--- /dev/null
+/*
+ * Copyright 2007, 2010-2011 Freescale Semiconductor, Inc
+ * Andy Fleming
+ *
+ * Based vaguely on the pxa mmc code:
+ * (C) Copyright 2003
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <common.h>
+#include <command.h>
+#include <hwconfig.h>
+#include <mmc.h>
+#include <part.h>
+#include <malloc.h>
+#include <mmc.h>
+#include <fsl_esdhc.h>
+#include <fdt_support.h>
+#include <asm/io.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct fsl_esdhc {
+ uint dsaddr; /* SDMA system address register */
+ uint blkattr; /* Block attributes register */
+ uint cmdarg; /* Command argument register */
+ uint xfertyp; /* Transfer type register */
+ uint cmdrsp0; /* Command response 0 register */
+ uint cmdrsp1; /* Command response 1 register */
+ uint cmdrsp2; /* Command response 2 register */
+ uint cmdrsp3; /* Command response 3 register */
+ uint datport; /* Buffer data port register */
+ uint prsstat; /* Present state register */
+ uint proctl; /* Protocol control register */
+ uint sysctl; /* System Control Register */
+ uint irqstat; /* Interrupt status register */
+ uint irqstaten; /* Interrupt status enable register */
+ uint irqsigen; /* Interrupt signal enable register */
+ uint autoc12err; /* Auto CMD error status register */
+ uint hostcapblt; /* Host controller capabilities register */
+ uint wml; /* Watermark level register */
+ uint mixctrl; /* For USDHC */
+ char reserved1[4]; /* reserved */
+ uint fevt; /* Force event register */
+ uint admaes; /* ADMA error status register */
+ uint adsaddr; /* ADMA system address register */
+ char reserved2[160]; /* 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 */
+ char reserved5[4]; /* reserved */
+ uint hostcapblt2; /* Host controller capabilities register 2 */
+ char reserved6[8]; /* reserved */
+ uint tcr; /* Tuning control register */
+ char reserved7[28]; /* reserved */
+ uint sddirctl; /* SD direction control register */
+ char reserved8[712]; /* reserved */
+ uint scr; /* eSDHC control register */
+};
+
+/* Return the XFERTYP flags for a given command and data packet */
+static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
+{
+ uint xfertyp = 0;
+
+ if (data) {
+ xfertyp |= XFERTYP_DPSEL;
+#ifndef CONFIG_SYS_FSL_ESDHC_USE_PIO
+ xfertyp |= XFERTYP_DMAEN;
+#endif
+ if (data->blocks > 1) {
+ xfertyp |= XFERTYP_MSBSEL;
+ xfertyp |= XFERTYP_BCEN;
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
+ xfertyp |= XFERTYP_AC12EN;
+#endif
+ }
+
+ if (data->flags & MMC_DATA_READ)
+ xfertyp |= XFERTYP_DTDSEL;
+ }
+
+ if (cmd->resp_type & MMC_RSP_CRC)
+ xfertyp |= XFERTYP_CCCEN;
+ if (cmd->resp_type & MMC_RSP_OPCODE)
+ xfertyp |= XFERTYP_CICEN;
+ if (cmd->resp_type & MMC_RSP_136)
+ xfertyp |= XFERTYP_RSPTYP_136;
+ else if (cmd->resp_type & MMC_RSP_BUSY)
+ xfertyp |= XFERTYP_RSPTYP_48_BUSY;
+ 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;
+}
+
+#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
+/*
+ * PIO Read/Write Mode reduce the performace as DMA is not used in this mode.
