Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754366AbaBUKiT (ORCPT ); Fri, 21 Feb 2014 05:38:19 -0500 Received: from rtits2.realtek.com ([60.250.210.242]:49941 "EHLO rtits2.realtek.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752514AbaBUKiR (ORCPT ); Fri, 21 Feb 2014 05:38:17 -0500 X-SpamFilter-By: BOX Solutions SpamTrap 5.39 with qID s1LAbRgH016978, This message is accepted by code: ctloc85258 From: To: , , CC: , , , , , , , , Micky Ching Subject: [PATCH] mmc: sdhci: add support for realtek rts5250 Date: Fri, 21 Feb 2014 18:40:35 +0800 Message-ID: <1392979235-26664-1-git-send-email-micky_ching@realsil.com.cn> X-Mailer: git-send-email 1.7.9.5 MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [172.29.41.103] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Micky Ching Add support for realtek rts5250 pci card reader. The card reader have some problem with DDR50 mode, so add a new quirks2 for broken ddr50. Signed-off-by: Micky Ching --- drivers/mmc/host/sdhci-pci.c | 20 ++++++++++++++++++++ drivers/mmc/host/sdhci.c | 3 ++- include/linux/mmc/sdhci.h | 2 ++ 3 files changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c index 0955777..fdc6121 100644 --- a/drivers/mmc/host/sdhci-pci.c +++ b/drivers/mmc/host/sdhci-pci.c @@ -610,6 +610,18 @@ static const struct sdhci_pci_fixes sdhci_via = { .probe = via_probe, }; +static int rtsx_probe_slot(struct sdhci_pci_slot *slot) +{ + slot->host->mmc->caps2 |= MMC_CAP2_HS200; + return 0; +} + +static const struct sdhci_pci_fixes sdhci_rtsx = { + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_BROKEN_DDR50, + .probe_slot = rtsx_probe_slot, +}; + static const struct pci_device_id pci_ids[] = { { .vendor = PCI_VENDOR_ID_RICOH, @@ -732,6 +744,14 @@ static const struct pci_device_id pci_ids[] = { }, { + .vendor = PCI_VENDOR_ID_REALTEK, + .device = 0x5250, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + .driver_data = (kernel_ulong_t)&sdhci_rtsx, + }, + + { .vendor = PCI_VENDOR_ID_INTEL, .device = PCI_DEVICE_ID_INTEL_MRST_SD0, .subvendor = PCI_ANY_ID, diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9ddef47..8958edc 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -3020,7 +3020,8 @@ int sdhci_add_host(struct sdhci_host *host) } else if (caps[1] & SDHCI_SUPPORT_SDR50) mmc->caps |= MMC_CAP_UHS_SDR50; - if (caps[1] & SDHCI_SUPPORT_DDR50) + if ((caps[1] & SDHCI_SUPPORT_DDR50) && + !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50)) mmc->caps |= MMC_CAP_UHS_DDR50; /* Does the host need tuning for SDR50? */ diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h index 362927c4..7be12b8 100644 --- a/include/linux/mmc/sdhci.h +++ b/include/linux/mmc/sdhci.h @@ -100,6 +100,8 @@ struct sdhci_host { #define SDHCI_QUIRK2_BROKEN_HOST_CONTROL (1<<5) /* Controller does not support HS200 */ #define SDHCI_QUIRK2_BROKEN_HS200 (1<<6) +/* Controller does not support DDR50 */ +#define SDHCI_QUIRK2_BROKEN_DDR50 (1<<7) int irq; /* Device IRQ */ void __iomem *ioaddr; /* Mapped address */ -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/