diff options
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
-rw-r--r-- | drivers/mmc/host/sdhci.c | 322 |
1 files changed, 211 insertions, 111 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index f52f3053ed92..30d8e3d4e6fd 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -48,35 +48,35 @@ static void sdhci_dumpregs(struct sdhci_host *host) printk(KERN_DEBUG DRIVER_NAME ": ============== REGISTER DUMP ==============\n"); printk(KERN_DEBUG DRIVER_NAME ": Sys addr: 0x%08x | Version: 0x%08x\n", - readl(host->ioaddr + SDHCI_DMA_ADDRESS), - readw(host->ioaddr + SDHCI_HOST_VERSION)); + sdhci_readl(host, SDHCI_DMA_ADDRESS), + sdhci_readw(host, SDHCI_HOST_VERSION)); printk(KERN_DEBUG DRIVER_NAME ": Blk size: 0x%08x | Blk cnt: 0x%08x\n", - readw(host->ioaddr + SDHCI_BLOCK_SIZE), - readw(host->ioaddr + SDHCI_BLOCK_COUNT)); + sdhci_readw(host, SDHCI_BLOCK_SIZE), + sdhci_readw(host, SDHCI_BLOCK_COUNT)); printk(KERN_DEBUG DRIVER_NAME ": Argument: 0x%08x | Trn mode: 0x%08x\n", - readl(host->ioaddr + SDHCI_ARGUMENT), - readw(host->ioaddr + SDHCI_TRANSFER_MODE)); + sdhci_readl(host, SDHCI_ARGUMENT), + sdhci_readw(host, SDHCI_TRANSFER_MODE)); printk(KERN_DEBUG DRIVER_NAME ": Present: 0x%08x | Host ctl: 0x%08x\n", - readl(host->ioaddr + SDHCI_PRESENT_STATE), - readb(host->ioaddr + SDHCI_HOST_CONTROL)); + sdhci_readl(host, SDHCI_PRESENT_STATE), + sdhci_readb(host, SDHCI_HOST_CONTROL)); printk(KERN_DEBUG DRIVER_NAME ": Power: 0x%08x | Blk gap: 0x%08x\n", - readb(host->ioaddr + SDHCI_POWER_CONTROL), - readb(host->ioaddr + SDHCI_BLOCK_GAP_CONTROL)); + sdhci_readb(host, SDHCI_POWER_CONTROL), + sdhci_readb(host, SDHCI_BLOCK_GAP_CONTROL)); printk(KERN_DEBUG DRIVER_NAME ": Wake-up: 0x%08x | Clock: 0x%08x\n", - readb(host->ioaddr + SDHCI_WAKE_UP_CONTROL), - readw(host->ioaddr + SDHCI_CLOCK_CONTROL)); + sdhci_readb(host, SDHCI_WAKE_UP_CONTROL), + sdhci_readw(host, SDHCI_CLOCK_CONTROL)); printk(KERN_DEBUG DRIVER_NAME ": Timeout: 0x%08x | Int stat: 0x%08x\n", - readb(host->ioaddr + SDHCI_TIMEOUT_CONTROL), - readl(host->ioaddr + SDHCI_INT_STATUS)); + sdhci_readb(host, SDHCI_TIMEOUT_CONTROL), + sdhci_readl(host, SDHCI_INT_STATUS)); printk(KERN_DEBUG DRIVER_NAME ": Int enab: 0x%08x | Sig enab: 0x%08x\n", - readl(host->ioaddr + SDHCI_INT_ENABLE), - readl(host->ioaddr + SDHCI_SIGNAL_ENABLE)); + sdhci_readl(host, SDHCI_INT_ENABLE), + sdhci_readl(host, SDHCI_SIGNAL_ENABLE)); printk(KERN_DEBUG DRIVER_NAME ": AC12 err: 0x%08x | Slot int: 0x%08x\n", - readw(host->ioaddr + SDHCI_ACMD12_ERR), - readw(host->ioaddr + SDHCI_SLOT_INT_STATUS)); + sdhci_readw(host, SDHCI_ACMD12_ERR), + sdhci_readw(host, SDHCI_SLOT_INT_STATUS)); printk(KERN_DEBUG DRIVER_NAME ": Caps: 0x%08x | Max curr: 0x%08x\n", - readl(host->ioaddr + SDHCI_CAPABILITIES), - readl(host->ioaddr + SDHCI_MAX_CURRENT)); + sdhci_readl(host, SDHCI_CAPABILITIES), + sdhci_readl(host, SDHCI_MAX_CURRENT)); printk(KERN_DEBUG DRIVER_NAME ": ===========================================\n"); } @@ -87,17 +87,65 @@ static void sdhci_dumpregs(struct sdhci_host *host) * * \*****************************************************************************/ +static void sdhci_clear_set_irqs(struct sdhci_host *host, u32 clear, u32 set) +{ + u32 ier; + + ier = sdhci_readl(host, SDHCI_INT_ENABLE); + ier &= ~clear; + ier |= set; + sdhci_writel(host, ier, SDHCI_INT_ENABLE); + sdhci_writel(host, ier, SDHCI_SIGNAL_ENABLE); +} + +static void sdhci_unmask_irqs(struct sdhci_host *host, u32 irqs) +{ + sdhci_clear_set_irqs(host, 0, irqs); +} + +static void sdhci_mask_irqs(struct sdhci_host *host, u32 irqs) +{ + sdhci_clear_set_irqs(host, irqs, 0); +} + +static void sdhci_set_card_detection(struct sdhci_host *host, bool enable) +{ + u32 irqs = SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT; + + if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) + return; + + if (enable) + sdhci_unmask_irqs(host, irqs); + else + sdhci_mask_irqs(host, irqs); +} + +static void sdhci_enable_card_detection(struct sdhci_host *host) +{ + sdhci_set_card_detection(host, true); +} + +static void sdhci_disable_card_detection(struct sdhci_host *host) +{ + sdhci_set_card_detection(host, false); +} + static void sdhci_reset(struct sdhci_host *host, u8 mask) { unsigned long timeout; + u32 uninitialized_var(ier); if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) { - if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & + if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) return; } - writeb(mask, host->ioaddr + SDHCI_SOFTWARE_RESET); + if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) + ier = sdhci_readl(host, SDHCI_INT_ENABLE); + + sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET); if (mask & SDHCI_RESET_ALL) host->clock = 0; @@ -106,7 +154,7 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) timeout = 100; /* hw clears the bit when it's done */ - while (readb(host->ioaddr + SDHCI_SOFTWARE_RESET) & mask) { + while (sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask) { if (timeout == 0) { printk(KERN_ERR "%s: Reset 0x%x never completed.\n", mmc_hostname(host->mmc), (int)mask); @@ -116,42 +164,44 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask) timeout--; mdelay(1); } + + if (host->quirks & SDHCI_QUIRK_RESTORE_IRQS_AFTER_RESET) + sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, ier); } static void sdhci_init(struct sdhci_host *host) { - u32 intmask; - sdhci_reset(host, SDHCI_RESET_ALL); - intmask = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT | + sdhci_clear_set_irqs(host, SDHCI_INT_ALL_MASK, + 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_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL | - SDHCI_INT_DMA_END | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE | - SDHCI_INT_ADMA_ERROR; + SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE); +} - writel(intmask, host->ioaddr + SDHCI_INT_ENABLE); - writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE); +static void sdhci_reinit(struct sdhci_host *host) +{ + sdhci_init(host); + sdhci_enable_card_detection(host); } static void sdhci_activate_led(struct sdhci_host *host) { u8 ctrl; - ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL); + ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); ctrl |= SDHCI_CTRL_LED; - writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL); + sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } static void sdhci_deactivate_led(struct sdhci_host *host) { u8 ctrl; - ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL); + ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); ctrl &= ~SDHCI_CTRL_LED; - writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL); + sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } #ifdef SDHCI_USE_LEDS_CLASS @@ -205,7 +255,7 @@ static void sdhci_read_block_pio(struct sdhci_host *host) while (len) { if (chunk == 0) { - scratch = readl(host->ioaddr + SDHCI_BUFFER); + scratch = sdhci_readl(host, SDHCI_BUFFER); chunk = 4; } @@ -257,7 +307,7 @@ static void sdhci_write_block_pio(struct sdhci_host *host) len--; if ((chunk == 4) || ((len == 0) && (blksize == 0))) { - writel(scratch, host->ioaddr + SDHCI_BUFFER); + sdhci_writel(host, scratch, SDHCI_BUFFER); chunk = 0; scratch = 0; } @@ -292,7 +342,10 @@ static void sdhci_transfer_pio(struct sdhci_host *host) (host->data->blocks == 1)) mask = ~0; - while (readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask) { + while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { + if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY) + udelay(100); + if (host->data->flags & MMC_DATA_READ) sdhci_read_block_pio(host); else @@ -561,6 +614,17 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_data *data) return count; } +static void sdhci_set_transfer_irqs(struct sdhci_host *host) +{ + u32 pio_irqs = SDHCI_INT_DATA_AVAIL | SDHCI_INT_SPACE_AVAIL; + u32 dma_irqs = SDHCI_INT_DMA_END | SDHCI_INT_ADMA_ERROR; + + if (host->flags & SDHCI_REQ_USE_DMA) + sdhci_clear_set_irqs(host, pio_irqs, dma_irqs); + else + sdhci_clear_set_irqs(host, dma_irqs, pio_irqs); +} + static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) { u8 count; @@ -581,7 +645,7 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) host->data_early = 0; count = sdhci_calc_timeout(host, data); - writeb(count, host->ioaddr + SDHCI_TIMEOUT_CONTROL); + sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL); if (host->flags & SDHCI_USE_DMA) host->flags |= SDHCI_REQ_USE_DMA; @@ -661,8 +725,8 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) WARN_ON(1); host->flags &= ~SDHCI_REQ_USE_DMA; } else { - writel(host->adma_addr, - host->ioaddr + SDHCI_ADMA_ADDRESS); + sdhci_writel(host, host->adma_addr, + SDHCI_ADMA_ADDRESS); } } else { int sg_cnt; @@ -681,8 +745,8 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) host->flags &= ~SDHCI_REQ_USE_DMA; } else { WARN_ON(sg_cnt != 1); - writel(sg_dma_address(data->sg), - host->ioaddr + SDHCI_DMA_ADDRESS); + sdhci_writel(host, sg_dma_address(data->sg), + SDHCI_DMA_ADDRESS); } } } @@ -693,14 +757,14 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) * is ADMA. */ if (host->version >= SDHCI_SPEC_200) { - ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL); + ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); ctrl &= ~SDHCI_CTRL_DMA_MASK; if ((host->flags & SDHCI_REQ_USE_DMA) && (host->flags & SDHCI_USE_ADMA)) ctrl |= SDHCI_CTRL_ADMA32; else ctrl |= SDHCI_CTRL_SDMA; - writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL); + sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } if (!(host->flags & SDHCI_REQ_USE_DMA)) { @@ -709,10 +773,11 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data) host->blocks = data->blocks; } + sdhci_set_transfer_irqs(host); + /* We do not handle DMA boundaries, so set it to max (512 KiB) */ - writew(SDHCI_MAKE_BLKSZ(7, data->blksz), - host->ioaddr + SDHCI_BLOCK_SIZE); - writew(data->blocks, host->ioaddr + SDHCI_BLOCK_COUNT); + sdhci_writew(host, SDHCI_MAKE_BLKSZ(7, data->blksz), SDHCI_BLOCK_SIZE); + sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT); } static void sdhci_set_transfer_mode(struct sdhci_host *host, @@ -733,7 +798,7 @@ static void sdhci_set_transfer_mode(struct sdhci_host *host, if (host->flags & SDHCI_REQ_USE_DMA) mode |= SDHCI_TRNS_DMA; - writew(mode, host->ioaddr + SDHCI_TRANSFER_MODE); + sdhci_writew(host, mode, SDHCI_TRANSFER_MODE); } static void sdhci_finish_data(struct sdhci_host *host) @@ -802,7 +867,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) if (host->mrq->data && (cmd == host->mrq->data->stop)) mask &= ~SDHCI_DATA_INHIBIT; - while (readl(host->ioaddr + SDHCI_PRESENT_STATE) & mask) { + while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) { if (timeout == 0) { printk(KERN_ERR "%s: Controller never released " "inhibit bit(s).\n", mmc_hostname(host->mmc)); @@ -821,7 +886,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) sdhci_prepare_data(host, cmd->data); - writel(cmd->arg, host->ioaddr + SDHCI_ARGUMENT); + sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT); sdhci_set_transfer_mode(host, cmd->data); @@ -849,8 +914,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd) if (cmd->data) flags |= SDHCI_CMD_DATA; - writew(SDHCI_MAKE_CMD(cmd->opcode, flags), - host->ioaddr + SDHCI_COMMAND); + sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND); } static void sdhci_finish_command(struct sdhci_host *host) @@ -863,15 +927,15 @@ static void sdhci_finish_command(struct sdhci_host *host) if (host->cmd->flags & MMC_RSP_136) { /* CRC is stripped so we need to do some shifting. */ for (i = 0;i < 4;i++) { - host->cmd->resp[i] = readl(host->ioaddr + + host->cmd->resp[i] = sdhci_readl(host, SDHCI_RESPONSE + (3-i)*4) << 8; if (i != 3) host->cmd->resp[i] |= - readb(host->ioaddr + + sdhci_readb(host, SDHCI_RESPONSE + (3-i)*4-1); } } else { - host->cmd->resp[0] = readl(host->ioaddr + SDHCI_RESPONSE); + host->cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE); } } @@ -895,7 +959,13 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) if (clock == host->clock) return; - writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL); + if (host->ops->set_clock) { + host->ops->set_clock(host, clock); + if (host->quirks & SDHCI_QUIRK_NONSTANDARD_CLOCK) + return; + } + + sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL); if (clock == 0) goto out; @@ -908,11 +978,11 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) clk = div << SDHCI_DIVIDER_SHIFT; clk |= SDHCI_CLOCK_INT_EN; - writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL); + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); /* Wait max 10 ms */ timeout = 10; - while (!((clk = readw(host->ioaddr + SDHCI_CLOCK_CONTROL)) + while (!((clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL)) & SDHCI_CLOCK_INT_STABLE)) { if (timeout == 0) { printk(KERN_ERR "%s: Internal clock never " @@ -925,7 +995,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) } clk |= SDHCI_CLOCK_CARD_EN; - writew(clk, host->ioaddr + SDHCI_CLOCK_CONTROL); + sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL); out: host->clock = clock; @@ -939,7 +1009,7 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) return; if (power == (unsigned short)-1) { - writeb(0, host->ioaddr + SDHCI_POWER_CONTROL); + sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); goto out; } @@ -948,7 +1018,7 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) * a new value. Some controllers don't seem to like this though. */ if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE)) - writeb(0, host->ioaddr + SDHCI_POWER_CONTROL); + sdhci_writeb(host, 0, SDHCI_POWER_CONTROL); pwr = SDHCI_POWER_ON; @@ -973,10 +1043,9 @@ static void sdhci_set_power(struct sdhci_host *host, unsigned short power) * and set turn on power at the same time, so set the voltage first. */ if ((host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER)) - writeb(pwr & ~SDHCI_POWER_ON, - host->ioaddr + SDHCI_POWER_CONTROL); + sdhci_writeb(host, pwr & ~SDHCI_POWER_ON, SDHCI_POWER_CONTROL); - writeb(pwr, host->ioaddr + SDHCI_POWER_CONTROL); + sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL); out: host->power = power; @@ -991,6 +1060,7 @@ out: static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) { struct sdhci_host *host; + bool present; unsigned long flags; host = mmc_priv(mmc); @@ -1005,8 +1075,14 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) host->mrq = mrq; - if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT) - || (host->flags & SDHCI_DEVICE_DEAD)) { + /* If polling, assume that the card is always present. */ + if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) + present = true; + else + present = sdhci_readl(host, SDHCI_PRESENT_STATE) & + SDHCI_CARD_PRESENT; + + if (!present || host->flags & SDHCI_DEVICE_DEAD) { host->mrq->cmd->error = -ENOMEDIUM; tasklet_schedule(&host->finish_tasklet); } else @@ -1034,8 +1110,8 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) * Should clear out any weird states. */ if (ios->power_mode == MMC_POWER_OFF) { - writel(0, host->ioaddr + SDHCI_SIGNAL_ENABLE); - sdhci_init(host); + sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE); + sdhci_reinit(host); } sdhci_set_clock(host, ios->clock); @@ -1045,7 +1121,7 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) else sdhci_set_power(host, ios->vdd); - ctrl = readb(host->ioaddr + SDHCI_HOST_CONTROL); + ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL); if (ios->bus_width == MMC_BUS_WIDTH_4) ctrl |= SDHCI_CTRL_4BITBUS; @@ -1057,7 +1133,7 