[PATCH] powerpc: oprofile support for POWER6

[powerpc.git] / drivers / mmc / pxamci.c

diff --git a/drivers/mmc/pxamci.c b/drivers/mmc/pxamci.c
index 285d7d0..b49368f 100644 (file)
--- a/drivers/mmc/pxamci.c
+++ b/drivers/mmc/pxamci.c
@@ -37,12 +37,6 @@
 
 #include "pxamci.h"
 
-#ifdef CONFIG_MMC_DEBUG
-#define DBG(x...)      printk(KERN_DEBUG x)
-#else
-#define DBG(x...)      do { } while (0)
-#endif
-
 #define DRIVER_NAME    "pxa2xx-mci"
 
 #define NR_SG  1
@@ -71,11 +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) {
@@ -119,6 +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;
@@ -129,9 +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) {
@@ -206,7 +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)
 {
-       DBG("PXAMCI: request done\n");
        host->mrq = NULL;
        host->cmd = NULL;
        host->data = NULL;
@@ -252,7 +243,7 @@ static int pxamci_cmd_done(struct pxamci_host *host, unsigned int stat)
                        if ((cmd->resp[0] & 0x80000000) == 0)
                                cmd->error = MMC_ERR_BADCRC;
                } else {
-                       DBG("ignoring CRC from command %d - *risky*\n",cmd->opcode);
+                       pr_debug("ignoring CRC from command %d - *risky*\n",cmd->opcode);
                }
 #else
                cmd->error = MMC_ERR_BADCRC;
@@ -292,14 +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 {
@@ -317,12 +308,10 @@ static irqreturn_t pxamci_irq(int irq, void *devid, struct pt_regs *regs)
 
        ireg = readl(host->base + MMC_I_REG);
 
-       DBG("PXAMCI: irq %08x\n", ireg);
-
        if (ireg) {
                unsigned stat = readl(host->base + MMC_STAT);
 
-               DBG("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);
@@ -376,10 +365,6 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
        struct pxamci_host *host = mmc_priv(mmc);
 
-       DBG("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)
@@ -405,8 +390,8 @@ static void pxamci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                        host->cmdat |= CMDAT_INIT;
        }
 
-       DBG("pxamci_set_ios: clkrt = %x cmdat = %x\n",
-           host->clkrt, host->cmdat);
+       pr_debug("PXAMCI: clkrt = %x cmdat = %x\n",
+                host->clkrt, host->cmdat);
 }
 
 static struct mmc_host_ops pxamci_ops = {
@@ -438,7 +423,7 @@ static int pxamci_probe(struct platform_device *pdev)
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
        irq = platform_get_irq(pdev, 0);
-       if (!r || irq == NO_IRQ)
+       if (!r || irq < 0)
                return -ENXIO;
 
        r = request_mem_region(r->start, SZ_4K, DRIVER_NAME);