On 2014/10/31 18:43, Heiko Stübner wrote: > Am Freitag, 31. Oktober 2014, 11:50:09 schrieb Addy Ke: >> The bit of sdio interrupt is 16 in designware implementation, >> but it is 24 in RK3288. This patch add sdio_id0 for the number >> of slot0 in the SDIO interrupt registers, which can be set in >> platform DT table, such as: >> - rockchip,sdio-interrupt-slot0 = <8>; > > I just checked the manuals of rk3066 and rk3188 - and it seems the sdio > interrupt is in bit 24 on all of them. > > Addy, could you check this and maybe enable this for all two variants we > currently support? OK, I will do so in my next patch. thank you! > > > Thanks > Heiko > > >> >> Signed-off-by: Addy Ke <addy.ke@xxxxxxxxxxxxxx> >> --- >> Changes in v2: >> - rebase on http://git.linaro.org/git/people/ulf.hansson/mmc.git, next >> branch >> >> drivers/mmc/host/dw_mmc-rockchip.c | 13 +++++++++++++ >> drivers/mmc/host/dw_mmc.c | 12 +++++++----- >> drivers/mmc/host/dw_mmc.h | 2 ++ >> include/linux/mmc/dw_mmc.h | 3 +++ >> 4 files changed, 25 insertions(+), 5 deletions(-) >> >> diff --git a/drivers/mmc/host/dw_mmc-rockchip.c >> b/drivers/mmc/host/dw_mmc-rockchip.c index bbb4ec3..1cb3bc6 100644 >> --- a/drivers/mmc/host/dw_mmc-rockchip.c >> +++ b/drivers/mmc/host/dw_mmc-rockchip.c >> @@ -68,6 +68,18 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host, >> struct mmc_ios *ios) } >> } >> >> +static int dw_mci_rk3288_parse_dt(struct dw_mci *host) >> +{ >> + struct device_node *np = host->dev->of_node; >> + int sdio_id0; >> + >> + if (!of_property_read_u32(np, "rockchip,sdio-interrupt-slot0", >> + &sdio_id0)) >> + host->sdio_id0 = sdio_id0; >> + >> + return 0; >> +} >> + >> static const struct dw_mci_drv_data rk2928_drv_data = { >> .prepare_command = dw_mci_rockchip_prepare_command, >> }; >> @@ -76,6 +88,7 @@ static const struct dw_mci_drv_data rk3288_drv_data = { >> .prepare_command = dw_mci_rockchip_prepare_command, >> .set_ios = dw_mci_rk3288_set_ios, >> .setup_clock = dw_mci_rk3288_setup_clock, >> + .parse_dt = dw_mci_rk3288_parse_dt, >> }; >> >> static const struct of_device_id dw_mci_rockchip_match[] = { >> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c >> index bb46b1b..a633b58 100644 >> --- a/drivers/mmc/host/dw_mmc.c >> +++ b/drivers/mmc/host/dw_mmc.c >> @@ -823,7 +823,7 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, >> bool force_clkinit) >> >> /* enable clock; only low power if no SDIO */ >> clk_en_a = SDMMC_CLKEN_ENABLE << slot->id; >> - if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->id))) >> + if (!(mci_readl(host, INTMASK) & SDMMC_INT_SDIO(slot->sdio_id))) >> clk_en_a |= SDMMC_CLKEN_LOW_PWR << slot->id; >> mci_writel(host, CLKENA, clk_en_a); >> >> @@ -1184,10 +1184,10 @@ static void dw_mci_enable_sdio_irq(struct mmc_host >> *mmc, int enb) dw_mci_disable_low_power(slot); >> >> mci_writel(host, INTMASK, >> - (int_mask | SDMMC_INT_SDIO(slot->id))); >> + (int_mask | SDMMC_INT_SDIO(slot->sdio_id))); >> } else { >> mci_writel(host, INTMASK, >> - (int_mask & ~SDMMC_INT_SDIO(slot->id))); >> + (int_mask & ~SDMMC_INT_SDIO(slot->sdio_id))); >> } >> } >> >> @@ -2056,8 +2056,9 @@ static irqreturn_t dw_mci_interrupt(int irq, void >> *dev_id) /* Handle SDIO Interrupts */ >> for (i = 0; i < host->num_slots; i++) { >> struct dw_mci_slot *slot = host->slot[i]; >> - if (pending & SDMMC_INT_SDIO(i)) { >> - mci_writel(host, RINTSTS, SDMMC_INT_SDIO(i)); >> + if (pending & SDMMC_INT_SDIO(slot->sdio_id)) { >> + mci_writel(host, RINTSTS, >> + SDMMC_INT_SDIO(slot->sdio_id)); >> mmc_signal_sdio_irq(slot->mmc); >> } >> } >> @@ -2145,6 +2146,7 @@ static int dw_mci_init_slot(struct dw_mci *host, >> unsigned int id) >> >> slot = mmc_priv(mmc); >> slot->id = id; >> + slot->sdio_id = host->sdio_id0 + id; >> slot->mmc = mmc; >> slot->host = host; >> host->slot[id] = slot; >> diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h >> index 71d4995..0562f10 100644 >> --- a/drivers/mmc/host/dw_mmc.h >> +++ b/drivers/mmc/host/dw_mmc.h >> @@ -214,6 +214,7 @@ extern int dw_mci_resume(struct dw_mci *host); >> * with CONFIG_MMC_CLKGATE. >> * @flags: Random state bits associated with the slot. >> * @id: Number of this slot. >> + * @sdio_id: Number of this slot in the SDIO interrupt registers. >> */ >> struct dw_mci_slot { >> struct mmc_host *mmc; >> @@ -233,6 +234,7 @@ struct dw_mci_slot { >> #define DW_MMC_CARD_PRESENT 0 >> #define DW_MMC_CARD_NEED_INIT 1 >> int id; >> + int sdio_id; >> }; >> >> struct dw_mci_tuning_data { >> diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h >> index 69d0814..72c319f 100644 >> --- a/include/linux/mmc/dw_mmc.h >> +++ b/include/linux/mmc/dw_mmc.h >> @@ -96,6 +96,7 @@ struct mmc_data; >> * @quirks: Set of quirks that apply to specific versions of the IP. >> * @irq_flags: The flags to be passed to request_irq. >> * @irq: The irq value to be passed to request_irq. >> + * @sdio_id0: Number of slot0 in the SDIO interrupt registers. >> * >> * Locking >> * ======= >> @@ -191,6 +192,8 @@ struct dw_mci { >> bool vqmmc_enabled; >> unsigned long irq_flags; /* IRQ flags */ >> int irq; >> + >> + int sdio_id0; >> }; >> >> /* DMA ops for Internal/External DMAC interface */ > > > > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
