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path: root/drivers/mmc/pxamci.c
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Diffstat (limited to 'drivers/mmc/pxamci.c')
-rw-r--r--drivers/mmc/pxamci.c27
1 files changed, 9 insertions, 18 deletions
diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index eb9a8826e9b5..b49368fd96b8 100644
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -65,11 +65,6 @@ struct pxamci_host {
unsigned int dma_dir;
};
-static inline unsigned int ns_to_clocks(unsigned int ns)
-{
- return (ns * (CLOCKRATE / 1000000) + 999) / 1000;
-}
-
static void pxamci_stop_clock(struct pxamci_host *host)
{
if (readl(host->base + MMC_STAT) & STAT_CLK_EN) {
@@ -113,6 +108,7 @@ static void pxamci_disable_irq(struct pxamci_host *host, unsigned int mask)
static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
{
unsigned int nob = data->blocks;
+ unsigned long long clks;
unsigned int timeout;
u32 dcmd;
int i;
@@ -123,9 +119,11 @@ static void pxamci_setup_data(struct pxamci_host *host, struct mmc_data *data)
nob = 0xffff;
writel(nob, host->base + MMC_NOB);
- writel(1 << data->blksz_bits, host->base + MMC_BLKLEN);
+ writel(data->blksz, host->base + MMC_BLKLEN);
- timeout = ns_to_clocks(data->timeout_ns) + data->timeout_clks;
+ clks = (unsigned long long)data->timeout_ns * CLOCKRATE;
+ do_div(clks, 1000000000UL);
+ timeout = (unsigned int)clks + (data->timeout_clks << host->clkrt);
writel((timeout + 255) / 256, host->base + MMC_RDTO);
if (data->flags & MMC_DATA_READ) {
@@ -200,7 +198,6 @@ static void pxamci_start_cmd(struct pxamci_host *host, struct mmc_command *cmd,
static void pxamci_finish_request(struct pxamci_host *host, struct mmc_request *mrq)
{
- pr_debug("PXAMCI: request done\n");
host->mrq = NULL;
host->cmd = NULL;
host->data = NULL;
@@ -286,14 +283,14 @@ static int pxamci_data_done(struct pxamci_host *host, unsigned int stat)
* data blocks as being in error.
*/
if (data->error == MMC_ERR_NONE)
- data->bytes_xfered = data->blocks << data->blksz_bits;
+ data->bytes_xfered = data->blocks * data->blksz;
else
data->bytes_xfered = 0;
pxamci_disable_irq(host, DATA_TRAN_DONE);
host->data = NULL;
- if (host->mrq->stop && data->error == MMC_ERR_NONE) {
+ if (host->mrq->stop) {
pxamci_stop_clock(host);
pxamci_start_cmd(host, host->mrq->stop, 0);
} else {
@@ -311,12 +308,10 @@ static irqreturn_t pxamci_irq(int irq, void *devid, struct pt_regs *regs)
ireg = readl(host->base + MMC_I_REG);
- pr_debug("PXAMCI: irq %08x\n", ireg);
-
if (ireg) {
unsigned stat = readl(host->base + MMC_STAT);
- pr_debug("PXAMCI: stat %08x\n", stat);
+ pr_debug("PXAMCI: irq %08x stat %08x\n", ireg, stat);
if (ireg & END_CMD_RES)
handled |= pxamci_cmd_done(host, stat);
@@ -370,10 +365,6 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
{
struct pxamci_host *host = mmc_priv(mmc);
- pr_debug("pxamci_set_ios: clock %u power %u vdd %u.%02u\n",
- ios->clock, ios->power_mode, ios->vdd / 100,
- ios->vdd % 100);
-
if (ios->clock) {
unsigned int clk = CLOCKRATE / ios->clock;
if (CLOCKRATE / clk > ios->clock)
@@ -399,7 +390,7 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->cmdat |= CMDAT_INIT;
}
- pr_debug("pxamci_set_ios: clkrt = %x cmdat = %x\n",
+ pr_debug("PXAMCI: clkrt = %x cmdat = %x\n",
host->clkrt, host->cmdat);
}