delay more time for sd card input for rk29

diff --git a/drivers/mmc/host/rk29_sdmmc.c b/drivers/mmc/host/rk29_sdmmc.c
index fb17573ebe70be2f0387195f4857f63ebc7ed864..48909a70dcd11f833ff1a12f2477ddb0e43e0641 100755 (executable)
--- a/drivers/mmc/host/rk29_sdmmc.c
+++ b/drivers/mmc/host/rk29_sdmmc.c
@@ -518,7 +518,8 @@ void rk29_sdmmc_setup_bus(struct rk29_sdmmc *host)
 
        if (host->clock != host->current_speed) {
                div  = (((host->bus_hz + (host->bus_hz / 5)) / host->clock)) >> 1;
-               
+               if(!div)
+                       div = 1;
                /* store the actual clock for calculations */
                host->clock = (host->bus_hz / div) >> 1;
                /* disable clock */
@@ -1169,7 +1170,7 @@ static irqreturn_t rk29_sdmmc_interrupt(int irq, void *dev_id)
                                } else {
                                        clear_bit(RK29_SDMMC_CARD_PRESENT, &host->flags);
                                }                                                       
-                               mod_timer(&host->detect_timer, jiffies + msecs_to_jiffies(20));
+                               mod_timer(&host->detect_timer, jiffies + msecs_to_jiffies(100));
                        }
                }       
                if(pending & RK29_SDMMC_CMD_ERROR_FLAGS) {
@@ -1251,8 +1252,6 @@ static void rk29_sdmmc_detect_change(unsigned long data)
                        /* wait till resets clear */
                        while (rk29_sdmmc_read(host->regs, SDMMC_CTRL) & (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET | SDMMC_CTRL_DMA_RESET));
                        /* FIFO threshold settings  */
-                       rk29_sdmmc_write(host->regs, SDMMC_FIFOTH, ((0x3 << 28) | (0x0f << 16) | (0x10 << 0))); // RXMark = 15, TXMark = 16, DMA Size = 16
-                       rk29_sdmmc_write(host->regs, SDMMC_PWREN, 1);
                        rk29_sdmmc_write(host->regs, SDMMC_CTRL, rk29_sdmmc_read(host->regs, SDMMC_CTRL) | SDMMC_CTRL_INT_ENABLE);
                        host->data = NULL;
                        host->cmd = NULL;
@@ -1448,7 +1447,7 @@ static int rk29_sdmmc_probe(struct platform_device *pdev)
        platform_set_drvdata(pdev, host);       
        mmc->ops = &rk29_sdmmc_ops[pdev->id];
        mmc->f_min = host->bus_hz/510;
-       mmc->f_max = host->bus_hz/2;  //2;  ///20; //max f is clock to mmc_clk/2
+       mmc->f_max = host->bus_hz/20;  //2;  ///20; //max f is clock to mmc_clk/2
        mmc->ocr_avail = pdata->host_ocr_avail;
        mmc->caps = pdata->host_caps;
        mmc->max_phys_segs = 64;