DECLARE_GLOBAL_DATA_PTR;
+#define SDHCI_IRQ_EN_BITS (IRQSTATEN_CC | IRQSTATEN_TC | \
+ IRQSTATEN_CINT | \
+ IRQSTATEN_CTOE | IRQSTATEN_CCE | IRQSTATEN_CEBE | \
+ IRQSTATEN_CIE | IRQSTATEN_DTOE | IRQSTATEN_DCE | \
+ IRQSTATEN_DEBE | IRQSTATEN_BRR | IRQSTATEN_BWR | \
+ IRQSTATEN_DINT)
+
struct fsl_esdhc {
uint dsaddr; /* SDMA system address register */
uint blkattr; /* Block attributes register */
uint fevt; /* Force event register */
uint admaes; /* ADMA error status register */
uint adsaddr; /* ADMA system address register */
- char reserved2[160]; /* reserved */
+ char reserved2[100]; /* reserved */
+ uint vendorspec; /* Vendor Specific register */
+ char reserved3[56]; /* reserved */
uint hostver; /* Host controller version register */
- char reserved3[4]; /* reserved */
- uint dmaerraddr; /* DMA error address register */
char reserved4[4]; /* reserved */
- uint dmaerrattr; /* DMA error attribute register */
+ uint dmaerraddr; /* DMA error address register */
char reserved5[4]; /* reserved */
+ uint dmaerrattr; /* DMA error attribute register */
+ char reserved6[4]; /* reserved */
uint hostcapblt2; /* Host controller capabilities register 2 */
- char reserved6[8]; /* reserved */
+ char reserved7[8]; /* reserved */
uint tcr; /* Tuning control register */
- char reserved7[28]; /* reserved */
+ char reserved8[28]; /* reserved */
uint sddirctl; /* SD direction control register */
- char reserved8[712]; /* reserved */
+ char reserved9[712]; /* reserved */
uint scr; /* eSDHC control register */
};
else if (cmd->resp_type & MMC_RSP_PRESENT)
xfertyp |= XFERTYP_RSPTYP_48;
-#if defined(CONFIG_MX53) || defined(CONFIG_PPC_T4240)
if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
xfertyp |= XFERTYP_CMDTYP_ABORT;
-#endif
+
return XFERTYP_CMD(cmd->cmdidx) | xfertyp;
}
int timeout;
struct fsl_esdhc_cfg *cfg = mmc->priv;
struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
-#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#ifdef CONFIG_FSL_LAYERSCAPE
+ dma_addr_t addr;
+#endif
uint wml_value;
wml_value = data->blocksize/4;
wml_value = WML_RD_WML_MAX_VAL;
esdhc_clrsetbits32(®s->wml, WML_RD_WML_MASK, wml_value);
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#ifdef 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) == 0) {
esdhc_clrsetbits32(®s->wml, WML_WR_WML_MASK,
wml_value << 16);
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+#ifdef 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
}
-#else /* CONFIG_SYS_FSL_ESDHC_USE_PIO */
- if (!(data->flags & MMC_DATA_READ)) {
- if ((esdhc_read32(®s->prsstat) & PRSSTAT_WPSPL) == 0) {
- printf("\nThe SD card is locked. "
- "Can not write to a locked card.\n\n");
- return TIMEOUT;
- }
- esdhc_write32(®s->dsaddr, (u32)data->src);
- } else
- esdhc_write32(®s->dsaddr, (u32)data->dest);
-#endif /* CONFIG_SYS_FSL_ESDHC_USE_PIO */
esdhc_write32(®s->blkattr, data->blocks << 16 | data->blocksize);
* Rounding up to next power of 2
* => timeout + 13 = log2(mmc->clock/4) + 1
* => timeout + 13 = fls(mmc->clock/4)
+ *
+ * However, the MMC spec "It is strongly recommended for hosts to
+ * implement more than 500ms timeout value even if the card
+ * indicates the 250ms maximum busy length." Even the previous
+ * value of 300ms is known to be insufficient for some cards.
