fsl_esdhc_priv *priv, struct mmc_data *data) +{ + uint trans_bytes = data->blocksize * data->blocks; + struct fsl_esdhc *regs = priv->esdhc_regs; + phys_addr_t adma_addr; + void *buf; + + if (data->flags & MMC_DATA_WRITE) + buf = (void *)data->src; + else + buf = data->dest; + + priv->dma_addr = dma_map_single(buf, trans_bytes, + mmc_get_dma_dir(data)); + + if (IS_ENABLED(CONFIG_FSL_ESDHC_SUPPORT_ADMA2) && + priv->adma_desc_table) { + debug("Using ADMA2\n"); + /* prefer ADMA2 if it is available */ + sdhci_prepare_adma_table(priv->adma_desc_table, data, + priv->dma_addr); + + adma_addr = virt_to_phys(priv->adma_desc_table); + esdhc_write32(®s->adsaddrl, lower_32_bits(adma_addr)); + if (IS_ENABLED(CONFIG_DMA_ADDR_T_64BIT)) + esdhc_write32(®s->adsaddrh, upper_32_bits(adma_addr)); + esdhc_clrsetbits32(®s->proctl, PROCTL_DMAS_MASK, + PROCTL_DMAS_ADMA2); + } else { + debug("Using SDMA\n"); + if (upper_32_bits(priv->dma_addr)) + printf("Cannot use 64 bit addresses with SDMA\n"); + esdhc_write32(®s->dsaddr, lower_32_bits(priv->dma_addr)); + esdhc_clrsetbits32(®s->proctl, PROCTL_DMAS_MASK, + PROCTL_DMAS_SDMA); } esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize); +} + +static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc, + struct mmc_data *data) +{ + int timeout; + bool is_write = data->flags & MMC_DATA_WRITE; + struct fsl_esdhc *regs = priv->esdhc_regs; + + if (is_write && !(esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL)) { + printf("Can not write to locked SD card.\n"); + return -EINVAL; + } + + if (IS_ENABLED(CONFIG_SYS_FSL_ESDHC_USE_PIO)) + esdhc_setup_watermark_level(priv, data); + else + esdhc_setup_dma(priv, data); /* Calculate the timeout period for data transactions */ /* @@ -287,41 +315,18 @@ static int esdhc_setup_data(struct fsl_esdhc_priv *priv, struct mmc *mmc, if (timeout < 0) timeout = 0; -#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001 - if ((timeout == 4) || (timeout == 8) || (timeout == 12)) + if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_ESDHC_A001) && + (timeout == 4 || timeout == 8 || timeout == 12)) timeout++; -#endif -#ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE - timeout = 0xE; -#endif + if (IS_ENABLED(ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE)) + timeout = 0xE; + esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, timeout << 16); return 0; } -static void check_and_invalidate_dcache_range - (struct mmc_cmd *cmd, - struct mmc_data *data) { - unsigned start = 0; - unsigned end = 0; - unsigned size = roundup(ARCH_DMA_MINALIGN, - data->blocks*data->blocksize); -#if defined(CONFIG_FSL_LAYERSCAPE) - dma_addr_t addr; - - addr = virt_to_phys((void *)(data->dest)); - if (upper_32_bits(addr)) - printf("Error found for upper 32 bits\n"); - else - start = lower_32_bits(addr); -#else - start = (unsigned)data->dest; -#endif - end = start + size; - invalidate_dcache_range(start, end); -} - /* * Sends a command out on the bus. Takes the mmc pointer, * a command pointer, and an optional data pointer. @@ -336,10 +341,9 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc, struct fsl_esdhc *regs = priv->esdhc_regs; unsigned long start; -#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111 - if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) + if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_ESDHC111) && + cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION) return 0; -#endif esdhc_write32(®s->irqstat, -1); @@ -365,9 +369,6 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc, err = esdhc_setup_data(priv, mmc, data); if(err) return err; - - if (data->flags & MMC_DATA_READ) - check_and_invalidate_dcache_range(cmd, data); } /* Figure out the transfer arguments */ @@ -380,6 +381,10 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc, esdhc_write32(®s->cmdarg, cmd->cmdarg); esdhc_write32(®s->xfertyp, xfertyp); + if (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK || + cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) + flags = IRQSTAT_BRR; + /* Wait for the command to complete */ start = get_timer(0); while (!