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authorVenkat Gopalakrishnan <venkatg@codeaurora.org>2017-11-29 15:41:05 +0200
committerUlf Hansson <ulf.hansson@linaro.org>2017-12-11 12:44:34 +0100
commita4080225f51dcea129d26185a35acfbb3770a32d (patch)
tree45eed6de946f81471f08b1e7123a37ae9d342d72 /drivers/mmc/host/Kconfig
parent1e8e55b67030c6a2fef893d428bdcd611f73705c (diff)
downloadlinux-a4080225f51dcea129d26185a35acfbb3770a32d.tar.bz2
mmc: cqhci: support for command queue enabled host
This patch adds CMDQ support for command-queue compatible hosts. Command queue is added in eMMC-5.1 specification. This enables the controller to process upto 32 requests at a time. Adrian Hunter contributed renaming to cqhci, recovery, suspend and resume, cqhci_off, cqhci_wait_for_idle, and external timeout handling. Signed-off-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Sujit Reddy Thumma <sthumma@codeaurora.org> Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org> Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org> Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/mmc/host/Kconfig')
-rw-r--r--drivers/mmc/host/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 567028c9219a..3092b7085cb5 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -857,6 +857,19 @@ config MMC_SUNXI
This selects support for the SD/MMC Host Controller on
Allwinner sunxi SoCs.
+config MMC_CQHCI
+ tristate "Command Queue Host Controller Interface support"
+ depends on HAS_DMA
+ help
+ This selects the Command Queue Host Controller Interface (CQHCI)
+ support present in host controllers of Qualcomm Technologies, Inc
+ amongst others.
+ This controller supports eMMC devices with command queue support.
+
+ If you have a controller with this interface, say Y or M here.
+
+ If unsure, say N.
+
config MMC_TOSHIBA_PCI
tristate "Toshiba Type A SD/MMC Card Interface Driver"
depends on PCI