+ * So, we use
+ * => timeout + 13 = fls(mmc->clock/2)
*/
- timeout = fls(mmc->clock/4);
+ timeout = fls(mmc->clock/2);
timeout -= 13;
if (timeout > 14)
static void check_and_invalidate_dcache_range
(struct mmc_cmd *cmd,
struct mmc_data *data) {
+#ifdef CONFIG_FSL_LAYERSCAPE
+ unsigned start = 0;
+#else
unsigned start = (unsigned)data->dest ;
+#endif
unsigned size = roundup(ARCH_DMA_MINALIGN,
data->blocks*data->blocksize);
unsigned end = start+size ;
+#ifdef 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);
+#endif
invalidate_dcache_range(start, end);
}
+
/*
* Sends a command out on the bus. Takes the mmc pointer,
* a command pointer, and an optional data pointer.
err = esdhc_setup_data(mmc, data);
if(err)
return err;
+
+ if (data->flags & MMC_DATA_READ)
+ check_and_invalidate_dcache_range(cmd, data);
}
/* Figure out the transfer arguments */
esdhc_write32(®s->cmdarg, cmd->cmdarg);
#if defined(CONFIG_FSL_USDHC)
esdhc_write32(®s->mixctrl,
- (esdhc_read32(®s->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F));
+ (esdhc_read32(®s->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F)
+ | (mmc->ddr_mode ? XFERTYP_DDREN : 0));
esdhc_write32(®s->xfertyp, xfertyp & 0xFFFF0000);
#else
esdhc_write32(®s->xfertyp, xfertyp);
goto out;
}
+ /* Switch voltage to 1.8V if CMD11 succeeded */
+ if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V) {
+ esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+
+ printf("Run CMD11 1.8V switch\n");
+ /* Sleep for 5 ms - max time for card to switch to 1.8V */
+ udelay(5000);
+ }
+
/* Workaround for ESDHC errata ENGcm03648 */
if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
- int timeout = 2500;
+ int timeout = 6000;
- /* Poll on DATA0 line for cmd with busy signal for 250 ms */
+ /* Poll on DATA0 line for cmd with busy signal for 600 ms */
while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
PRSSTAT_DAT0)) {
udelay(100);
goto out;
}
} while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE);
-#endif
+
+ /*
+ * 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);
+#endif
}
out:
while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTD))
;
}
+
+ /* If this was CMD11, then notify that power cycle is needed */
+ if (cmd->cmdidx == SD_CMD_SWITCH_UHS18V)
+ printf("CMD11 to switch to 1.8V mode failed, card requires power cycle.\n");
}
esdhc_write32(®s->irqstat, -1);
if ((sdhc_clk / (div * pre_div)) <= clock)
break;
- pre_div >>= 1;
+ pre_div >>= mmc->ddr_mode ? 2 : 1;
div -= 1;
clk = (pre_div << 8) | (div << 4);
+#ifdef CONFIG_FSL_USDHC
+ esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
+#else
esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
+#endif
esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
udelay(10000);
- clk = SYSCTL_PEREN | SYSCTL_CKEN;
+#ifdef CONFIG_FSL_USDHC
+ esdhc_clrbits32(®s->sysctl, SYSCTL_RSTA);
+#else
+ esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_CKEN);
+#endif
- esdhc_setbits32(®s->sysctl, clk);
}
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+static void esdhc_clock_control(struct mmc *mmc, bool enable)
+{
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ u32 value;
+ u32 time_out;
+
+ value = esdhc_read32(®s->sysctl);
+
+ if (enable)
+ value |= SYSCTL_CKEN;
+ else
+ value &= ~SYSCTL_CKEN;
+
+ esdhc_write32(®s->sysctl, value);
+
+ time_out = 20;
+ value = PRSSTAT_SDSTB;
+ while (!(esdhc_read32(®s->prsstat) & value)) {