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) else ctrl &= ~SDHCI_CTRL_HISPD; - writeb(ctrl, host->ioaddr + SDHCI_HOST_CONTROL); + sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); /* * Some (ENE) controllers go apeshit on some ios operation, @@ -1085,10 +1161,12 @@ static int sdhci_get_ro(struct mmc_host *mmc) if (host->flags & SDHCI_DEVICE_DEAD) present = 0; else - present = readl(host->ioaddr + SDHCI_PRESENT_STATE); + present = sdhci_readl(host, SDHCI_PRESENT_STATE); spin_unlock_irqrestore(&host->lock, flags); + if (host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT) + return !!(present & SDHCI_WRITE_PROTECT); return !(present & SDHCI_WRITE_PROTECT); } @@ -1096,7 +1174,6 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable) { struct sdhci_host *host; unsigned long flags; - u32 ier; host = mmc_priv(mmc); @@ -1105,15 +1182,10 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable) if (host->flags & SDHCI_DEVICE_DEAD) goto out; - ier = readl(host->ioaddr + SDHCI_INT_ENABLE); - - ier &= ~SDHCI_INT_CARD_INT; if (enable) - ier |= SDHCI_INT_CARD_INT; - - writel(ier, host->ioaddr + SDHCI_INT_ENABLE); - writel(ier, host->ioaddr + SDHCI_SIGNAL_ENABLE); - + sdhci_unmask_irqs(host, SDHCI_INT_CARD_INT); + else + sdhci_mask_irqs(host, SDHCI_INT_CARD_INT); out: mmiowb(); @@ -1142,7 +1214,7 @@ static void sdhci_tasklet_card(unsigned long param) spin_lock_irqsave(&host->lock, flags); - if (!(readl(host->ioaddr + SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) { + if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)) { if (host->mrq) { printk(KERN_ERR "%s: Card removed during transfer!\n", mmc_hostname(host->mmc)); @@ -1291,8 +1363,11 @@ static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask) if (host->cmd->data) DBG("Cannot wait for busy signal when also " "doing a data transfer"); - else + else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ)) return; + + /* The controller does not support the end-of-busy IRQ, + * fall through and take the SDHCI_INT_RESPONSE */ } if (intmask & SDHCI_INT_RESPONSE) @@ -1343,8 +1418,8 @@ static void sdhci_data_irq(struct sdhci_host *host, u32 intmask) * we need to at least restart the transfer. */ if (intmask & SDHCI_INT_DMA_END) - writel(readl(host->ioaddr + SDHCI_DMA_ADDRESS), - host->ioaddr + SDHCI_DMA_ADDRESS); + sdhci_writel(host, sdhci_readl(host, SDHCI_DMA_ADDRESS), + SDHCI_DMA_ADDRESS); if (intmask & SDHCI_INT_DATA_END) { if (host->cmd) { @@ -1370,7 +1445,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) spin_lock(&host->lock); - intmask = readl(host->ioaddr + SDHCI_INT_STATUS); + intmask = sdhci_readl(host, SDHCI_INT_STATUS); if (!intmask || intmask == 0xffffffff) { result = IRQ_NONE; @@ -1381,22 +1456,22 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) mmc_hostname(host->mmc), intmask); 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); + sdhci_writel(host, intmask & (SDHCI_INT_CARD_INSERT | + SDHCI_INT_CARD_REMOVE), SDHCI_INT_STATUS); tasklet_schedule(&host->card_tasklet); } 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_writel(host, intmask & SDHCI_INT_CMD_MASK, + SDHCI_INT_STATUS); sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK); } if (intmask & SDHCI_INT_DATA_MASK) { - writel(intmask & SDHCI_INT_DATA_MASK, - host->ioaddr + SDHCI_INT_STATUS); + sdhci_writel(host, intmask & SDHCI_INT_DATA_MASK, + SDHCI_INT_STATUS); sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK); } @@ -1407,7 +1482,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) if (intmask & SDHCI_INT_BUS_POWER) { printk(KERN_ERR "%s: Card is consuming too much power!