2.6.24 not recognizing 2G MMC card?

From: J. Bruce Fields
Date: Wed May 21 2008 - 13:24:38 EST

Please forgive a somewhat naive question--I'm not sure how to go about
debugging this kind of thing:

I have a Dell 1420n with card readers reported by lspci as:

03:01.1 SD Host controller: Ricoh Co Ltd R5C822 SD/SDIO/MMC/MS/MSPro Host Adapter (rev 22)
03:01.2 System peripheral: Ricoh Co Ltd R5C843 MMC Host Controller (rev 12)

I have a 512MB MicroSD card which seems to be recognized fine, but a 2GB
MMC card is not.

I'm using a stock Ubuntu 8.04 kernel, which reports itself as

Skimming through commits to drivers/mmc,
5ae70296c85f96a9969891d9de3410ebdf210b71 "mmc: Disabler for Ricoh MMC
controller", looks relevant, but seems to be included in 2.6.24.

Anything I should try? Thanks in advance for any suggestions.

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