linux-kernel - Re: [PATCH 2/2] mmc: sdhci: add DDR50 1.8V mode support for BayTrail eMMC Controller

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Date:	Thu, 10 Jul 2014 15:01:04 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Maurice Petallo <mauricex.r.petallo@...el.com>
Cc:	Chris Ball <chris@...ntf.net>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Adrian Hunter <adrian.hunter@...el.com>
Subject: Re: [PATCH 2/2] mmc: sdhci: add DDR50 1.8V mode support for BayTrail
 eMMC Controller

On 8 July 2014 13:11, Maurice Petallo <mauricex.r.petallo@...el.com> wrote:
> This is to enable DDR50 bus speed mode with 1.8V signaling capability
> for BayTrail ACPI and PCI mode eMMC Controller.
>
> Signed-off-by: Maurice Petallo <mauricex.r.petallo@...el.com>
> Acked-by: Adrian Hunter <adrian.hunter@...el.com>

Thanks! Applied for next.

Kind regards
Uffe


> ---
>  drivers/mmc/host/sdhci-acpi.c | 3 ++-
>  drivers/mmc/host/sdhci-pci.c  | 2 +-
>  2 files changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
> index 840788e..8c53370 100644
> --- a/drivers/mmc/host/sdhci-acpi.c
> +++ b/drivers/mmc/host/sdhci-acpi.c
> @@ -124,7 +124,8 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_int = {
>
>  static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
>         .chip    = &sdhci_acpi_chip_int,
> -       .caps    = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE | MMC_CAP_HW_RESET,
> +       .caps    = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
> +                  MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR,
>         .caps2   = MMC_CAP2_HC_ERASE_SZ,
>         .flags   = SDHCI_ACPI_RUNTIME_PM,
>         .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
> diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
> index 7514cc7..89bd721 100644
> --- a/drivers/mmc/host/sdhci-pci.c
> +++ b/drivers/mmc/host/sdhci-pci.c
> @@ -264,7 +264,7 @@ static void sdhci_pci_int_hw_reset(struct sdhci_host *host)
>  static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
>  {
>         slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
> -                                MMC_CAP_HW_RESET;
> +                                MMC_CAP_HW_RESET | MMC_CAP_1_8V_DDR;
>         slot->host->mmc->caps2 |= MMC_CAP2_HC_ERASE_SZ;
>         slot->hw_reset = sdhci_pci_int_hw_reset;
>         return 0;
> --
> 1.8.1.4
>
> --
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