+ */
+static void
+esdhc_pio_read_write(struct mmc *mmc, struct mmc_data *data)
+{
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ uint blocks;
+ char *buffer;
+ uint databuf;
+ uint size;
+ uint irqstat;
+ uint timeout;
+
+ if (data->flags & MMC_DATA_READ) {
+ blocks = data->blocks;
+ buffer = data->dest;
+ while (blocks) {
+ timeout = PIO_TIMEOUT;
+ size = data->blocksize;
+ irqstat = esdhc_read32(®s->irqstat);
+ while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BREN)
+ && --timeout);
+ if (timeout <= 0) {
+ printf("\nData Read Failed in PIO Mode.");
+ return;
+ }
+ while (size && (!(irqstat & IRQSTAT_TC))) {
+ udelay(100); /* Wait before last byte transfer complete */
+ irqstat = esdhc_read32(®s->irqstat);
+ databuf = in_le32(®s->datport);
+ *((uint *)buffer) = databuf;
+ buffer += 4;
+ size -= 4;
+ }
+ blocks--;
+ }
+ } else {
+ blocks = data->blocks;
+ buffer = (char *)data->src;
+ while (blocks) {
+ timeout = PIO_TIMEOUT;
+ size = data->blocksize;
+ irqstat = esdhc_read32(®s->irqstat);
+ while (!(esdhc_read32(®s->prsstat) & PRSSTAT_BWEN)
+ && --timeout);
+ if (timeout <= 0) {
+ printf("\nData Write Failed in PIO Mode.");
+ return;
+ }
+ while (size && (!(irqstat & IRQSTAT_TC))) {
+ udelay(100); /* Wait before last byte transfer complete */
+ databuf = *((uint *)buffer);
+ buffer += 4;
+ size -= 4;
+ irqstat = esdhc_read32(®s->irqstat);
+ out_le32(®s->datport, databuf);
+ }
+ blocks--;
+ }
+ }
+}
+#endif
+
+static int esdhc_setup_data(struct mmc *mmc, struct mmc_data *data)
+{
+ 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
+ uint wml_value;
+
+ 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);
+ esdhc_write32(®s->dsaddr, (u32)data->dest);
+ } else {
+ flush_dcache_range((ulong)data->src,
+ (ulong)data->src+data->blocks
+ *data->blocksize);
+
+ if (wml_value > WML_WR_WML_MAX)
+ wml_value = WML_WR_WML_MAX_VAL;
+ 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_clrsetbits32(®s->wml, WML_WR_WML_MASK,
+ wml_value << 16);
+ esdhc_write32(®s->dsaddr, (u32)data->src);
+ }
+#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);
+
+ /* Calculate the timeout period for data transactions */
+ /*
+ * 1)Timeout period = (2^(timeout+13)) SD Clock cycles
+ * 2)Timeout period should be minimum 0.250sec as per SD Card spec
+ * So, Number of SD Clock cycles for 0.25sec should be minimum
+ * (SD Clock/sec * 0.25 sec) SD Clock cycles
+ * = (mmc->clock * 1/4) SD Clock cycles
+ * As 1) >= 2)
+ * => (2^(timeout+13)) >= mmc->clock * 1/4
+ * Taking log2 both the sides
+ * => timeout + 13 >= log2(mmc->clock/4)
+ * Rounding up to next power of 2
+ * => timeout + 13 = log2(mmc->clock/4) + 1
+ * => timeout + 13 = fls(mmc->clock/4)
+ */
+ timeout = fls(mmc->clock/4);
+ timeout -= 13;
+
+ if (timeout > 14)
+ timeout = 14;
+
+ if (timeout < 0)
+ timeout = 0;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC_A001
+ if ((timeout == 4) || (timeout == 8) || (timeout == 12))
+ timeout++;
+#endif
+
+#ifdef ESDHCI_QUIRK_BROKEN_TIMEOUT_VALUE
+ timeout = 0xE;
+#endif
+ 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 = (unsigned)data->dest ;
+ unsigned size = roundup(ARCH_DMA_MINALIGN,
+ data->blocks*data->blocksize);
+ unsigned 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.
