ADd quirks relevant to broken SDMA. If set to SDHCI_QUIRK_BROKEN_SDMA, it should be run the pio mode.
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com --- drivers/mmc/sdhci.c | 10 ++++++++-- include/sdhci.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c index 01fa5a9d4d..acda997fbc 100644 --- a/drivers/mmc/sdhci.c +++ b/drivers/mmc/sdhci.c @@ -728,12 +728,18 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
#ifdef CONFIG_MMC_SDHCI_SDMA if (!(caps & SDHCI_CAN_DO_SDMA)) { - printf("%s: Your controller doesn't support SDMA!!\n", + if (host->quirks & SDHCI_QUIRK_BROKEN_SDMA) { + caps &= ~SDHCI_CAN_DO_SDMA; + goto skip; + } else { + printf("%s: Your controller doesn't support SDMA!!\n", __func__); - return -EINVAL; + return -EINVAL; + } }
host->flags |= USE_SDMA; +skip: #endif #if CONFIG_IS_ENABLED(MMC_SDHCI_ADMA) if (!(caps & SDHCI_CAN_DO_ADMA2)) { diff --git a/include/sdhci.h b/include/sdhci.h index 01addb7a60..9865a9d6c8 100644 --- a/include/sdhci.h +++ b/include/sdhci.h @@ -243,6 +243,7 @@ #define SDHCI_QUIRK_WAIT_SEND_CMD (1 << 6) #define SDHCI_QUIRK_USE_WIDE8 (1 << 8) #define SDHCI_QUIRK_NO_1_8_V (1 << 9) +#define SDHCI_QUIRK_BROKEN_SDMA (1 << 10)
/* to make gcc happy */ struct sdhci_host;