diff options
| author | Tony Olech <tony.olech@elandigitalsystems.com> | 2011-05-14 16:48:13 -0400 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2011-05-24 23:54:00 -0400 |
| commit | 88095e7b473a3d9ec3b9c60429576e9cbd327c89 (patch) | |
| tree | 567c4d5eeafb314271a21048441c79decdd776e4 /drivers/mmc/host/Kconfig | |
| parent | 73627f7ce11d135dcaf16730ecfad55c3fb12d30 (diff) | |
mmc: Add new VUB300 USB-to-SD/SDIO/MMC driver
Add a driver for Elan Digital System's VUB300 chip which is a USB
connected SDIO/SDmem/MMC host controller. A VUB300 chip enables a USB 2.0
or USB 1.1 connected host computer to use SDIO/SD/MMC cards without the
need for a directly connected, for example via PCI, SDIO host controller.
Signed-off-by: Anthony F Olech <tony.olech@elandigitalsystems.com>
[cjb: various punctuation and style fixes]
Tested-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'drivers/mmc/host/Kconfig')
| -rw-r--r-- | drivers/mmc/host/Kconfig | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig index b981715130c6..56dbf3f6ad08 100644 --- a/drivers/mmc/host/Kconfig +++ b/drivers/mmc/host/Kconfig @@ -535,6 +535,37 @@ config MMC_JZ4740 If you have a board based on such a SoC and with a SD/MMC slot, say Y or M here. +config MMC_VUB300 + tristate "VUB300 USB to SDIO/SD/MMC Host Controller support" + depends on USB + help + This selects support for Elan Digital Systems' VUB300 chip. + + The VUB300 is a USB-SDIO Host Controller Interface chip + that enables the host computer to use SDIO/SD/MMC cards + via a USB 2.0 or USB 1.1 host. + + The VUB300 chip will be found in both physically separate + USB to SDIO/SD/MMC adapters and embedded on some motherboards. + + The VUB300 chip supports SD and MMC memory cards in addition + to single and multifunction SDIO cards. + + Some SDIO cards will need a firmware file to be loaded and + sent to VUB300 chip in order to achieve better data throughput. + Download these "Offload Pseudocode" from Elan Digital Systems' + web-site http://www.elandigitalsystems.com/support/downloads.php + and put them in /lib/firmware. Note that without these additional + firmware files the VUB300 chip will still function, but not at + the best obtainable data rate. + + To compile this mmc host controller driver as a module, + choose M here: the module will be called vub300. + + If you have a computer with an embedded VUB300 chip + or if you intend connecting a USB adapter based on a + VUB300 chip say Y or M here. + config MMC_USHC tristate "USB SD Host Controller (USHC) support" depends on USB |