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Commit b7574bad authored by Gao, Yunpeng's avatar Gao, Yunpeng Committed by Ulf Hansson
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mmc: sdhci-pci: disable preset register for Baytrail and Merrifield 



Due to HW issue, SDHCI host controller on Intel
Baytrail/Merrifield platforms can not use preset
register. So, disable preset registers for them by quirks.

Signed-off-by: default avatarYunpeng Gao <yunpeng.gao@intel.com>
Signed-off-by: default avatarChuanxiao Dong <chuanxiao.dong@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 2e47e842

drivers/mmc/host/sdhci-pci.c

+6 −3
Original line number Original line Diff line number Diff line
@@ -287,13 +287,15 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_emmc = { 
};

};





static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {

static const struct sdhci_pci_fixes sdhci_intel_byt_sdio = {

	.quirks2	= SDHCI_QUIRK2_HOST_OFF_CARD_ON,

	.quirks2	= SDHCI_QUIRK2_HOST_OFF_CARD_ON |

			SDHCI_QUIRK2_PRESET_VALUE_BROKEN,

	.allow_runtime_pm = true,

	.allow_runtime_pm = true,

	.probe_slot	= byt_sdio_probe_slot,

	.probe_slot	= byt_sdio_probe_slot,

};

};





static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {

static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {

	.quirks2	= SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON,

	.quirks2	= SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |

			SDHCI_QUIRK2_PRESET_VALUE_BROKEN,

	.allow_runtime_pm = true,

	.allow_runtime_pm = true,

	.own_cd_for_runtime_pm = true,

	.own_cd_for_runtime_pm = true,

};

};
@@ -317,7 +319,8 @@ static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot) 




static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {

static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {

	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,

	.quirks2	= SDHCI_QUIRK2_BROKEN_HS200,

	.quirks2	= SDHCI_QUIRK2_BROKEN_HS200 |

			SDHCI_QUIRK2_PRESET_VALUE_BROKEN,

	.allow_runtime_pm = true,

	.allow_runtime_pm = true,

	.probe_slot	= intel_mrfl_mmc_probe_slot,

	.probe_slot	= intel_mrfl_mmc_probe_slot,

};

};