(esdhc_read32(®s->irqstat) & flags)) { @@ -436,32 +441,37 @@ static int esdhc_send_cmd_common(struct fsl_esdhc_priv *priv, struct mmc *mmc, /* Wait until all of the blocks are transferred */ if (data) { -#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO - esdhc_pio_read_write(priv, data); -#else - do { - irqstat = esdhc_read32(®s->irqstat); - - if (irqstat & IRQSTAT_DTOE) { - err = -ETIMEDOUT; - goto out; - } + if (IS_ENABLED(CONFIG_SYS_FSL_ESDHC_USE_PIO)) { + esdhc_pio_read_write(priv, data); + } else { + flags = DATA_COMPLETE; + if (cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK || + cmd->cmdidx == MMC_CMD_SEND_TUNING_BLOCK_HS200) + flags = IRQSTAT_BRR; + + do { + irqstat = esdhc_read32(®s->irqstat); - if (irqstat & DATA_ERR) { - err = -ECOMM; - goto out; - } - } while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE); + if (irqstat & IRQSTAT_DTOE) { + err = -ETIMEDOUT; + goto out; + } - /* - * Need invalidate the dcache here again to avoid any - * cache-fill during the DMA operations such as the - * speculative pre-fetching etc. - */ - if (data->flags & MMC_DATA_READ) { - check_and_invalidate_dcache_range(cmd, data); + if (irqstat & DATA_ERR) { + err = -ECOMM; + goto out; + } + } while ((irqstat & flags) != flags); + + /* + * Need invalidate the dcache here again to avoid any + * cache-fill during the DMA operations such as the + * speculative pre-fetching etc. + */ + dma_unmap_single(priv->dma_addr, + data->blocks * data->blocksize, + mmc_get_dma_dir(data)); } -#endif } out: @@ -505,6 +515,9 @@ static void set_sysctl(struct fsl_esdhc_priv *priv, struct mmc *mmc, uint clock) while (sdhc_clk / (div * pre_div) > clock && div < 16) div++; + mmc->clock = sdhc_clk / pre_div / div; + priv->clock = mmc->clock; + pre_div >>= 1; div -= 1; @@ -555,6 +568,86 @@ static void esdhc_clock_control(struct fsl_esdhc_priv *priv, bool enable) } } +static void esdhc_flush_async_fifo(struct fsl_esdhc_priv *priv) +{ + struct fsl_esdhc *regs = priv->esdhc_regs; + u32 time_out; + + esdhc_setbits32(®s->esdhcctl, ESDHCCTL_FAF); + + time_out = 20; + while (esdhc_read32(®s->esdhcctl) & ESDHCCTL_FAF) { + if (time_out == 0) { + printf("fsl_esdhc: Flush asynchronous FIFO timeout.\n"); + break; + } + time_out--; + mdelay(1); + } +} + +static void esdhc_tuning_block_enable(struct fsl_esdhc_priv *priv, + bool en) +{ + struct fsl_esdhc *regs = priv->esdhc_regs; + + esdhc_clock_control(priv, false); + esdhc_flush_async_fifo(priv); + if (en) + esdhc_setbits32(®s->tbctl, TBCTL_TB_EN); + else + esdhc_clrbits32(®s->tbctl, TBCTL_TB_EN); + esdhc_clock_control(priv, true); +} + +static void esdhc_exit_hs400(struct fsl_esdhc_priv *priv) +{ + struct fsl_esdhc *regs = priv->esdhc_regs; + + esdhc_clrbits32(®s->sdtimingctl, FLW_CTL_BG); + esdhc_clrbits32(®s->sdclkctl, CMD_CLK_CTL); + + esdhc_clock_control(priv, false); + esdhc_clrbits32(®s->tbctl, HS400_MODE); + esdhc_clock_control(priv, true); + + esdhc_clrbits32(®s->dllcfg0, DLL_FREQ_SEL | DLL_ENABLE); + esdhc_clrbits32(®s->tbctl, HS400_WNDW_ADJUST); + + esdhc_tuning_block_enable(priv, false); +} + +static void esdhc_set_timing(struct fsl_esdhc_priv *priv, enum bus_mode mode) +{ + struct fsl_esdhc *regs = priv->esdhc_regs; + + /* Exit HS400 mode before setting any other