diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/sdhci.c | 80 |
1 files changed, 24 insertions, 56 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 445788159647..b9aa60aed7f0 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -124,7 +124,12 @@ static void sdhci_init(struct sdhci_host *host) sdhci_reset(host, SDHCI_RESET_ALL); - intmask = ~(SDHCI_INT_CARD_INT | SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL); + intmask = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | + SDHCI_INT_DATA_CRC | SDHCI_INT_DATA_TIMEOUT | SDHCI_INT_INDEX | + SDHCI_INT_END_BIT | SDHCI_INT_CRC | SDHCI_INT_TIMEOUT | + SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT | + SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL | + SDHCI_INT_DMA_END | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE; writel(intmask, host->ioaddr + SDHCI_INT_ENABLE); writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE); @@ -360,7 +365,6 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host, static void sdhci_finish_data(struct sdhci_host *host) { struct mmc_data *data; - u32 intmask; u16 blocks; BUG_ON(!host->data); @@ -371,14 +375,6 @@ static void sdhci_finish_data(struct sdhci_host *host) if (host->flags & SDHCI_USE_DMA) { pci_unmap_sg(host->chip->pdev, data->sg, data->sg_len, (data->flags & MMC_DATA_READ)?PCI_DMA_FROMDEVICE:PCI_DMA_TODEVICE); - } else { - intmask = readl(host->ioaddr + SDHCI_SIGNAL_ENABLE); - intmask &= ~(SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL); - writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE); - - intmask = readl(host->ioaddr + SDHCI_INT_ENABLE); - intmask &= ~(SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL); - writel(intmask, host->ioaddr + SDHCI_INT_ENABLE); } /* @@ -512,31 +508,9 @@ static void sdhci_finish_command(struct sdhci_host *host) DBG("Ending cmd (%x)\n", host->cmd->opcode); - if (host->cmd->data) { - u32 intmask; - + if (host->cmd->data) host->data = host->cmd->data; - - if (!(host->flags & SDHCI_USE_DMA)) { - /* - * Don't enable the interrupts until now to make sure we - * get stable handling of the FIFO. - */ - intmask = readl(host->ioaddr + SDHCI_INT_ENABLE); - intmask |= SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL; - writel(intmask, host->ioaddr + SDHCI_INT_ENABLE); - - intmask = readl(host->ioaddr + SDHCI_SIGNAL_ENABLE); - intmask |= SDHCI_INT_BUF_EMPTY | SDHCI_INT_BUF_FULL; - writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE); - - /* - * The buffer interrupts are to unreliable so we - * start the transfer immediatly. - */ - sdhci_transfer_pio(host); - } - } else + else tasklet_schedule(&host->finish_tasklet); host->cmd = NULL; @@ -914,50 +888,44 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id, struct pt_regs *regs) DBG("*** %s got interrupt: 0x%08x\n", host->slot_descr, intmask); - if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE)) + if (intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE)) { + writel(intmask & (SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE), + host->ioaddr + SDHCI_INT_STATUS); tasklet_schedule(&host->card_tasklet); + } - if (intmask & SDHCI_INT_CMD_MASK) { - sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); + intmask &= ~(SDHCI_INT_CARD_INSERT | SDHCI_INT_CARD_REMOVE); + if (intmask & SDHCI_INT_CMD_MASK) { writel(intmask & SDHCI_INT_CMD_MASK, host->ioaddr + SDHCI_INT_STATUS); + sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); } if (intmask & SDHCI_INT_DATA_MASK) { - sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); - writel(intmask & SDHCI_INT_DATA_MASK, host->ioaddr + SDHCI_INT_STATUS); + sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); } intmask &= ~(SDHCI_INT_CMD_MASK | SDHCI_INT_DATA_MASK); - if (intmask & SDHCI_INT_CARD_INT) { - printk(KERN_ERR "%s: Unexpected card interrupt. Please " - "report this to " BUGMAIL ".\n", - mmc_hostname(host->mmc)); - sdhci_dumpregs(host); - } - if (intmask & SDHCI_INT_BUS_POWER) { - printk(KERN_ERR "%s: Unexpected bus power interrupt. Please " - "report this to " BUGMAIL ".\n", + printk(KERN_ERR "%s: Card is consuming too much power!\n", mmc_hostname(host->mmc)); - sdhci_dumpregs(host); + writel(SDHCI_INT_BUS_POWER, host->ioaddr + SDHCI_INT_STATUS); } - if (intmask & SDHCI_INT_ACMD12ERR) { - printk(KERN_ERR "%s: Unexpected auto CMD12 error. Please " + intmask &= SDHCI_INT_BUS_POWER; + + if (intmask) { + printk(KERN_ERR "%s: Unexpected interrupt 0x%08x. Please " "report this to " BUGMAIL ".\n", - mmc_hostname(host->mmc)); + mmc_hostname(host->mmc), intmask); sdhci_dumpregs(host); - writew(~0, host->ioaddr + SDHCI_ACMD12_ERR); - } - - if (intmask) writel(intmask, host->ioaddr + SDHCI_INT_STATUS); + } result = IRQ_HANDLED; |