Hi, Addy.
On 11/03/2014 10:20 AM, Addy Ke wrote:
> The bit of sdio interrupt is 16 in designware implementation,
> but it is 24 on Rockchip SoCs.This patch add sdio_id0 for the
> number of slot0 in the SDIO interrupt registers.
>
> Signed-off-by: Addy Ke <addy...@rock-chips.com>
> ---
> Changes in v2:
> - rebase on http://git.linaro.org/git/people/ulf.hansson/mmc.git, next branch
> Changes in v3:
> - Remove dts for sdio_id0, just replace this with 8, suggested by Doug
> - Change to support all Rockchip Socs, suggested by Heiko
>
> drivers/mmc/host/dw_mmc-rockchip.c | 10 ++++++++++
> drivers/mmc/host/dw_mmc.c | 12 +++++++-----
> drivers/mmc/host/dw_mmc.h | 2 ++
> include/linux/mmc/dw_mmc.h | 3 +++
> 4 files changed, 22 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc-rockchip.c
> b/drivers/mmc/host/dw_mmc-rockchip.c
> index bbb4ec3..b997c8f 100644
> --- a/drivers/mmc/host/dw_mmc-rockchip.c
> +++ b/drivers/mmc/host/dw_mmc-rockchip.c
> @@ -68,14 +68,24 @@ static void dw_mci_rk3288_set_ios(struct dw_mci *host,
> struct mmc_ios *ios)
> }
> }
>
> +static int dw_mci_rockchip_parse_dt(struct dw_mci *host)
> +{
> + /* It is slot 8 on Rockchip SoCs */
> + host->sdio_id0 = 8;
> +
> + return 0;
> +}
Well, function is "__parse_dt__", but this function don't parse anything.
If All rockchip soc is supported, i think that it can be located to other place.
Best Regards,
Jaehoon Chung
> +
> static const struct dw_mci_drv_data rk2928_drv_data = {
> .prepare_command = dw_mci_rockchip_prepare_command,
> + .parse_dt = dw_mci_rockchip_parse_dt,
> };
>
> 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_rockchip_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 */
>
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