From: Raul E Rangel <rrangel@chromium.org>
To: Nehal-bakulchandra Shah <Nehal-bakulchandra.Shah@amd.com>,
linux-mmc@vger.kernel.org
Cc: evgreen@chromium.org, Joerg Roedel <jroedel@suse.de>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Daniel Kurtz <djkurtz@chromium.org>,
dianders@chromium.org, Ulf Hansson <ulf.hansson@linaro.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Raul E Rangel <rrangel@chromium.org>,
linux-kernel@vger.kernel.org
Subject: [PATCH] mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040
Date: Fri, 8 May 2020 16:54:21 -0600 [thread overview]
Message-ID: <20200508165344.1.Id5bb8b1ae7ea576f26f9d91c761df7ccffbf58c5@changeid> (raw)
The AMD eMMC 5.0 controller does not support 64 bit DMA.
See the discussion here: https://marc.info/?l=linux-mmc&m=158879884514552&w=2
Fixes: 34597a3f60b1 ("mmc: sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400")
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
---
drivers/mmc/host/sdhci-acpi.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index faba53cf139b..d8b76cb8698a 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -605,10 +605,12 @@ static int sdhci_acpi_emmc_amd_probe_slot(struct platform_device *pdev,
}
static const struct sdhci_acpi_slot sdhci_acpi_slot_amd_emmc = {
- .chip = &sdhci_acpi_chip_amd,
- .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
- .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR | SDHCI_QUIRK_32BIT_DMA_SIZE |
- SDHCI_QUIRK_32BIT_ADMA_SIZE,
+ .chip = &sdhci_acpi_chip_amd,
+ .caps = MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+ .quirks = SDHCI_QUIRK_32BIT_DMA_ADDR |
+ SDHCI_QUIRK_32BIT_DMA_SIZE |
+ SDHCI_QUIRK_32BIT_ADMA_SIZE,
+ .quirks2 = SDHCI_QUIRK2_BROKEN_64_BIT_DMA,
.probe_slot = sdhci_acpi_emmc_amd_probe_slot,
};
--
2.26.2.645.ge9eca65c58-goog
next reply other threads:[~2020-05-08 22:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-08 22:54 Raul E Rangel [this message]
2020-05-09 11:26 ` [PATCH] mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040 Andy Shevchenko
2020-05-10 11:33 ` Adrian Hunter
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