+ */
+static int
+esdhc_send_cmd(struct mmc *mmc, struct mmc_cmd *cmd, struct mmc_data *data)
+{
+ int err = 0;
+ uint xfertyp;
+ uint irqstat;
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ volatile struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC111
+ if (cmd->cmdidx == MMC_CMD_STOP_TRANSMISSION)
+ return 0;
+#endif
+
+ esdhc_write32(®s->irqstat, -1);
+
+ sync();
+
+ /* Wait for the bus to be idle */
+ while ((esdhc_read32(®s->prsstat) & PRSSTAT_CICHB) ||
+ (esdhc_read32(®s->prsstat) & PRSSTAT_CIDHB))
+ ;
+
+ while (esdhc_read32(®s->prsstat) & PRSSTAT_DLA)
+ ;
+
+ /* Wait at least 8 SD clock cycles before the next command */
+ /*
+ * Note: This is way more than 8 cycles, but 1ms seems to
+ * resolve timing issues with some cards
+ */
+ udelay(1000);
+
+ /* Set up for a data transfer if we have one */
+ if (data) {
+ err = esdhc_setup_data(mmc, data);
+ if(err)
+ return err;
+ }
+
+ /* Figure out the transfer arguments */
+ xfertyp = esdhc_xfertyp(cmd, data);
+
+ /* Mask all irqs */
+ esdhc_write32(®s->irqsigen, 0);
+
+ /* Send the command */
+ esdhc_write32(®s->cmdarg, cmd->cmdarg);
+#if defined(CONFIG_FSL_USDHC)
+ esdhc_write32(®s->mixctrl,
+ (esdhc_read32(®s->mixctrl) & 0xFFFFFF80) | (xfertyp & 0x7F));
+ esdhc_write32(®s->xfertyp, xfertyp & 0xFFFF0000);
+#else
+ esdhc_write32(®s->xfertyp, xfertyp);
+#endif
+
+ /* Wait for the command to complete */
+ while (!(esdhc_read32(®s->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
+ ;
+
+ irqstat = esdhc_read32(®s->irqstat);
+
+ if (irqstat & CMD_ERR) {
+ err = COMM_ERR;
+ goto out;
+ }
+
+ if (irqstat & IRQSTAT_CTOE) {
+ err = TIMEOUT;
+ goto out;
+ }
+
+ /* Workaround for ESDHC errata ENGcm03648 */
+ if (!data && (cmd->resp_type & MMC_RSP_BUSY)) {
+ int timeout = 2500;
+
+ /* Poll on DATA0 line for cmd with busy signal for 250 ms */
+ while (timeout > 0 && !(esdhc_read32(®s->prsstat) &
+ PRSSTAT_DAT0)) {
+ udelay(100);
+ timeout--;
+ }
+
+ if (timeout <= 0) {
+ printf("Timeout waiting for DAT0 to go high!\n");
+ err = TIMEOUT;
+ goto out;
+ }
+ }
+
+ /* Copy the response to the response buffer */
+ if (cmd->resp_type & MMC_RSP_136) {
+ u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
+
+ cmdrsp3 = esdhc_read32(®s->cmdrsp3);
+ cmdrsp2 = esdhc_read32(®s->cmdrsp2);
+ cmdrsp1 = esdhc_read32(®s->cmdrsp1);
+ cmdrsp0 = esdhc_read32(®s->cmdrsp0);
+ cmd->response[0] = (cmdrsp3 << 8) | (cmdrsp2 >> 24);
+ cmd->response[1] = (cmdrsp2 << 8) | (cmdrsp1 >> 24);
+ cmd->response[2] = (cmdrsp1 << 8) | (cmdrsp0 >> 24);
+ cmd->response[3] = (cmdrsp0 << 8);
+ } else
+ cmd->response[0] = esdhc_read32(®s->cmdrsp0);
+
+ /* Wait until all of the blocks are transferred */
+ if (data) {
+#ifdef CONFIG_SYS_FSL_ESDHC_USE_PIO
+ esdhc_pio_read_write(mmc, data);
+#else
+ do {
+ irqstat = esdhc_read32(®s->irqstat);
+
+ if (irqstat & IRQSTAT_DTOE) {
+ err = TIMEOUT;
+ goto out;
+ }
+
+ if (irqstat & DATA_ERR) {
+ err = COMM_ERR;
+ goto out;
+ }
+ } while ((irqstat & DATA_COMPLETE) != DATA_COMPLETE);
+#endif
+ if (data->flags & MMC_DATA_READ)
