evie/android_kernel_oneplus_msm8998
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mmc: sdhci-msm: set dma mask for lpae/64-bit machines

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On machines that support more than 32-bit address via lpae or 64-bit buses
set the dma mask as 64-bit.

Change-Id: Ida88f3999fd5e7d09ebe73bb3481d3f1f4cf30c2
Signed-off-by: Krishna Konda <kkonda@codeaurora.org>
This commit is contained in:
Krishna Konda 2013-09-17 23:55:40 -07:00 • committed by Subhash Jadavani
parent 29ff049489
commit 9df7e24765
1 changed files with 8 additions and 1 deletions
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9
drivers/mmc/host/sdhci-msm.c
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@ -91,6 +91,9 @@
#define CORE_HC_SELECT_IN_HS400 (6 << 19)
#define CORE_HC_SELECT_IN_MASK (7 << 19)
#define CORE_VENDOR_SPEC_CAPABILITIES0 0x11C
#define CORE_SYS_BUS_SUPPORT_64_BIT 28
#define CORE_VENDOR_SPEC_ADMA_ERR_ADDR0 0x114
#define CORE_VENDOR_SPEC_ADMA_ERR_ADDR1 0x118
@ -2936,7 +2939,11 @@ static int sdhci_msm_probe(struct platform_device *pdev)
}
}
if (dma_supported(mmc_dev(host->mmc), DMA_BIT_MASK(32))) {
if ((sdhci_readl(host, SDHCI_CAPABILITIES) & SDHCI_CAN_64BIT) &&
(dma_supported(mmc_dev(host->mmc), DMA_BIT_MASK(64)))) {
host->dma_mask = DMA_BIT_MASK(64);
mmc_dev(host->mmc)->dma_mask = &host->dma_mask;
} else if (dma_supported(mmc_dev(host->mmc), DMA_BIT_MASK(32))) {
host->dma_mask = DMA_BIT_MASK(32);
mmc_dev(host->mmc)->dma_mask = &host->dma_mask;
} else {