mode */ + if (esdhc_read32(®s->tbctl) & HS400_MODE && + mode != MMC_HS_400) + esdhc_exit_hs400(priv); + + esdhc_clock_control(priv, false); + + if (mode == MMC_HS_200) + esdhc_clrsetbits32(®s->autoc12err, UHSM_MASK, + UHSM_SDR104_HS200); + if (mode == MMC_HS_400) { + esdhc_setbits32(®s->tbctl, HS400_MODE); + esdhc_setbits32(®s->sdclkctl, CMD_CLK_CTL); + esdhc_clock_control(priv, true); + + if (priv->clock == 200000000) + esdhc_setbits32(®s->dllcfg0, DLL_FREQ_SEL); + + esdhc_setbits32(®s->dllcfg0, DLL_ENABLE); + esdhc_setbits32(®s->tbctl, HS400_WNDW_ADJUST); + + esdhc_clock_control(priv, false); + esdhc_flush_async_fifo(priv); + } + esdhc_clock_control(priv, true); +} + static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc) { struct fsl_esdhc *regs = priv->esdhc_regs; @@ -566,10 +659,16 @@ static int esdhc_set_ios_common(struct fsl_esdhc_priv *priv, struct mmc *mmc) esdhc_clock_control(priv, true); } + if (mmc->selected_mode == MMC_HS_400) + esdhc_tuning_block_enable(priv, true); + /* Set the clock speed */ if (priv->clock != mmc->clock) set_sysctl(priv, mmc, mmc->clock); + /* Set timing */ + esdhc_set_timing(priv, mmc->selected_mode); + /* Set the bus width */ esdhc_clrbits32(®s->proctl, PROCTL_DTW_4 | PROCTL_DTW_8); @@ -608,6 +707,9 @@ static int esdhc_init_common(struct fsl_esdhc_priv *priv, struct mmc *mmc) return -ETIMEDOUT; } + /* Clean TBCTL[TB_EN] which is not able to be reset by reset all */ + esdhc_clrbits32(®s->tbctl, TBCTL_TB_EN); + esdhc_enable_cache_snooping(regs); esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN); @@ -648,12 +750,10 @@ static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv, u32 caps; caps = esdhc_read32(®s->hostcapblt); -#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135 - caps &= ~(HOSTCAPBLT_SRS | HOSTCAPBLT_VS18 | HOSTCAPBLT_VS30); -#endif -#ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33 - caps |= HOSTCAPBLT_VS33; -#endif + if (IS_ENABLED(CONFIG_SYS_FSL_ERRATUM_ESDHC135)) + caps &= ~(HOSTCAPBLT_SRS | HOSTCAPBLT_VS18 | HOSTCAPBLT_VS30); + if (IS_ENABLED(CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33)) + caps |= HOSTCAPBLT_VS33; if (caps & HOSTCAPBLT_VS18) cfg->voltages |= MMC_VDD_165_195; if (caps & HOSTCAPBLT_VS30) @@ -674,19 +774,18 @@ static void fsl_esdhc_get_cfg_common(struct fsl_esdhc_priv *priv, #ifdef CONFIG_OF_LIBFDT __weak int esdhc_status_fixup(void *blob, const char *compat) { -#ifdef CONFIG_FSL_ESDHC_PIN_MUX - if (!hwconfig("esdhc")) { + if (IS_ENABLED(CONFIG_FSL_ESDHC_PIN_MUX) && !hwconfig("esdhc")) { do_fixup_by_compat(blob, compat, "status", "disabled", sizeof("disabled"), 1); return 1; } -#endif + return 0; } -#ifdef CONFIG_FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND -static int fsl_esdhc_get_cd(struct udevice *dev); +#if CONFIG_IS_ENABLED(DM_MMC) +static int fsl_esdhc_get_cd(struct udevice *dev); static void esdhc_disable_for_no_card(void *blob) { struct udevice *dev; @@ -705,6 +804,10 @@ static void esdhc_disable_for_no_card(void *blob) sizeof("disabled"), 1); } } +#else +static void esdhc_disable_for_no_card(void *blob) +{ +} #endif void fdt_fixup_esdhc(void *blob, struct bd_info *bd) @@ -713,9 +816,10 @@ void fdt_fixup_esdhc(void *blob, struct bd_info *bd) if (esdhc_status_fixup(blob, compat)) return; -#ifdef CONFIG_FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND - esdhc_disable_for_no_card(blob); -#endif + + if (IS_ENABLED(CONFIG_FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND)) + esdhc_disable_for_no_card(blob); + do_fixup_by_compat_u32(blob, compat, "clock-frequency", gd->arch.sdhc_clk, 1); } @@ -797,10 +901,9 @@ int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg) printf("No max bus width provided. Assume 8-bit supported.