uint autoc12err;
uint hostcapblt;
uint wml;
- char reserved1[8];
+ uint mixctrl;
+ char reserved1[4];
uint fevt;
char reserved2[168];
uint hostver;
};
/* Return the XFERTYP flags for a given command and data packet */
-uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
+static uint esdhc_xfertyp(struct mmc_cmd *cmd, struct mmc_data *data)
{
uint xfertyp = 0;
static void
esdhc_pio_read_write(struct mmc *mmc, struct mmc_data *data)
{
- struct fsl_esdhc *regs = mmc->priv;
+ struct fsl_esdhc_cfg *cfg = mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
uint blocks;
char *buffer;
uint databuf;
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) {
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.
/* 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
+
+ /* Mask all irqs */
+ esdhc_write32(®s->irqsigen, 0);
/* Wait for the command to complete */
- while (!(esdhc_read32(®s->irqstat) & IRQSTAT_CC))
+ while (!(esdhc_read32(®s->irqstat) & (IRQSTAT_CC | IRQSTAT_CTOE)))
;
+ if (data && (data->flags & MMC_DATA_READ))
+ check_and_invalidate_dcache_range(cmd, data);
+
irqstat = esdhc_read32(®s->irqstat);
esdhc_write32(®s->irqstat, irqstat);
+ /* Reset CMD and DATA portions on error */
+ if (irqstat & (CMD_ERR | IRQSTAT_CTOE)) {
+ 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))
+ ;
+ }
+ }
+
if (irqstat & CMD_ERR)
return COMM_ERR;
if (irqstat & IRQSTAT_CTOE)
return TIMEOUT;
+ /* 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");
+ return TIMEOUT;
+ }
+ }
+
/* Copy the response to the response buffer */
if (cmd->resp_type & MMC_RSP_136) {
u32 cmdrsp3, cmdrsp2, cmdrsp1, cmdrsp0;
return 0;
}
-void set_sysctl(struct mmc *mmc, uint clock)
+static void set_sysctl(struct mmc *mmc, uint clock)
{
- int sdhc_clk = gd->sdhc_clk;
int div, pre_div;
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_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->f_min)
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
int timeout = 1000;
- int ret = 0;
- u8 card_absent;
/* Reset the entire host controller */
esdhc_write32(®s->sysctl, SYSCTL_RSTA);
while ((esdhc_read32(®s->sysctl) & SYSCTL_RSTA) && --timeout)
udelay(1000);
+#ifndef ARCH_MXC
/* Enable cache snooping */
- if (cfg && !cfg->no_snoop)
- esdhc_write32(®s->scr, 0x00000040);
+ esdhc_write32(®s->scr, 0x00000040);
+#endif
esdhc_write32(®s->sysctl, SYSCTL_HCKEN | SYSCTL_IPGEN);
/* Set timout to the maximum value */
esdhc_clrsetbits32(®s->sysctl, SYSCTL_TIMEOUT_MASK, 14 << 16);
- /* Check if there is a callback for detecting the card */
- if (board_mmc_getcd(&card_absent, mmc)) {
- timeout = 1000;
- while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) &&
- --timeout)
- udelay(1000);
+ return 0;
+}
- if (timeout <= 0)
- ret = NO_CARD_ERR;
- } else {
- if (card_absent)
- ret = NO_CARD_ERR;
- }
+static int esdhc_getcd(struct mmc *mmc)
+{
+ struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
+ struct fsl_esdhc *regs = (struct fsl_esdhc *)cfg->esdhc_base;
+ int timeout = 1000;
- return ret;
+ while (!(esdhc_read32(®s->prsstat) & PRSSTAT_CINS) && --timeout)
+ udelay(1000);
+
+ return timeout > 0;
}
static void esdhc_reset(struct fsl_esdhc *regs)
mmc = malloc(sizeof(struct mmc));
- sprintf(mmc->name, "FSL_ESDHC");
+ sprintf(mmc->name, "FSL_SDHC");
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);
+
mmc->priv = cfg;
mmc->send_cmd = esdhc_send_cmd;
mmc->set_ios = esdhc_set_ios;
mmc->init = esdhc_init;
+ mmc->getcd = esdhc_getcd;
voltage_caps = 0;
caps = regs->hostcapblt;
return -1;
}
- mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT;
+ mmc->host_caps = MMC_MODE_4BIT | MMC_MODE_8BIT | MMC_MODE_HC;
if (caps & ESDHC_HOSTCAPBLT_HSS)
mmc->host_caps |= MMC_MODE_HS_52MHz | MMC_MODE_HS;
mmc->f_min = 400000;
- mmc->f_max = MIN(gd->sdhc_clk, 52000000);
+ mmc->f_max = MIN(gd->arch.sdhc_clk, 52000000);
+ mmc->b_max = 0;
mmc_register(mmc);
return 0;
cfg = malloc(sizeof(struct fsl_esdhc_cfg));
memset(cfg, 0, sizeof(struct fsl_esdhc_cfg));
cfg->esdhc_base = CONFIG_SYS_FSL_ESDHC_ADDR;
+ cfg->sdhc_clk = gd->arch.sdhc_clk;
return fsl_esdhc_initialize(bis, cfg);
}
#endif
do_fixup_by_compat_u32(blob, compat, "clock-frequency",
- gd->sdhc_clk, 1);
+ gd->arch.sdhc_clk, 1);
do_fixup_by_compat(blob, compat, "status", "okay",
4 + 1, 1);
projects / karo-tx-uboot.git / blobdiff