\n", mmc_hostname(host->mmc)); - writel(SDHCI_INT_BUS_POWER, host->ioaddr + SDHCI_INT_STATUS); + sdhci_writel(host, SDHCI_INT_BUS_POWER, SDHCI_INT_STATUS); } intmask &= ~SDHCI_INT_BUS_POWER; @@ -1422,7 +1497,7 @@ static irqreturn_t sdhci_irq(int irq, void *dev_id) mmc_hostname(host->mmc), intmask); sdhci_dumpregs(host); - writel(intmask, host->ioaddr + SDHCI_INT_STATUS); + sdhci_writel(host, intmask, SDHCI_INT_STATUS); } result = IRQ_HANDLED; @@ -1452,6 +1527,8 @@ int sdhci_suspend_host(struct sdhci_host *host, pm_message_t state) { int ret; + sdhci_disable_card_detection(host); + ret = mmc_suspend_host(host->mmc, state); if (ret) return ret; @@ -1484,6 +1561,8 @@ int sdhci_resume_host(struct sdhci_host *host) if (ret) return ret; + sdhci_enable_card_detection(host); + return 0; } @@ -1534,7 +1613,7 @@ int sdhci_add_host(struct sdhci_host *host) sdhci_reset(host, SDHCI_RESET_ALL); - host->version = readw(host->ioaddr + SDHCI_HOST_VERSION); + host->version = sdhci_readw(host, SDHCI_HOST_VERSION); host->version = (host->version & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT; if (host->version > SDHCI_SPEC_200) { @@ -1543,7 +1622,7 @@ int sdhci_add_host(struct sdhci_host *host) host->version); } - caps = readl(host->ioaddr + SDHCI_CAPABILITIES); + caps = sdhci_readl(host, SDHCI_CAPABILITIES); if (host->quirks & SDHCI_QUIRK_FORCE_DMA) host->flags |= SDHCI_USE_DMA; @@ -1611,19 +1690,27 @@ int sdhci_add_host(struct sdhci_host *host) host->max_clk = (caps & SDHCI_CLOCK_BASE_MASK) >> SDHCI_CLOCK_BASE_SHIFT; + host->max_clk *= 1000000; if (host->max_clk == 0) { - printk(KERN_ERR "%s: Hardware doesn't specify base clock " - "frequency.\n", mmc_hostname(mmc)); - return -ENODEV; + if (!host->ops->get_max_clock) { + printk(KERN_ERR + "%s: Hardware doesn't specify base clock " + "frequency.\n", mmc_hostname(mmc)); + return -ENODEV; + } + host->max_clk = host->ops->get_max_clock(host); } - host->max_clk *= 1000000; host->timeout_clk = (caps & SDHCI_TIMEOUT_CLK_MASK) >> SDHCI_TIMEOUT_CLK_SHIFT; if (host->timeout_clk == 0) { - printk(KERN_ERR "%s: Hardware doesn't specify timeout clock " - "frequency.\n", mmc_hostname(mmc)); - return -ENODEV; + if (!host->ops->get_timeout_clock) { + printk(KERN_ERR + "%s: Hardware doesn't specify timeout clock " + "frequency.\n", mmc_hostname(mmc)); + return -ENODEV; + } + host->timeout_clk = host->ops->get_timeout_clock(host); } if (caps & SDHCI_TIMEOUT_CLK_UNIT) host->timeout_clk *= 1000; @@ -1639,6 +1726,9 @@ int sdhci_add_host(struct sdhci_host *host) if (caps & SDHCI_CAN_DO_HISPD) mmc->caps |= MMC_CAP_SD_HIGHSPEED; + if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) + mmc->caps |= MMC_CAP_NEEDS_POLL; + mmc->ocr_avail = 0; if (caps & SDHCI_CAN_VDD_330) mmc->ocr_avail |= MMC_VDD_32_33|MMC_VDD_33_34; @@ -1687,13 +1777,19 @@ int sdhci_add_host(struct sdhci_host *host) * Maximum block size. This varies from controller to controller and * is specified in the capabilities register. */ - mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >> SDHCI_MAX_BLOCK_SHIFT; - if (mmc->max_blk_size >= 3) { - printk(KERN_WARNING "%s: Invalid maximum block size, " - "assuming 512 bytes\n", mmc_hostname(mmc)); - mmc->max_blk_size = 512; - } else - mmc->max_blk_size = 512 << mmc->max_blk_size; + if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) { + mmc->max_blk_size = 2; + } else { + mmc->max_blk_size = (caps & SDHCI_MAX_BLOCK_MASK) >> + SDHCI_MAX_BLOCK_SHIFT; + if (mmc->max_blk_size >= 3) { + printk(KERN_WARNING "%s: Invalid maximum block size, " + "assuming 512 bytes\n", mmc_hostname(mmc)); + mmc->max_blk_size = 0; + } + } + + mmc->max_blk_size = 512 << mmc->max_blk_size; /* * Maximum block count. @@ -1743,6 +1839,8 @@ int sdhci_add_host(struct sdhci_host *host) (host->flags & SDHCI_USE_ADMA)?"A":"", (host->flags & SDHCI_USE_DMA)?"DMA":"PIO"); + sdhci_enable_card_detection(host); + return 0; #ifdef SDHCI_USE_LEDS_CLASS @@ -1779,6 +1877,8 @@ void sdhci_remove_host(struct sdhci_host *host, int dead) spin_unlock_irqrestore(&host->lock, flags); } + sdhci_disable_card_detection(host); + mmc_remove_host(host->mmc); #ifdef SDHCI_USE_LEDS_CLASS |