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Diffstat (limited to 'drivers/mmc')
-rw-r--r--drivers/mmc/host/Kconfig7
-rw-r--r--drivers/mmc/host/sdhci.c159
-rw-r--r--drivers/mmc/host/sdhci.h95
3 files changed, 180 insertions, 81 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 092baf66733..e8a7b50a01e 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -37,6 +37,13 @@ config MMC_SDHCI
If unsure, say N.
+config MMC_SDHCI_IO_ACCESSORS
+ bool
+ depends on MMC_SDHCI
+ help
+ This is silent Kconfig symbol that is selected by the drivers that
+ need to overwrite SDHCI IO memory accessors.
+
config MMC_SDHCI_PCI
tristate "SDHCI support on PCI bus"
depends on MMC_SDHCI && PCI
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index accb592764e..fd36b822f80 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");
}
@@ -92,12 +92,12 @@ static void sdhci_reset(struct sdhci_host *host, u8 mask)
unsigned long timeout;
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);
+ sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET);
if (mask & SDHCI_RESET_ALL)
host->clock = 0;
@@ -106,7 +106,7 @@ 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);
@@ -132,26 +132,26 @@ static void sdhci_init(struct sdhci_host *host)
SDHCI_INT_DMA_END | SDHCI_INT_DATA_END | SDHCI_INT_RESPONSE |
SDHCI_INT_ADMA_ERROR;
- writel(intmask, host->ioaddr + SDHCI_INT_ENABLE);
- writel(intmask, host->ioaddr + SDHCI_SIGNAL_ENABLE);
+ sdhci_writel(host, intmask, SDHCI_INT_ENABLE);
+ sdhci_writel(host, intmask, SDHCI_SIGNAL_ENABLE);
}
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 +205,7 @@ 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 +257,7 @@ 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 +292,7 @@ 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->data->flags & MMC_DATA_READ)
sdhci_read_block_pio(host);
else
@@ -581,7 +581,7 @@ 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 +661,8 @@ 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 +681,8 @@ 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 +693,14 @@ 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)) {
@@ -710,9 +710,8 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
}
/* 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 +732,7 @@ 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 +801,7 @@ 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 +820,7 @@ 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 +848,7 @@ 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 +861,15 @@ 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 +893,7 @@ static void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
if (clock == host->clock)
return;
- writew(0, host->ioaddr + SDHCI_CLOCK_CONTROL);
+ sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);
if (clock == 0)
goto out;
@@ -908,11 +906,11 @@ 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 +923,7 @@ 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 +937,7 @@ 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 +946,7 @@ 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 +971,9 @@ 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;
@@ -1005,7 +1002,7 @@ 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)
+ if (!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT)
|| (host->flags & SDHCI_DEVICE_DEAD)) {
host->mrq->cmd->error = -ENOMEDIUM;
tasklet_schedule(&host->finish_tasklet);
@@ -1034,7 +1031,7 @@ 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_writel(host, 0, SDHCI_SIGNAL_ENABLE);
sdhci_init(host);
}
@@ -1045,7 +1042,7 @@ 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 +1054,7 @@ 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,
@@ -1085,7 +1082,7 @@ 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);
@@ -1105,14 +1102,14 @@ 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_readl(host, 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_writel(host, ier, SDHCI_INT_ENABLE);
+ sdhci_writel(host, ier, SDHCI_SIGNAL_ENABLE);
out:
mmiowb();
@@ -1142,7 +1139,7 @@ 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));
@@ -1346,8 +1343,8 @@ 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) {
@@ -1373,7 +1370,7 @@ 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;
@@ -1384,22 +1381,22 @@ 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);
}
@@ -1410,7 +1407,7 @@ 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;
@@ -1425,7 +1422,7 @@ 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;
@@ -1537,7 +1534,7 @@ 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) {
@@ -1546,7 +1543,7 @@ 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;
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 43c37c68d07..d9733f84106 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -10,6 +10,9 @@
*/
#include <linux/scatterlist.h>
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/io.h>
/*
* Controller registers
@@ -267,9 +270,101 @@ struct sdhci_host {
struct sdhci_ops {
+#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
+ u32 (*readl)(struct sdhci_host *host, int reg);
+ u16 (*readw)(struct sdhci_host *host, int reg);
+ u8 (*readb)(struct sdhci_host *host, int reg);
+ void (*writel)(struct sdhci_host *host, u32 val, int reg);
+ void (*writew)(struct sdhci_host *host, u16 val, int reg);
+ void (*writeb)(struct sdhci_host *host, u8 val, int reg);
+#endif
+
int (*enable_dma)(struct sdhci_host *host);
};
+#ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
+
+static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg)
+{
+ if (unlikely(host->ops->writel))
+ host->ops->writel(host, val, reg);
+ else
+ writel(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg)
+{
+ if (unlikely(host->ops->writew))
+ host->ops->writew(host, val, reg);
+ else
+ writew(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+ if (unlikely(host->ops->writeb))
+ host->ops->writeb(host, val, reg);
+ else
+ writeb(val, host->ioaddr + reg);
+}
+
+static inline u32 sdhci_readl(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->readl))
+ return host->ops->readl(host, reg);
+ else
+ return readl(host->ioaddr + reg);
+}
+
+static inline u16 sdhci_readw(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->readw))
+ return host->ops->readw(host, reg);
+ else
+ return readw(host->ioaddr + reg);
+}
+
+static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
+{
+ if (unlikely(host->ops->readb))
+ return host->ops->readb(host, reg);
+ else
+ return readb(host->ioaddr + reg);
+}
+
+#else
+
+static inline void sdhci_writel(struct sdhci_host *host, u32 val, int reg)
+{
+ writel(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writew(struct sdhci_host *host, u16 val, int reg)
+{
+ writew(val, host->ioaddr + reg);
+}
+
+static inline void sdhci_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+ writeb(val, host->ioaddr + reg);
+}
+
+static inline u32 sdhci_readl(struct sdhci_host *host, int reg)
+{
+ return readl(host->ioaddr + reg);
+}
+
+static inline u16 sdhci_readw(struct sdhci_host *host, int reg)
+{
+ return readw(host->ioaddr + reg);
+}
+
+static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
+{
+ return readb(host->ioaddr + reg);
+}
+
+#endif /* CONFIG_MMC_SDHCI_IO_ACCESSORS */
extern struct sdhci_host *sdhci_alloc_host(struct device *dev,
size_t priv_size);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 04:54:43 +0000