[PATCH 5.6 029/194] mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040

Greg Kroah-Hartman
2020-05-18T18:01:02Z

From: Raul E Rangel <rrangel@chromium.org>

[ Upstream commit 45a3fe3bf93b7cfeddc28ef7386555e05dc57f06 ]

The AMD eMMC 5.0 controller does not support 64 bit DMA.

Fixes: 34597a3f60b1 ("mmc: sdhci-acpi: Add support for ACPI HID of AMD Controller with HS400")
Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Link: https://marc.info/?l=linux-mmc&m=158879884514552&w=2
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20200508165344.1.Id5bb8b1ae7ea576f26f9d91c761df7ccffbf58c5@changeid
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.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 2a2173d953f58..7da47196c596a 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,
};

--
2.20.1