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delay more time for sd card input for rk29

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This commit is contained in:
lhh
2010-12-21 15:07:37 +08:00
parent 909b057b9d
commit 41d1253454
1 changed files with 4 additions and 5 deletions
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9
drivers/mmc/host/rk29_sdmmc.c
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@@ -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;