diff options
| author | Joonyoung Shim <jy0922.shim@samsung.com> | 2013-04-26 06:35:22 (GMT) |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-05-26 18:23:19 (GMT) |
| commit | fc79a4d6dfa736672281aedbe384ece1f0044756 (patch) | |
| tree | fc0697bfa8c44bd7004e89636bd336e682dc76c5 /drivers/mmc/host/dw_mmc.c | |
| parent | 60443712195bbcbbff9af189bdd9d2c1ef0a5cae (diff) | |
| download | linux-fsl-qoriq-fc79a4d6dfa736672281aedbe384ece1f0044756.tar.xz | |
mmc: dw_mmc: clear IDSTS register when initialize IDMAC
If pending interrupt for IDMAC exists when initialize IDMAC, it will
call interrupt handler unnecessarily.
Signed-off-by: Joonyoung Shim <jy0922.shim@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/dw_mmc.c')
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 0652690..b10e5e1 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -51,6 +51,11 @@ #define DW_MCI_DMA_THRESHOLD 16 #ifdef CONFIG_MMC_DW_IDMAC +#define IDMAC_INT_CLR (SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \ + SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \ + SDMMC_IDMAC_INT_FBE | SDMMC_IDMAC_INT_RI | \ + SDMMC_IDMAC_INT_TI) + struct idmac_desc { u32 des0; /* Control Descriptor */ #define IDMAC_DES0_DIC BIT(1) @@ -433,6 +438,7 @@ static int dw_mci_idmac_init(struct dw_mci *host) mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET); /* Mask out interrupts - get Tx & Rx complete only */ + mci_writel(host, IDSTS, IDMAC_INT_CLR); mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | SDMMC_IDMAC_INT_RI | SDMMC_IDMAC_INT_TI); |