Merge branch 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

[linux-2.6-omap-h63xx.git] / drivers / mmc / host / mmci.c

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 1bcbdd6763ace8d1dc3a91db7a5b1d0c76a67b63..2909bbc8ad009aa751522087618f3886d9853019 100644 (file)
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -430,6 +430,8 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
                                clk = 255;
                        host->cclk = host->mclk / (2 * (clk + 1));
                }
+               if (host->hw_designer == 0x80)
+                       clk |= MCI_FCEN; /* Bug fix in ST IP block */
                clk |= MCI_CLK_ENABLE;
        }
 
@@ -440,15 +442,27 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
        case MMC_POWER_OFF:
                break;
        case MMC_POWER_UP:
-               pwr |= MCI_PWR_UP;
-               break;
+               /* The ST version does not have this, fall through to POWER_ON */
+               if (host->hw_designer != 0x80) {
+                       pwr |= MCI_PWR_UP;
+                       break;
+               }
        case MMC_POWER_ON:
                pwr |= MCI_PWR_ON;
                break;
        }
 
-       if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN)
-               pwr |= MCI_ROD;
+       if (ios->bus_mode == MMC_BUSMODE_OPENDRAIN) {
+               if (host->hw_designer != 0x80)
+                       pwr |= MCI_ROD;
+               else {
+                       /*
+                        * The ST Micro variant use the ROD bit for something
+                        * else and only has OD (Open Drain).
+                        */
+                       pwr |= MCI_OD;
+               }
+       }
 
        writel(clk, host->base + MMCICLOCK);
 
@@ -500,6 +514,12 @@ static int mmci_probe(struct amba_device *dev, void *id)
        }
 
        host = mmc_priv(mmc);
+       /* Bits 12 thru 19 is the designer */
+       host->hw_designer = (dev->periphid >> 12) & 0xff;
+       /* Bits 20 thru 23 is the revison */
+       host->hw_revision = (dev->periphid >> 20) & 0xf;
+       DBG(host, "designer ID = 0x%02x\n", host->hw_designer);
+       DBG(host, "revision = 0x%01x\n", host->hw_revision);
        host->clk = clk_get(&dev->dev, NULL);
        if (IS_ERR(host->clk)) {
                ret = PTR_ERR(host->clk);
@@ -693,6 +713,15 @@ static struct amba_id mmci_ids[] = {
                .id     = 0x00041181,
                .mask   = 0x000fffff,
        },
+       /* ST Micro variants */
+       {
+               .id     = 0x00180180,
+               .mask   = 0x00ffffff,
+       },
+       {
+               .id     = 0x00280180,
+               .mask   = 0x00ffffff,
+       },
        { 0, 0 },
 };