diff options
Diffstat (limited to 'drivers/mtd/nand/atmel_nand.c')
| -rw-r--r-- | drivers/mtd/nand/atmel_nand.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c index 22e9137412b4..459acf01fefe 100644 --- a/drivers/mtd/nand/atmel_nand.c +++ b/drivers/mtd/nand/atmel_nand.c @@ -1661,11 +1661,19 @@ static int nfc_send_command(struct atmel_nand_host *host, static int nfc_device_ready(struct mtd_info *mtd) { + u32 status, mask; struct nand_chip *nand_chip = mtd->priv; struct atmel_nand_host *host = nand_chip->priv; - if (!nfc_wait_interrupt(host, NFC_SR_RB_EDGE)) - return 1; - return 0; + + status = nfc_read_status(host); + mask = nfc_readl(host->nfc->hsmc_regs, IMR); + + /* The mask should be 0. If not we may lost interrupts */ + if (unlikely(mask & status)) + dev_err(host->dev, "Lost the interrupt flags: 0x%08x\n", + mask & status); + + return status & NFC_SR_RB_EDGE; } static void nfc_select_chip(struct mtd_info *mtd, int chip) |