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sdhci: force high speed capability on some controllers 

Some high speed capable controllers forget to set the high speed
capability bit. Make sure we enable the functionality anyway.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
This commit is contained in:
Pierre Ossman 2008-08-16 20:43:04 +02:00
parent d6d8de3341
commit a4b7619377
3 changed files with 6 additions and 2 deletions
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3
drivers/mmc/host/sdhci-pci.c
View File

@ -144,7 +144,8 @@ static int jmicron_probe(struct sdhci_pci_chip *chip)
SDHCI_QUIRK_32BIT_DMA_SIZE |
SDHCI_QUIRK_32BIT_ADMA_SIZE |
SDHCI_QUIRK_RESET_AFTER_REQUEST |
SDHCI_QUIRK_BROKEN_SMALL_PIO;
SDHCI_QUIRK_BROKEN_SMALL_PIO |
SDHCI_QUIRK_FORCE_HIGHSPEED;
}
/*

3
drivers/mmc/host/sdhci.c
View File

@ -1631,7 +1631,8 @@ int sdhci_add_host(struct sdhci_host *host)
mmc->f_max = host->max_clk;
mmc->caps = MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
if (caps & SDHCI_CAN_DO_HISPD)
if ((caps & SDHCI_CAN_DO_HISPD) ||
(host->quirks & SDHCI_QUIRK_FORCE_HIGHSPEED))
mmc->caps |= MMC_CAP_SD_HIGHSPEED;
mmc->ocr_avail = 0;

2
drivers/mmc/host/sdhci.h
View File

@ -208,6 +208,8 @@ struct sdhci_host {
#define SDHCI_QUIRK_BROKEN_TIMEOUT_VAL (1<<12)
/* Controller has an issue with buffer bits for small transfers */
#define SDHCI_QUIRK_BROKEN_SMALL_PIO (1<<13)
/* Controller supports high speed but doesn't have the caps bit set */
#define SDHCI_QUIRK_FORCE_HIGHSPEED (1<<14)
int irq; /* Device IRQ */
void __iomem * ioaddr; /* Mapped address */