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authorDavid Vrabel <david.vrabel@csr.com>2010-09-02 14:15:08 +0000
committerChris Ball <cjb@laptop.org>2010-10-23 21:11:11 +0800
commit53f3a9e26ed5a94bd3caf732e7635692cd3c4402 (patch)
tree4324614f7891ff66eea931f146fec64769b9bb1e /drivers/mmc/host/Kconfig
parenta36274e0184193e393fb82957925c3981a6b0477 (diff)
mmc: USB SD Host Controller (USHC) driver
Add a driver for USB SD Host Controller devices. These devices are Cypress Astoria chips with firmware compliant with issue 2 of CSR's USHC specification. [cjb: adapt to block layer deprecation of max_{hw,phys}_segs] Signed-off-by: David Vrabel <david.vrabel@csr.com> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/Kconfig')
-rw-r--r--drivers/mmc/host/Kconfig14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 68d12794cfd9..8de7b9e8fc51 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -451,3 +451,17 @@ config MMC_JZ4740
SoCs.
If you have a board based on such a SoC and with a SD/MMC slot,
say Y or M here.
+
+config MMC_USHC
+ tristate "USB SD Host Controller (USHC) support"
+ depends on USB
+ help
+ This selects support for USB SD Host Controllers based on
+ the Cypress Astoria chip with firmware compliant with CSR's
+ USB SD Host Controller specification (CS-118793-SP).
+
+ CSR boards with this device include: USB<>SDIO (M1985v2),
+ and Ultrasira.
+
+ Note: These controllers only support SDIO cards and do not
+ support MMC or SD memory cards.