+ check_and_invalidate_dcache_range(cmd, data);
+ }
+
+out:
+ /* Reset CMD and DATA portions on error */
+ if (err) {
+ esdhc_write32(®s->sysctl, esdhc_read32(®s->sysctl) |
+ SYSCTL_RSTC);
+ while (esdhc_read32(®s->sysctl) & SYSCTL_RSTC)
+ ;
+
+ if (data) {
+ esdhc_write32(®s->sysctl,
+ esdhc_read32(®s->sysctl) |
+ SYSCTL_RSTD);
+ while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTD))
+ ;
+ }
+ }
+
+ esdhc_write32(®s->irqstat, -1);
+
+ return err;
+}
+
+static void set_sysctl(struct mmc *mmc, uint clock)
+{
+ int div, pre_div;
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ volatile struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ int sdhc_clk = cfg->sdhc_clk;
+ uint clk;
+
+ if (clock < mmc->cfg->f_min)
+ clock = mmc->cfg->f_min;
+
+ if (sdhc_clk / 16 > clock) {
+ for (pre_div = 2; pre_div < 256; pre_div *= 2)
+ if ((sdhc_clk / pre_div) <= (clock * 16))
+ break;
+ } else
+ pre_div = 2;
+
+ for (div = 1; div <= 16; div++)
+ if ((sdhc_clk / (div * pre_div)) <= clock)
+ break;
+
+ pre_div >>= 1;
+ div -= 1;
+
+ clk = (pre_div << 8) | (div << 4);
+
+ esdhc_clrbits32(®s->sysctl, SYSCTL_CKEN);
+
+ esdhc_clrsetbits32(®s->sysctl, SYSCTL_CLOCK_MASK, clk);
+
+ udelay(10000);
+
+ clk = SYSCTL_PEREN | SYSCTL_CKEN;
+
+ esdhc_setbits32(®s->sysctl, clk);
+}
+
+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;
+
+ /* Set the clock speed */
+ set_sysctl(mmc, mmc->clock);
+
+ /* Set the bus width */
+ esdhc_clrbits32(®s->proctl, PROCTL_DTW_4 | PROCTL_DTW_8);
+
+ if (mmc->bus_width == 4)
+ esdhc_setbits32(®s->proctl, PROCTL_DTW_4);
+ else if (mmc->bus_width == 8)
+ esdhc_setbits32(®s->proctl, PROCTL_DTW_8);
+
+}
+
+static int esdhc_init(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ int timeout = 1000;
+
+ /* Reset the entire host controller */
+ esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
+
+ /* Wait until the controller is available */
+ while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout)
+ udelay(1000);
+
+#ifndef ARCH_MXC
+ /* Enable cache snooping */
+ esdhc_write32(®s->scr, 0x00000040);
+#endif
+
+ esdhc_setbits32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
+
+ /* Set the initial clock speed */
+ mmc_set_clock(mmc, 400000);
+
+ /* Disable the BRR and BWR bits in IRQSTAT */
+ esdhc_clrbits32(®s->irqstaten, IRQSTATEN_BRR | IRQSTATEN_BWR);
+
+ /* Put the PROCTL reg back to the default */
+ esdhc_write32(®s->proctl, PROCTL_INIT);
+
+ /* Set timout to the maximum value */
+ esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
+
+ return 0;
+}
+
+static int esdhc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ int timeout = 1000;
+
+#ifdef CONFIG_ESDHC_DETECT_QUIRK
+ if (CONFIG_ESDHC_DETECT_QUIRK)
+ return 1;
+#endif
+ while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout)
+ udelay(1000);
+
+ return timeout > 0;
+}
+
+static void esdhc_reset(struct fsl_esdhc *regs)
+{
+ unsigned long timeout = 100; /* wait max 100 ms */
+
+ /* reset the controller */
+ esdhc_setbits32(®s->sysctl, SYSCTL_RSTA);
+
+ /* hardware clears the bit when it is done */
