From: Adrian Hunter <adrian.hunter@intel.com>
To: Ulf Hansson <ulf.hansson@linaro.org>, Chris Ball <chris@printf.net>
Cc: linux-mmc <linux-mmc@vger.kernel.org>
Subject: [PATCH 7/7] mmc: sdhci-pci: Fix Braswell eMMC timeout clock frequency
Date: Wed, 24 Sep 2014 10:27:33 +0300 [thread overview]
Message-ID: <1411543653-3728-8-git-send-email-adrian.hunter@intel.com> (raw)
In-Reply-To: <1411543653-3728-1-git-send-email-adrian.hunter@intel.com>
Braswell eMMC host controller specifies an incorrect
timeout clock frequncy in the capabilities registers.
The correct value is 1 MHz.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
drivers/mmc/host/sdhci-pci.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 39499fb..9e791e9 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -272,6 +272,8 @@ static int byt_emmc_probe_slot(struct sdhci_pci_slot *slot)
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;
+ if (slot->chip->pdev->device == PCI_DEVICE_ID_INTEL_BSW_EMMC)
+ slot->host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
return 0;
}
--
1.8.3.2
next prev parent reply other threads:[~2014-09-24 7:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-24 7:27 [PATCH 0/7] mmc: Some Braswell patches Adrian Hunter
2014-09-24 7:27 ` [PATCH 1/7] mmc: sdhci: Add quirk for always getting TC with stop cmd Adrian Hunter
2014-09-24 7:27 ` [PATCH 2/7] mmc: sdhci-acpi: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel host controllers Adrian Hunter
2014-09-24 7:27 ` [PATCH 3/7] mmc: sdhci-acpi: Add a HID and UID for a SD Card host controller Adrian Hunter
2014-09-24 7:27 ` [PATCH 4/7] mmc: sdhci-pci: Set SDHCI_QUIRK2_STOP_WITH_TC for Intel BYT host controllers Adrian Hunter
2014-09-24 7:27 ` [PATCH 5/7] mmc: sdhci-pci: Add Bay Trail and Braswell SD card detect Adrian Hunter
2014-09-24 7:27 ` [PATCH 6/7] mmc: sdhci: Let a driver override timeout clock frequency Adrian Hunter
2014-09-24 7:27 ` Adrian Hunter [this message]
2014-09-30 12:03 ` [PATCH 0/7] mmc: Some Braswell patches Adrian Hunter
2014-10-02 5:04 ` Adrian Hunter
2014-10-03 12:57 ` Ulf Hansson
2014-10-03 12:58 ` Adrian Hunter
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