+ if (time_out == 0) {
+ printf("fsl_esdhc: Internal clock never stabilised.\n");
+ break;
+ }
+ time_out--;
+ mdelay(1);
+ }
+}
+#endif
+
static void esdhc_set_ios(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = mmc->priv;
struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+ /* Select to use peripheral clock */
+ esdhc_clock_control(mmc, false);
+ esdhc_setbits32(®s->scr, ESDHCCTL_PCS);
+ esdhc_clock_control(mmc, true);
+#endif
/* Set the clock speed */
set_sysctl(mmc, mmc->clock);
esdhc_write32(®s->scr, 0x00000040);
#endif
+#ifndef CONFIG_FSL_USDHC
esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
+#endif
/* Set the initial clock speed */
mmc_set_clock(mmc, 400000);
/* Set timout to the maximum value */
esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
+#ifdef CONFIG_SYS_FSL_ESDHC_FORCE_VSELECT
+ esdhc_setbits32(®s->vendorspec, ESDHC_VENDORSPEC_VSELECT);
+#endif
+
return 0;
}
/* First reset the eSDHC controller */
esdhc_reset(regs);
+#ifndef CONFIG_FSL_USDHC
esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
| SYSCTL_IPGEN | SYSCTL_CKEN);
+#endif
+ writel(SDHCI_IRQ_EN_BITS, ®s->irqstaten);
memset(&cfg->cfg, 0, sizeof(cfg->cfg));
voltage_caps = 0;
- caps = regs->hostcapblt;
+ caps = esdhc_read32(®s->hostcapblt);
#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
return -1;
}
- cfg->cfg.host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HC;
+ cfg->cfg.host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+#ifdef CONFIG_SYS_FSL_ESDHC_HAS_DDR_MODE
+ cfg->cfg.host_caps |= MMC_MODE_DDR_52MHz;
+#endif
if (cfg->max_bus_width > 0) {
if (cfg->max_bus_width < 8)
#endif
cfg->cfg.f_min = 400000;
- cfg->cfg.f_max = MIN(gd->arch.sdhc_clk, 52000000);
+ cfg->cfg.f_max = min(cfg->sdhc_clk, (u32)52000000);
cfg->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
return fsl_esdhc_initialize(bis, cfg);
}
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+void mmc_adapter_card_type_ident(void)
+{
+ u8 card_id;
+ u8 value;
+
+ card_id = QIXIS_READ(present) & QIXIS_SDID_MASK;
+ gd->arch.sdhc_adapter = card_id;
+
+ switch (card_id) {
+ case QIXIS_ESDHC_ADAPTER_TYPE_EMMC45:
+ value = QIXIS_READ(brdcfg[5]);
+ value |= (QIXIS_DAT4 | QIXIS_DAT5_6_7);
+ QIXIS_WRITE(brdcfg[5], value);
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_SDMMC_LEGACY:
+ value = QIXIS_READ(pwr_ctl[1]);
+ value |= QIXIS_EVDD_BY_SDHC_VS;
+ QIXIS_WRITE(pwr_ctl[1], value);
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_EMMC44:
+ value = QIXIS_READ(brdcfg[5]);
+ value |= (QIXIS_SDCLKIN | QIXIS_SDCLKOUT);
+ QIXIS_WRITE(brdcfg[5], value);
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_RSV:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_MMC:
+ break;
+ case QIXIS_ESDHC_ADAPTER_TYPE_SD:
+ break;
+ case QIXIS_ESDHC_NO_ADAPTER:
+ break;
+ default:
+ break;
+ }
+}
+#endif
+
#ifdef CONFIG_OF_LIBFDT
void fdt_fixup_esdhc(void *blob, bd_t *bd)
{
}
#endif
+#ifdef CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK
+ do_fixup_by_compat_u32(blob, compat, "peripheral-frequency",
+ gd->arch.sdhc_clk, 1);
+#else
do_fixup_by_compat_u32(blob, compat, "clock-frequency",
gd->arch.sdhc_clk, 1);
-
+#endif
+#ifdef CONFIG_FSL_ESDHC_ADAPTER_IDENT
+ do_fixup_by_compat_u32(blob, compat, "adapter-type",
+ (u32)(gd->arch.sdhc_adapter), 1);
+#endif
do_fixup_by_compat(blob, compat, "status", "okay",
4 + 1, 1);
}
projects / oweals / u-boot.git / blobdiff