+ while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout)
+ udelay(1000);
+ if (!timeout)
+ printf("MMC/SD: Reset never completed.\n");
+}
+
+static const struct mmc_ops esdhc_ops = {
+ .send_cmd = esdhc_send_cmd,
+ .set_ios = esdhc_set_ios,
+ .init = esdhc_init,
+ .getcd = esdhc_getcd,
+};
+
+int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg)
+{
+ struct fsl_esdhc *regs;
+ struct mmc *mmc;
+ u32 caps, voltage_caps;
+
+ if (!cfg)
+ return -1;
+
+ regs = (struct fsl_esdhc *)cfg->esdhc_base;
+
+ /* First reset the eSDHC controller */
+ esdhc_reset(regs);
+
+ esdhc_setbits32(®s->sysctl, SYSCTL_PEREN | SYSCTL_HCKEN
+ | SYSCTL_IPGEN | SYSCTL_CKEN);
+
+ memset(&cfg->cfg, 0, sizeof(cfg->cfg));
+
+ voltage_caps = 0;
+ caps = regs->hostcapblt;
+
+#ifdef CONFIG_SYS_FSL_ERRATUM_ESDHC135
+ caps = caps & ~(ESDHC_HOSTCAPBLT_SRS |
+ ESDHC_HOSTCAPBLT_VS18 | ESDHC_HOSTCAPBLT_VS30);
+#endif
+
+/* T4240 host controller capabilities register should have VS33 bit */
+#ifdef CONFIG_SYS_FSL_MMC_HAS_CAPBLT_VS33
+ caps = caps | ESDHC_HOSTCAPBLT_VS33;
+#endif
+
+ if (caps & ESDHC_HOSTCAPBLT_VS18)
+ voltage_caps |= MMC_VDD_165_195;
+ if (caps & ESDHC_HOSTCAPBLT_VS30)
+ voltage_caps |= MMC_VDD_29_30 | MMC_VDD_30_31;
+ if (caps & ESDHC_HOSTCAPBLT_VS33)
+ voltage_caps |= MMC_VDD_32_33 | MMC_VDD_33_34;
+
+ cfg->cfg.name = "FSL_SDHC";
+ cfg->cfg.ops = &esdhc_ops;
+#ifdef CONFIG_SYS_SD_VOLTAGE
+ cfg->cfg.voltages = CONFIG_SYS_SD_VOLTAGE;
+#else
+ cfg->cfg.voltages = MMC_VDD_32_33 | MMC_VDD_33_34;
+#endif
+ if ((cfg->cfg.voltages & voltage_caps) == 0) {
+ printf("voltage not supported by controller\n");
+ return -1;
+ }
+
+ cfg->cfg.host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HC;
+
+ if (cfg->max_bus_width > 0) {
+ if (cfg->max_bus_width < 8)
+ cfg->cfg.host_caps &= ~MMC_MODE_8BIT;
+ if (cfg->max_bus_width < 4)
+ cfg->cfg.host_caps &= ~MMC_MODE_4BIT;
+ }
+
+ if (caps & ESDHC_HOSTCAPBLT_HSS)
+ cfg->cfg.host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
+
+#ifdef CONFIG_ESDHC_DETECT_8_BIT_QUIRK
+ if (CONFIG_ESDHC_DETECT_8_BIT_QUIRK)
+ cfg->cfg.host_caps &= ~MMC_MODE_8BIT;
+#endif
+
+ cfg->cfg.f_min = 400000;
+ cfg->cfg.f_max = MIN(gd->arch.sdhc_clk, 52000000);
+
+ cfg->cfg.b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT;
+
+ mmc = mmc_create(&cfg->cfg, cfg);
+ if (mmc == NULL)
+ return -1;
+
+ return 0;
+}
+
+int fsl_esdhc_mmc_init(bd_t *bis)
+{
+ struct fsl_esdhc_cfg *cfg;
+
+ cfg = calloc(sizeof(struct fsl_esdhc_cfg), 1);
+ cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
+ cfg->sdhc_clk = gd->arch.sdhc_clk;
+ return fsl_esdhc_initialize(bis, cfg);
+}
+
+#ifdef CONFIG_OF_LIBFDT
+void fdt_fixup_esdhc(void *blob, bd_t *bd)
+{
+ const char *compat = "fsl,esdhc";
+
+#ifdef CONFIG_FSL_ESDHC_PIN_MUX
+ if (!hwconfig("esdhc")) {
+ do_fixup_by_compat(blob, compat, "status", "disabled",
+ 8 + 1, 1);
+ return;
+ }
+#endif
+
+ do_fixup_by_compat_u32(blob, compat, "clock-frequency",
+ gd->arch.sdhc_clk, 1);
+
+ do_fixup_by_compat(blob, compat, "status", "okay",
+ 4 + 1, 1);
+}
+#endif
Code Review / kvmfornfv.git / blobdiff