On 27/02/18 15:55, Phil Edworthy wrote: > Since the controller does not support the end-of-busy IRQ, don't use it. > Otherwise, on older SD cards you will get lots of these messages: > "mmc0: Got data interrupt 0x00000002 even though no data operation was in progress" SDHCI_QUIRK2_STOP_WITH_TC may be the quirk you want but it doesn't match your description. SDHCI_QUIRK2_STOP_WITH_TC is when we always get a TC (end-of-busy) IRQ with the STOP command even when we didn't ask for one. Hence the TC interrupt (0x00000002) comes when we think we are already finished. > > This has been reported on Xilinx devices that also use the Arasan IP. > See https://patchwork.kernel.org/patch/8062871/ > > This has been tested on the Renesas RZ/ND-DB board with the RZ/N1 SoC. > > Signed-off-by: Phil Edworthy <phil.edworthy@xxxxxxxxxxx> > --- > drivers/mmc/host/sdhci-of-arasan.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c > index c33a5f7..ab66e32 100644 > --- a/drivers/mmc/host/sdhci-of-arasan.c > +++ b/drivers/mmc/host/sdhci-of-arasan.c > @@ -290,7 +290,8 @@ static const struct sdhci_pltfm_data sdhci_arasan_pdata = { > .ops = &sdhci_arasan_ops, > .quirks = SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, > .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | > - SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN, > + SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN | > + SDHCI_QUIRK2_STOP_WITH_TC, > }; > > static u32 sdhci_arasan_cqhci_irq(struct sdhci_host *host, u32 intmask) >