\n"); } -#ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK - if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK) + if (IS_ENABLED(CONFIG_ESDHC_DETECT_8_BIT_QUIRK)) mmc_cfg->host_caps &= ~MMC_MODE_8BIT; -#endif + mmc_cfg->ops = &esdhc_ops; fsl_esdhc_get_cfg_common(priv, mmc_cfg); @@ -832,6 +935,7 @@ static int fsl_esdhc_probe(struct udevice *dev) struct mmc_uclass_priv *upriv = dev_get_uclass_priv(dev); struct fsl_esdhc_plat *plat = dev_get_platdata(dev); struct fsl_esdhc_priv *priv = dev_get_priv(dev); + u32 caps, hostver; fdt_addr_t addr; struct mmc *mmc; int ret; @@ -846,6 +950,21 @@ static int fsl_esdhc_probe(struct udevice *dev) #endif priv->dev = dev; + if (IS_ENABLED(CONFIG_FSL_ESDHC_SUPPORT_ADMA2)) { + /* + * Only newer eSDHC controllers can do ADMA2 if the ADMA flag + * is set in the host capabilities register. + */ + caps = esdhc_read32(&priv->esdhc_regs->hostcapblt); + hostver = esdhc_read32(&priv->esdhc_regs->hostver); + if (caps & HOSTCAPBLT_DMAS && + HOSTVER_VENDOR(hostver) > VENDOR_V_22) { + priv->adma_desc_table = sdhci_adma_init(); + if (!priv->adma_desc_table) + debug("Could not allocate ADMA tables, falling back to SDMA\n"); + } + } + if (gd->arch.sdhc_per_clk) { priv->sdhc_clk = gd->arch.sdhc_per_clk; priv->is_sdhc_per_clk = true; @@ -872,10 +991,10 @@ static int fsl_esdhc_probe(struct udevice *dev) if (ret) return ret; -#ifdef CONFIG_FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND - if (!fsl_esdhc_get_cd(dev)) + if (IS_ENABLED(CONFIG_FSL_ESDHC_33V_IO_RELIABILITY_WORKAROUND) && + !fsl_esdhc_get_cd(dev)) esdhc_setbits32(&priv->esdhc_regs->proctl, PROCTL_VOLT_SEL); -#endif + return 0; } @@ -907,6 +1026,64 @@ static int fsl_esdhc_set_ios(struct udevice *dev) return esdhc_set_ios_common(priv, &plat->mmc); } +static int fsl_esdhc_reinit(struct udevice *dev) +{ + struct fsl_esdhc_plat *plat = dev_get_platdata(dev); + struct fsl_esdhc_priv *priv = dev_get_priv(dev); + + return esdhc_init_common(priv, &plat->mmc); +} + +#ifdef MMC_SUPPORTS_TUNING +static int fsl_esdhc_execute_tuning(struct udevice *dev, uint32_t opcode) +{ + struct fsl_esdhc_plat *plat = dev_get_platdata(dev); + struct fsl_esdhc_priv *priv = dev_get_priv(dev); + struct fsl_esdhc *regs = priv->esdhc_regs; + u32 val, irqstaten; + int i; + + esdhc_tuning_block_enable(priv, true); + esdhc_setbits32(®s->autoc12err, EXECUTE_TUNING); + + irqstaten = esdhc_read32(®s->irqstaten); + esdhc_write32(®s->irqstaten, IRQSTATEN_BRR); + + for (i = 0; i < MAX_TUNING_LOOP; i++) { + mmc_send_tuning(&plat->mmc, opcode, NULL); + mdelay(1); + + val = esdhc_read32(®s->autoc12err); + if (!(val & EXECUTE_TUNING)) { + if (val & SMPCLKSEL) + break; + } + } + + esdhc_write32(®s->irqstaten, irqstaten); + + if (i != MAX_TUNING_LOOP) { + if (plat->mmc.hs400_tuning) + esdhc_setbits32(®s->sdtimingctl, FLW_CTL_BG); + return 0; + } + + printf("fsl_esdhc: tuning failed!\n"); + esdhc_clrbits32(®s->autoc12err, SMPCLKSEL); + esdhc_clrbits32(®s->autoc12err, EXECUTE_TUNING); + esdhc_tuning_block_enable(priv, false); + return -ETIMEDOUT; +} +#endif + +int fsl_esdhc_hs400_prepare_ddr(struct udevice *dev) +{ + struct fsl_esdhc_priv *priv = dev_get_priv(dev); + + esdhc_tuning_block_enable(priv, false); + return 0; +} + static const struct dm_mmc_ops fsl_esdhc_ops = { .get_cd = fsl_esdhc_get_cd, .send_cmd = fsl_esdhc_send_cmd, @@ -914,6 +1091,8 @@ static const struct dm_mmc_ops fsl_esdhc_ops = { #ifdef MMC_SUPPORTS_TUNING .execute_tuning = fsl_esdhc_execute_tuning, #endif + .reinit = fsl_esdhc_reinit, + .hs400_prepare_ddr = fsl_esdhc_hs400_prepare_ddr, }; static const struct udevice_id fsl_esdhc_ids[] = { |